Sampling point determination method and device, equipment, storage medium and program product

By acquiring the calibration signal of the backlight driver, utilizing the duration difference between the first and second bits of data, determining the data period, and increasing the product within a preset range of sampling ratio, the problem of inaccurate sampling point calculation caused by signal distortion in single-line data transmission is solved, thus achieving accurate data decoding.

CN121191465BActive Publication Date: 2026-06-09GUANGZHOU XIANXIN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU XIANXIN TECHNOLOGY CO LTD
Filing Date
2025-10-31
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In single-line data transmission, signals are easily distorted under scenarios such as long-distance connections, electromagnetic interference suppression, and clock source deviation. Existing sampling point determination methods based on fixed rules and manual presets cannot cope with the dynamic changes in signal distortion, resulting in inaccurate sampling point calculations and thus causing data decoding errors.

Method used

By acquiring the calibration signal of the backlight driver, the data period is determined using the duration difference between the first bit data and the second bit data. The sampling point is then determined by adding the product of the duration of the data period and the sampling ratio within a preset range to the preceding period, ensuring that the sampling point falls within the data period.

Benefits of technology

It improves the accuracy of sampling point calculation, avoids data decoding errors, and ensures accurate data decoding under signal distortion conditions.

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Abstract

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.
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Citation Information

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