James Brandon Avery

US Patent:

45945756, Jun 10, 1986

Filed:

Jul 30, 1984

Appl. No.:

6/635979

Inventors:

James M. Avery - Austin TX
Elmer A. Hoyer - Wichita KS

Assignee:

NCR Corporation - Dayton OH

International Classification:

H03M 112

US Classification:

340347AD

Abstract:

A method and implementation apparatus for converting analog signals, such as speech signals, into digital data signals, with improved fidelity by the use of dithering techniques coupled with amplitude clipping and filtering operations.

US Patent:

47193387, Jan 12, 1988

Filed:

Aug 12, 1985

Appl. No.:

6/764903

Inventors:

James M. Avery - Austin TX
Madhu C. Patel - Wichita KS

Assignee:

NCR Corporation - Dayton OH

International Classification:

G06K 500

US Classification:

235380

Abstract:

A portable transaction processing calculator has a keyboard and a display window along with slots for holding at least a pair of credit cards. One of the cards includes storage means therein and is electrically connected with the calculator, and another card has optical or other readable data thereon and readable by optical or other equipment. A selector switch on the calculator selects one of four different operations.

US Patent:

48603570, Aug 22, 1989

Filed:

Aug 5, 1985

Appl. No.:

6/762234

Inventors:

James M. Avery - Austin TX

Assignee:

NCR Corporation - Dayton OH

International Classification:

G10L 908
G10L 708
G06F 15336

US Classification:

381 41

Abstract:

A system for converting known speech segments into machine storable binary signals for the purpose of later attempting a match between a stored signal and an incoming signal using autocorrelation techniques. Through the use of a clipper and a sample and hold register, the system converts an incoming speech signal into a bit stream signal. Two successive groups of bits called frames are stored in separate registers. A bit-by-bit correlation is performed on the bits stored in the separate registers and a counter is indexed as a function of the correlation. A memory is provided for maintaining a record of the counts associated with each speech segment for later attempting computer pattern matching against received unknown speech segments.