Lighting device, lighting system and method of generating a lighting effect using the same

Abstract

A lighting device is provided. The lighting device can include at least one light emitting device, a data receiver configured to receive a control signal for the at least one light emitting device, the control signal including color data and current gain data, a controller configured to transmit the color data to the at least one light emitting device to control a hue of each corresponding light emitting device of the at least one light emitting device, a constant current module configured to provide a constant current to each corresponding light emitting device of the at least one light emitting device, and a current gain module configured to modulate a current value of the constant current provided by the constant current module to each corresponding light emitting device based on the current gain data.

Description

Technical Field

[0001] This disclosure relates to a system and method for producing lighting effects. In particular, this disclosure relates to a system and method for producing lighting effects using at least one light-emitting device. Background Technology

[0002] Illumination effects generated by light-emitting devices (such as LEDs) are used in a variety of products. These effects help enhance the visual experience for users. For example, computing technology allows users (such as gamers) to use one or more computer peripherals, such as keyboards, mice, touchpads, etc., each with multiple light-emitting devices that can selectively produce various lighting colors over time to generate illumination events. These illumination events generated by computer peripherals can enhance the player's gaming experience, making it more realistic, engaging, and interactive.

[0003] Therefore, there is a need to provide a system and method for improving the lighting effect produced by a light-emitting device. Summary of the Invention

[0004] According to a first aspect of this disclosure, a lighting device is provided. The lighting device may include: at least one light-emitting device; a data receiver configured to receive a control signal for the at least one light-emitting device, the control signal including color data and current gain data; a controller configured to send color data to the at least one light-emitting device to control the hue of each corresponding light-emitting device among the at least one light-emitting device; a constant current module configured to provide a constant current to each corresponding light-emitting device among the at least one light-emitting device; and a current gain module configured to modulate the current value of the constant current provided by the constant current module to each corresponding light-emitting device based on the current gain data.

[0005] According to a second aspect of this disclosure, a lighting system is provided. The lighting system may include: first to Nth lighting devices connected in series, wherein N is an integer greater than or equal to 2; each of the first to Nth lighting devices is configured to receive a corresponding first to Nth control signal of a combined control signal, each control signal having an identification code. The first lighting device among the first to Nth lighting devices is configured to: receive a first control signal; and relay a first modulation control signal to a second lighting device among the first to Nth lighting devices, wherein the first modulation control signal is modulated based on the combined control signal and the first control signal. Each of the first to Nth lighting devices may include: at least one light-emitting device; a data receiver configured to receive a control signal for the at least one light-emitting device, the control signal including color data and current gain data; a controller configured to send color data to the at least one light-emitting device to control the hue of each corresponding light-emitting device among the at least one light-emitting device; a constant current module configured to provide a constant current to each corresponding light-emitting device among the at least one light-emitting device; and a current gain module configured to modulate the current value of the constant current provided by the constant current module to each corresponding light-emitting device based on the current gain data.

[0006] According to a third aspect of this disclosure, a method for generating an illumination effect by a lighting device is provided. The lighting device may include at least one light-emitting device, a data receiver, a controller, a constant current module, and a current gain module. The aforementioned method may include: receiving a control signal for at least one light-emitting device by the data receiver, the control signal including current gain data and color data; sending color data to the at least one light-emitting device by the controller to control the hue of each corresponding light-emitting device among the at least one light-emitting device; providing a constant current to each corresponding light-emitting device among the at least one light-emitting device by the constant current module; and modulating the current value of the constant current provided by the constant current module to each corresponding light-emitting device based on the current gain data by the current gain module.

[0007] According to a fourth aspect of this disclosure, a method for generating an illumination effect by a lighting system is provided. The lighting system may include first to Nth lighting devices, each of which may include at least one light-emitting device, a data receiver, a controller, a constant current module, and a current gain module, wherein N is an integer greater than or equal to 2. The aforementioned method may include: receiving corresponding first to Nth control signals by the first to Nth lighting devices; receiving a first control signal from a combined control signal including the first to Nth control signals by the first lighting device, each control signal having an identification code; relaying a first modulation control signal to a second lighting device among the first to Nth lighting devices, wherein the first modulation control signal is modulated based on the combined control signal and the first control signal; and performing the method as described herein on each of the first to Nth lighting devices. Attached Figure Description

[0008] In the accompanying drawings, the same element symbols generally refer to the same parts in different views. The drawings are not necessarily drawn to scale, but generally emphasize the principles of this disclosure. In the following description, various embodiments of this disclosure are described with reference to the following drawings.

[0009] Figure 1 A block diagram illustrating a lighting device including a light-emitting device according to an embodiment of the present disclosure.

[0010] Figure 2 To depict embodiments according to this disclosure Figure 1 A block diagram showing the control signals received by the data receiver of the lighting device over time.

[0011] Figure 3 A block diagram illustrating a lighting device comprising multiple light-emitting devices according to embodiments of the present disclosure.

[0012] Figure 4 To depict embodiments according to this disclosure Figure 3 A block diagram showing the control signals received by the data receiver of the lighting device over time.

[0013] Figure 5A , Figure 5B and Figure 5C Examples of pulse width modulation (PWM) signals with duty cycles of 25%, 50%, and 75% are shown respectively.

[0014] Figure 6 A block diagram illustrating a lighting device according to an embodiment of the present disclosure.

[0015] Figure 7A Showing examples of control signals before sharpening and magnification.

[0016] Figure 7BThis shows an example of the control signals after sharpening and magnification.

[0017] Figure 8 A block diagram illustrating a lighting system connected to a host system according to an embodiment of the present disclosure.

[0018] Figure 9 A diagram illustrating an exemplary configuration of a lighting device for an example lighting system according to an embodiment of the present disclosure.

[0019] Figure 10 To depict embodiments according to this disclosure Figure 8 A block diagram of the combined control signals received by the lighting system over time.

[0020] Figure 11 To depict embodiments according to this disclosure Figure 8 A block diagram of the control signal relay process for a lighting system.

[0021] Figure 12 A flowchart is provided to illustrate a method for producing lighting effects by a lighting device according to some embodiments of the present disclosure.

[0022] Figure 13 A flowchart is provided to illustrate a method for generating lighting effects by a lighting system according to some embodiments of the present disclosure. Detailed Implementation

[0023] The accompanying drawings, described in detail by way of example, illustrate specific details and embodiments that may implement this disclosure. These embodiments are described in sufficient detail to enable those skilled in the art to practice this disclosure. Other embodiments may be utilized, and structural, logical, optical, and electrical changes may be made without departing from the scope of this disclosure. The various embodiments are not necessarily mutually exclusive, as some embodiments may be combined with one or more other embodiments to form new embodiments.

[0024] The embodiments described in the context of one of the methods or apparatuses are similarly effective for other methods or apparatuses. Similarly, the embodiments described in the context of a method are similarly effective for an apparatus, and vice versa.

[0025] Features described in the context of an embodiment may be adapted accordingly to the same or similar features in other embodiments. Features described in the context of an embodiment may be adapted accordingly to other embodiments, even if not explicitly described in those other embodiments. Furthermore, additions and / or combinations and / or substitutions to feature descriptions in the context of an embodiment may be adapted accordingly to the same or similar features in other embodiments.

[0026] It should be understood that the terms “up,” “above,” “top,” “bottom,” “lower,” “side,” “back,” “left,” “right,” “front,” “back,” “lateral,” “side,” “upward,” “downward,” “vertical,” and “horizontal,” etc., are used for convenience and to aid in understanding relative position or direction in the following description, and are not intended to limit the orientation of any device or structure or any part thereof. Furthermore, unless otherwise expressly indicated throughout the text, the singular terms “a” and “the” include the plural forms. Similarly, unless otherwise expressly indicated throughout the text, the word “or” is intended to include “and.”

[0027] It will be further understood that the terms “comprises” (and any form of inclusion, such as “comprises” and “comprising”), “have” (and any form of having, such as “has” and “having”), “includes” (and any form of including, such as “includes” and “including”), and “contains” (and any form of containing, such as “contains” and “containing”) are open-ended connecting verbs. Therefore, a method or apparatus that “comprises,” “have,” “includes,” or “contains” one or more steps or elements possesses, but is not limited to, possessing only those steps or elements. Similarly, the elements of a method or apparatus that “comprises,” “have,” “includes,” or “contains” one or more features possess those features, but are not limited to possessing only those features. Furthermore, an apparatus or structure configured in a certain way is configured at least in this manner, but may also be configured in ways not listed.

[0028] As used throughout this specification and the claims, approximate terms can be used to modify any quantitative expression that may allow variation without altering its underlying functionality. Therefore, values ​​modified by one or more terms such as “about,” “substantially,” are not limited to specified exact values, but rather fall within operationally acceptable tolerances for embodiments intended for their application. In some cases, approximate terms may correspond to the precision of the instrument measuring that value.

[0029] The term “exemplary” may be used herein to mean “serving as an example, illustration, or description.” Any aspect or design described herein as “exemplary” is not necessarily to be construed as preferred or superior to other aspects or designs.

[0030] The terms “at least one” and “one or more” can be understood to include a numerical quantity of one or more (e.g., one, two, three, four, [...], etc.). The term “multiple” can be understood to include a numerical quantity of two or more (e.g., two, three, four, five, [...], etc.). The phrase “at least one of” relating to a group of elements can be used herein to mean at least one element from a group of these elements. For example, the phrase “at least one of” relating to a group of elements can be used herein to mean a selection of: one of the listed elements, one of the multiple listed elements, multiple individually listed elements, or multiple multiple listed elements.

[0031] The word “multiple” in the specification and claims explicitly refers to a quantity greater than one. Therefore, any phrase that explicitly refers to a certain number of objects (e.g., “multiple (objects)”) explicitly refers to more than one of the objects mentioned. The terms “group,” “set,” “collection,” “series,” “sequence,” “group,” etc., in the specification and claims, if applicable, refer to a quantity equal to or greater than one, i.e., one or more.

[0032] The terms “first,” “second,” and “third” used in detail herein are used to distinguish one element from another similar element and, unless otherwise stated, do not necessarily indicate order or relative importance.

[0033] As used herein, a phrase of the form "at least one of A or B" may include A or B or both A and B. Correspondingly, a phrase of the form "at least one of A, B, or C" or including any of the further listed items may include any and all combinations of one or more of the related listed items.

[0034] The following examples relate to various aspects of this disclosure.

[0035] Example 1 is a lighting device comprising: at least one light-emitting device; a data receiver configured to receive a control signal for the at least one light-emitting device, the control signal including color data and current gain data; a controller configured to send color data to the at least one light-emitting device to control the hue of each corresponding light-emitting device among the at least one light-emitting device; a constant current module configured to provide a constant current to each corresponding light-emitting device among the at least one light-emitting device; and a current gain module configured to modulate the current value of the constant current provided by the constant current module to each corresponding light-emitting device based on the current gain data.

[0036] In Example 2, the target of Example 1 visually requires that a data receiver be configured to receive subsequent control signals, wherein the control signals are received in a first time period and subsequent control signals are received in a second time period.

[0037] In Example 3, the target of Example 2 visually requires that there be a time interval between the first time period and the second time period.

[0038] In Example 4, the object of Example 1 visually requires that at least one light-emitting device includes a plurality of light-emitting devices connected in parallel.

[0039] In Example 5, the object of Example 1 visually requires the inclusion of a constant current module configured to receive voltage from a voltage supply source, wherein the lighting device further includes a bandgap voltage reference circuit configured to control the voltage to be constant.

[0040] In Example 6, the target of Example 1 visually requires the following: the lighting device further includes a data enhancer module configured to sharpen and amplify the control signal.

[0041] In Example 7, the target of Example 1 visually requires that: control signals are encoded, wherein the lighting device further includes a data decoder module configured to decode the control signals to obtain current gain data and color data.

[0042] In Example 8, the target of Example 7 visually requires the following: the lighting device further includes a data buffer module configured to store the acquired color data before sending it to the controller.

[0043] In Example 9, the object of Example 4 visually requires to include: multiple light-emitting devices including at least a red light-emitting device, a green light-emitting device and a blue light-emitting device.

[0044] In Example 10, the target of Example 4 visually requires the following: color data includes multiple subsets of color data, and each subset of color data is sent to each corresponding light-emitting device among multiple light-emitting devices to control the hue of each corresponding light-emitting device; wherein, current gain data includes multiple subsets of current gain data, and each subset of current gain data is used to control the current value of the constant current supplied to each corresponding light-emitting device.

[0045] In Example 11, the target of Example 10 visually requires: each subset of color data includes n bits of metadata, which are used to provide 2 n A combination of color tones.

[0046] In Example 12, the target of Example 10 visually requires that each current gain data subset include n bits of metadata, which are used to provide 2 n A combination of current values ​​to provide 2 to each corresponding light-emitting device. n A combination of brightness levels.

[0047] In Example 13, the object of Example 1 visually requires that: the controller is configured to generate and send pulse width modulation (PWM) signals to each corresponding light-emitting device in at least one light-emitting device, and change the duty cycle of the PWM signal of each corresponding light-emitting device to adjust the brightness of each corresponding light-emitting device.

[0048] Example 14 is a lighting system comprising: first to Nth lighting devices of Example 1 connected in series, wherein N is an integer greater than or equal to 2; wherein each of the first to Nth lighting devices is configured to receive a corresponding first to Nth control signal of a combined control signal, each control signal having an identification code; wherein the first lighting device among the first to Nth lighting devices is configured to: receive a first control signal; and relay a first modulation control signal to a second lighting device among the first to Nth lighting devices, wherein the first modulation control signal is modulated based on the combined control signal and the first control signal.

[0049] In Example 15, the object of Example 14 visually requires to include: a control signal generator configured to generate and transmit combined control signals.

[0050] In Example 16, the target of Example 15 visually requires that a control signal generator be configured to receive lighting commands from the host system and generate combined control signals based on the lighting commands.

[0051] In Example 17, the object of Example 15 may visually include: a control signal generator configured to: generate and transmit a first combined control signal in a first time period, the first combined control signal including first to Nth control signals in the first time period, each of the first to Nth control signals in the first time period having an identification code; generate and transmit a (M-1)th subsequent combined control signal in a (M-1)th time period, the (M-1)th subsequent combined control signal including first to Nth control signals in the (M-1)th subsequent time period, each of the first to Nth control signals in the (M-1)th subsequent time period having an identification code; wherein N is an integer greater than or equal to 2, and M is an integer greater than or equal to 2.

[0052] In Example 18, the target of Example 17 visually requires that there be a time interval between the (M-1)th time period and the Mth time period.

[0053] In Example 19, the target of Example 14 visually requires that, when N is an integer greater than or equal to 3, for each M, M is an integer and 2≤M≤N-1, the Mth lighting device among the first to Nth lighting devices is configured to relay the Mth modulation control signal to the (M+1)th lighting device among the first to Nth lighting devices, wherein the Mth modulation control signal is modulated based on the (M-1)th modulation control signal and the Mth control signal among the first to Nth control signals.

[0054] Example 20 is a method for producing an illumination effect by a lighting device, the lighting device including at least one light-emitting device, a data receiver, a controller, a constant current module, and a current gain module. The method includes: receiving a control signal for at least one light-emitting device by the data receiver, the control signal including current gain data and color data; sending color data to the at least one light-emitting device by the controller to control the hue of each corresponding light-emitting device among the at least one light-emitting device; providing a constant current to each corresponding light-emitting device among the at least one light-emitting device by the constant current module; and modulating the current value of the constant current provided by the constant current module to each corresponding light-emitting device based on the current gain data by the current gain module.

[0055] Example 21 is a method for generating lighting effects by a lighting system comprising first to Nth lighting devices, each of the first to Nth lighting devices including at least one light-emitting device, a data receiver, a controller, a constant current module, and a current gain module, wherein N is an integer greater than or equal to 2. The method comprises: receiving corresponding first to Nth control signals by the first to Nth lighting devices; receiving a first control signal from a combined control signal including the first to Nth control signals by the first lighting device, each control signal having an identification code; relaying a first modulation control signal to a second lighting device among the first to Nth lighting devices, wherein the first modulation control signal is modulated based on the combined control signal and the first control signal; and performing the method of Example 20 on each of the first to Nth lighting devices.

[0056] In Example 22, the target of Example 21 visually requires the following: the Mth modulation control signal is relayed from the Mth lighting device among the first to the Nth lighting devices to the (M+1)th lighting device among the first to the Nth lighting devices, wherein the Mth modulation control signal is modulated based on the (M-1)th modulation control signal and the Mth control signal among the first to the Nth control signals; for each M, when N is an integer greater than or equal to 3, M is an integer, and 2≤M≤N-1.

[0057] In Example 23, the object of Example 21 may require the following: a combination of control signals generated and transmitted by a control signal generator.

[0058] In various embodiments, lighting devices and lighting systems will now be described by the following non-limiting examples.

[0059] This disclosure provides a lighting device 100, including at least one light-emitting device 110, a data receiver 120, a controller 130, a constant current module 140, and a current gain module 150.

[0060] An example of the light-emitting device 110 can be a light-emitting diode.

[0061] The data receiver 120 can be configured to receive a control signal for at least one light-emitting device, and the control signal may include color data and current gain data. The control signal can be generated by a control signal generator (e.g., Figure 8 The control signal generator 170 generates the signal.

[0062] Controller 130 may include a field-programmable gate array (FPGA), application-specific integrated circuit (ASIC), programmable circuit board (PCB), or other suitable integrated circuit (IC) device. Controller 130 may be configured to receive color data from data receiver 120 and transmit the color data to at least one light-emitting device 110 to control the hue of a corresponding light-emitting device among the at least one light-emitting device 110. Hue can refer to a color (e.g., red, green, or blue) that is changed by adding black (making it darker) or white (making it brighter). Changing the hue can be a modification of the brightness or darkness of a color. Changing the hue can change the perceived color of the light-emitting device 110. For example, a darker hue of blue may appear deeper or more vivid than a brighter hue of the same blue.

[0063] The constant current module 140 can be configured to provide a constant current to each corresponding light-emitting device in the at least one light-emitting device 110. The constant current module 140 can be configured to receive voltage from a voltage supply source (VDD) 10. In some embodiments, the voltage supply source (VDD) 10 can provide a voltage of 5V to the constant current module 140.

[0064] The current gain module 150 can be configured to modulate the current value of the constant current supplied by the constant current module 140 to each corresponding light-emitting device based on the current gain data received from the data receiver 120.

[0065] In some embodiments, at least one light-emitting device 110 may include a light-emitting device 110. Figure 1 A block diagram illustrating an illumination device 100 including a light-emitting device 110 according to an embodiment of the present disclosure.

[0066] The data receiver 120 can be configured to receive control signals for the light-emitting device 110 over time. Figure 2 To depict embodiments according to this disclosure Figure 1 A block diagram of the control signal P1 received over time by the data receiver 120 of the lighting device 100.

[0067] According to various non-limiting embodiments, such as Figure 2 As shown, the data receiver 120 of the lighting device 100 can receive the initial control signal P1(t) in the first time period 22 (i.e., t). It can receive the (M-1)th subsequent control signal in the Mth time period (i.e., t+(M-1)), and there can be an (M-1)th time interval (e.g., a gap) between the (M-1)th and Mth time periods, where M is an integer greater than or equal to 2. For example, the first subsequent control signal P1(t+1) can be received in the second time period 26 (i.e., t+1), and there can be a first time interval 24 (e.g., a gap) between the first time period 22 and the second time period 26. Similarly, the second subsequent control signal P(t+2) can be received in the third time period 30 (i.e., t+2), and there can be a second time interval 28 (e.g., a gap) between the second time period 26 and the third time period 30. This can mean that during the first time interval 24 and the second time interval 28, the data receiver 120 of the lighting device 100 may not receive a control signal. The first time interval 24 and the second time interval 28 can be used as separators for control signals P1(t), P1(t+1) and P1(t+2), so that the lighting device 100 can distinguish between control signals P1(t), P1(t+1) and P1(t+2).

[0068] According to various non-limiting embodiments, such as Figure 2 As shown, the initial control signal and subsequent control signals can each include color data (B1) and current gain data (C1). For example, the initial control signal (P1(t)) can include color data (B1(t)) and current gain data (C1(t)), and the (M-1)th subsequent control signal (P1(t+M-1)) can include color data (B1(t+M-1)) and current gain data (C1(t+M-1)), where M is an integer greater than or equal to 2. Each piece of color data (B1) can contain m bits of metadata, which are used to provide 2 bits of data to the light-emitting device 110. m A combination of hues, where m is an integer. Each current gain data (C1) may contain n bits of metadata, which are used to provide 2 n A combination of current values ​​to provide 2 n A combination of brightness levels, where n is an integer. Figure 2In the example shown, m can be equal to 8, and n can be equal to 5. The 8-bit color data can be used to provide 2... 8 A combination of color tones. 5-bit current gain data can be used to provide 2 5 A combination of current values ​​to provide 2 5 A combination of brightness levels.

[0069] Brightness refers to the intensity or luminance of the light emitted by the light-emitting device 110. It is a measure of how much light is emitted, typically measured in lumens. Brightness can be controlled by adjusting the current flowing through the light-emitting device 110. Increasing the current makes the light-emitting device 110 brighter, while decreasing the current makes it dimmer. Changing the brightness affects the overall light output of the light-emitting device 110 without changing its color. Brighter light-emitting devices emit more light, while dimmer light-emitting devices emit less light.

[0070] Hue can refer to a change in color (e.g., red, green, or blue) caused by adding black (to darken) or white (to brighten). Changing the hue can be a modification of the brightness or darkness of a color. Changing the hue can change the perceived color of the light-emitting device 110. For example, a darker hue of blue can appear deeper or more vivid than a brighter hue of the same blue.

[0071] Brightness can be related to the intensity of the light emitted by the light-emitting device 110, while hue can be related to the lightness and darkness of the color of the light-emitting device 110. Both brightness and hue can be adjusted independently to achieve the desired lighting effect of the light-emitting device 110.

[0072] In some embodiments, at least one light-emitting device 110 may include a plurality of light-emitting devices 110. Figure 3 This is a block diagram illustrating an illumination device 100 comprising a plurality of light-emitting devices 110 according to an embodiment of the present disclosure. The plurality of light-emitting devices 110 may be connected in parallel. The plurality of light-emitting devices 110 may include at least a red light-emitting device 110a, a green light-emitting device 110b, and a blue light-emitting device 110c.

[0073] The data receiver 120 can be configured to receive control signals for a plurality of light-emitting devices 110 over time. Figure 4 To depict embodiments according to this disclosure Figure 3 A block diagram of the control signal P1 received over time by the data receiver 120 of the lighting device 100.

[0074] According to various non-limiting embodiments, such as Figure 4As shown, the data receiver 120 of the lighting device 100 can receive the initial control signal P1(t) in the first time period 32 (i.e., t). It can receive the (M-1)th subsequent control signal in the Mth time period (i.e., t+(M-1)), and there can be an (M-1)th time interval (e.g., a gap) between the (M-1)th and Mth time periods, where M is an integer greater than or equal to 2. For example, the first subsequent control signal P1(t+1) can be received in the second time period 36 (i.e., t+1), and there can be a first time interval 34 (e.g., a gap) between the first time period 32 and the second time period 36. Similarly, the second subsequent control signal P(t+2) can be received in the third time period 40 (i.e., t+2), and there can be a second time interval 38 (e.g., a gap) between the second time period 36 and the third time period 40. This can mean that during the first time interval 34 and the second time interval 38, the data receiver 120 of the lighting device 100 may not receive a control signal. The first time interval 34 and the second time interval 38 can be used as separators for control signals P1(t), P1(t+1) and P1(t+2), so that the lighting device 100 can distinguish between control signals P1(t), P1(t+1) and P1(t+2).

[0075] According to various non-limiting embodiments, such as Figure 4 As shown, the initial control signal and subsequent control signals can each include color data (B1) and current gain data (C1). For example, the initial control signal (P1(t)) can include color data (B1(t)) and current gain data (C1(t)), and the (M-1)th subsequent control signal (P1(t+M-1)) can include color data (B1(t+M-1)) and current gain data (C1(t+M-1)), where M is an integer greater than or equal to 2. Each set of color data (B1) can contain multiple subsets of color data (E11, E12, E13, etc.), and each subset of color data is sent to each corresponding light-emitting device among the multiple light-emitting devices 110 to control the hue of each corresponding light-emitting device (e.g., green, red, and blue light-emitting devices, respectively). For example, the color data (B1(t)) can contain multiple subsets of color data (E11(t), E12(t), E13(t)). Each subset of color data may include m bits of metadata, which are used to provide 2... mA combination of several hues, where m is an integer. Each current gain data (C1) may contain multiple current gain data subsets (F11, F12, F13, etc.), and each current gain data subset is used to control the current value of the constant current supplied to each corresponding light-emitting device among the multiple light-emitting devices 110, so as to control the brightness of each corresponding light-emitting device. For example, current gain data (C1(t)) may contain multiple current gain data subsets (F11(t), F12(t), F13(t)). Each current gain data subset may include n bits of metadata, which are used to provide 2 n A combination of current values ​​to provide 2 to each corresponding light-emitting device. n A combination of brightness levels, where n is an integer. Figure 4 In the example shown, m can be equal to 8, and n can be equal to 5. An 8-bit subset of color data can be used to provide 2... 8 A combination of color tones. A subset of 5-bit current gain data can be used to provide 2 5 A combination of current values ​​to provide 2 to each corresponding light-emitting device. 5 A combination of brightness levels.

[0076] Table 1 lists examples of 5-bit current gain data subsets and their corresponding current values ​​(IOUT).

[0077] [Table 1] Examples of 5-bit current gain data subsets and their corresponding current values ​​(IOUT)

[0078] In one instance, the current gain data (C1) may include 16 bits of metadata, wherein the first 5 bits of metadata are used to provide a combination of 32 current values ​​for the green light-emitting device, the second 5 bits of metadata are used to provide a combination of 32 current values ​​for the red light-emitting device, the third 5 bits of metadata are used to provide a combination of 32 current values ​​for the blue light-emitting device, and the last bit of metadata is reserved as S0.

[0079] For a lighting device 100 comprising a red light-emitting device, a green light-emitting device, and a blue light-emitting device, the color data (B1) contained in the initial control signal or subsequent control signal may each comprise three color data subsets (E11, E12, E13), and each color data subset is sent to the respective corresponding red, green, and blue light-emitting devices to control the hue of the respective light-emitting devices. The respective hue of each of the red, green, and blue light-emitting devices can result in the realization of a particular color or color combination by the red, green, and blue light-emitting devices. For example, an 8-bit color data subset can provide 2... 8A combination of various hues, and thus achieved by red, green, and blue light-emitting devices, 2² 4 A combination of different colors.

[0080] According to various non-limiting embodiments, controller 130 may be configured to generate and send pulse width modulation (PWM) signals to respective corresponding light-emitting devices in at least one light-emitting device 110, and change the duty cycle of the PWM signal of each corresponding light-emitting device to adjust the brightness of each corresponding light-emitting device. A higher level of brightness can be achieved by using a PWM signal with a larger duty cycle. Figure 5A , Figure 5B and Figure 5C Examples of PWM signals with duty cycles of 25%, 50%, and 75% are shown below. For the PWM signal with a 25% duty cycle (PWM1), the on time is 25% and the off time is 75%. For the PWM signal with a 50% duty cycle (PWM2), the on time is 50% and the off time is 50%. For the PWM signal with a 75% duty cycle (PWM3), the on time is 75% and the off time is 25%.

[0081] The controller 130 can be configured to generate a pulse width modulation (PWM) signal at a desired or predetermined fixed frequency using a clock, and to modify the duty cycle of the PWM signal to change the brightness of the color associated with the color data sent to each corresponding light-emitting device. In some embodiments, the controller 130 can be configured to generate three PWM signals, each for a corresponding red, green, and blue light-emitting device.

[0082] The lighting device 100 may include multiple pulse width modulation (PWM) devices, each configured to change the brightness of its corresponding light-emitting device. The PWM devices may be implemented using field-effect transistors (FETs), bipolar junction transistors (BJTs), or similar techniques. Each PWM device may be configured to generate a PWM signal at a desired or predetermined fixed frequency. The controller 130 may be configured to individually control each of the PWM devices to modify the duty cycle of the PWM signal generated by the PWM devices, thereby changing the brightness of the corresponding light-emitting device.

[0083] The data receiver 120 may include an input port configured to receive input signals and an output port configured to transmit output signals.

[0084] Figure 6 A block diagram illustrating a lighting device 200 according to an embodiment of the present disclosure. (See reference...) Figure 6 The lighting device 200 can be similar to Figure 1 and Figure 3The lighting device 100 includes at least one light-emitting device 210, a data receiver 220, a controller 230, a constant current module 240, and a current gain module 250.

[0085] Figure 6 The components of the lighting device 200 and Figure 1 and Figure 3 The corresponding components of the lighting device 100 are similar and use similar numbering. Regarding Figure 6 The description of these components in the lighting device 200 is applicable to Figure 1 and Figure 3 The lighting device 100, and vice versa.

[0086] At least one light-emitting device 210 may include multiple light-emitting devices 210. The multiple light-emitting devices 210 may be connected in parallel. The multiple light-emitting devices 210 may include at least one red light-emitting device 210a, a green light-emitting device 210b, and a blue light-emitting device 210c.

[0087] The constant current module 240 can be configured to receive voltage from the voltage supply source (VDD) 10. The lighting fixture 200 may include a bandgap voltage reference circuit 260, configured to control the voltage to remain constant. When the voltage supply source (VDD) 10, the electrical load, and / or the temperature change, the bandgap voltage reference circuit 260 can control the received voltage to maintain a constant value.

[0088] The lighting device 200 may include a data enhancer module 262 configured to sharpen and amplify control signals. After sharpening and amplification, the control signals can be transmitted over a distance of approximately 5 meters or more. Figure 7A Showing examples of control signals before sharpening and magnification. Figure 7B This shows an example of the control signals after sharpening and magnification.

[0089] The lighting device 200 may include a data decoder module 264 configured to decode control signals to obtain current gain data and color data, wherein the control signals are encoded. The data decoder module 264 may be a non-return-to-zero decoder module.

[0090] Before the control signal is sent to the data decoder module 264, the control signal can be temporarily stored (e.g., as a data latch) and buffered in the data enhancer module 262. This can help to give the control signal an improved waveform, allowing the control signal to be decoded more accurately.

[0091] The lighting device 200 may include a data buffer module 266 configured to store acquired color data before sending it to the controller 230. The data buffer module 266 may include a read-only memory (ROM). The color data may be temporarily stored in the data buffer module 266 before being sent to the controller 230.

[0092] The lighting device 200 may include a precision oscillator 280 and a clock generator 282. The clock generator 282 may be a phase-locked loop (PLL) based clock generator. The precision oscillator 280 and the clock generator 282 may be used to synchronize the data receiver 220, the data decoder module 264, the data buffer module 266, and the controller 230.

[0093] The data receiver 220 may include an input port 222 configured to receive input signals and an output port 224 configured to transmit output signals.

[0094] At least one light-emitting device 210 may each include a constant current driver configured to regulate the current supplied to the light-emitting device to maintain it at a constant level. The constant current driver can provide protection against voltage surges and fluctuations that could damage the light-emitting device.

[0095] Figure 8 This diagram illustrates a lighting system 600 that can be connected to a host system 20 according to embodiments of the present disclosure. The host system 20 may include any suitable system and / or device, such as, but not limited to, a personal computer, laptop, game console, etc. According to various non-limiting embodiments, the lighting system 600 may be physically and communicatively coupled to the host system 20 via an interface of the host system 20. The lighting system 600 may also be wirelessly and communicatively coupled to the host system 20 via an interface of the host system 20.

[0096] According to various non-limiting embodiments, the lighting system 600 may include a plurality of lighting devices 100 / 200 as described above (i.e., first to Nth lighting devices, where N is an integer greater than or equal to 2). The first to Nth lighting devices (i.e., 1001, 1002, 1003, ..., 100N, respectively) may be connected in series. The lighting system 600 may be a light strip mounted on a computer peripheral device 30 (such as a keyboard, mouse, touchpad, etc.).

[0097] Figure 9 A diagram illustrating an exemplary configuration of the first to Nth lighting devices of an example lighting system 600 according to an embodiment of the present disclosure. Figure 9 As shown, the lighting system 600 may include first to Nth lighting devices connected in series. The lighting system 600 may be mounted on a computer peripheral device 30 (e.g., a keyboard).

[0098] The first through N lighting devices can each be configured to receive corresponding first through N control signals of the combined control signal. Each of the first through N control signals may have an identification code.

[0099] In the context of various embodiments, "combined control signal" can refer to a control signal initially generated by a control signal generator that comprises multiple segmented / component signals (e.g., sub-signals). This can mean that the combined control signal includes multiple sub-signals that can be extracted or separated from the combined control signal. Combined control signal can be used interchangeably with composite control signal.

[0100] According to various non-limiting embodiments, the first to Nth control signals may each have a unique identification code, which enables the first to Nth lighting devices to identify the first to Nth control signals. For example, the identification code of the first to Nth control signals may include the sequence, data type, or tag of the first to Nth control signals.

[0101] Figure 10 To depict embodiments according to this disclosure Figure 8 A block diagram of the combined control signals received by the lighting system 600 over time.

[0102] According to various non-limiting embodiments, such as Figure 10 As shown, the multiple combined control signals received by the first lighting device 1001 of the lighting system 600 may include a first combined control signal and at least one subsequent combined control signal. The first combined control signal is received by the first lighting device 1001 of the lighting system 600 in a first time period 42 (i.e., t). At least one subsequent combined control signal may be received in the Mth time period (i.e., the (M-1)th subsequent time period) (i.e., t+(M-1)), and there may be an (M-1)th time interval (e.g., a gap) between the (M-1)th time period and the Mth time period, where M is an integer greater than or equal to 2. For example, the first subsequent combined control signal may be received in the second time period 46 (i.e., t+1), and there may be a first time interval 44 (e.g., a gap) between the first time period 42 and the second time period 46. Similarly, the second subsequent combined control signal may be received in the third time period 50 (i.e., t+2), and there may be a second time interval 48 (e.g., a gap) between the second time period 46 and the third time period 50. This means that during the first time interval 44 and the second time interval 48, the first lighting device 1001 of the lighting system 600 may not receive the combined control signal. The first time interval 44 and the second time interval 48 can serve as separators for the combined control signals received in time intervals t, t+1, and t+2, thereby enabling the first lighting device 1001 of the lighting system 600 to distinguish the combined control signals received in time intervals t, t+1, and t+2.

[0103] According to various non-limiting embodiments, such as Figure 10 As shown, each of the combined control signals may contain a first to an Nth control signal, namely P1, P2, ..., PN, where N is an integer. The first combined control signal received in the first time period 42 may include the first to an Nth control signal in the first time period 42 (i.e., P1(t), P2(t), ..., PN(t)). The (M-1)th subsequent combined control signal received in the (M-1)th subsequent time period (i.e., in the Mth time period) may include the first to an Nth control signal in the (M-1)th subsequent time period (i.e., P1(t+M-1), P2(t+M-1), ..., PN(t+M-1)), where N is an integer greater than or equal to 2. For example, the first subsequent combined control signal received in the second time period 46 may include the first to the Nth control signals in the second time period 46 (i.e., P1(t+1), P2(t+1), ...PN(t+1)), and the second subsequent combined control signal received in the third time period 50 may include the first to the Nth control signals in the third time period (i.e., P1(t+2), P2(t+2), ...PN(t+2)).

[0104] According to various non-limiting embodiments, the first to Nth control signals (P1(t), P2(t), ... PN(t)) in the first time period 42 may include color data (B1(t), B2(t), ... BN(t) respectively) and current gain data (C1(t), C2(t), ... CN(t) respectively). Similarly, the first to Nth control signals (i.e., P1(t+M-1), P2(t+M-1), ... PN(t+M-1)) in subsequent time periods (M-1) may include color data (i.e., B1(t+M-1), B2(t+M-1), ... BN(t+M-1) respectively) and current gain data (i.e., C1(t+M-1), C2(t+M-1), ... CN(t+M-1) respectively), where M is an integer greater than or equal to 2.

[0105] Each color data may include multiple subsets of color data. For example, color data (B1(t)) may include multiple subsets of color data (E11(t), E12(t), E13(t)). Each subset of color data is sent to a corresponding light-emitting device among the multiple light-emitting devices 110 to control the hue of the corresponding light-emitting device. Each subset of color data may include m bits of metadata, which are used to provide 2 mA combination of hues, where m is an integer. Each current gain data may include multiple subsets of current gain data. For example, current gain data (C1(t)) may include multiple subsets of current gain data (F11(t), F12(t), F13(t)). Each subset of current gain data is used to control the current value of the constant current supplied to each corresponding light-emitting device among the multiple light-emitting devices 110, so as to control the brightness of each corresponding light-emitting device. Each subset of current gain data may include n bits of metadata, which are used to provide 2 n A combination of current values ​​is used to provide 2 for each corresponding light-emitting device. n A combination of brightness levels, where n is an integer. For example, m can be equal to 8 and n can be equal to 5. An 8-bit subset of color data can be used to provide 2... 8 A combination of color tones. A subset of 5-bit current gain data can be used to provide 2 5 A combination of current values ​​is used to provide 2 for each corresponding light-emitting device. 5 A combination of brightness levels.

[0106] Figure 11 To depict embodiments according to this disclosure Figure 8 A block diagram 700 illustrates the control signal relay process of a lighting system 600. A first lighting device 1001, one of the first to Nth lighting devices, can be configured to receive a combined control signal (D1) (e.g., via an input port of the first lighting device 1001). The first lighting device 1001 can be further configured to modulate the combined control signal (D1) to generate a first modulated control signal (D2). The first lighting device 1001 can extract a first control signal (P1) from the combined control signal (D1) and generate the first modulated control signal (D2). The first modulated control signal (D2) can be transmitted from the first lighting device 1001 (e.g., via an output port of the first lighting device 1001) to a second lighting device. The first lighting device 1001 can be configured to receive the first control signal (P1) and relay the first modulated control signal (D2) to the second lighting device 1002, wherein the first modulated control signal (D2) is modulated based on the combined control signal (D1) and the first control signal (P1) of the first to Nth lighting devices.

[0107] According to various non-limiting embodiments, such as Figure 11As shown, when N is an integer equal to 2, the second lighting device 1002 can be configured to detect that the first modulation control signal (D2) contains only the second control signal (P2), and therefore stop modulating the first modulation control signal and generate a further modulation control signal. For example, the second lighting device can be configured to detect that the first modulation control signal (D2) contains only the second control signal by recognizing that the identification code associated with the second control signal (P2) is a unique identification code in the first modulation control signal (D2).

[0108] According to various non-limiting embodiments, such as Figure 11 As shown, when N is an integer greater than or equal to 3, for each M, M is an integer and 2≤M≤N-1, the Mth lighting device among the first to Nth lighting devices can be configured to receive the (M-1)th modulation control signal, for example, via the input port of the Mth lighting device. The Mth lighting device can be further configured to modulate the (M-1)th modulation control signal to generate the Mth modulation control signal. The Mth lighting device can extract the Mth control signal from the (M-1)th modulation control signal and generate the Mth modulation control signal. The Mth modulation control signal can be transmitted from the Mth lighting device (for example, via the output port of the Mth lighting device) to the (M+1)th lighting device among the first to Nth lighting devices. The Mth lighting device can be configured to receive the Mth control signal and relay the Mth modulation control signal to the (M+1)th lighting device, wherein the Mth modulation control signal is modulated based on the (M-1)th modulation control signal and the Mth control signal among the first to Nth signals.

[0109] For example, the second lighting device 1002 among the first to Nth lighting devices can be configured to receive a first modulation control signal, for example, via an input port of the second lighting device 1002. The second lighting device 1002 can be further configured to modulate the first modulation control signal (D2) to generate a second modulation control signal (D3). The second lighting device 1002 can extract a second control signal (P2) from the first modulation control signal (D2) and generate the second modulation control signal (D3). The second modulation control signal (D3) can be transmitted from the second lighting device 1002 (e.g., via an output port of the second lighting device 1002) to the third lighting device 1003 among the first to Nth lighting devices. The second lighting device 1002 can be configured to receive the second control signal (P2) and relay the second modulation control signal (D3) to the third lighting device 1003, wherein the second modulation control signal (D3) is modulated based on the first modulation control signal (D2) and the second control signal (P2) among the first to Nth signals.

[0110] The (N-1)th modulation control signal (DN) can be transmitted from the (N-1)th lighting device (e.g., via the output port of the (N-1)th lighting device) to the Nth lighting device. The Nth lighting device can be configured to detect that the (N-1)th modulation control signal (DN) contains only the Nth control signal, and therefore stop modulating the (N-1)th modulation control signal (DN) and generate a further modulation control signal. For example, the Nth lighting device can be configured to detect that the (N-1)th modulation control signal (DN) contains only the Nth control signal by recognizing that the identification code associated with the Nth control signal is a unique identification code in the (N-1)th modulation control signal.

[0111] The combined control signals (including the first combined control signal and subsequent combined control signals) received by the lighting system 600 over time can be used to control the color and brightness of each lighting device in the lighting system 600 within a predetermined time to achieve various lighting effects.

[0112] The lighting system 600 may include a control signal generator 170 configured to generate and transmit a first combination of control signals in a first time period, the first combination of control signals including first to Nth control signals in the first time period, each of the first to Nth control signals in the first time period having an identification code, where N is an integer greater than or equal to 2.

[0113] According to various non-limiting embodiments, the control signal generator 170 may be further configured to generate and transmit a (M-1)th subsequent combined control signal in the Mth time period, the (M-1)th subsequent combined control signal including first to Nth control signals in the (M-1)th subsequent time period, each of the first to Nth control signals in the (M-1)th subsequent time period having an identification code, where N is an integer greater than or equal to 2, and M is an integer greater than or equal to 2. A time interval may exist between the (M-1)th time period and the Mth time period, where M is an integer greater than or equal to 2.

[0114] According to various non-limiting embodiments, the control signal generator 170 of the lighting system 600 can be configured to receive lighting commands from the host system 20 and generate combined control signals based on the lighting commands.

[0115] The combined control signals can be programmed to control the color and brightness of each lighting device in the lighting system 600 within a predetermined time period to achieve various lighting effects. A computer input interface can be provided to allow users to program the color / brightness, color / brightness sequence, and color / brightness pattern of the lighting system 600 within a user-defined time period based on their specific preferences or requirements.

[0116] This disclosure provides a method 800 for generating an illumination effect from the above-described lighting device 100 / 200. The lighting device 100 / 200 includes at least one light-emitting device 110 / 210, a data receiver 120 / 220, a controller 130 / 230, a constant current module 140 / 240, and a current gain module. Figure 12 This is a flowchart illustrating a method 800 for producing an illumination effect by a lighting device 100 / 200 according to some embodiments of the present disclosure. Method 800 may include: i) Step 810, the data receiver receives a control signal for at least one light-emitting device, the control signal including current gain data and color data; ii) Step 820: The controller sends color data to at least one light-emitting device to control the hue of each corresponding light-emitting device in the at least one light-emitting device; iii) Step 830: The constant current module provides a constant current to each corresponding light-emitting device in at least one light-emitting device; iv) Step 840, the current gain module modulates the current value of the constant current provided by the constant current module to each corresponding light-emitting device based on the current gain data.

[0117] This disclosure provides a method 900 for generating lighting effects by the above-described lighting system 600, the lighting system 600 including first to Nth lighting devices, each of the first to Nth lighting devices including at least one light-emitting device 110 / 210, a data receiver 120 / 220, a controller 130 / 230, a constant current module 140 / 240 and a current gain module 150 / 250, wherein N is an integer greater than or equal to 2. Figure 13 A flowchart is provided to illustrate a method 900 for generating an illumination effect by a lighting system 600 according to some embodiments of the present disclosure. Method 900 may include: i) Step 910: The first to Nth lighting devices receive the corresponding first to Nth control signals; ii) Step 920, the first lighting device among the first to Nth lighting devices receives a first control signal from a combined control signal including the first to Nth control signals, each control signal having an identification code; iii) Step 930: The first modulation control signal is relayed from the first lighting device to the second lighting device among the first to Nth lighting devices, wherein the first modulation control signal is modulated based on the combined control signal and the first control signal; iv) Step 940, execute method 800 for each of the first to Nth lighting devices.

[0118] Method 900 may include step 950, whereby the Mth lighting device among the first to Nth lighting devices relays the Mth modulation control signal to the (M+1)th lighting device among the first to Nth lighting devices, wherein the Mth modulation control signal is modulated based on the (M-1)th modulation control signal and the Mth control signal among the first to Nth control signals, and for each M, M is an integer and 2≤M≤N-1, when N is an integer greater than or equal to 3.

[0119] Method 900 may include step 960, in which a control signal generator generates and transmits a combined control signal.

[0120] The lighting devices, lighting systems, and methods provided in this disclosure offer an advantageous way to adjust the brightness (e.g., by current gain data) and / or hue (e.g., by color data) of a light-emitting device to achieve a desired lighting effect.

[0121] Although this disclosure has been specifically shown and described with reference to specific embodiments, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the scope of this disclosure as defined by the appended claims. Therefore, the scope of this disclosure is indicated by the appended claims and is thus intended to cover all changes falling within the meaning and scope of equivalents of the claims.

Claims

1. A lighting device, characterized in that, include: At least one light-emitting device; A data receiver is configured to receive a control signal for the at least one light-emitting device, the control signal including color data and current gain data; A controller is configured to send the color data to the at least one light-emitting device to control the hue of each corresponding light-emitting device in the at least one light-emitting device; A constant current module is configured to provide a constant current to each of the corresponding light-emitting devices in the at least one light-emitting device; and The current gain module is configured to modulate the current value of the constant current provided by the constant current module to each of the corresponding light-emitting devices based on the current gain data.

2. The lighting device according to claim 1, characterized in that, The data receiver is configured to receive subsequent control signals, wherein the control signals are received in a first time period and the subsequent control signals are received in a second time period.

3. The lighting device according to claim 2, characterized in that, There is a time interval between the first time period and the second time period.

4. The lighting device according to claim 1, characterized in that, The at least one light-emitting device includes multiple light-emitting devices connected in parallel.

5. The lighting device according to claim 1, characterized in that, The constant current module is configured to receive voltage from a voltage supply source, wherein the lighting device further includes a bandgap voltage reference circuit configured to control the voltage to be constant.

6. The lighting device according to claim 1, characterized in that, The lighting device also includes a data enhancer module configured to sharpen and amplify the control signal.

7. The lighting device according to claim 1, characterized in that, The control signal is encoded, wherein the lighting device further includes a data decoder module configured to decode the control signal to obtain the current gain data and the color data.

8. The lighting device according to claim 7, characterized in that, The lighting device also includes a data buffer module configured to store the acquired color data before sending it to the controller.

9. The lighting device according to claim 4, characterized in that, The plurality of light-emitting devices include at least a red light-emitting device, a green light-emitting device, and a blue light-emitting device.

10. The lighting device according to claim 4, characterized in that, The color data includes multiple color data subsets, and each color data subset is sent to each corresponding light-emitting device among the multiple light-emitting devices to control the hue of each corresponding light-emitting device; The current gain data includes multiple current gain data subsets, and each current gain data subset is used to control the current value of the constant current supplied to the respective corresponding light-emitting devices.

11. The lighting device according to claim 10, characterized in that, Each subset of color data includes n bits of metadata, which are used to provide 2... n A combination of color tones.

12. The lighting device according to claim 10, characterized in that, Each subset of current gain data includes n bits of metadata, which are used to provide 2 n A combination of current values ​​to provide 2 to each of the corresponding light-emitting devices. n A combination of brightness levels.

13. The lighting device according to claim 1, characterized in that, The controller is configured to generate and send pulse width modulation (PWM) signals to each of the at least one light-emitting devices, and to change the duty cycle of the PWM signals of each of the corresponding light-emitting devices to adjust the brightness of each of the corresponding light-emitting devices.

14. A lighting system, characterized in that, include: The first to Nth lighting devices as described in claim 1 are connected in series, wherein N is an integer greater than or equal to 2; The first to Nth lighting devices are each configured to receive the first to Nth control signals corresponding to the combined control signals, and each control signal has an identification code. The first lighting device among the first to Nth lighting devices is configured as follows: Receive the first control signal; The first modulation control signal is relayed to the second lighting device among the first to Nth lighting devices, wherein the first modulation control signal is modulated based on the combined control signal and the first control signal.

15. The lighting system according to claim 14, characterized in that, The lighting system also includes a control signal generator configured to generate and transmit the combined control signals.

16. The lighting system according to claim 15, characterized in that, The control signal generator is configured to receive lighting commands from the host system and generate the combined control signal based on the lighting commands.

17. The lighting system according to claim 15, characterized in that, The control signal generator is configured to: A first combined control signal is generated and transmitted during a first time period. The first combined control signal includes first to Nth control signals during the first time period, and each of the first to Nth control signals during the first time period has an identification code. In the Mth time period, the (M-1)th subsequent combined control signal is generated and transmitted. The (M-1)th subsequent combined control signal includes the first to Nth control signals in the (M-1)th subsequent time period, and each of the first to Nth control signals in the (M-1)th subsequent time period has an identification code. Where N is an integer greater than or equal to 2, and M is an integer greater than or equal to 2.

18. The lighting system according to claim 17, characterized in that, There is a time interval between the (M-1)th time period and the Mth time period.

19. The lighting system according to claim 14, characterized in that, When N is an integer greater than or equal to 3, for each M, M is an integer and 2≤M≤N-1, the Mth lighting device among the first to Nth lighting devices is configured to relay the Mth modulation control signal to the (M+1)th lighting device among the first to Nth lighting devices, wherein the Mth modulation control signal is modulated based on the (M-1)th modulation control signal and the Mth control signal among the first to Nth control signals.

20. A method for producing an illumination effect by a lighting device, characterized in that, The lighting device includes at least one light-emitting device, a data receiver, a controller, a constant current module, and a current gain module. The method includes the following steps: The data receiver receives a control signal for the at least one light-emitting device, the control signal including current gain data and color data; The controller sends the color data to the at least one light-emitting device to control the hue of each corresponding light-emitting device in the at least one light-emitting device; The constant current module provides a constant current to each corresponding light-emitting device in the at least one light-emitting device; and The current gain module modulates the current value of the constant current provided by the constant current module to each corresponding light-emitting device based on the current gain data.

21. A method for producing an illumination effect by a lighting system, characterized in that, The lighting system includes first to Nth lighting devices, each of which includes at least one light-emitting device, a data receiver, a controller, a constant current module, and a current gain module, wherein N is an integer greater than or equal to 2. The method includes the following steps: The first to Nth lighting devices receive corresponding first to Nth control signals; The first lighting device among the first to Nth lighting devices receives a first control signal from a combined control signal including the first to Nth control signals, each control signal having an identification code; The first lighting device relays the first modulation control signal to the second lighting device among the first to Nth lighting devices, wherein the first modulation control signal is modulated based on the combined control signal and the first control signal; and The method of claim 20 is performed on each of the first to Nth lighting devices.

22. The method according to claim 21, characterized in that, The method further includes: The Mth modulation control signal is relayed from the Mth lighting device among the first to the Nth lighting devices to the (M+1)th lighting device among the first to the Nth lighting devices; wherein the Mth modulation control signal is modulated based on the (M-1)th modulation control signal and the Mth control signal among the first to the Nth control signals; for each M, 2≤M≤N-1, N is an integer greater than or equal to 3, and M is an integer.

23. The method according to claim 21, characterized in that, The method further includes: The control signal generator generates and transmits combined control signals.

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