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Speech interface system and method for control and interaction with applications on a computing system

  • US 8,165,886 B1
  • Filed: 09/29/2008
  • Issued: 04/24/2012
  • Est. Priority Date: 10/04/2007
  • Status: Active Grant
First Claim
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1. A speech processing method, comprising:

  • receiving a speech input representing at least one of a command and a stream of data;

    analyzing the speech for characteristics of a command structure, and if so, entering a command mode;

    in a command mode,analyzing the speech input with respect to a set of at least one grammar representation, to determine an ambiguity and a completeness;

    based in the determined ambiguity and completeness, prompting the user in a contextually appropriate manner for further speech input, to at least one of reduce ambiguity and increase completeness; and

    if the speech input is sufficiently unambiguous and sufficiently complete, generating an output representing the command; and

    in an absence of a characteristic of a command structures;

    treating the speech input as one representative of data; and

    generating an output as a symbolic representation of the speech input,wherein the output generated representing the command is targeted to one of a plurality of respective applications while preserving a respective prior system state, wherein at least one of;

    after command execution, and in dependence on a result thereof, a system state is selectively restored or processing assumed by another application without restoring the prior system state; and

    a command restores one of a previously preserved system state.

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