System and method for auto baud rate detection in asynchronous serial communication
US7333536B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2003 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Nov 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0262
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A microcontroller with embedded software for automatically detecting a baud rate of an asynchronous serial bit stream during an initial set up phase of a microcontroller. The microcontroller is configured to receive a data set from a transmitter and includes a transition detector for identifying bit transitions in the data set. The microcontroller includes a timer triggered by the transition detector that is measures the time interval between two predefined bit transitions, a storage element for registering the measured time interval, and a look up table that provides defines baud rates relative to various time intervals that can be accessed to determine a nearest baud rate value corresponding to the registered time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.