Self-tuning baud rate generator for UART applications
US7062003B2 · kind B2 · utility
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1References
8Claims
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Assignee
Inventor
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Sep 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0262
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention describes a baud rate generator for use in a sampled data system. This generator makes possible the sampling of asynchronous digital input data when its baud rate is not known, and does so without the use of phase-locked loop circuitry. The invention uses a digital counter to count the clock intervals between successive transitions in the digital input data. This process is repeated over a period of time sufficient to assure that recognizable recurring data patterns will occur in the data stream. The smallest interval recorded by the counter is captured and is directly related to the required sampling rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.