Abstract: A data processing method is applied to a digital interface, which includes: reading data cached by a data source, where the data source includes a video source and an auxiliary data source; outputting video data, if the video data cached by the video source is not empty, where when the video data is output, corresponding position marks are at start and end positions of a frame structure of the video data and at start and end positions of a row structure of the video data; and outputting auxiliary data, if the video data cached by the video source is empty, the auxiliary data cached by the auxiliary data source is not empty and the frame structure or the row structure of the video data has been output, where when the auxiliary data is output, corresponding position marks are at a start position and an end position of the auxiliary data.

Abstract: A control method and device for bidirectional communication are provided. A handshake between the master and slave communication units is realized by sending the training sequence. The master communication unit is controlled to obtain control information from the ECU. The control information is packaged into the custom package, and the custom package is encoded. The master communication unit is controlled to send the custom package to the slave communication unit. The slave communication unit decodes, verifies and corrects the custom package. The slave communication unit feeds back the correct message to the master communication unit if the custom package is verified to be correct, else feeds back the error message to the master communication unit. The master communication unit resends the custom package to the slave communication unit if it receives the error information or does not receive any feedback information within the preset time period.

Abstract: A control method and device for bidirectional communication are provided. A handshake between the master and slave communication units is realized by sending the training sequence. The master communication unit is controlled to obtain control information from the ECU. The control information is packaged into the custom package, and the custom package is encoded. The master communication unit is controlled to send the custom package to the slave communication unit. The slave communication unit decodes, verifies and corrects the custom package. The slave communication unit feeds back the correct message to the master communication unit if the custom package is verified to be correct, else feeds back the error message to the master communication unit. The master communication unit resends the custom package to the slave communication unit if it receives the error information or does not receive any feedback information within the preset time period.

Abstract: A data processing method is applied to a digital interface, which includes: reading data cached by a data source, where the data source includes a video source and an auxiliary data source; outputting video data, if the video data cached by the video source is not empty, where when the video data is output, corresponding position marks are at start and end positions of a frame structure of the video data and at start and end positions of a row structure of the video data; and outputting auxiliary data, if the video data cached by the video source is empty, the auxiliary data cached by the auxiliary data source is not empty and the frame structure or the row structure of the video data has been output, where when the auxiliary data is output, corresponding position marks are at a start position and an end position of the auxiliary data.

Abstract: A serializer includes: an I2C controller, an I2C command analysis circuit, a system control circuit, a low-speed data transmission circuit, a high-speed data conversion circuit, a low-speed data processing circuit, a parallel-serial conversion bidirectional circuit, a serial-parallel conversion circuit, a protocol analysis circuit, a video data processing circuit and an I2C receiver. The serializer can receive the external control command from the external controller through the I2C controller, and can also receive the external control command and the internal control command through the parallel-serial conversion bidirectional circuit. In addition, the serializer can also receive the video data from the external video source through the serial-parallel conversion circuit, and receive the audio data from the external source through the I2C receiver. Therefore, the serializer in the present disclosure can be applied to both two application scenarios, which is more flexible in application.

Abstract: An FEC codec module is provided. Code elements, i.e., code words of forward error correction code, are added to the data code stream of each transmission link through the codec module, so that accurate error determination and automatic error correction may be realized at the receiving end. The interleaving process is performed on multi-link data to prevent the occurrence of continuous burst errors in the data link in a transmission process, and the error correction capability of FEC is utilized to improve the data transmission efficiency and anti-interference ability of the system.

Abstract: A serializer includes: an I2C controller, an I2C command analysis circuit, a system control circuit, a low-speed data transmission circuit, a high-speed data conversion circuit, a low-speed data processing circuit, a parallel-serial conversion bidirectional circuit, a serial-parallel conversion circuit, a protocol analysis circuit, a video data processing circuit and an I2C receiver. The serializer can receive the external control command from the external controller through the I2C controller, and can also receive the external control command and the internal control command through the parallel-serial conversion bidirectional circuit. In addition, the serializer can also receive the video data from the external video source through the serial-parallel conversion circuit, and receive the audio data from the external source through the I2C receiver. Therefore, the serializer in the present disclosure can be applied to both two application scenarios, which is more flexible in application.

Abstract: A method and an apparatus for data processing are provided. In the method and apparatus, compressed image data including N pieces of compressed image slice data each composed of invalid and valid data is received; when storing the N pieces of compressed image slice data into a memory, writing of a piece of compressed image slice data corresponding to the invalid data is stopped on detecting that a preset amount of invalid data has been continuously stored in the memory; and the piece of compressed image slice data in the memory is read, and an image slice is obtained by decoding valid data in the piece of compressed image slice data.

Abstract: A matrix switcher is provided. A code rate of an ultra-high-definition video signal is reduced on the premise that the quality of the ultra-high-definition video signal is not affected through performing a Color Space Conversion (CSC) process and/or a Digital Stream Compression (DSC) process on the ultra-high-definition video signal at the transmitting side chip, thereby reducing a bandwidth required in conversion, switch and transmission of the ultra-high-definition video signal. A matrix switch chip with a low cost and general performance is used. Then, a corresponding DSC data decompression process and/or CSC process are performed at the receiving side to recover the performance of the ultra-high-definition video signal.

Abstract: A chip is provided, which includes a first receiving module, a protocol logic module, a color space conversion module, a compression module and a transmitting module. The first receiving module is configured to receive a digital video signal. The protocol logic module is configured to perform protocol unpacking on the digital video signal to obtain a video code stream. The color space conversion module is configured to perform color space conversion on the video code stream. The compression module is configured to perform lossless compression on the video code stream obtained by the color space conversion. The transmitting module is configured to transmit the video code stream obtained by the lossless compression.

Abstract: A matrix switcher is provided. A code rate of an ultra-high-definition video signal is reduced on the premise that the quality of the ultra-high-definition video signal is not affected through performing a Color Space Conversion (CSC) process and/or a Digital Stream Compression (DSC) process on the ultra-high-definition video signal at the transmitting side chip, thereby reducing a bandwidth required in conversion, switch and transmission of the ultra-high-definition video signal. A matrix switch chip with a low cost and general performance is used. Then, a corresponding DSC data decompression process and/or CSC process are performed at the receiving side to recover the performance of the ultra-high-definition video signal.