John C Welch

US Patent:

43190855, Mar 9, 1982

Filed:

Apr 8, 1980

Appl. No.:

6/138646

Inventors:

John R. Welch - Riverton NJ
Marvin B. Herscher - Cherry Hill NJ

Assignee:

Threshold Technology Inc. - Delran NJ

International Classification:

G10L 100

US Classification:

179 1SD

Abstract:

In this speech recognition system the array formed by a timewise sequence of speech signal feature vectors includes digital data at each time slot representing both presence/absence and consistency of occurence.

US Patent:

45861951, Apr 29, 1986

Filed:

Jun 25, 1984

Appl. No.:

6/624442

Inventors:

Martin DeGeorge - Cinnaminson NJ
Hartwig Ruell - Fuerstenfeldbruck, DE
John Welch - Mount Laurel NJ

Assignee:

Siemens Corporate Research & Support, Inc. - Iselin NJ

International Classification:

H04R 300

US Classification:

381 92

Abstract:

A microphone ranging system for providing improved reproduced speech by compensating for the position of a speaker relative to the microphone system. An omnidirectional microphone system with a range finder for determining the distance between the omnidirectional microphone and a speaker is provided. In further embodiments, there are also provided a multiplicity of spaced range finders for determining the exact position of a speaker or speakers relative to a microphone or several microphones. Highly directional microphones are used which are trained on the speaker or speakers and follow them as they move about a room. A tracking system is controlled through signals which originate in a control circuit which is controlled by the range finders.

US Patent:

43364217, Jun 22, 1982

Filed:

Apr 8, 1980

Appl. No.:

6/138643

Inventors:

John R. Welch - Riverton NJ
Sheldon C. Oxenberg - Cherry Hill NJ

Assignee:

Threshold Technology, Inc. - Delran NJ

International Classification:

G10L 100

US Classification:

179 1SD

Abstract:

A speech recognition technique is disclosed for recognizing words that are spoken at speeds that approach the speed of continuous speech. To avoid the cost of a rigorous approach wherein all possible words of stored vocabulary are correlated against each group of speech samples, this invention uses relatively long duration inter-string pauses to detect string boundaries, and relatively short duration inter-segment pauses to determine speech segment boundaries which are used as a limited number of start or end points.

Address:

3626 Players Clb Dr, Southport, NC 28461

VIN:

4T1BK36B67U217550

Make:

TOYOTA

Model:

AVALON

Year:

2007