Internet based speech recognition system with dynamic grammars

  • US 7,725,320 B2
  • Filed: 04/09/2007
  • Issued: 05/25/2010
  • Est. Priority Date: 11/12/1999
  • Status: Expired due to Term
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First Claim
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1. A World-Wide Web (WWW) accessible natural language computing system comprising:

  • a speech recognition engine configured to distribute speech processing operations between a client device and a server device for processing an utterance for a speech based query;

    said server device being configured to generate a recognized speech query using a grammar accessible to said server device;

    wherein the server device transfers data representing speech using a hypertext transfer protocol (HTTP) and a format which includes one or more NULL characters for denoting an end of a speech data stream, the one or more NULL characters being inserted into the speech data stream after other NULL characters are removed from the speech data stream;

    a natural language routine executing on the server device and configured to process said recognized speech query to generate a natural language result in real-time;

    an Internet accessible page coupled to the server device and having a list of items, wherein content for at least some of said list of items identified on said Internet accessible page is selectable by a user based on said natural language result;

    a database coupled to the server device for storing answers which correspond to said content for said list of items on said Internet accessible page;

    wherein a grammar used to recognize said speech based query can be varied between utterances and loaded dynamically as needed to recognize utterances associated with said content.

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