05353376 is referenced by 290 patents and cites 2 patents.

Systems and methods for improved speech acquisition are disclosed including a plurality of linearly arrayed sensors to detect spoken input and to output signals in response thereto, a beamformer connected to the sensors to cancel a preselected noise portion of the signals to thereby produce a processed signal, and a speech recognition system to recognize the processed signal and to respond thereto. The beamformer may also include an adaptive filter with enable/disable circuitry for selectively training the adaptive filter a predetermined period of time. A highpass filter may also be used to filter a preselected noise portion of the sensed signals before the signals are forwarded to the beamformer. The speech recognition system may include a speaker independent base which is able to be adapted by a predetermined amount of training by a speaker, and which system includes a voice dialer or a speech coder for telecommunication.

Title
System and method for improved speech acquisition for hands-free voice telecommunication in a noisy environment
Application Number
7/854161
Publication Number
5353376
Application Date
March 20, 1992
Publication Date
October 4, 1994
Inventor
Vishu R Viswanathan
Dallas
TX, US
Sang G Oh
Richardson
TX, US
Agent
Richard L Donaldson
Leo N Heiting
W Daniel Swayze
Assignee
Texas Instruments Incorporated
TX, US
IPC
G10L 5/06
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