21 results about "Mobile industry processor interface" patented technology

The invention discloses a multi-protocol high-speed image data receiving and aligning method and system based on an FPGA (Field Programmable Gate Array), and relates to the technical field of electronic information and image processing. Serial data streams from an image sensor are received, an FPGA serial input primitive is dynamically called to convert serial data into parallel data; a low-voltage differential signal protocol, a mobile industry processor interface protocol and a serial low-voltage signal protocol are supported; a configurable sliding window mechanism is adopted to compare synchronous codes in real time, and byte boundaries are locked; by identifying the time difference of arrival of data of each channel, multi-channel phase alignment is realized by adopting hardware-level delay compensation, and data arriving at the channel in advance is compensated by adopting a first-level register cache; and analyzing frame header and frame tail information of the image data, reconstructing an original image matrix and generating a video time sequence signal. The problems of poor compatibility and high resource consumption in multi-protocol high-speed image data receiving are solved.

The application discloses a signal processing method, a signal processing device and a mobile device, and belongs to the electronic technical field. The method comprises the following steps: receiving a first signal sent by a first integrated circuit unit, 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); under the condition of the minimum input voltage, sending a second signal to a second integrated circuit unit based on the target sequence, and detecting the amplitude of the second signal received by the second integrated circuit unit; determining a minimum output voltage according to the amplitude of the second signal received by the second integrated circuit unit; and under the conditions of the minimum input voltage and the minimum output voltage, receiving the MIPI signal sent by the first integrated circuit unit, and re-sending the MIPI signal to the second integrated circuit unit.

This application discloses a signal anti-interference method and an electronic device, and relates to the field of terminals. A system-on-chip (SoC) chip may obtain parameter information (for example, an amplitude of a radio frequency signal, a phase of the radio frequency signal, a waveform of the radio frequency signal and the like) of the radio frequency signal coupled on a mobile industry processor interface (MIPI) signal line. Based on the parameter information of the radio frequency signal, the SoC chip may generate a reverse signal of the radio frequency signal, where the reverse signal is the same as the radio frequency signal in amplitudes (which may also be referred to as amplitude values) and waveforms and opposite in phases. The SoC chip may superimpose the reverse signal with a signal transmitted by the MIPI signal line, to eliminate the radio frequency signal coupled on the MIPI signal line.

The application provides a data transmission method and device, electronic equipment and storage medium, wherein a current frequency of a first clock signal corresponding to a high-speed data transmission mode of a mobile industry processor interface (MIPI) is obtained, and a target frequency of a second clock signal corresponding to a low-power mode of the mobile industry processor interface is determined according to the current frequency of the first clock signal, the target frequency of the second clock signal is greater than a default frequency of the second clock signal, and the mobile industry processor interface is controlled to perform data transmission according to the first clock signal and the second clock signal with the target frequency. The above method enables the mobile industry processor interface to switch between the high-speed data transmission mode and the low-power mode according to the second clock signal with the higher frequency than the default frequency during the data transmission process, thereby saving the time spent on mode switching and achieving the purpose of improving the data transmission efficiency.

The utility model provides an amplifying circuit for high-speed comparison in an MIPI (Mobile Industry Processor Interface) high-speed interface, which comprises a first amplifying module, the first amplifying module comprises a reverse-phase amplifying circuit, the reverse-phase amplifying circuit comprises an MOS (Metal Oxide Semiconductor) tube M1 and an MOS tube M3, the source electrode of the MOS tube M1 is connected with a first current source I1, the grid electrode of the MOS tube M1 receives a reverse-phase input signal, and the source electrode of the MOS tube M1 is connected with a second current source I2; a resistor R1 is connected in series between the drain electrode of the MOS tube M1 and the drain electrode of the MOS tube M3, the base electrode of the MOS tube M3 is grounded, and the source electrode of the MOS tube M1 outputs a first inversion signal. According to the utility model, the bipolar transistor can be used by the MIPI high-speed interface under low power supply voltage.

The application belongs to the technical field of display, and particularly relates to a display screen refresh frame rate adjustment method and device, a processor, a chip and a terminal. In the embodiment of the application, the working state of a mobile industry processor interface is monitored, and when the working state of the mobile industry processor interface changes, the refresh frame rate of the display screen for image display is adjusted, so that the refresh frame rate of the display screen can be dynamically adjusted according to the working state of the mobile industry processor interface, thereby avoiding the problem of high power consumption of the display screen caused by fixed use of high refresh frame rate for display, and helping to reduce the power consumption of the display screen. Meanwhile, the real-time performance is higher.

This application discloses a signal switching method and apparatus for a Mobile Industry Processor Interface (MIPI) repeater, relating to the field of mobile industry processor interface technology. This method actively triggers repeater initialization. After initialization, the MIPI input signal is then connected, ensuring strict synchronization between the repeater's output LP-HS switching and the input signal. Through register initialization configuration, the repeater can pre-know the relevant parameters and requirements for signal transmission, enabling a rapid response upon signal arrival. Synchronizing the output LP-HS switching with the input signal based on pre-configured parameters ensures no timing deviations or distortions occur during signal transmission. This achieves fast and accurate transmission of MIPI input signals, improving signal transmission quality. Consequently, it effectively avoids signal delay and packet loss, enhancing the overall system performance and stability.

The invention discloses a control method of external equipment, the external equipment, a host and a storage medium, and relates to the technical field of the external equipment, the control method is applied to the external equipment, and the external equipment comprises a wired interface, a video bridging chip, a display module and an operation module. Based on the control instruction of the current display content of the display module, the control instruction is sent to the host through the wired interface; a display port signal fed back by the host after executing the control instruction is converted into a mobile industry processor interface signal based on the video bridging chip; and outputting a display picture corresponding to the interface signal of the mobile industry processor in the display module. The external equipment does not need to be equipped with a high-power-consumption assembly supporting independent operation, so that a high-capacity battery does not need to be arranged to meet the high-power-consumption requirement, the problem of equipment weight increase caused by the high-capacity battery is effectively avoided, and the user experience is improved.

Method for driving a display system at low power with a Mobile Industry Processor Interface. The method of a display driver IC includes: (a) upon receiving a t1-st MIPI sync signal and a t1-st video data, (i) synchronizing the t1-st MIPI sync signal with a t1-st display sync signal, (ii) generating a t1-st display data, and (iii) transmitting the t1-st display sync signal and the t1-st display data to a display panel having in-pixel memory, to store the t1-st display data in in-pixel memories and display a t1-st video image; and (b) in response to receiving a low power drive initiating command, in case a (t1+1)-th MIPI sync signal and a (t1+1)-th video data has not been received, transmitting a (t1+1)-th display sync signal to the display panel having in-pixel memory, to display the t1-st video image corresponding to the t1-st display data stored in the in-pixel memories.

A display apparatus includes: a display panel including a display layer and a touch screen layer; a flexible printed circuit board electrically connected to one side of the display panel; a driving driver on the display panel; a processor on the flexible printed circuit board; and mobile industry processor interface (MIPI) data lanes on the flexible printed circuit board and electrically connecting the processor and the driving driver to each other, wherein each of the MIPI data lanes includes a first access line and a second access line, and in at least one of the MIPI data lanes, a phase of a signal at the first access line and a phase of a signal at the second access line are configured to be different from each other, based on transmission of a low power state (LPS) signal.

According to one embodiment, an electronic device may include: a communication circuit for performing wireless communication by using a plurality of communication bands; at least one memory including information related to a plurality of mobile industry processor interface (MIPI) frequencies; at least one processor operably connected to the communication circuitry and the memory; and an internal circuit connected to the at least one processor through an MIPI interface. The at least one processor is capable of identifying first interference data indicating an amount of interference between each of the plurality of communication bands and each of the MIPI frequencies, identifying a weight corresponding to each of the plurality of MIPI frequencies based on a communication parameter related to wireless communication for each of the plurality of communication bands, first interference data for each of the MIPI frequencies is updated based on the identified weights, and an MIPI frequency for driving the MIPI interface is selected based on the updated first interference data. Other various embodiments are possible.

The disclosure provides a mobile industry processor interface (MIPI) circuit, a chip and an electronic device. The MIPI interface circuit includes N pins, a path control component, and N interface components. The mode of data transmission in the MIPI is controlled via the path control component, which improves the efficiency and flexibility of data transmission. Moreover, by multiplexing the interface components in the data paths of a display physical layer (DPHY) and a camera physical layer (CPHY), the complexity and cost of the MIPI interface circuit can be reduced, and the scope of application of the MIPI can be expanded.

An analog front end (AFE) circuit of a display receiver includes an input pad, a voltage detection circuit, and a switching circuit. The input pad may receive an input signal of a low power mode of a Mobile Industry Processor Interface (MIPI) standard and receive an input signal of a high speed mode of the MIPI standard. Because the voltage levels of the input signals of different modes are different, the voltage detection circuit receives the input signals and generates control signals according to the voltage levels of the input signals. The switching circuit is coupled to the voltage detection circuit, and the switching circuit is located between the input pad and the equalizer circuit. The switching circuit receives an input signal and determines whether to transmit the input signal from the input pad to the equalizer circuit according to a control signal. The control signal comprises two different voltage levels respectively corresponding to a high-speed mode and a low-power mode.

Embodiments of the present disclosure provide an image transmission apparatus and method, a processor, and a virtual reality chip. A master processor is connected to a slave processor by means of a mobile industry processor interface. An apparatus applied to the master processor comprises: a data arrangement module, used for respectively performing data arrangement on Alpha data and RGB data of an image in an application, the Alpha data and the RGB data being arranged to different data regions; and a sending control module, used for sending the arranged Alpha data and RGB data by means of the mobile industry processor interface. In the embodiments of the present disclosure, the master processor transmits the image comprising the Alpha data and the RGB data to the slave processor by means of the mobile industry processor interface, which does not affect a transmission protocol of the mobile industry processor interface, and has good universality.

An interface circuit has a data recovery circuit, a protocol interface circuit, and a controller or processor that can be implemented using a finite state machine. The data recovery circuit may be configured to receive a stream of symbols through three wires of a serial bus according to a high speed mode defined by a Mobile Industry Processor Interface Alliance (C-PHY) protocol. The protocol interface circuit may be coupled to an output of the data recovery circuit and configured to receive data from the data recovery circuit. The finite state machine may be configured to disable the data recovery circuit when an end of transmission is indicated in a first end of transmission signal received from the protocol interface circuit.

Analog front-end (AFE) circuit of display receiver includes input pad, voltage detecting circuit, and switching circuit. The input pad may receive input signal of low power mode of Mobile Industry Processor Interface (MIPI) standard and input signal of high-speed mode of MIPI standard. Since voltage level of input signal of different modes are different, the voltage detecting circuit is configured to receive the input signal and generate control signal according to a voltage level of the input signal. The switching circuit is coupled to the voltage detecting circuit and between the input pad and the equalizer circuit. The switching circuit is configured to receive the input signal, and determine whether to pass the input signal from the input pad to the equalizer circuit according to the control signal, wherein the control signal includes two different voltage levels that are respectively corresponding to a high-speed mode and a low power mode.

According to an embodiment, an electronic device may comprise: a control circuit including a plurality of mobile industry processor interface (MIPI) circuits; a plurality of driving circuits connected to the plurality of MIPI circuits; and a selection circuit connected to a plurality of control paths between the plurality of MIPI circuits and the plurality of driving circuits. The selection circuit may be configured to, while control signals are respectively provided to the plurality of driving circuits, output at least one of the plurality of control signals provided to the plurality of driving circuits.

In a vehicular communication network, an Ethernet network interface receives an Ethernet packet via an Ethernet link and decapsulates an intermediate frame from the Ethernet packet. The intermediate frame includes a first header in an intermediate frame format and a first payload, which includes sensor data, in the intermediate format. The intermediate format is different than any camera serial interface (CSI) protocol of the Mobile Industry Processor Interface (MIPI) Alliance. The Ethernet network interface provides the intermediate frame to a processor. The processor generates a packet in a CSI protocol format defined by the MIPI Alliance. The processor uses header information in the first header of the intermediate frame to populate one or more header fields of a second header of the packet in the CSI protocol format, and uses payload information in the intermediate frame to generate a second payload of the packet in the CSI protocol format.

[Problem] To efficiently transmit a plurality of packets having different MIPI CSI-2 types and structures at a high speed. [Solution] A communication device of the present invention is provided with: a packet generation unit that generates an application packet by encapsulating a packet following a camera serial interface 2 (CSI-2) specification specified by a camera service extension (CSE) specification of a mobile industry processor interface (MIPI), without differentiating the type and structure of the packet; and a communication unit that transmits the application packet to a communication partner device.

The invention discloses an MIPI (Mobile Industry Processor Interface) double-display screen switching system and method for sharing clock synchronization. The system comprises a processor, a first display screen, a second display screen, a clock sharing link, a data switching module, a frame buffer area and a display driving module. The same clock channel of the processor MIPI DSI controller is directly connected to the two display screens in parallel through the clock sharing link, so that clock synchronization is ensured; the display driving module responds to vertical synchronization interruption generated by a processor MIPI DSI controller to determine a vertical synchronization blanking period, controls the data switching module to switch the display screen in the blanking period, and then sends corresponding sub-image data in the frame buffer area to the switched display screen. Therefore, stable and tear-free time-sharing driving of the single MIPI DSI interface to the double display screens is realized. TE signals do not need to be provided by a display screen, hardware cost and power consumption are remarkably reduced, and application development is simplified.

The invention discloses a radio frequency automatic test system based on an Access database and a spontaneous Trigger. The system comprises an Access database, a Trigger control module and an automatic test system, wherein the Access database is used for storing configuration information of a test case customized by a user; the Trigger control module is used for supplying power to tested equipment and issuing an MIPI (Mobile Industry Processor Interface) instruction and a plurality of paths of independently controlled Trigger signals; the Trigger signal is used for deploying a synchronization requirement or an asynchronous requirement of equipment; and the automatic test system is used for executing a TX performance test, an RX performance test and / or a Ruggeess test by utilizing the configuration information of the test case according to the issued MIPI instruction and Trigger signal. According to the scheme provided by the invention, for verification tests of receiving and transmitting of the radio frequency device, complex test items can be completed more flexibly, and the verification efficiency is greatly improved.