172 results about "Mobile industry processor interface" patented technology

The invention discloses a radio-frequency interference processing method, a storage medium and a terminal. The radio-frequency interference processing method comprises the following steps: obtaining radio frequency information obtained when the terminal communicates, wherein the radio frequency information comprises a current channel and signal intensity of the current channel; when judging that the current channel is an interference channel of MIPI (mobile industry processor interface) main frequency in an interference channel information record table, judging whether the difference value between the signal intensity of the current channel and interference degree corresponding to the interference channel is smaller than a threshold value; and when the difference value between the signal intensity of the current channel and the interference degree corresponding to the interference channel is smaller than the threshold value, adjusting working frequency of the MIPI into MIPI backup frequency. When the MIPI main frequency has interference on the radio-frequency signal, the MIPI work frequency is switched to the MIPI backup frequency, thereby reducing interference of the MIPI main frequency on the radio-frequency signal, and improving conversation quality.

The invention provides a method and a device for configuring a clock frequency of a mobile industry processor interface (MIPI). When a radio frequency band used by a device in which the MIPI is changes, an MIPI clock frequency is determined according to radio frequency band information, wherein the radio frequency band information comprises a radio frequency band used by the device at present, and the determined MIPI clock frequency does not interfere with the radio frequency band used by the device at present; and the MIPI clock frequency of the device is configured to be the determined MIPI clock frequency. Through adoption of the method, when the radio frequency band of the device changes, the MIPI clock frequency does not interfere with the communication of the device, so that device communication quality and stability are improved.

A data transmission method applied in a display, which includes a display panel, is provided. The data transmission method includes the following steps of: providing a host controller and n display drivers, n is a natural number greater than 1; providing a communication link under mobile industry processor interface (MIPI), connecting the host controller to the n display drivers; determining n virtual channel values Vc1-Vcn corresponding to the respective n display drivers; employing the host controller for providing a command with a virtual channel parameter through the communication link under MIPI; when the virtual channel parameter corresponds to an ith virtual channel values Vci, an ith display driver executing corresponding operations in response to the command, while the rest n−1 display drivers ignoring the command, wherein i is a natural number smaller than or equal to n.

The invention discloses a test method and system for reducing the interference of mobile industry processor interfaces (MIPI). The test method includes the following steps that: when a tested terminal establishes communication, current communication frequency is obtained, the first preset frequency of a first interface type of mobile industry processor interfaces in mobile industry processor interfaces which work currently is obtained, wherein the first preset frequency is the default work frequency of the first interface type of mobile industry processor interfaces; the first preset frequency is compared with the communication frequency, and whether the first preset frequency is in the frequency band of the communication frequency is judged; and when the first preset frequency is not in the frequency band of the communication frequency, the first preset frequency is adopted as the current work frequency of the mobile industry processor interfaces. With the test method and system provided by the technical schemes of the invention adopted, the interference of mobile industry processor interfaces in a terminal communication process can be reduced, and user experience can be improved.

The invention provides an anti-interference method for an electronic device and a related product. The anti-interference method and the related product are applied to the electronic device. The electronic device comprises a camera, a flexible printed circuit board and a mainboard. The camera is connected with the mainboard through the flexible printed circuit board. The flexible printed circuit board comprises MIPI (Mobile Industry Processor Interface) lines. The method comprises the steps of acquiring a radio frequency band of a registration channel when the camera of the electronic device works according to a first MIPI frequency; switching the first MIPI frequency to a second MIPI frequency when an intersection exits between the radio frequency band and a first preset interference frequency point set corresponding to the first MIPI frequency, wherein the intersection does not exist between a second preset interference frequency point set corresponding to the second MIPI frequency and the radio frequency band; and keeping the first MIPI frequency when the intersection does not exist between the radio frequency band and the first preset interference frequency point set. Through adoption of the embodiment of the invention, the interference between the camera and the RF can be reduced, the communication quality of a user can be improved, and the user experience is high.

A method for a Mobile Industry Processor Interface (MIPI) master device for improving clock recovery at a MIPI slave device includes: transmitting a symbol sequence including a plurality of consecutive symbols which include at least one of a first symbol value and a second symbol value to the MIPI slave device prior to transmitting packet data to the MIPI slave device, wherein the first symbol value and the second symbol value bring relatively larger encoding jitters than other symbol values.

The invention provides a camera module control method and device based on a WIFI (Wireless Fidelity) network. The method comprises the steps of detecting whether a master MIPI (Mobile Industry Processor Interface) frequency employed by a currently working camera module carries out co-channel interference on a WIFI channel or not when it is detected that terminal equipment in the WIFI network starts a camera function and it is determined that an application scene of the camera function belongs to a video communication scene, starting a frequency hopping mechanism when it is detected that a channel of the master MIPI frequency carrying out the co-channel interference on the WIFI channel is a video communication channel of the application scene, and controlling the camera module to switch toa preset backup MIPI frequency. Under the condition of not influencing a video, the master MIPI frequency is hopped to a frequency which is not overlapped with a WIFI frequency, the co-channel interference of the camera module on a WIFI antenna in the video communication scene under the WIFI of a user is solved, and the hardware cost is reduced.

The invention discloses a method and a system for lowering interference of a terminal display screen. The method comprises the steps of firstly, determining a mobile industry processor interface (MIPI) interference interval of the display screen according to read MIPI frequency of the display screen and MIPI line quantity used by the display screen and stored in a terminal; then, determining an interference frequency point of the display screen according to the MIPI interference interval of the display screen and a frequency domain used by the terminal; and configuring a notching filter for a channel corresponding to the interference frequency point of the display screen in a modulator-demodulator. Through adoption of the method, the interference is prevented at the beginning, a radio frequency signal is prevented from interference of the display screen, the complete machine receiving performance of the terminal is improved, and the method is suitable for practical application.

The invention discloses a test method and a test system for implementing COMMAND-mode MIPI (mobile industry processor interface) modules and used for configuration testing of the COMMAND-mode MIPI modules before delivery. The test method mainly includes the steps that a PG (program guidance) image generator sets register configuration parameters and image data according to types of the COMMAND-mode MIPI modules, transmits the register configuration parameters to an MCU (microprogrammed control unit), and transmits the image data to an FPGA (field programmable gate array) through an LVDS (low voltage differential signaling) data bus interface; the MCU generates DCS (data communication system) instructions according to the register configuration parameters and transmits the DCS instructions to the FPGA; the FPGA receives image data signals through the LVDS data bus interface and has the DCS instructions and the image data packaged and transmitted to a bridge chip; the bridge chip transmits the DCS instructions for configuration of the MIPI modules and converts the image data to the MIPI signals which are transmitted to the MIPI modules, and the MIPI modules display the image data according to the MIPI signals to complete testing.

A timing controller capable of communicating with a host via a Mobile Industry Processor Interface (MIPI) interface and communicating with a display via a display interface, includes a detection circuit that detects whether at least one of the MIPI interface and the timing controller is operating normally, and generates a detection signal, and an interrupt generation circuit that transmits the detection signal as an interrupt to the host via an exclusive line.

The invention discloses a method and a system for generating MIPI (mobile industry processor interface) signals for MIPI module detection. RGB image data are acquired through link video signals and then MIPI signals are acquired through the RGB image data. To be specific, the method comprises steps as follows: before the RGB signals are converted into the MIPI signals, the RGB image data converted from the video signals are cached; a local RGB image pixel clock is acquired according to required image timing sequence parameters displayed by an MIPI module; a stable local image timing sequence is generated under the control of the RGB image pixel clock according to the image timing sequence parameters, and image synchronization signals meeting the MIPI module detection requirement are generated; under the control of the image synchronization signals, MIPI conversion is performed on the cached RGB image data, and the MIPI signals meeting the MIPI module detection requirement are acquired. The system for generating MIPI signals for MIPI module detection can be realized on one FPGA (field programmable gate array) chip and has the characteristics of easiness in implementation, lower cost, convenience in operation, work stability, high reliability and the like.

The embodiment of the invention provides a method for reducing signal interference, a storage medium and a terminal. The method comprises the following steps: obtaining a channel where a current communication signal of the terminal is located; judging whether the channel is a preset channel; if the channel is the preset channel, further judging whether the current communication signal is interfered; and if the current communication signal is interfered, adjusting the data transmission rate of a mobile industry processor interface to reduce the interference of the mobile industry processor interface to the communication signal. By adoption of the scheme, when the mobile industry processor interface generates interference to the communication signal, the data transmission rate of the mobile industry processor interface is adjusted to reduce the interference of the communication signal, therefore the communication quality can be improved, and then the stability of the terminal is improved.

The embodiment of the invention provides a method for resisting to higher harmonic interference of a camera MIPI (Mobile Industry Processor Interface) bus. Corresponding relations between RF (Radio Frequency) communication frequency bands capable of being used by a mobile terminal and safety frequencies of the camera MIPI bus are pre-stored in the mobile terminal, wherein higher harmonics generated when the camera MIPI bus works at the safety frequencies cannot fall in a range of the corresponding RF communication frequency bands. The method comprises the steps of detecting an RF communication frequency band currently used by the mobile terminal; according to the corresponding relations, searching the safety frequency of the camera MIPI bus, which corresponds to the RF communication frequency band currently used by the mobile terminal; and setting a current working frequency of the camera MIPI bus to be the searched safety frequency of the camera MIPI bus. By setting the working frequency of the camera MIPI bus to be the searched safety frequency, higher harmonic interference of the camera frequency is avoided from the source.

The invention discloses an FPGA (field programmable gate array) based method and an FPGA based device for adjusting MIPI (mobile industry processor interface) signal transmission. According to the method, time sequences needed by MIPI clock and data transmission are configured and controlled through upper software to enable outputted MIPI signals to meet transmission time sequence requirements of an MIPI DPHY protocol. The device comprises a time sequence control interface module, an MIPI transmission control module, an MIPI signal generation module, an MIPI signal output module, an MIPI clock generation module, an MIPI data conversion module and an MIPI data generation module. The FPGA based method and the FPGA based device have the advantages that the transmission time sequences of an MIPI clock and data can be set respectively, and accordingly, positioning and searching of MIPI module problems are facilitated; transmission time sequence configuration of modules with different resolutions and transmission rates are supported, different parameters are adjusted and controlled in real time during signal transmission by the upper software, and optimization of an MIPI module is facilitated; characteristics of other conversion chips do not need to be known and used during research and development, production and test of the MIPI module, and implementation complexity is lowered.

The invention discloses a Vcom (voltage of common electrode) adjustment device of an MIPI (mobile industry processor interface) liquid crystal module on the basis of FPGA (field programmable gate array). The Vcom adjustment device comprises an upper computer interaction module, an ARM (advanced RISC machine) controller and an MIPI liquid crystal module to be measured. The Vcom adjustment device is characterized by comprising an FPGA signal unit, the upper computer interaction module is connected with the ARM controller through an internet access, the ARM controller is connected with the FPGA signal unit through an external bus interface, and the FPGA signal unit is connected with the MIPI liquid crystal module to be measured. The MIPI bridge chip in a multichannel testing system of the liquid crystal module can be omitted, OTP (one time password) development efficiency of the MIPI liquid crystal module is improved, various requirements of the liquid crystal module on the basis of the MIPI protocol are met, and production efficiency of the liquid crystal module is improved.

The invention relates to a resolution-adaptive MIPI (mobile industry processor interface) graph signal generation device. The resolution-adaptive MIPI graph signal generation device includes an image frame generating module, an image buffer module, an RGB synchronization signal generating module, an RGB image data generating module, an RGB image synchronization module, a multi-link MIPI liquid crystal display module single screen and split screen data generating module, an MIPI data buffer module, an MIPI data conversion module, an MIPI signal output module, an MIPI parameter analysis module and an upper layer interface module. With the resolution-adaptive MIPI graph signal generation device of the invention adopted, the generation of MIPI graphs with different resolutions can be realized. The resolution-adaptive MIPI graph signal generation device has strong compatibility.

The invention provides a testing method for an MIPI full high definition liquid crystal display. The testing method for the MIPI full high definition liquid crystal display comprises: step 1, a full high definition liquid crystal display test fixture applying an EP2C5Q208C8N chip and an SSD2826 chip is provided, wherein the test fixture comprises a testing module and an MIPI module; step 2, a liquid crystal display to be tested is electrically connected with a backlight driving module and the MIPI module; step 3, a power supply is powered on, a microprocessor detects the backlight driving module, a liquid crystal driving module and a signal conversion module; step 4, if any abnormity is detected, an alarm for prompting is issued, if no abnormity is detected, initialization is performed on the modules; step 5, the liquid crystal driving module initializes the liquid crystal display to be tested; step 6, the signal conversion module converts RGB (red, green and blue) signals transmitted by the microprocessor into MIPI signals and transmits the MIPI signals to the liquid crystal display to be tested, and the liquid crystal display to be tested displays a corresponding image; step 7, whether the liquid crystal display to be tested is qualified or not is judged according to the image.

The invention discloses a testing method for an MIPI (mobile industry processor interface) liquid crystal screen. The method comprises the following steps of: (1) providing a test tool; (2) electrically connecting the to-be-tested liquid crystal screen with a backlight source driver module and an MIPI module; (3) powering on the test tool; (4 ) giving alarm if an abnormity is detected by a microprocessor, and performing initialization on the backlight source driver module, a liquid crystal driver module and a signal conversion module if no abnormity is detected by the microprocessor; (5) driving the backlight source of the to-be-tested liquid crystal screen to work by the backlight source driver module under the control of the microprocessor; (6) converting an RGB signal transmitted from the microprocessor into an MIPI signal by the signal conversion module and transmitting the MIPI signal to the to-be-tested liquid crystal screen, and enabling the to-be-tested liquid crystal screen to display the corresponding image according to the MIPI signal; and (7) judging whether the image is normal or not, determining that the to-be-tested liquid crystal screen is qualified if the image is normal, and otherwise determining that the to-be-tested liquid crystal screen is unqualified.

The invention relates to a protocol interface device based on the mobile industry processor interface (MIPI). The device comprises a data receiving and sending module and a channel control and interface logic module used for processing the received or sent data. Especially, the data receiving and sending module comprises at least one submodule of a high speed receiving submodule, a high speed sending submodule, a low-power receiving submodule and a low-power sending submodule which are electrically connected with a differential port used for receiving / sending data, wherein the high speed receiving submodule is used to amplifying and shaping the differential signals with low power and low swing amplitude which is input to the interface device to rail to rail signals of which swing amplitude of output voltage is near or equal to the supply voltage. The low-power sending submodule is used to perform control input to the waveform of signals of the interface device, thus the time of rising edge from 15% to 85% of the total peak area in the signal waveform and the time of failing edge from 15% to 85% of trough in the signal waveform are not more than 25ns. The invention provides the realization scheme of the high speed receiving submodule and low-power sending submodule which are applicable to industrial application.

The invention provides a multi-image sensor image processing device with an MIPI (Mobile Industry Processor Interface) and a method, which comprise a main image sensor chip for catching image data, transmitting the image data into a main control chip through the MIPI after processing the caught image data, or receiving the image data caught from the image sensor chip, and transmitting the image data to the main control chip through the MIPI after processing the image data, one or more than one auxiliary image sensor chip for catching the image data and transmitting the caught image data to the main image sensor chip, and the main control chip for receiving the processed image data transmitted by the main image sensor chip. According to the invention, the area of an auxiliary image sensor can be compressed to be minimum, so that the phenomenon of data crosstalk can not be caused, the problem that in the prior art, the area of the chip of multi-image sensor equipment is wasted is effectively solved and the cost of the multi-image sensor equipment is reduced.

A data transmission method is applied in a display which comprises a display panel and includes steps of providing a main controller and n display drivers; providing a mobile industry processor interface (MIPI) communication link to connect with the main controller and the n display driver; respectively determining n virtual channel values Vc1-Vcn corresponding to the n display drivers; applying the main controller to provide control commands with parameters of virtual channels via the MIPI communication link; when the parameters of the virtual channels correspond to the ith virtual channel value Vci, subjecting the ith display driver to responding to the control commands to execute corresponding operation, and subjecting the rest n-1 display drivers to give up the control commands, wherein the n is a natural number larger than 1, and the i is a natural number smaller than or equal to n.

A Mobile Industry Processor Interface (MIPI) physical layer (D-PHY) serial communication link and a method of reducing clock-data skew in a MIPI D-PHY serial communication link include apparatus including a clock transmitting circuit for transmitting a clock signal on a first lane of the MIPI D-PHY serial link, a data transmitting circuit for transmitting a data signal on a second lane of the MIPI D-PHY serial link, a clock receiving circuit for receiving the clock signal on the first lane of the MIPI D-PHY serial link, and a data receiving circuit for receiving the data signal on the second lane of the MIPI D-PHY serial link. The clock transmitting circuit and the data transmitting circuit transmit the clock signal and the data signal in phase during a calibration mode and out of phase during a normal operation mode.

A mobile industry processor interface MIPI clock frequency configuration method and apparatus are provided. When a radio frequency band used by a device on which an MIPI is located changes, an MIPI clock frequency is determined according to radio frequency band information, where the radio frequency band information includes the radio frequency band currently used by the device, and the determined MIPI clock frequency causes no interference to the radio frequency band currently used by the device; and an MIPI clock frequency of the device is configured as the determined MIPI clock frequency. According to the technical solutions in the present invention, when a radio frequency band of a device changes, an MIPI clock frequency causes no interference to communication of the device, thereby improving communication quality and stability of the device.

A data transmission method applied in a display, which includes a display panel, is provided. The data transmission method includes the following steps of: providing a host controller and n display drivers, n is a natural number greater than 1; providing a communication link under mobile industry processor interface (MIPI), connecting the host controller to the n display drivers; determining n virtual channel values Vc1-Vcn corresponding to the respective n display drivers; employing the host controller for providing a command with a virtual channel parameter through the communication link under MIPI; when the virtual channel parameter corresponds to an ith virtual channel values Vci, an ith display driver executing corresponding operations in response to the command, while the rest n−1 display drivers ignoring the command, wherein i is a natural number smaller than or equal to n.

The embodiment of the application discloses an electromagnetic interference control method and related products. If a display screen is in a bright-screen state when electronic equipment is in a calling scene, target working frequency of a modem is acquired, first MIPI working frequency of a display screen MIPI (mobile industry processor interface) is acquired, whether interference with the targetworking frequency exists is determined according to the first MIPI working frequency, and if yes, second MIPI working frequency corresponding to the calling scene is determined, and the display screen MIPI working frequency is adjusted as the second MIPI working frequency. Therefore, the display screen MIPI working frequency can be dynamically adjusted in a case, where a hardware design of the electronic equipment is unchanged, when the electronic equipment is in different user scenes, the display screen MIPI is enabled to work at frequency lesser interfering with the modem, thus electromagnetic interference thereof with modem communication is eliminated or reduced, and best communication performance and calling quality are obtained.

The invention discloses a method and a device for achieving data signals of various LANE numbers of an MIPI (mobile industry processor interface) based on an FPGA (field programmable gate array). The method includes 1), receiving MIPI configuration information from an upper layer to perform configuration operation, wherein the MIPI configuration information includes the LANE numbers of an MIPI module, a module screen-splitting mode, RGB (red-green-blue) bit width, MIPI transmission control parameters and MIPI output electrical configuration; 2), converting input RGB video signals into four-channel screen-splitting video data; 3), converting the four-channel screen-splitting video data into four-channel byte data; 4), packing the four-channel byte data to form four-channel MIPI packed data; 5), allocating the four-channel MIPI packed data to each data LANE to form MIPI signals; 6), subjecting the MIPI signals of each data LANE to MIPI transmission operation; 7), subjecting the MIPI signals of each data LANE to output electrical and transmission characteristic adjustment, and then sending the MIPI signals of each data LANE to the module. The method and the device have the advantages that output of the MIPI signals of 1-LANE, 2-LANE, 3-LANE, 4-LANE, 8-LANE and 16-LANE is achieved through the FPGA to lighten the module, and the method and the device are simple to operate, high in reliability and quite low in cost.

The invention discloses a binocular 720-degree panoramic acquisition system. The binocular 720-degree panoramic acquisition system comprises an acquisition module, a core processing module, a cloud streaming media server module, a local server module, a wide area network terminal experience module and a local area network terminal experience module, wherein the acquisition module is used for acquiring N paths of audio data and double paths of video data; the core processing module is used for matching the N paths of audio data and the double paths of video data, and splicing the N paths of audio data and the double paths of video data into a panoramic video; the cloud streaming media server module and the local server module are used for creating live broadcast, generating a stream pushing address and a playing address, and converting the formats of received audio and video streams; and the wide area network terminal experience module and the local area network terminal experience module are used for finishing audio and video live broadcast. Through two paths of ISP (Image Signal Processing) with high processing capabilities and at least two paths of MIPIs (Mobile Industry Processor Interfaces), hardware synchronous acquisition of double paths of videos, real-time processing of data of double paths of sensors of over ten million of pixels and real-time splicing of 720-degree panoramic videos can be realized; rapid transmission of high-definition image information can still be realized under a relatively low code rate of a network; and the sense of reality and comfort of user experience are improved greatly.

The invention relates to a low power consumption information constant display realization method and device. The low power consumption information constant display realization method is applied to a terminal with a liquid crystal display screen. The method comprises the following steps of switching a liquid crystal display screen to an idle mode and moreover, adjusting display power consumption to an ultra-low power consumption display state; displaying obtained terminal dial information in the ultra-low power consumption display state; periodically starting real-time cock interruption, and logging out an ultra-low power consumption mode by a mobile industry processor interface; refreshing information display by a dial application; and entering the ultra-low power consumption mode again by the mobile industry processor interface. According to the low-light constant display device provided by the invention, a user can watch the information clearly at any time. Moreover, the dial information is periodically refreshed, so the user can watch relatively clear information display in a fixed period, and the power consumption is reduced,

The invention relates to an initial configuration method of a mobile industry processor interface (MIPI) liquid crystal module. The method comprises the steps of compiling an MIPI initialization code file according to a specific format by an initialization code editor interface of an upper computer; parsing the MIPI initialization code file which is edited in a user defined way into an identifiable hexadecimal initialization code file by the program of the upper computer; before the MIPI liquid crystal module is electrified, using an ARM kernel module to read the corresponding hexadecimal initialization code file, and sending the read result into a singlechip to realize the initialization function before the MIPI liquid crystal module is lightened. The method can meet the demand of carrying out flexible compatibility on initialization codes of various types of MIPI liquid crystal modules, thus reducing the version number and the upgrading times of the program of the singlechip.

The invention provides a method and a device for reducing interference signals of mobile communication. The method comprises the following steps: acquiring an MIPI (Mobile Industry Processor Interface) frequency in parameters configured for a functional module in equipment; performing frequency division processing in a first preset ratio according to the acquired MIPI frequency to obtain a first fundamental frequency; performing frequency doubling processing on the first fundamental frequency to obtain a plurality of frequency-doubled frequency points; and searching for a channel of the frequency-doubled frequency points within a frequency range in use, and performing filter processing on the searched frequency-doubled frequency points in the channel. Through adoption of the method and the device, interference caused by the functional module in the equipment can be reduced effectively, and the interference signal processing timeliness is enhanced greatly while the labor force is saved.