Method of automatically detecting the baud rate of an input sign

Details Method of automatically detecting the baud rate of an input sign Method of automatically detecting the baud rate of an input sign

1998-02-25

2000-08-01

Pham, Chi H.

Pulse or digital communications

Transceivers

Modems

375377, 379 938, H04B 138, H04L 2300, H04M 1100

Patent

active

06097754&

ABSTRACT:
A method of automatically detecting the baud rate of an input signal and an apparatus using the method. A counter is started upon detecting a first transition of the input signal. The counter is stopped upon detecting a second transition of the input signal. After the counter is stopped, the measured count in the counter represents the duration between the first and second transitions of the input signal. The measured count is compared to a plurality of expected counts to determine which of the plurality of expected counts has a value closest to the measured count. The input signal is sampled using a baud rate based on the expected count having a value closest to the measured count.

REFERENCES:
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patent: 5168493 (1992-12-01), Nelson et al.
patent: 5222081 (1993-06-01), Lewis et al.
patent: 5369682 (1994-11-01), Witsaman et al.
patent: 5490209 (1996-02-01), Kennedy et al.
patent: 5631952 (1997-05-01), O'Barr et al.
patent: 5654983 (1997-08-01), Suaser, Jr.

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