Automatic baud rate detection

Details Automatic baud rate detection Automatic baud rate detection

1997-08-29

2000-06-06

Chin, Stephen

Pulse or digital communications

Testing

Data rate

370232, 370233, 370234, H04B 1700

Patent

active

060728272

ABSTRACT:
A method of automatic baud rate detection disclosed includes use of low cost hardware to detect framing errors, detect actual transitions in a serial transmission, and calculate transitions in the character received. A current baud rate is taken as being correct, too low, or too high as a function of a comparison between actual transitions and calculated transitions in combination with detection of framing errors. A binary search among conventional baud rates establishes a correct baud rate for a low cost automatic baud rate detection receiving device within three "sign on" character presentations.

REFERENCES:
patent: 5490209 (1996-02-01), Kennedy et al.
patent: 5627858 (1997-05-01), Mak et al.
patent: 5631925 (1997-05-01), Koenzen
patent: 5923705 (1999-07-01), Willkie et al.

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