Electronic wake-up apparatus and method of waking up thereof

Abstract

An electronic wake-up device and a wake-up method thereof, the electronic wake-up device comprising: a power switch device, an electronic device, a gravity sensor, and a wake-up circuit. The wake-up circuit is coupled to the electronic device and the gravity sensor, and is configured to generate an execution signal according to a sensing start signal, and generate an electronic device control signal to wake up the electronic device according to the execution signal and a gravity signal.

Description

[Technical Field]

[0001] This invention relates to an electronic wake-up device and its activation method, and more particularly to an electronic wake-up device and its activation method that makes gravity sensors with different starting conditions compatible with electronic devices. [Background Technology]

[0002] To save power, existing mobile electronic devices typically enter a sleep mode after being stationary for a period of time. A gravity sensor (G-sensor) is a commonly used wake-up component, used to detect whether the electronic device has been moved and output an interrupt signal to wake it up.

[0003] However, different brands of gravity sensors have different initial operating values. Some start when the initial value is 0, while others start when the initial value is 1, which limits the selection of gravity sensor components.

[0004] Therefore, how to provide an electronic wake-up device that is compatible with electronic devices for gravity sensors under different activation conditions is an issue that urgently needs to be studied by those in the field. [Summary of the Invention]

[0005] The purpose of this invention is to properly solve the problems of the prior art without significantly increasing design complexity or production costs.

[0006] To achieve the above objectives, the present invention provides an electronic wake-up device coupled to an electronic device, comprising:

[0007] A power switching device used to generate a power switching signal based on an input operation;

[0008] An electronic device coupled to a power switch device receives a power switch signal to be activated and generates a setting signal and a sensing activation signal.

[0009] A gravity sensor, coupled to an electronic device, receives a setting signal to enter the initial startup state. The gravity sensor generates a gravity signal based on changes in the weight of the electronic device; and

[0010] The wake-up circuit is coupled to the electronic device and the gravity sensor to receive the sensor start signal. The wake-up circuit generates an execution signal based on the sensor start signal, and generates an electronic device control signal based on the execution signal and the gravity signal to wake up the electronic device.

[0011] Optionally, in one embodiment of the present invention, the high potential of the power supply of the electronic device is at the same potential as the high potential of the power supply connected to the first input terminal of the flip-flop.

[0012] Optionally, in one embodiment of the present invention, the wake-up circuit includes:

[0013] A flip-flop, with its first input connected to a high-potential power supply and its second input coupled to an electronic device, outputs an execution signal based on a sensed start signal; and

[0014] A data multiplexer, coupled with a flip-flop, is used to receive execution signals to enter the operating state. The first input terminal of the data multiplexer is connected to the ground potential, and the second input terminal is coupled to a gravity sensor. When the data multiplexer is in the operating state, it generates an electronic device control signal based on the gravity signal to wake up the electronic device.

[0015] Optionally, in one embodiment of the present invention, the power switch device is coupled to the electronic device, and the power switch signal includes a power-on signal and a power-off signal. When the electronic device receives the power-off signal, the sensing start signal is at a low potential.

[0016] Optionally, in one embodiment of the present invention, when the gravity sensor is in the initial startup state, the gravity signal is at a low potential.

[0017] Optionally, in one embodiment of the present invention, when the electronic device control signal is at a low potential, the wake-up circuit wakes up the electronic device.

[0018] Optionally, in one embodiment of the present invention, the gravity sensor is connected to an electronic device through an interface module, the interface module including an integrated circuit bus.

[0019] Optionally, in one embodiment of the present invention, the gravity sensor is connected to an electronic device through an interface module, the interface module including a serial peripheral interface.

[0020] The present invention also provides a method for waking up an electronic device, comprising:

[0021] A power switch device is used to generate a power switch signal based on the input operation;

[0022] The electronic device receives the power switch signal to be activated and generates a setting signal and a sensing activation signal;

[0023] The system uses a gravity sensor to receive the set signal to enter the initial startup state, and generates a gravity signal based on changes in the weight of the electronic device; and

[0024] The electronic device is woken up using a wake-up circuit that generates an electronic device control signal based on the gravity signal and the sensing activation signal, including:

[0025] The flip-flop outputs an execution signal based on the sensing start signal;

[0026] The data multiplexer receives the execution signal and enters the operating state; and

[0027] When the data multiplexer is in operation, it generates an electronic device control signal based on the gravity signal to wake up the electronic device.

[0028] Optionally, in one embodiment of the present invention, the power switch device is coupled to the electronic device, and the power switch signal includes a power-on signal and a power-off signal. When the electronic device receives the power-off signal, the sensing start signal is at a low potential.

[0029] The present invention offers the following advantages: The embodiments of the present invention enable gravity sensors with different activation conditions to be compatible with electronic devices, avoiding limitations on the selection of gravity sensors suitable for electronic wake-up devices. Furthermore, the design of having the high power potential of the electronic device and the high power potential connected to the first input terminal of the flip-flop ensures the stability of the drive current flowing through the electronic wake-up device and increases the current amplitude driving the electronic wake-up device. Moreover, the present invention uses a circuit design that couples the power switch device to the electronic device, allowing users to simultaneously select to switch the electronic wake-up device and the electronic device on and off based on gravity changes and the input operation of the power switch device. Additionally, the gravity sensor can be connected to the electronic device via an integrated circuit bus (I2C) with a simple architecture and small footprint, reducing the circuit space occupied by the gravity sensor and the number of transistors used. Furthermore, the gravity sensor can also be connected to the electronic device via a high-speed serial peripheral interface (SPI) to improve the response speed of the gravity sensor to setting signals, thereby accurately sensing gravity changes in the electronic device and improving operational efficiency.

[0030] The following detailed description, using specific embodiments and accompanying drawings, will make it easier to understand the purpose, technical content, features, and effects achieved by this invention. [Attached Image Description]

[0031] Figure 1 This is a block diagram of an embodiment of the electronic wake-up device of the present invention.

[0032] Figure 2 This is a block diagram of an embodiment of the electronic wake-up device of the present invention.

[0033] Figure 3 This is a block diagram of an embodiment of the electronic wake-up device of the present invention.

[0034] Figure 4 This is a schematic diagram of the operation timing of the electronic wake-up device of the present invention.

[0035] Figure 5 This is a flowchart illustrating the electronic device wake-up method provided by the present invention.

[0036] Figure 6 This is a flowchart illustrating the electronic device wake-up method provided by the present invention.

Detailed Implementation Methods

[0037] This disclosure is specifically described by the following examples, which are merely illustrative. Various modifications and refinements can be made by those skilled in the art without departing from the spirit and scope of this invention. Therefore, the scope of protection of this invention is determined by the appended claims. Throughout this specification and claims, unless explicitly stated otherwise, the words "a" and "the" include statements containing "a or at least one" of the components or ingredients. Furthermore, as used herein, the singular article also includes statements of multiple components or ingredients unless clearly excluded from the specific context. Moreover, when applied in this description and all claims below, unless explicitly stated otherwise, "in which" may include both "in which" and "therein". The terms used throughout this specification and claims, unless otherwise specified, generally have their ordinary meaning in the art, in the content of this disclosure, and in the specific context. Certain terms used to describe the invention will be discussed below or elsewhere in this specification to provide additional guidance to practitioners in describing the invention. Examples throughout this specification, including examples of any terms discussed herein, are merely illustrative and do not limit the scope or meaning of the invention or any of the illustrative terms. Similarly, the invention is not limited to the various embodiments set forth in this specification.

[0038] It is understood that the terms "comprising," "including," "having," "containing," "involving," etc., used herein are open-ended, meaning they include but are not limited to. Furthermore, no embodiment or claim of this invention is required to achieve all the objects, advantages, or features disclosed in this invention. In addition, the abstract and headings are for patent search purposes only and are not intended to limit the claims of the invention.

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. In the present invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings, while "inner" and "outer" refer to the outline of the device.

[0040] Please refer to the accompanying drawings, where the same element symbols represent the same elements. The following description is based on the illustrated specific embodiments of the invention and should not be construed as limiting the invention to other specific embodiments not detailed herein.

[0041] Please refer to Figure 1 ,in Figure 1 This is a block diagram illustrating an embodiment of the electronic wake-up device of the present invention. The present invention provides an electronic wake-up device comprising: a power switch device 10 for generating a power switch signal POR based on an input operation; an electronic device 20 coupled to the power switch device 10, the electronic device 20 receiving the power switch signal POR to be activated, and generating a setting signal CON and a sensing start signal GS_EN; a gravity sensor 30 coupled to the electronic device 20 for receiving the setting signal CON to enter an initial start state, the gravity sensor 30 generating a gravity signal INT based on the gravity change of the electronic device 20; and a wake-up circuit 40 coupled to the electronic device 20 and the gravity sensor 30 for receiving the sensing start signal GS_EN, the wake-up circuit 40 generating an execution signal ST based on the sensing start signal GS_EN, and generating an electronic device control signal CRL based on the execution signal ST and the gravity signal INT to wake up the electronic device 20. The electronic wake-up device is configured to continuously detect whether the electronic device 20 needs to enter a sleep state after startup. For example, it enters a sleep state when the electronic device 20 has been idle for a preset duration or when it receives a sleep signal. The difference between the sleep state and the off state is that when the electronic device 20 is off, the sensing start signal GS_EN is at a low potential; when the electronic device 20 is in a sleep state, the sensing start signal GE_EN is at a high potential. This achieves the technical effect that when the electronic device 20 enters a sleep state and is not turned off again by the power switch signal POR, the wake-up circuit 40 can generate an electronic device control signal CRL based on the gravity signal INT to wake up the electronic device 20.

[0042] In one embodiment of the present invention, please refer to... Figure 2 and Figure 4 Figure 2 is a block diagram of an embodiment of the electronic wake-up device of the present invention. Figure 4 This is a schematic diagram of the operation timing of the electronic wake-up device of the present invention. Figure 2 The illustrated wake-up circuit 40 includes: a flip-flop 41, the first input of which is connected to a high power supply potential VDD, and the second input of which is coupled to the electronic device 20 to receive a sensing start signal GS_EN. When the sensing start signal GS_EN is high, the flip-flop 41 outputs an execution signal ST; and a data multiplexer 42, which is coupled to the flip-flop 41. The data multiplexer 42 receives the execution signal ST and enters the operating state. The first input of the data multiplexer 42 is connected to a ground potential GND, and the second input of the data multiplexer 42 is coupled to a gravity sensor 30. When the data multiplexer 42 is in the operating state and the gravity signal INT is low, the data multiplexer 42 generates an electronic device control signal CRL to wake up the electronic device 20. The flip-flop 41 can be a D flip-flop or other flip-flops that can achieve the above signal conversion; the data multiplexer 42 can be a 2 to 1 multiplexer or other data multiplexers that can achieve the above signal conversion.

[0043] In detail, when the power switch signal POR outputs a high potential, the electronic wake-up device enters the first execution stage I. When both the power switch signal POR and the sensing start signal GS_EN output a high potential, the electronic wake-up device enters the second execution stage II. When the data multiplexer 42 receives the execution signal ST and enters the operating state, the electronic wake-up device enters the third execution stage III. When the flip-flop 41 outputs a high-potential execution signal ST according to the sensing start signal GS_EN, controlling the electronic wake-up device to enter the third execution stage III from the second execution stage II, the data multiplexer 42 is in the operating state. At this time, the gravity signal INT will begin to affect the output of the wake-up circuit 40, so that the wake-up circuit 40 outputs the control signal CRL according to the signal change of the gravity signal INT. In the third execution phase III, since the first input terminal of the data multiplexer 42 is connected to the ground potential GND, when the data multiplexer 42 receives a high-potential gravity signal INT, it outputs a high-potential electronic device control signal CRL; conversely, when the data multiplexer 42 receives a low-potential gravity signal INT, it outputs a low-potential electronic device control signal CRL. The low-potential electronic device control signal CRL is configured to wake up the electronic device 20, while the high-potential electronic device control signal CRL is configured to put the electronic device 20 into a sleep state. That is, in the first execution phase I and the second execution phase II of the electronic wake-up device, the potential of the gravity signal INT does not affect the potential of the electronic device control signal CRL output by the electronic wake-up device.

[0044] With the above configuration, since the data multiplexer 42 that outputs the electronic device control signal CRL only operates after the flip-flop 41 senses the sensing start signal GS_EN, the signal change of the gravity signal INT is only used to wake up the electronic device 20 after the electronic device 20 outputs the sensing start signal GS_EN and the electronic wake-up device enters the third execution stage III. Furthermore, before the electronic device 20 activates the gravity sensor 30, the initial gravity signal of gravity sensors from different brands may be 1, 0, or other values. Therefore, the electronic device 20 of this invention first outputs a setting signal CON to the gravity sensor 30 to activate the gravity sensor 30, and only after the gravity sensor 30 is in the initial start-up state does the gravity sensor 30 output the gravity signal INT according to the gravity change, in order to avoid limiting the selection of gravity sensors 30 suitable for the electronic wake-up device.

[0045] In different embodiments of the present invention, the electronic device 20 may be a smartphone, stylus, tablet computer, laptop computer, smartwatch, or other mobile device.

[0046] It should be noted that when the power switch device 10 is equipped with a button device, its input operation can be a single press operation or a combination of press operations with different frequencies to output a power switch signal POR. Alternatively, the power switch device 10 can be configured as a wireless communication device with different communication protocol interfaces to facilitate the user to output wireless signals to the power switch device 10 to output a power switch signal POR.

[0047] In one embodiment of the present invention, the high power potential of the electronic device 20 is equal to the high power potential VDD connected to the first input terminal of the flip-flop 41, to ensure the stability of the drive current flowing through the electronic wake-up device and to increase the current amplitude driving the electronic wake-up device. In another embodiment of the present invention, the ground potential of the electronic device 20 is equal to the ground potential GND connected to the first input terminal of the data multiplexer 42, to ensure the safety of the electronic wake-up device when connected to the electronic device 20 and to reduce the risk of damage to the electronic wake-up device.

[0048] The power switch signal POR includes both a power-on signal and a power-off signal. For example, when the power switch signal POR is low, it is a power-off signal; when it is high, it is a power-on signal. When the power switch device 10 receives an input operation to turn on the electronic wake-up device, the power switch signal POR is high; when it receives an input operation to turn off the electronic wake-up device, it is low. The input operations to turn the electronic wake-up device on and off can be defined by the timing of pressing the operation interface of the power switch device 10, the difference in the command input to the power switch device 10, or the difference in the method of transmitting the command input to the power switch device 10.

[0049] Please refer to further details. Figure 3 , Figure 3 This is a block diagram of another embodiment of the electronic wake-up device of the present invention. Figure 3 and Figure 2 The difference in the provided embodiments is that the power switch device 10, gravity sensor 30, and wake-up circuit 40 can be disposed inside the electronic device 20 to improve the consistency between the change of gravity signal INT and the displacement change of the electronic device 20, facilitate carrying and sensing the movement of the electronic device 2, and reduce the configuration of circuit components therebetween.

[0050] In one embodiment of the present invention, the electronic wake-up device is configured such that when the power switch device 10 outputs a power-off signal, the electronic device 20 and the electronic wake-up device are simultaneously powered off. Furthermore, the sensing start signal GS_EN is at a low potential, and consequently, the execution signal ST is at a low potential, so the data multiplexer 42 is not in operation. In addition, during the process of the power switch device 10 outputting a power-on signal to start the electronic device 20, the sensing start signal GS_EN of the wake-up circuit is configured to be at a low potential. At this time, the execution signal ST is still at a low potential, so the data multiplexer 42 is also not in operation. Therefore, the electronic wake-up device of the present invention will not be affected by the gravity signal INT in the power switch device 10's startup process of the electronic device 20, ensuring that the electronic device 20 is started normally and will not mistakenly enter a sleep mode.

[0051] In one embodiment of the present invention, the gravity sensor 30 is configured to connect to the electronic device 20 through an interface module including an Inter-Integrated Circuit (I2C) bus. The electronic device 20 and the gravity sensor 30 are connected through an integrated circuit bus with a simple architecture and small footprint, so as to reduce the circuit space occupied by the gravity sensor 30 and the number of transistors used between the electronic device 20 and the electronic device 20.

[0052] In one embodiment of the present invention, the gravity sensor 30 is configured to connect to the electronic device 20 via an interface module including a Serial Peripheral Interface (SPI). The gravity sensor 30 is connected via a high data transmission rate Serial Peripheral Interface Bus (SPI) to improve the response speed of the gravity sensor 30 to the setting signal CON, thereby accurately sensing the gravity changes of the electronic device 20 and improving operating efficiency.

[0053] In addition, when electronic device 30 detects that it has not been used for a period of time, it enters a sleep state and outputs a sleep signal to gravity sensor 30 via the integrated circuit bus I2C or serial peripheral interface SPI. Upon receiving the sleep signal, gravity sensor 30 sets the gravity signal INT to 1. When there is a change in gravity, the gravity signal INT output by gravity sensor 30 becomes 0, thus waking up electronic device 20. Therefore, after the electronic wake-up device is activated, it can continuously detect whether sleep mode is needed and continuously sense changes in gravity to determine whether the electronic device needs to be woken up.

[0054] Please refer further to Figure 5, which is a flowchart illustrating the electronic device wake-up method provided by the present invention. The electronic device wake-up method provided by the present invention includes:

[0055] S10: Use a power switch device to generate a power switch signal based on the input operation.

[0056] S20: Uses an electronic device to receive a power switch signal to be activated, and generates a setting signal and a sensing activation signal.

[0057] S30: Uses a gravity sensor to receive a setting signal to enter the initial startup state, and generates a gravity signal based on the gravity changes of the electronic device.

[0058] S40: The wake-up circuit uses gravity signal and sensor start signal to generate electronic device control signal to wake up the electronic device.

[0059] Further, referring to Figure 6, in one embodiment of the present invention, the process S40 of using a wake-up circuit to generate an electronic device control signal to wake up the electronic device based on a gravity signal and a sensing activation signal can be designed to include:

[0060] S41: Use a flip-flop to output an execution signal based on the sensor start signal.

[0061] S42: Use a data multiplexer to receive execution signals and enter the operating state.

[0062] S43: When the data multiplexer is in operation, the data multiplexer generates an electronic device control signal to wake up the electronic device based on the sensor start signal and the gravity signal.

[0063] The present invention has the following beneficial effects: The embodiments of the present invention enable gravity sensors with different activation conditions to be compatible with electronic devices, avoiding limitations on the selection of gravity sensors suitable for electronic wake-up devices. Furthermore, the design of having the high power potential of the electronic device and the high power potential connected to the first input terminal of the flip-flop at the same potential ensures the stability of the drive current flowing through the electronic wake-up device and improves the current amplitude driving the electronic wake-up device. Moreover, the design of sharing a ground potential between the data multiplexer and the electronic device ensures the safety of the electronic wake-up device under heavy loads and prevents damage to the electronic wake-up device.

[0064] Furthermore, this invention employs a circuit design that couples the power switch and the electronic device, allowing users to simultaneously select between gravity changes and the power switch input to turn the electronic wake-up device and the electronic device on and off. Additionally, the gravity sensor can connect to the electronic device via an I2C bus, which has a simple architecture and small footprint, reducing the circuit space occupied by the gravity sensor and the number of transistors used. Moreover, the gravity sensor can also connect to the electronic device via a high-speed Serial Peripheral Interface (SPI) to improve the response speed of the gravity sensor to setting signals, thereby accurately sensing gravity changes in the electronic device and improving operational efficiency.

[0065] It should be noted that the combination of the various elements in this invention preferably forms the above-mentioned multiple embodiments, but this should not be construed as a limitation of this invention. That is, the various elements in this invention can have more combinations, and are not limited to the above-mentioned multiple embodiments.

[0066] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of the present invention. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electronic wake-up device, characterized in that, Include: A power switching device used to generate a power switching signal based on an input operation; An electronic device coupled to the power switch device, the electronic device receiving the power switch signal to be activated, and generating a setting signal and a sensing activation signal; A gravity sensor, coupled to the electronic device, is used to receive the set signal to enter the initial start-up state. The gravity sensor generates a gravity signal based on the gravity change of the electronic device. as well as A wake-up circuit, coupled to the electronic device and the gravity sensor, is used to receive the sensing start signal. The wake-up circuit is used to generate an execution signal based on the sensing start signal, and to generate an electronic device control signal based on the execution signal and the gravity signal to wake up the electronic device.

2. The electronic wake-up device as described in claim 1, characterized in that, The wake-up circuit includes a flip-flop, and the high power potential of the electronic device is at the same potential as the high power potential of the power supply connected to the first input terminal of the flip-flop.

3. The electronic wake-up device as described in claim 1, characterized in that, The wake-up circuit includes: A flip-flop, wherein the first input terminal of the flip-flop is connected to a high potential power supply, and the second input terminal of the flip-flop is coupled to the electronic device, and the flip-flop is used to output the execution signal according to the sensing start signal; as well as A data multiplexer is coupled to the flip-flop. The data multiplexer receives the execution signal to enter the operating state. The first input terminal of the data multiplexer is connected to the ground potential, and the second input terminal of the data multiplexer is coupled to the gravity sensor. When the data multiplexer is in the operating state, the data multiplexer generates the electronic device control signal to wake up the electronic device based on the gravity signal.

4. The electronic wake-up device as described in claim 1, characterized in that, The power switch device is coupled to the electronic device, and the power switch signal includes a power-on signal and a power-off signal. When the electronic device receives the power-off signal, the sensing start signal is at a low potential.

5. The electronic wake-up device as described in claim 1, characterized in that, When the gravity sensor is in the initial startup state, the gravity signal is at a low potential.

6. The electronic wake-up device as described in claim 1, characterized in that, When the electronic device control signal is at a low potential, the wake-up circuit wakes up the electronic device.

7. The electronic wake-up device as described in claim 1, characterized in that, The gravity sensor is connected to the electronic device via an interface module, which includes an integrated circuit bus.

8. The electronic wake-up device as described in claim 1, characterized in that, The gravity sensor is connected to the electronic device via an interface module, the interface module including a serial peripheral interface.

9. A method for waking up an electronic device, characterized in that, Include: A power switch device is used to generate a power switch signal based on the input operation; The electronic device receives the power switch signal to be activated and generates a setting signal and a sensing activation signal; The gravity sensor receives the set signal to enter the initial start-up state and generates a gravity signal based on the gravity change of the electronic device. as well as The electronic device is woken up using a wake-up circuit that generates an electronic device control signal based on the gravity signal and the sensing activation signal, including: The flip-flop outputs an execution signal based on the sensing start signal; The data multiplexer receives the execution signal and enters the operating state; as well as When the data multiplexer is in operation, it generates a control signal for the electronic device based on the gravity signal to wake up the electronic device.

10. The method for waking up an electronic device as described in claim 9, characterized in that, The power switch device is coupled to the electronic device, and the power switch signal includes a power-on signal and a power-off signal. When the electronic device receives the power-off signal, the sensing start signal is at a low potential.

Images