Samsung patents chip that swaps bad data symbols for training
This patent describes a semiconductor device that creates a specific data pattern to help other chips calibrate their connections. It works by generating a stream of random data and automatically replacing certain bit patterns that are considered 'invalid' with different, valid symbols. This ensures the receiving chip gets a clean, usable signal for testing and alignment.
In the filing’s own words
A semiconductor device includes a sequence data generator, which is configured to generate sequence data on a plurality of data lines, and a symbol changer. The symbol changer is configured to generate a training pattern from the sequence data by replacing, for each of the plurality of data lines, each occurrence of a bitstream within the sequence data that has a predetermined symbol with an alternative symbol. The sequence data generator may include a sequence generator, which is configured to generate a pseudo random binary sequence (PRBS), based on a seed value for each clock cycle.
What exactly they claim (claim 1)
1. A semiconductor device, comprising: a sequence data generator configured to generate sequence data; a symbol changer configured to generate a training pattern from the sequence data by replacing each occurrence of a bitstream within the sequence data that has a predetermined symbol with an alternative symbol; and a driver configured to output the training pattern to an external semiconductor device, wherein the predetermined symbol corresponds to an invalid symbol for a modulation scheme of the driver.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- Semiconductor device
- Patent number
- US12731073B2
- Application number
- 18054176
- Filed
- Nov 10, 2022
- Granted
- Sep 8, 2026
- Inventors
- 5
- Claims
- 19
Classified under
G06N 20/00 Physics & computingMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.