An apparatus and electronic device for signal transmission

Abstract

The utility model provides a kind of device and electronic equipment for signal transmission.The device for signal transmission, comprising: controller, loss compensator and clock control unit;Clock control unit is connected with loss compensator, for providing reference clock signal for loss compensator;Loss compensator is used to connect sensor and signal receiving end, based on reference clock signal, the input signal from sensor is compensated and carries out clock recovery processing, to obtain regenerative signal and output regenerative signal to signal receiving end;Controller is connected with loss compensator and clock control unit respectively, for configuring loss compensator according to the attribute information of input signal, and controls clock control unit output reference clock signal. Thus, the device can effectively compensate the loss of signal transmitted via loss compensator, and is suitable for various transmission rate input signals.

Description

Technical Field

[0001] This utility model relates to the field of signal processing technology, and more specifically, to a device and electronic equipment for signal transmission. Background Technology

[0002] With the development of science and technology, more and more application scenarios require signal transmission technology. For example, for endoscopic equipment, it is usually necessary to transmit the signals from its sensors to a host receiver for processing. Signal loss occurs during transmission through the link. Again, using endoscopic equipment as an example, the sensor signals can be transmitted to the host via cables. The longer the cable, the greater the loss. These cables are typically 3 to 4 meters long and relatively thin, with a diameter generally around 38 AWG, resulting in a loss of approximately 8 dB / 2M. To ensure signal quality, signal loss compensation is usually necessary.

[0003] However, in related technologies, a dedicated compensation device is usually added to the transmission link to compensate for signal loss. This dedicated compensation device is generally designed for specific application scenarios and has limitations on signal transmission rates, for example, it is only suitable for signal transmission rates of 10.25Gbps to 11.1Gbps, resulting in poor versatility. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, an apparatus for signal transmission is provided, comprising: a controller, a loss compensator, and a clock control unit;

[0005] The clock control unit is connected to the loss compensator and is used to provide a reference clock signal for the loss compensator;

[0006] The loss compensator is used to connect the sensor and the signal receiver. It compensates for the input signal from the sensor based on the reference clock signal and performs clock recovery processing to obtain the regenerated signal and outputs the regenerated signal to the signal receiver.

[0007] The controller is connected to the loss compensator and the clock control unit respectively. It is used to configure the loss compensator according to the attribute information of the input signal and to control the clock control unit to output a reference clock signal.

[0008] For example, the loss compensator includes a signal compensation unit, a clock data recovery unit, and a transmission unit connected in sequence; the signal compensation unit is used to connect to a sensor, receive and compensate the input signal; the clock data recovery unit is connected to a clock control unit, and extracts clock information from the compensated input signal based on a reference clock signal provided by the clock control unit, and resamples the compensated input signal using the clock information to obtain a recovered signal; the transmission unit is used to connect to a signal receiver, perform signal integrity processing on the recovered signal to obtain and output a regenerated signal to the signal receiver; the controller is connected to the signal compensation unit and the clock data recovery unit respectively, and is used to configure the signal compensation unit and the clock data recovery unit.

[0009] For example, the clock data recovery unit is directly connected to the sending unit; the sending unit includes a pre-emphasis module for transmitting the previous cursor and a pre-emphasis module for transmitting the next cursor, and a sending driver module connected in sequence.

[0010] For example, the clock data recovery unit provides the extracted clock information to the clock control unit, wherein the clock control unit reconstructs the reference clock signal based on the extracted clock information.

[0011] For example, the clock control unit includes a fractional-division phase-locked loop circuit.

[0012] For example, the controller is connected to the loss compensator and the clock control unit via a serial peripheral interface.

[0013] For example, the loss compensator is implemented using a kernel cell in a field-programmable gate array.

[0014] According to another aspect of the present invention, an electronic device is provided, comprising a device for signal transmission, a sensor, and a signal receiver as described above; the sensor is connected to the input terminal of the device for signal transmission, and the output terminal of the device for signal transmission is connected to the signal receiver.

[0015] For example, the controller is also connected to a sensor to configure the transmission rate of the input signal.

[0016] For example, the electronic device also includes a signal conversion module connected to both the sensor and the loss compensator, for converting the format of the input signal from the sensor and sending it to the loss compensator.

[0017] For example, the electronic device is an endoscope.

[0018] The aforementioned signal transmission device includes a loss compensator, a clock control unit for providing a reference clock signal to the loss compensator, and a controller for controlling both. Therefore, the device can effectively compensate for signal loss transmitted via the loss compensator and is suitable for input signals with various transmission rates.

[0019] This utility model description introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0020] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. In the drawings,

[0022] Figure 1 A schematic block diagram of a device for signal transmission in a usage state according to an embodiment of this application is shown;

[0023] Figure 2 A schematic block diagram of a device for signal transmission in a usage state according to another embodiment of this application is shown;

[0024] Figure 3 A schematic block diagram of a device for signal transmission in a usage state according to another embodiment of this application is shown;

[0025] Figure 4 A schematic block diagram of a device for signal transmission in a usage state according to another embodiment of this application is shown;

[0026] Figure 5 A schematic block diagram of an electronic device according to an embodiment of this application is shown;

[0027] Figure 6 A schematic block diagram of an electronic device according to another embodiment of this application is shown;

[0028] Figure 7 A schematic block diagram of an electronic device according to another embodiment of this application is shown.

[0029] The above figures include the following reference numerals:

[0030] 100. Device for signal transmission; 200. Sensor; 300. Signal receiver; 110. Controller; 120. Loss compensator; 130. Clock control unit; 121. Signal compensation unit; 122. Clock data recovery unit; 123. Transmitting unit; 123a. Pre-emphasis module for front and back cursor transmission; 123b. Transmitting drive module. Detailed Implementation

[0031] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0032] To at least address the aforementioned technical problems, this invention provides a device for signal transmission. This device can compensate for transmission losses of signals at various transmission rates, thereby improving signal quality. For example, this device can be used to connect a sensor and a signal receiver, compensating for signal losses transmitted between them via a transmission cable. The following is a detailed description of an embodiment of the device for signal transmission according to the present invention, with reference to the accompanying drawings.

[0033] Figure 1 A schematic block diagram of a signal transmission device 100 in use according to an embodiment of this application is shown. The device 100 can be applied to electronic devices that require signal compensation, such as medical devices, environmental monitoring devices, industrial monitoring devices, and life detection devices. When using the device 100, it connects a sensor 200 of an electronic device to a signal receiver 300. Signals can be transmitted from the sensor 200 to the signal receiver 300 at a specific frequency via transmission cables, optical fibers, or other means. The sensor 200 may include image sensors, temperature sensors, position sensors, and vibration sensors. For example, taking an image sensor from an endoscope as an example, to facilitate the sensor 200 entering the body of the object being tested to collect image signals, the sensor 200 can be connected to the device 100 via a transmission link consisting of a 4-meter-long transmission cable and corresponding connectors. The diameter of the transmission cable can be 38 AWG. The image signal loss on the transmission link is approximately 20 dB. The signal receiver 300 can be any device used for receiving signals; for example, it can be the main unit of an endoscope. Device 100 can be independent of sensor 200 and signal receiver 300, or device 100 can be integrated inside signal receiver 300.

[0034] like Figure 1As shown, the device 100 for signal transmission includes a controller 110, a loss compensator 120, and a clock control unit 130.

[0035] The clock control unit 130 is connected to the loss compensator 120 and provides a reference clock signal to the loss compensator 120. The clock control unit 130 can be implemented using a phase-locked loop circuit. The loss compensator 120 connects the sensor 200 and the signal receiver 300, compensates for the input signal from the sensor 200 based on the reference clock signal, performs clock recovery processing to obtain a regenerated signal, and outputs the regenerated signal to the signal receiver 300.

[0036] The input terminal of the loss compensator 120 can be connected to the sensor 200 via a transmission link consisting of transmission cables and connectors. The input signal received by the loss compensator 120 is attenuated compared to the original signal sent by the sensor 200. For example, the input signal may experience attenuation, distortion, or clock jitter compared to the original signal. The input signal can be a non-return-to-zero (NRZ) signal.

[0037] The transmission rate of the input signal to the loss compensator 120 can be different, and the reference clock signal required for the operation of the loss compensator 120 can also be different. In other words, the transmission rate of the input signal can correspond to the frequency of the reference clock signal required for the operation of the loss compensator 120; that is, different transmission rates correspond to different reference clock signals. The loss compensator 120 can operate based on the reference clock signal provided by the clock control unit 130. The clock control unit 130 can be controlled by the controller 110 to output a reference clock signal suitable for the operation of the loss compensator 120.

[0038] The loss compensator 120 can resample and retime the input signal based on a reference clock signal. The loss compensator 120 can first compensate the received input signal, for example, by using an equalizer to equalize the input signal to obtain a compensated input signal. The loss compensator 120 can perform clock recovery processing on the compensated input signal based on the reference clock signal. The loss compensator 120 may include a gigabyte transceiver.

[0039] Exemplarily, the loss compensator 120 can generate a first clock signal with a transmission rate close to that of the compensated input signal based on a reference clock signal. The frequency of the first clock signal can be a multiple of the frequency of the reference clock signal. Optionally, the reference clock signal can have the same frequency as the first clock signal. The loss compensator 120 can use this first clock signal to track the phase change of the compensated input signal to extract complete, jitter-free clock information of the compensated input signal. The clock information extracted by the loss compensator 120 from the compensated input signal is closer to the original clock information of the original signal sent by the sensor 200. Based on the extracted clock information, clock recovery processing is performed on the compensated input signal to obtain a regenerated signal. Specifically, the loss compensator 120 can sample the compensated input signal based on the clock information to obtain the regenerated signal. It is understood that the loss compensator 120 can use any existing or future developed technology to compensate and recover its input signal based on the reference clock signal. The embodiments of this application do not focus on improving the signal processing method, nor are they limited thereto. The output of the loss compensator 120 can be connected to the signal receiver 300. The loss compensator 120 can send the obtained regenerated signal to the signal receiver 300.

[0040] For example, the loss compensator 120 is implemented using a core cell in a field-programmable gate array (FPGA). A FPGA is a semiconductor device that can be reprogrammed after manufacturing to implement logic functions. The core cell in a FPGA is programmable and can be configured according to user needs. The loss compensator 120 can be implemented using a gigabit transceiver core in a FPGA.

[0041] In the above technical solution, the loss compensator 120 is implemented using the core unit of a field-programmable gate array (FPGA). Therefore, the loss compensator 120 can be programmed as needed to meet different application requirements. Furthermore, this FPGA can achieve multi-module integration, thereby reducing the number of devices in the signal transmission device 100 and lowering the failure rate of multi-chip interconnections.

[0042] Alternatively, the loss compensator 120 can also be implemented using a serializer / deserializer (SerDes) chip, an application-specific integrated circuit, etc.

[0043] The controller 110 is connected to the loss compensator 120 and the clock control unit 130 respectively. It is used to configure the loss compensator 120 according to the attribute information of the input signal of the loss compensator 120, and to control the clock control unit 130 to output a reference clock signal. The controller 110 can be implemented using a microcontroller unit (MCU).

[0044] Controller 110 can be connected to the control channel of loss compensator 120. Controller 110 can acquire attribute information of the input signal received by loss compensator 120, such as through an input device connected to controller 110. The attribute information of the input signal may include information about the transmission rate, transmission protocol, etc. Controller 110 can also configure loss compensator 120 based on the attribute information of the input signal. For example, for input signals with different transmission rates, the parameters related to compensation and clock recovery processing by loss compensator 120 are different. The rate parameters, loop bandwidth, and other related parameters of loss compensator 120 can be configured according to the transmission rate of the input signal.

[0045] The controller 110 can also be connected to the control channel of the clock control unit 130. Based on the attribute information of the input signal of the loss compensator 120, the controller 110 can control the clock control unit 130 to output a clock signal of a specific frequency as a reference clock signal via the control channel of the clock control unit 130. The controller 110 can determine the frequency of the reference clock signal output by the clock control unit 130 based on the transmission rate of the input signal of the loss compensator 120. The clock control unit 130 may have a crystal oscillator to provide a stable clock source. The clock control unit 130 can output the reference clock signal based on this clock source and a control signal received from the controller 110, wherein the control signal includes information about the frequency of the reference clock signal. Since the clock information of the input signal of the loss compensator 120 is inaccurate and unstable, the loss compensator 120 can operate according to the reference clock signal to perform clock recovery processing on the input signal. Exemplarily, the controller 110 is connected to both the loss compensator 120 and the clock control unit 130 via a serial peripheral interface. The Serial Peripheral Interface (SPI) is a synchronous peripheral interface that enables the controller 110 to communicate serially with the loss compensator 120 and the clock control unit 130 to exchange information.

[0046] In the above technical solution, the controller 110 is connected to the loss compensator 120 and the clock control unit 130 via a serial peripheral interface. Therefore, the internal control of the signal transmission device 100 is more timely, and the signal transmission speed is faster.

[0047] Alternatively, the aforementioned controller 110, loss compensator 120, and clock control unit 130 can also be connected via an integrated circuit bus (I0). 2 C) Connections such as interfaces and fiber optic coupling interfaces.

[0048] The aforementioned signal transmission device 100 includes a loss compensator 120, a clock control unit 130 for providing a reference clock signal to the loss compensator 120, and a controller 110 for controlling both. Thus, the device 100 can effectively compensate for signal loss transmitted via the loss compensator 120 and is suitable for input signals with various transmission rates.

[0049] Figure 2 A schematic block diagram of a signal transmission apparatus 100 in use according to another embodiment of this application is shown. Figure 2 As shown, the loss compensator 120 includes a signal compensation unit 121, a clock data recovery unit 122, and a transmission unit 123 connected in sequence. The compensation unit 121, the clock data recovery unit 122, and the transmission unit 123 can be connected directly or indirectly in sequence.

[0050] The signal compensation unit 121 is used to connect to the sensor 200, receive and compensate its input signal. The sensor 200 can be connected to the signal compensation unit 121 via a transmission cable and connector to send an input signal to the signal compensation unit 121. The signal compensation unit 121 can be implemented using a continuous-time linear equalizer (CTLE), a decision feedback equalizer (DFE), or the like. Using a continuous-time linear equalizer or a decision feedback equalizer as the signal compensation unit 121 can equalize the noise in the input signal, reduce the noise in the input signal, and improve the quality of the input signal.

[0051] The Clock Data Recovery (CDR) unit 122 is connected to both the signal compensation unit 121 and the clock control unit 130. Based on a reference clock signal provided by the clock control unit 130, the clock data recovery unit 122 extracts clock information from the compensated input signal and resamples the compensated input signal using this clock information to obtain a recovered signal. The input terminal of the clock data recovery unit 122 can be connected to the output terminal of the signal compensation unit 121. The clock data recovery unit 122 can receive the compensated input signal from the signal compensation unit 121. Based on the reference clock signal provided by the clock control unit 130, the clock data recovery unit 122 can perform phase detection on the compensated input signal to extract its clock information. It can then synchronously sample the compensated input signal based on this clock information to obtain the recovered signal.

[0052] The transmitting unit 123 is connected to the signal receiving end 300 to perform signal integrity processing on the recovered signal from the clock data recovery unit 122, thereby obtaining and outputting a regenerated signal to the signal receiving end 300. The receiving end of the transmitting unit 123 can be connected to the output end of the clock data recovery unit 122. The transmitting unit 123 can receive the recovered signal sent by the clock data recovery unit 122. The transmitting unit 123 can convert the recovered signal into a corresponding differential signal to drive the transmission line between the transmitting unit 123 and the signal receiving end 300 to transmit the regenerated signal to the signal receiving end 300. The above-mentioned signal processing of the transmitting unit 123 ensures the accuracy of the waveform, timing, and logic state of the regenerated signal during transmission, avoiding distortion due to the physical characteristics of the transmission medium or external interference.

[0053] The controller 110 is connected to the signal compensation unit 121 and the clock data recovery unit 122 respectively, and is used to configure the signal compensation unit 121 and the clock data recovery unit 122.

[0054] The controller 110 can configure the rate parameters, bandwidth parameters, etc. of the signal compensation unit 121 and the clock data recovery unit 122 according to the attribute information of the input signal of the signal compensation unit 121. The attribute information of the input signal may include, for example, the transmission rate of the input signal and the signal amplitude. The signal compensation unit 121 and the clock data recovery unit 122 can operate independently according to the rate parameters, bandwidth parameters, etc. sent by the controller 110.

[0055] In the above technical solution, the loss compensator 120 includes a signal compensation unit 121, a clock data recovery unit 122, and a transmission unit 123 connected in sequence. The signal compensation unit 121, the clock data recovery unit 122, and the transmission unit 123 can ensure that the signal from the sensor 200 is transmitted to the signal receiving end 300 more accurately.

[0056] For example, Figure 3 A schematic block diagram of a signal transmission apparatus 100 in use according to another embodiment of this application is shown. Figure 3As shown, the clock data recovery unit 122 provides the extracted clock information to the clock control unit 130. The clock control unit 130 reconstructs a reference clock signal based on the extracted clock information. The clock data recovery unit 122 can send the extracted clock signal to the clock control unit 130, and the clock control unit 130 can send a reference clock signal to the clock data recovery unit 122. In some embodiments, the clock data recovery unit 122 can be connected to the clock control unit 130 via a first line, which is used to transmit the reference clock signal from the clock control unit 130 to the clock data recovery unit 122. The clock data recovery unit 122 can also be connected to the clock control unit 130 via a second line, which is used to provide the extracted clock information to the clock control unit 130. In other words, the clock data recovery unit 122 and the clock control unit 130 can be connected via two independent lines. In other embodiments, the clock data recovery unit 122 and the clock control unit 130 can be connected by a bidirectional transmission line. The clock data recovery unit 122 can send the extracted clock information to the clock control unit 130 through the bidirectional transmission line, and the clock control unit 130 can also send a reference clock signal to the clock data recovery unit 122 through the bidirectional transmission line.

[0057] The input signal, compensated by the signal compensation unit 121, lacks phase synchronization, manifesting as timing jitter on its rising / falling edges. When the clock data recovery unit 122 extracts clock information from this input signal, the clock control unit 130 can provide a reference clock signal to ensure the smooth operation of the clock data recovery unit 122. The clock information extracted by the clock data recovery unit 122 has low phase noise characteristics, with its root mean square jitter less than the jitter threshold, for example, 0.1 unit interval (UI). After extracting the clock information, the clock data recovery unit 122 can send an electrical signal to the controller 110 indicating that the clock information has been extracted. Upon receiving this electrical signal, the controller 110 can control the clock control unit 130 to reconstruct the reference clock signal based on the clock signal extracted by the clock data recovery unit 122. For example, the frequency of the reference clock signal can be determined based on the frequency of the extracted clock information, and a reference clock signal can be generated. The clock control unit 130 can then provide this reference clock signal to the clock data recovery unit 122. The clock data recovery unit 122 can no longer resample the compensated input signal based on clock information, but instead resample the compensated input signal based on a reference clock signal.

[0058] In some embodiments, the clock data recovery unit 122 may employ an automatic locking mode. In this automatic locking mode, the clock data recovery unit 122 may first lock onto a reference clock signal and extract clock information from the input signal based on the reference clock signal. After extracting clock information with an deviation within a set range, it switches to a data-locked mode to resample the compensated input signal using the clock information, thereby obtaining a recovered signal. When switching to the data-locked mode, the clock data recovery unit 122 may send an electrical signal to the controller 110, which may control the clock control unit 130 to reconstruct the reference clock signal based on the clock information extracted by the clock data recovery unit 122. Subsequently, the clock data recovery unit 122 is also used to resample the compensated input signal based on the reconstructed reference clock signal.

[0059] In the above technical solution, the clock data recovery unit 122 provides the extracted clock information to the clock control unit 130 so that it can generate a corresponding reference clock signal. Therefore, the clock control unit 130 can provide a reference clock signal to the clock data recovery unit 122 before it obtains clock information, and can provide a corresponding reference clock signal to the clock data recovery unit 122 after it has extracted clock information. Thus, the clock data recovery unit 122 can resample the input signal based on different clock information, improving the stability of the recovered signal and thereby improving the quality of the regenerated signal.

[0060] For example, the clock control unit 130 includes a fractional-order frequency-locked loop (PLL) circuit. A fractional-order PLL circuit is a PLL structure that uses a fractional divider for frequency synthesis. In a fractional divider, the division ratio can be both integer and fractional, thus enabling aperiodic frequency synthesis. The fractional-order PLL circuit can more precisely control the output of a reference clock signal of arbitrary frequency and effectively reduce spurious components.

[0061] In the above technical solution, the clock control unit 130 includes a fractional-order frequency-locked loop circuit. This provides the loss compensator 120 with a more accurate reference clock signal of any frequency.

[0062] For example, Figure 4A schematic block diagram of a signal transmission apparatus 100 in use according to another embodiment of this application is shown. A clock data recovery unit 122 is directly connected to a transmitting unit 123. The transmitting unit 123 includes a pre-emphasis module 123a for forward and backward cursor transmission and a transmitting drive module 123b connected sequentially. The transmitting unit 123 can be implemented using a configurable drive circuit. The input terminal of the pre-emphasis module 123a for forward and backward cursor transmission can be directly connected to the output terminal of the clock data recovery unit 122 to receive the recovery signal transmitted from the clock data recovery unit 122. The pre-emphasis module 123a for forward and backward cursor transmission can be used to pre-emphasize the recovery signal, boosting the high-frequency components of the transition edges of the recovery signal, and pre-canceling the high-frequency attenuation of the transmission line to obtain a regenerated signal. The output of the pre-emphasis module 123a for transmitting the front and back cursors is connected to the input of the transmission driver module 123b. The transmission driver module 123b can drive the transmission line between the transmission driver module 123b and the signal receiver 300 to send the regenerated signal to the signal receiver 300.

[0063] It is understood that the loss compensator 120 may also include units related to signal encoding methods and signal protocols, such as 8B / 10B decoding units, polarity control units, etc. If the input signal is processed by these units, the input signal needs to follow a specific encoding method and signal protocol. Units related to signal encoding methods and signal protocols can be configured to bypass, meaning the input signal does not pass through these units. For example, the 8B / 10B decoding unit, polarity control unit, etc., in the loss compensator 120 can be configured as bypass mode. In other words, the input signal is only processed by the sequentially connected signal compensation unit 121, clock data recovery unit 122, and transmission unit 123, which are independent of the signal encoding method and signal protocol, to obtain the regenerated signal.

[0064] In the above technical solution, the clock data recovery unit 122 is directly connected to the pre-emphasis module 123a for transmitting the preceding and following cursors, and then the regenerated signal is sent to the signal receiving end 300 via the transmission drive module 123b. Thus, the signal can be transmitted to the signal receiving end 300 without passing through any unit related to the signal encoding method and signal protocol. Based on this, the device 100 for signal transmission can compensate for the loss of input signals with any signal encoding method and signal protocol, improving the applicability of the device 100.

[0065] For example, Figure 5 A schematic block diagram of an electronic device 400 according to one embodiment of this application is shown. Figure 5As shown, the electronic device 400 includes a signal transmission device 100, a sensor 200, and a signal receiving terminal 300. The sensor 200 is connected to the input terminal of the signal transmission device 100, and the output terminal of the signal transmission device 100 is connected to the signal receiving terminal 300.

[0066] Those skilled in the art can understand the structure, connection relationship and beneficial effects of the various components in the above-described electronic device 400 by reading the relevant description of the device 100 for signal transmission. For the sake of brevity, they will not be described in detail here.

[0067] For example, Figure 6 A schematic block diagram of an electronic device 400 according to another embodiment of this application is shown. Figure 6 As shown, the controller 110 is also connected to the sensor 200 to configure the transmission rate of the sensor 200's output signal (i.e., the input signal of the loss compensator 120). The controller 110 can be connected to the sensor 200 via an integrated circuit bus. Optionally, the connection line between the controller 110 and the sensor 200 can be integrated with the connection line between the sensor 200 and the loss compensator 120. For example, the integrated circuit bus connecting the controller 110 and the sensor 200 can be integrated with the transmission cable connecting the sensor 200 and the loss compensator 120 to obtain an integrated cable. The sensor 200 is then connected to both the controller 110 and the loss compensator 120 via the integrated cable. For example, the sensor 200 can output signals with multiple selectable transmission rates. For example, the sensor 200 can support signal transmission rates of 1.485Gbps, 2.16Gbps, or 2.5Gbps. The controller 110 can select one of the transmission rates supported by the sensor 200 as the signal transmission rate according to user needs and settings. Optionally, the controller 110 can also configure the sensor 200 to transmit input signals at any transmission rate according to user needs and settings. The controller 110 can also configure the loss compensator 120 according to the configured signal transmission rate and control the clock control unit 130 to output a suitable reference clock signal.

[0068] In the above technical solution, the controller 110 is also connected to the sensor 200 to configure the signal transmission rate. Therefore, a suitable transmission rate can be selected as needed, improving the user experience.

[0069] For example, Figure 7 A schematic block diagram of an electronic device 400 according to another embodiment of this application is shown. Figure 7As shown, the electronic device 400 also includes a signal conversion module 410. The signal conversion module 410 is connected to both the sensor 200 and the loss compensator 120, and is used to convert the format of the input signal from the sensor 200 and send it to the loss compensator 120. For example, the sensor 200 may be equipped with a Mobile Industry Processor Interface (MIPI), and the loss compensator 120 supports a serializer / deserializer (SERDES) interface. The format of the signal sent from the sensor 200 is incompatible with that of the loss compensator 120. The sensor 200 can send the signal to the signal conversion module 410, which converts the signal format to a format that meets the requirements of the loss compensator 120 before sending the converted signal to the loss compensator 120.

[0070] In the above technical solution, a signal conversion module 410 is provided between the sensor 200 and the loss compensator 120. Therefore, the signal conversion module 410 enables the loss compensator 120 to be compatible with various types of sensors 200.

[0071] For example, the electronic device is an endoscope. The endoscope may include a sensor 200 and a device 100 for signal transmission. Taking a medical endoscope as an example, its sensor 200 can enter the body through natural openings or small surgical incisions. The image signal acquired by the sensor 200 after entering the body needs to be transmitted to the main unit of the endoscope via a transmission cable of a certain length. Image signal loss occurs during transmission. The image signal from the sensor 200 can be first input to the device 100 for signal transmission, where it processes the input signal, compensates for loss, improves signal quality and integrity, and obtains a regenerated signal. The device 100 for signal transmission then sends the regenerated signal to the main unit of the endoscope. This device 100 for signal transmission supports a wide range of input signal transmission rates; for example, the device 100 can support transmission rates from 1 to 12.5 Gbps. Therefore, the transmission rate of the sensor 200 can be set more flexibly as needed.

[0072] Understandably, in addition to medical endoscopes, endoscopes also include industrial endoscopes for purposes such as pipeline inspection and life detection.

[0073] Those skilled in the art can understand the structure, connection relationship and beneficial effects of the various components in the above-described endoscope device by reading the relevant description of the device 100 for signal transmission. For the sake of brevity, they will not be described in detail here.

[0074] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0075] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof; when the terms "connected" or "interconnected" are used, they are intended to include both direct and indirect connections unless "direct connection" is explicitly stated. It is understood that an indirect connection refers to the presence of other components between the connected components.

[0076] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0077] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for signal transmission, characterized in that, include: Controller, loss compensator, and clock control unit; The clock control unit is connected to the loss compensator and is used to provide a reference clock signal to the loss compensator; The loss compensator is used to connect the sensor and the signal receiver, and to compensate the input signal from the sensor based on the reference clock signal and perform clock recovery processing to obtain a regenerated signal and output the regenerated signal to the signal receiver. The controller is connected to the loss compensator and the clock control unit respectively, and is used to configure the loss compensator according to the attribute information of the input signal, and control the clock control unit to output the reference clock signal.

2. The device for signal transmission according to claim 1, characterized in that, The loss compensator includes a signal compensation unit, a clock data recovery unit, and a transmission unit connected in sequence. The signal compensation unit is used to connect to the sensor, receive and compensate the input signal; The clock data recovery unit is connected to the clock control unit. The clock data recovery unit extracts clock information from the compensated input signal based on the reference clock signal provided by the clock control unit, and uses the clock information to resample the compensated input signal to obtain the recovered signal. The transmitting unit is used to connect to the signal receiving end, perform signal integrity processing on the recovered signal, and obtain and output the regenerated signal to the signal receiving end; The controller is connected to the signal compensation unit and the clock data recovery unit respectively, and is used to configure the signal compensation unit and the clock data recovery unit.

3. The device for signal transmission according to claim 2, characterized in that, The clock data recovery unit is directly connected to the sending unit; The sending unit includes a pre-emphasis module for transmitting the front cursor and a pre-emphasis module for transmitting the back cursor, and a sending driving module connected in sequence.

4. The apparatus for signal transmission according to claim 2, characterized in that, The clock data recovery unit provides the extracted clock information to the clock control unit, wherein the clock control unit reconstructs the reference clock signal based on the extracted clock information.

5. The apparatus for signal transmission according to claim 1, characterized in that, The clock control unit includes a fractional frequency division phase-locked loop circuit.

6. The apparatus for signal transmission according to claim 1, characterized in that... The controller, loss compensator, and clock control unit are all connected via a serial peripheral interface.

7. The apparatus for signal transmission according to claim 1, characterized in that, The loss compensator is implemented using a core unit in a field-programmable gate array.

8. An electronic device, characterized in that, Includes the device for signal transmission as described in any one of claims 1 to 7, the sensor, and the signal receiving end; The sensor is connected to the input terminal of the device for signal transmission, and the output terminal of the device for signal transmission is connected to the signal receiving terminal.

9. The electronic device according to claim 8, characterized in that, The controller is also connected to the sensor to configure the transmission rate of the input signal.

10. The electronic device according to claim 8, characterized in that, The electronic device further includes a signal conversion module, which is connected to the sensor and the loss compensator respectively, and is used to convert the format of the input signal from the sensor and send it to the loss compensator.

11. The electronic device according to claim 8, characterized in that, The electronic device is an endoscope.

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