2results about How to "Avoid decoding errors" patented technology

The present invention provides a method and system for optimizing DS decoding of a high-speed SpaceWire bus, including: a synchronous sampling module, a skew jitter error compensation module, an asynchronous buffer module and a DS decoding module; the synchronous sampling module synchronizes the input DS signal to the system sampling clock after three signal latches, and transmits the signal to the skew jitter error compensation module for data sampling compensation, and transmits the signal to the DS decoding module and the asynchronous buffer module after judging the valid data flag; the asynchronous buffer module shifts the buffer, converts the storage and marks the valid length of the data; the DS decoding module decodes, performs serial shift operations, and outputs data words and control words. The present invention realizes three-level synchronous sampling, reduces the risk of signal competition and risk; the bus has a high rate, and can realize the decoding function of the bus at 200Mbps~400Mbps; sampling compensation for sampling errors caused by DS signal jitter and skew, and at the same time adopts an optimized DS decoding algorithm to solve decoding errors caused by signal jitter and skew.

Embodiments of the present application provide a sampling point determination method, device, equipment, storage medium and program product. A calibration signal of a backlight driver is obtained. The calibration signal includes at least first bit data and second bit data. The duration of the first level period of the first bit data is greater than the duration of the first level period of the second bit data. The first level period of the second bit data is a pre-stage period. The duration of the data period of the first bit data is determined according to the difference between the duration of the first level period of the first bit data and the duration of the first level period of the second bit data. Then, the duration of the data period of the first bit data and the product of any value within the preset range of the sampling ratio are added to the pre-stage period to determine the sampling point of each bit data in the backlight driver. Thus, the sampling point can be ensured to fall in the data period in the case of signal distortion, the calculation accuracy of the sampling point is improved, and data decoding errors are avoided.