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Voice recognition process utilizing content addressable memory

  • US 4,797,927 A
  • Filed: 10/30/1985
  • Issued: 01/10/1989
  • Est. Priority Date: 10/30/1985
  • Status: Expired due to Term
First Claim
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1. A voice recognition method comprising:

  • (a) an initializing phase including the steps;

    converting a preset vocabulary list of spoken words to digitized form;

    performing time compression of the digitized words to standardize the length of each word wherein the compressed word has a corresponding digital score;

    formatting a main memory with addresses directly corresponding to each score, the data at each address being the position of the respective word in the vocabulary; and

    (b) wherein the recognition phase includes the steps;

    converting a spoken word to a digitized form;

    performing time compression of the digitized word to standardize the length of each word wherein each compressed word has a corresponding digital score;

    addressing the main memory at the location directly corresponding to the score;

    reading out, from main memory, the position of the word in the vocabulary;

    addressing a vocabulary memory at a memory location corresponding to the position of the word in the vocabulary; and

    reading out a word stored at the vocabulary memory location, corresponding to the word spoken during the recognition phase.

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