Speech recognition over lossy networks with rejection threshold

Details Speech recognition over lossy networks with rejection threshold Speech recognition over lossy networks with rejection threshold

2007-01-30

2007-01-30

Storm, Donald L. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S228000, C704S233000, C704S240000, C714S750000

Reexamination Certificate

active

10902304

ABSTRACT:
Recognizing a stream of speech received as speech vectors over a lossy communications link includes constructing for a speech recognizer a series of speech vectors from packets received over a lossy packetized transmission link, wherein some of the packets associated with each speech vector are lost or corrupted during transmission. Each constructed speech vector is multi-dimensional and includes associated features. Potentially corrupted features within the speech vector are indicated to the speech recognizer when present. Speech recognition is attempted at the speech recognizer on the speech vectors when corrupted features are present. This recognition may be based only on certain or valid features within each speech vector. Retransmission of a missing or corrupted packet is requested when corrupted values are indicated by the indicating step and when the attempted recognition step fails.

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