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Automatic baud rate detection

  • US 5,008,902 A
  • Filed: 01/25/1989
  • Issued: 04/16/1991
  • Est. Priority Date: 01/25/1989
  • Status: Expired due to Term
First Claim
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1. Method for automatically detecting transmission rate of a stream of data, comprising:

  • (a) sampling the data at a rate faster than the highest possible baud rate;

    (b) storing the sampled data in a memory;

    (c) comparing the sampled data to known data;

    (d) determining if a match occurs;

    (e) selecting the matched baud rate if a match occurs;

    (f) recirculating a portion of the sampled data if a match does not occur; and

    (g) repeating steps (a) to (f) until a match occurs.

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