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Speech recognition accuracy in a multimodal input system

  • US 6,823,308 B2
  • Filed: 02/16/2001
  • Issued: 11/23/2004
  • Est. Priority Date: 02/18/2000
  • Status: Expired due to Fees
First Claim
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1. A speech recognition method for use in a complementary multimodal input system, the method comprising the steps of:

  • receiving a complementary multimodal input comprising digitized speech as a first modality input and data in at least one further modality input;

    identifying at least one feature in the speech and at least one feature in the data in said at least one further modality input; and

    recognising words by comparing identified features in the speech and in the data with states in models for words, said models having states for the recognition of speech, and for words having at least one feature in said at least one further modality associated therewith, said models also having states for the recognition of events in said at least one further modality, wherein said models each comprise an array of states having a dimensionality equal to the number of modes in the received multimodal input that are used in recognising said words.

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