Hands-free voice dialing for portable and remote devices
First Claim
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1. An improved speech recognition system comprising:
- an automatic speech recognizer that implements at least one constrainable search algorithm;
a dynamic constraint builder associated with a user device and configured to construct constraint data learned through observing operation of said user device;
said automatic speech recognizer being configured to access said constraint data and to constrain said search algorithm.
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Abstract
Dynamically constructed grammar-constraints and frequency or statistics-based constraints are used to constrain the speech recognizer and to optionally rescore the output to improve recognition accuracy. The recognition system is well adapted for hands-free operation of portable devices, such as for voice dialing operations.
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Citations
33 Claims
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1. An improved speech recognition system comprising:
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an automatic speech recognizer that implements at least one constrainable search algorithm;
a dynamic constraint builder associated with a user device and configured to construct constraint data learned through observing operation of said user device;
said automatic speech recognizer being configured to access said constraint data and to constrain said search algorithm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An improved speech recognition system comprising:
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a first recognizer operating under a first set of constraints;
a second recognizer operating under a second set of constraints that differ from said first set;
a decision mechanism to select at least one most probable output candidate from at least one of said first and second recognizers. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification