CN115237845A

CN115237845A - Signal processing method, signal processing device and mobile equipment

Info

Publication number: CN115237845A
Application number: CN202210901720.XA
Authority: CN
Inventors: 王勇
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-10-25

Abstract

The application discloses a signal processing method, a signal processing device and mobile equipment, and belongs to the technical field of electronics. The method comprises the steps of receiving a first signal sent by a first integrated circuit unit, and determining the minimum input voltage when a target sequence is read from the first signal, wherein the first signal is a signal of a Mobile Industry Processor Interface (MIPI); transmitting a second signal to the second integrated circuit unit based on the target sequence and detecting the amplitude of the second signal received by the second integrated circuit unit in the case of the minimum input voltage; determining a minimum output voltage according to the amplitude of the second signal received by the second integrated circuit unit; and under the condition of the minimum input voltage and the minimum output voltage, the MIPI signal sent by the first integrated circuit unit is received, and the MIPI signal is sent to the second integrated circuit unit again.

Description

Signal processing method, signal processing device and mobile equipment

Technical Field

The application belongs to the technical field of electronics, and particularly relates to a signal processing method, a signal processing device and mobile equipment.

Background

A Mobile Industry Processor Interface (MIPI) is an open standard established for a Mobile application Processor, and aims to standardize interfaces inside a Mobile terminal, such as a camera, a display screen, a radio frequency/baseband and the like, so that the complexity of design is reduced, and the flexibility of design is increased.

Mobile terminal peripherals are increasingly adopting MIPI interfaces, such as D-PHY adopted by mobile phone screens and cameras. With the increasing abundance of application scenes of the MIPI, the peripheral wiring is lengthened, the loss on a path is overlarge, and when an MIPI signal reaches the peripheral, the signal amplitude is very small, the requirement of the peripheral cannot be met, so that the peripheral cannot normally work.

Disclosure of Invention

An object of the embodiments of the present application is to provide a signal processing method, a signal processing apparatus, and a mobile device, which can solve the problem of MIPI signal attenuation.

In a first aspect, an embodiment of the present application provides a signal processing method, where the method includes: receiving a first signal sent by a first integrated circuit unit, and determining a minimum input voltage when a target sequence is read from the first signal, wherein the first signal is a signal of a Mobile Industry Processor Interface (MIPI); transmitting a second signal to a second integrated circuit unit based on the target sequence and detecting an amplitude of the second signal received by the second integrated circuit unit in case of the minimum input voltage; determining a minimum output voltage according to the amplitude of the second signal received by the second integrated circuit unit; and under the condition of the minimum input voltage and the minimum output voltage, receiving the MIPI signal transmitted by the first integrated circuit unit, and retransmitting the MIPI signal to the second integrated circuit unit.

In a second aspect, an embodiment of the present application provides a signal processing apparatus, including: the first receiving module is used for receiving a first signal sent by a first integrated circuit unit and determining a minimum input voltage when a target sequence is read from the first signal, wherein the first signal is a signal of a Mobile Industry Processor Interface (MIPI); a first transmitting module, configured to transmit a second signal to a second integrated circuit unit based on the target sequence and detect an amplitude of the second signal received by the second integrated circuit unit under the condition of the minimum input voltage; the first processing module is used for determining the minimum output voltage according to the amplitude of the second signal received by the second integrated circuit unit; and the second processing module is used for receiving the MIPI signals sent by the first integrated circuit unit under the condition of the minimum input voltage and the minimum output voltage and sending the MIPI signals to the second integrated circuit unit.

In a third aspect, an embodiment of the present application provides a mobile device including a first integrated circuit unit having a MIPI interface, where the MIPI interface interfaces with a first MIPI interface of an enhanced circuit unit; the enhanced circuit unit also comprises a second MIPI interface, and the second MIPI interface is connected with the MIPI interface of the second integrated circuit unit; the enhancement circuit unit is for implementing the signal processing method according to the first aspect.

In a fourth aspect, the present invention provides a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the signal processing method according to the first aspect.

In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the signal processing method according to the first aspect.

In a sixth aspect, the present application provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the signal processing method according to the first aspect.

In the embodiment of the application, a circuit unit is added between the first integrated circuit unit and the second integrated circuit unit, and correct MIPI signals sent by the first integrated circuit unit can be received by adjusting the input voltage of the circuit unit. And the amplitude of the MIPI signal transmitted to the second integrated circuit unit is enhanced by adjusting the output voltage, so that the input voltage and the output voltage can be respectively matched with the first integrated circuit unit and the second integrated circuit unit, correct transmission of the signal can be guaranteed, and the effectiveness of signal transmission is improved. In addition, the amplitude of the signal can be improved by determining the minimum output voltage, loss attenuation of the MIPI signal during transmission between the first integrated circuit unit and the second integrated circuit unit is avoided, and normal work of the second integrated circuit unit can be guaranteed.

Drawings

Fig. 1 is a system framework diagram of a signal processing method provided in an embodiment of the present application;

fig. 2 is a schematic view of a scene of a signal processing method provided in an embodiment of the present application;

fig. 3 is a flowchart of a signal processing method provided in an embodiment of the present application;

fig. 4 is a second flowchart of a signal processing method according to an embodiment of the present application;

fig. 5 is a third flowchart of a signal processing method according to an embodiment of the present application;

FIG. 6 is a schematic circuit diagram illustrating a signal processing method according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a signal processing apparatus according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a mobile device provided in an embodiment of the present application;

fig. 9 is a second schematic structural diagram of a mobile device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The signal processing method, the signal processing apparatus and the mobile device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

The embodiment of the present application first provides a signal processing method, where the signal processing method may be applied to mobile devices that can adopt MIPI interface communication, such as a mobile phone, a tablet computer, a notebook computer, a wearable smart device (e.g., a smart watch), an Augmented Reality (AR)/Virtual Reality (VR) device, and a vehicle-mounted device, and the embodiment of the present application does not limit the present application to this.

Circuit elements in the mobile device may communicate with peripherals using MIPI interfaces. Two Circuit elements communicating through the MIPI interface may be referred to as a first Integrated Circuit (IC) unit and a second IC unit, respectively. As shown in fig. 1 (a), a mobile device 100 includes a first integrated circuit unit 10 and a second integrated circuit unit 20 therein. The first integrated circuit unit 10 and the second integrated circuit unit 20 each have at least one MIPI interface, which is interface 101 and interface 201. The interface 101 on the first integrated circuit unit 10 is connected with the interface 201 of the second integrated circuit unit 20, and data transmission and reception are realized through the connected MIPI interface.

For example, the first integrated circuit unit or the second integrated circuit unit that performs communication using the MIPI interface may be a Central Processing Unit (CPU), an independent display chip, an image processing chip, a display screen, and the like, which is not limited in this embodiment. In a practical application scenario, as shown in fig. 2, the mobile device 100 may specifically include a processor (CPU) 21, a camera 22, a camera 23, a separate display card 24, and a display screen 25. The independent display card 24 is an IC chip added to the mobile device for image enhancement or frame insertion, and is referred to as an independent display IC for short. Data exchange can be performed between the CPU 21 and the

cameras

22 and 23 through a CSI Interface (CSI) for the cameras in the MIPI; data exchange with the independent Display IC 24 and the Display screen 25 may be performed through a Display Serial Interface (DSI) used for a Display module in the MIPI. The independent display IC 24 can be used for image enhancement and frame insertion, and improves the dynamic range of video quality, so that the quality of the video is from original 60fps frame insertion to 120fps, and the effects of night scene shooting, clearer video recording and the like are achieved. For example, the first ic unit may be the CPU 21, the second ic unit may be the display 25, and the CPU 21 may send an instruction through the MIPI interface connected to the display 25 to communicate with the display 25, so as to control the display.

When the mobile device is to be turned on, the CPU 21 may send a signal to the independent display IC 24 through the MIPI interface, and the independent display IC 24 may trigger the display screen 25 to be turned on. After the MIPI signal sent from the CPU 21 is attenuated by the loss of the routing and unique display IC 24, if the amplitude is smaller than the amplitude standard required by the display screen, the display screen 25 cannot normally display the MIPI signal.

In the embodiment of the present application, one integrated circuit unit/chip may be added to the mobile device, and the integrated circuit unit may be referred to as an enhanced circuit unit, an enhanced IC, an enhanced chip, and the like, but the embodiment is not limited thereto. As shown in fig. 1 (b), the mobile device 200 may include a first integrated circuit unit 10, a second integrated circuit unit 20, and an enhancement circuit unit 30, and the enhancement circuit unit 30 may perform the signal processing method in the embodiment of the present application. For example, an enhancement circuit unit 30 may be added between the independent display IC 24 and the display screen 25 to enhance the MIPI signal between the independent display IC and the display screen, so as to avoid the problem that the display screen cannot normally display due to signal attenuation.

Based on this, the mobile device provided in the embodiment of the present application may include at least three integrated circuit units therein, as shown in fig. 1 (b). The first integrated circuit unit 10 and the second integrated circuit unit 20 each include at least one MIPI interface, and are respectively connected to different MIPI interfaces of the enhanced circuit unit 30 (hereinafter referred to as enhanced IC) through the MIPI interfaces. The enhanced IC includes at least two MIPI interfaces, such as interface 301 and interface 302. The interface 301 is connected to the interface 101 of the first integrated circuit unit 10, and the interface 302 is connected to the interface 202 of the second integrated circuit unit 20. The enhancement circuit unit 30 can implement the signal processing method provided by the present embodiment when operating.

Fig. 3 shows a flowchart of a signal processing method provided by an embodiment of the present application. As shown in fig. 3, the signal processing method includes the steps of:

step 10: the method comprises the steps of receiving a first signal sent by a first integrated circuit unit, and determining the minimum input voltage when a target sequence is read from the first signal, wherein the first signal is a signal of a Mobile Industry Processor Interface (MIPI).

The first integrated circuit unit may be, for example, a CPU, a stand-alone IC, or the like. The first integrated circuit unit comprises a MIPI interface, the MIPI interface is connected with the enhanced IC, and a first signal sent by the first integrated circuit unit is received by the enhanced IC through the MIPI interface. The first signal is a signal generated in a specific sequence for calibrating a voltage of the boost IC. The specific sequence is used as a target sequence, such as 010101, may be set in advance, and when the second integrated circuit unit needs to be triggered, the first integrated circuit unit may generate a corresponding electrical signal, that is, a first signal, according to the target sequence, and send out through the MIPI interface.

Illustratively, the first signal may be a signal transmitted by the first integrated circuit unit at a highest frequency in a frequency range of the MIPI. The higher the frequency of the signal, the greater the attenuation, and in the case where the frequency of the first signal is the highest frequency, the minimum input voltage of the boost IC may be determined, thereby ensuring that the boost IC is able to receive any MIPI signal of the first integrated circuit unit.

After receiving the first signal through the MIPI, the enhanced IC reads a sequence of the first signal and then detects whether the read sequence is a target sequence. And if the read sequence is the target sequence, the enhancement IC records the input voltage at the moment as the minimum input voltage. The first integrated circuit unit, the enhancement IC, and the second integrated circuit unit are initialized according to a default configuration, that is, the input voltage and the output voltage of the enhancement IC may be default values, for example, 1V, and the like, which is not limited in this embodiment.

If the correct target sequence cannot be read from the first signal at the default input voltage, the boost IC may increase the input voltage, for example, by 50mV, 100mV, etc., with each increase detecting a sequence of first signals until the correct target sequence can be read. The input voltage at which the target sequence of first signals is read is determined as a minimum input voltage. The input voltage read to the correct sequence of the MIPI signals of the first integrated circuit unit is determined as the minimum input voltage of the enhanced IC, which can ensure that the input voltage can be matched with the MIPI signals of the first integrated circuit unit at the highest voltage, thereby ensuring that the MIPI signals of the first integrated circuit unit can be correctly received subsequently.

For example, the boost IC may obtain the amplitude of the first signal when the first signal is received, and increase the input voltage based on the amplitude of the first signal. For example, the input voltage of the boost IC may be increased by K times the amplitude of the first signal, or may be increased by a certain value, which may be set empirically. After the input voltage of the boost IC has increased on the basis of the amplitude of the first signal, the sequence of the first signal may be detected again, and if after increasing the input voltage the correct target sequence has not yet been read, a step, i.e. the first step, is determined, on the basis of which the increase of the input voltage is continued. The first value may be a value such as 10mV, 20mV, or 30mV, but this embodiment is not limited thereto. The boost IC may cyclically increase the input voltage based on the first step, detect a sequence of the first signal once every time the input voltage is increased until a correct target sequence is read, and use the input voltage at that time as the minimum input voltage of the boost IC.

Fig. 4 shows a flow chart for determining the minimum input voltage. The boost IC may determine the minimum input voltage after receiving the first signal according to the process flow shown in fig. 4. Specifically, in step 31, the amplitude a of the first signal is detected. In step 32, it is determined whether the amplitude a is within a reference voltage range, typically 40mV to 1.2V for MIPI. If the amplitude A is within the MIPI reference voltage range, step 33 is performed. If the amplitude A is not in the reference voltage range of the MIPI, the enhancement IC can ignore the first signal and wait for the next reception. That is, the enhancement IC may determine whether the amplitude a is greater than or equal to 40mV, and if the amplitude a is greater than or equal to 40mV, the first signal conforms to the standards of the MIPI interface. Then, in step 33, the input voltage Vin is increased according to the amplitude a. The input voltage of the boost IC may be increased on the basis of the amplitude a, for example by 100mV, with the increased input voltage Vin = a +100mV. In addition, the input voltage may also be increased in other manners, for example, 10mV, 50mV, etc., based on the amplitude a, which is not limited in this embodiment.

Next, in step 34, it is checked whether the target sequence is read. If the target sequence is not read after increasing the voltage, step 35 is performed; if the target sequence is read, step 36 is executed. In step 36, the input voltage Vin at this time is set to the minimum input voltage. That is, the input voltage of the boost IC needs to be greater than or equal to the minimum input voltage in normal operation. Referring to fig. 4, in step 35, the input voltage is increased, vin = Vin +20mV, and then go to step 34. The first further result is increased based on the present input voltage Vin, i.e. the increased input voltage Vin. The first step may further be 20mV, i.e. the increased input voltage Vin = Vin +20mV. After the input voltage Vin is increased in step 35, the process goes to step 34 to circulate until the target sequence is read. The final input voltage Vin is determined as the minimum input voltage of the boost IC.

Next, step 20: in the case of a minimum input voltage, a second signal is transmitted to the second integrated circuit unit based on the target sequence, and the amplitude of the second signal received by the second integrated circuit unit is detected.

The enhancement IC may regenerate a signal corresponding to the waveform, i.e., a second signal, from the target sequence for transmission to the second integrated circuit unit. The enhanced IC is also connected to the second integrated circuit unit via the MIPI interface, and thus the second signal is also a signal sent via the MIPI interface. A feedback circuit may be disposed between the boost IC and the second integrated circuit unit, and the amplitude of the second signal received by the second integrated circuit unit is detected by the feedback circuit.

Step 30: the minimum output voltage is determined based on the amplitude of the second signal received by the second integrated circuit unit.

The amplitude of the second signal needs to match the standard amplitude of the second integrated circuit cell and cannot be read correctly by the second integrated circuit cell if the amplitude of the second signal is less than the standard amplitude of the second integrated circuit cell. The output voltage of the second ic unit may be a default value, for example, 1V, etc., at power-up initialization. The boosting IC may determine whether the amplitude of the feedback-detected second signal is smaller than a standard amplitude of the second integrated circuit cell, and increase the output voltage in a case where it is determined that the amplitude of the second signal is smaller than the standard amplitude of the second integrated circuit cell. If the amplitude of the second signal is not less than the standard amplitude of the second signal, the present output voltage is determined as the minimum output voltage. The voltage which can be received by the second integrated circuit unit is determined as the minimum output voltage, so that the MIPI signal sent by the enhanced IC can meet the requirement of the second integrated circuit unit, and the second integrated circuit unit is ensured to normally receive the MIPI signal.

Illustratively, the boost IC may step up based on a predetermined step when increasing the output voltage. This step serves as a second step. Specifically, the process of increasing the output voltage is shown in fig. 5, and includes:

step 41: a second signal of the target sequence is generated. The enhancement IC can generate a second signal according to a target sequence under a default output voltage Vout, and the generated second signal is sent out through an MIPI interface between the enhancement IC and the second integrated circuit unit and reaches the second integrated circuit unit through attenuation of routing loss. Step 42: the amplitude C of the second signal of the second integrated circuit unit is acquired by the feedback circuit. Step 43: the difference Z between the amplitude C and the standard amplitude S of the second integrated circuit cell is calculated, i.e. Z = C-S. Step 44: judging whether Z is less than 0; if Z is greater than or equal to 0, executing step 46; if Z is less than 0, step 45 is executed to enter a loop, as shown in FIG. 5. Step 45: adjusting the output voltage, wherein the specific adjusting mode is as follows: vout = Vout + Z × K. And K is the second step, Z multiplied by K is the increasing amplitude of the current output voltage Vout, and Z multiplied by K is increased on the basis of the current output voltage Vout to obtain the adjusted output voltage Vout. Increasing the present output voltage by a factor of the second step may linearly increase the output voltage such that the output voltage is linearly related to the second signal, thereby enhancing the second signal. And then, the process goes to step 41 again to output the second signal at the increased output voltage, and the process loops in turn until the amplitude C of the second signal is greater than or equal to the standard amplitude S in step 44, and the process exits the loop. In step 46, the output voltage Vout is recorded as the minimum output voltage. And when the circulation is finished, the final output voltage is the minimum output voltage. After the minimum output voltage is determined, the output voltage of the boost IC may be set to be greater than or equal to the minimum output voltage, that is, the output voltage of the boost IC under normal operation takes a value in a range greater than or equal to the minimum output voltage.

Step 40: and under the condition of the minimum input voltage and the minimum output voltage, receiving the MIPI signal transmitted by the first integrated circuit unit and transmitting the MIPI signal to the second integrated circuit unit.

The input voltage of the boost IC needs to be above the minimum input voltage and the output voltage needs to be above the minimum output voltage, according to which range the boost IC can be reset and then operated normally. The enhancement IC can receive the MIPI signal of the first integrated circuit unit and send the signal to the second integrated circuit unit after the signal is enhanced, so that normal transmission of the MIPI signal in the first integrated circuit unit and the second integrated circuit unit is guaranteed, and the problem of signal attenuation is avoided.

The signal processing method and the mobile device of the present embodiment will be described below by taking the first integrated circuit unit as an independent IC and the second integrated circuit unit as a screen as an example. Fig. 6 shows a circuit schematic of the mobile device. As shown in fig. 6, the mobile device includes a separate IC 51, an enhanced IC 52, and a display LCM 53. Wherein, enhanced IC 52 includes two sets of MIPI interfaces. The MIPI interface is composed of a set of differential clocks and 1 to 3 sets of differential data, and the number of sets of differential data to be used is determined according to the amount of data to be transmitted. The MIPI interface takes a set of differential data as an example, a set of MIPI interfaces of the enhanced IC, namely, the first MIPI interface, includes a pin a1, a pin a2, a pin a3, and a pin a4, and is connected to pins of the MIPI interface in the exclusive IC 51, respectively. The pins a1 and a2 are a set of differential data. The other group of MIPI interfaces, i.e., the second MIPI interface, includes pins b1, b2, b3, and b4, which are respectively connected to pins of the MIPI interface 531 in the display LCM 53. The pin b1 and the pin b2 are a set of differential data. The MIPI signal is a differential signal, and the amplitude of the signal can be determined from a set of differential data.

Further, the enhancement IC 52 includes a detection circuit 54 and a feedback circuit 55. The detection circuit 54 is connected to a set of differential data pins in the MIPI interface of the standalone IC, and is configured to detect the amplitude of the MIPI signal. The feedback circuit 55 is connected to a set of differential data pins in the MIPI interface of the display screen, and is used for detecting the amplitude of the MIPI signal at the LCM 53 of the display screen.

For example, when the CPU receives an event that a key triggers a screen-on while in standby or power-off, the CPU may send a calibration signal, i.e., a first signal, to the standalone IC 51 at the highest frequency used on the MIPI interface. The exclusive IC 51 sends a first signal to the enhancement IC 52 to be received by the MIPI interface 521 of the enhancement IC 52, while the enhancement IC detects the amplitude of the first signal through the detection circuit 54. A minimum input voltage is determined based on the amplitude of the first signal. The enhancement IC 52 then generates a second signal to be transmitted through the MIPI interface 522 to the LCM 53 via the trace loss (abbreviated as line loss). Meanwhile, the boost IC 52 detects the amplitude of the second signal through the feedback circuit 55 before the LCM 53, and determines the minimum output voltage according to the amplitude of the second signal. The first signal has the same sequence as the second signal. After the minimum input voltage and the minimum output voltage are determined, the CPU may send a screen-up command to the independent display IC 51, so that the independent display IC 51 controls the screen LCM 53 to be screen-up for normal display.

It should be understood that, in the above embodiment, the enhanced IC is disposed before the independent display IC and the screen to execute the signal processing method, but the signal processing method provided in this embodiment may also be applied to the CPU and other peripherals, such as the CPU and the camera, the CPU and the independent display IC, or between the CPU and the screen, and the application does not limit this.

Further, in the signal processing method provided in the embodiment of the present application, the execution main body may be a signal processing apparatus. Next, a signal processing apparatus provided in an embodiment of the present application will be described by taking a signal processing method executed by a signal processing apparatus as an example.

As shown in fig. 7, the signal processing apparatus 60 provided in the embodiment of the present application may include a first receiving module 61, a first transmitting module 62, a first processing module 63, and a second processing module 64. Specifically, the first receiving module 61 is configured to receive a first signal sent by the first integrated circuit unit, and determine a minimum input voltage when a target sequence is read from the first signal, where the first signal is a signal of a mobile industry processor interface MIPI; a first transmitting module 62, configured to transmit a second signal to the second integrated circuit unit based on the target sequence and detect an amplitude of the second signal received by the second integrated circuit unit in case of a minimum input voltage; a first processing module 63, configured to determine a minimum output voltage according to an amplitude of the second signal received by the second integrated circuit unit; and a second processing module 64, configured to receive the MIPI signal sent by the first integrated circuit unit under the condition of the minimum input voltage and the minimum output voltage, and send the MIPI signal to the second integrated circuit unit again.

The signal processing apparatus provided by this embodiment adjusts the input voltage by receiving the signal of the first integrated circuit unit, and adjusts the output voltage by sending the signal to the second integrated circuit unit, so that the input voltage and the output voltage can be respectively matched with the first integrated circuit unit and the second integrated circuit unit, correct transmission of the signal can be ensured, and effectiveness of signal transmission is improved. And the amplitude of the signal can be improved by increasing the output voltage, so that the abnormal problem caused by loss of the signal in the transmission process is avoided, and the normal work of the second integrated circuit unit is ensured.

In an exemplary embodiment, the first receiving module 61 may specifically include: the first detection unit is used for receiving the first signal, detecting whether a target sequence of the first signal is read or not, and increasing the input voltage under the condition that the target sequence of the first signal is not read; a first determination unit configured to determine an input voltage at which the target sequence of the first signal is read as a minimum input voltage.

In an exemplary embodiment, the first detecting unit may include: the first acquisition unit is used for acquiring the amplitude of the first signal when the first signal is received; and a first increasing unit for increasing the input voltage based on the amplitude of the first signal.

In an exemplary embodiment, the first receiving module 61 may further specifically include: and a second increasing unit for determining the first step and continuing to increase the input voltage based on the first step in a case where the target sequence is not read after increasing the input voltage.

In an exemplary embodiment, the first processing module 63 may specifically include: a third increasing unit for determining whether the amplitude of the second signal is smaller than a standard amplitude of the second integrated circuit unit, and increasing the output voltage in case that the amplitude of the second signal is smaller than the standard amplitude; a second determining unit for determining the output voltage as a minimum output voltage in a case where the amplitude of the second signal is not less than the standard amplitude.

In an exemplary embodiment, the third increasing unit is specifically configured to: a difference between the amplitude of the second signal and the standard amplitude is determined, and the output voltage is increased based on the difference.

In an exemplary embodiment, the first signal is a signal transmitted by the first integrated circuit unit based on a highest frequency within a target frequency range, wherein the target frequency range is a frequency range of MIPI between the first integrated circuit unit and the second integrated circuit unit.

The signal processing apparatus in the embodiment of the present application may be a mobile device, and may also be a component in the mobile device, such as an integrated circuit or a chip. The mobile device may be a terminal, or may be a device other than a terminal. The Mobile Device may be, for example, a Mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic Device, a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a wearable Device, an ultra-Mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and may also be a server, a Network Attached Storage (Network Attached Storage, NAS), a personal computer (NAS), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.

The signal processing apparatus in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.

The signal processing apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiments in fig. 1 to fig. 6, and is not described here again to avoid repetition.

Optionally, as shown in fig. 8, an embodiment of the present application further provides a mobile device 700, which includes a processor 701 and a memory 702. The memory 702 stores a program or an instruction that can be executed on the processor 701, and when the program or the instruction is executed by the processor 701, the steps of the signal processing method embodiment are implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not described here again.

It should be noted that the mobile device in the embodiment of the present application includes the mobile device and the non-mobile device described above.

Fig. 9 is a schematic hardware structure diagram of a mobile device implementing an embodiment of the present application.

The mobile device 800 includes, but is not limited to: a radio frequency unit 801, a network module 8102, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and components such as a processor 810, a boost circuit 811, and a boost circuit 812.

Those skilled in the art will appreciate that the mobile device 800 may also include a power supply (e.g., a battery) for powering the various components, which may be logically coupled to the processor 810 via a power management system that may be configured to manage charging, discharging, and power consumption management functions. The mobile device structure shown in fig. 9 does not constitute a limitation of the mobile device, and the mobile device may include more or less components than those shown, or combine some components, or arrange different components, and thus will not be described again.

The enhancing unit 811 is configured to receive a first signal sent by the first integrated circuit unit, and determine a minimum input voltage when a target sequence is read from the first signal, where the first signal is a signal of a mobile industry processor interface MIPI; transmitting a second signal to the second integrated circuit unit based on the target sequence and detecting the amplitude of the second signal received by the second integrated circuit unit in the case of the minimum input voltage; determining a minimum output voltage according to the amplitude of the second signal received by the second integrated circuit unit; and under the condition of the minimum input voltage and the minimum output voltage, the MIPI signal sent by the first integrated circuit unit is received, and the MIPI signal is sent to the second integrated circuit unit again. The first integrated circuit unit is the processor 810, and the second integrated circuit unit is the display unit 806.

The enhancement unit 811 is the enhancement IC described above. It is to be understood that an enhancing unit 811 may also be provided at other peripheral devices of the mobile device 800, for example, before the processor and input unit 804, for enhancing the MIPI signal of the processor, etc.

The input Unit 804 may include a Graphics Processing Unit (GPU) 1041 and a microphone 8042, and the Graphics processor 8041 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. A touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two portions of a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playing function, an image playing function, etc.), and the like. Further, the memory 809 can include volatile memory or nonvolatile memory, or the memory 809 can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM), a Static Random Access Memory (Static RAM, SRAM), a Dynamic Random Access Memory (Dynamic RAM, DRAM), a Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, ddr SDRAM), an Enhanced Synchronous SDRAM (ESDRAM), a Synchronous Link DRAM (SLDRAM), and a Direct Memory bus RAM (DRRAM). The memory 809 in the present embodiment of the application includes, but is not limited to, these and any other suitable types of memory.

Processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor, which primarily handles operations related to the operating system, user interface, and applications, and a modem processor, which primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the signal processing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the mobile device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read only memory ROM, a random access memory RAM, a magnetic or optical disk, and the like.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the signal processing method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, or a system-on-chip.

Embodiments of the present application provide a computer program product, where the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the processes of the foregoing signal processing method embodiments, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A signal processing method applied to a mobile device is characterized by comprising the following steps:

receiving a first signal sent by a first integrated circuit unit, and determining a minimum input voltage when a target sequence is read from the first signal, wherein the first signal is a signal of a Mobile Industry Processor Interface (MIPI);

transmitting a second signal to a second integrated circuit unit based on the target sequence and detecting an amplitude of the second signal received by the second integrated circuit unit in case of the minimum input voltage;

determining a minimum output voltage according to the amplitude of the second signal received by the second integrated circuit unit;

and under the condition of the minimum input voltage and the minimum output voltage, receiving the MIPI signal transmitted by the first integrated circuit unit, and retransmitting the MIPI signal to the second integrated circuit unit.

2. The signal processing method of claim 1, wherein the determining a minimum input voltage for reading from the first signal to a target sequence comprises:

receiving the first signal, detecting whether a target sequence of the first signal is read or not, and increasing an input voltage under the condition that the target sequence of the first signal is not read;

determining an input voltage at which a target sequence of the first signal is read as the minimum input voltage.

3. The signal processing method of claim 2, wherein the increasing the input voltage comprises:

when the first signal is received, acquiring the amplitude of the first signal;

increasing the input voltage based on the magnitude of the first signal.

4. The signal processing method of claim 3, further comprising, after increasing the input voltage based on the magnitude of the first signal:

in case the target sequence is not read after increasing the input voltage, a first step is determined, based on which the increase of the input voltage is continued.

5. The signal processing method of claim 1, wherein determining a minimum output voltage based on the magnitude of the second signal received by the second integrated circuit unit comprises:

determining whether the amplitude of the second signal is less than a standard amplitude of the second integrated circuit cell, and increasing the output voltage if the amplitude of the second signal is less than the standard amplitude;

and determining the output voltage as the minimum output voltage under the condition that the amplitude of the second signal is not less than the standard amplitude.

6. The signal processing method of claim 5, wherein the increasing the output voltage comprises:

determining a difference between the amplitude of the second signal and the standard amplitude, increasing the output voltage based on the difference.

7. The signal processing method of claim 1, wherein the first signal is a signal transmitted by the first integrated circuit unit based on a highest frequency within a target frequency range, wherein the target frequency range is a frequency range of MIPI between the first integrated circuit unit and the second integrated circuit unit.

8. A signal processing apparatus, characterized by comprising:

the first receiving module is used for receiving a first signal sent by a first integrated circuit unit and determining a minimum input voltage when a target sequence is read from the first signal, wherein the first signal is a signal of a Mobile Industry Processor Interface (MIPI);

a first transmitting module, configured to transmit a second signal to a second integrated circuit unit based on the target sequence and detect an amplitude of the second signal received by the second integrated circuit unit under the condition of the minimum input voltage;

the first processing module is used for determining the minimum output voltage according to the amplitude of the second signal received by the second integrated circuit unit;

and the second processing module is used for receiving the MIPI signal sent by the first integrated circuit unit under the condition of the minimum input voltage and the minimum output voltage and sending the MIPI signal to the second integrated circuit unit again.

9. A mobile device, comprising:

the first integrated circuit unit is provided with a MIPI interface, and the MIPI interface is connected with the first MIPI interface of the enhanced circuit unit;

the enhanced circuit unit also comprises a second MIPI interface, and the second MIPI interface is connected with the MIPI interface of the second integrated circuit unit;

the enhancement circuit unit is used for implementing the signal processing method according to any one of claims 1 to 7.

10. The mobile device of claim 9, wherein the first integrated circuit unit comprises a processor, a separate display chip; the second integrated circuit unit comprises a display screen; and the processor or the independent display chip sends a signal from the MIPI interface to control the display screen to display.