P

Inventor

SHENFIELD LEONARD R

7 patents
⚠️ This page may combine multiple inventors who share the name “SHENFIELD LEONARD R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

XEROX CORP

4 patents
US4103338AJul 25, 1978

Self-diagnostic method and apparatus for disk drive

XEROX CORP29 citations78
US4086636AApr 25, 1978

Restore method and apparatus for disk drive

XEROX CORP22 citations78
US4086659AApr 25, 1978

Control system for disk drive

XEROX CORP19 citations70
US4103326AJul 25, 1978

Time-slicing method and apparatus for disk drive

XEROX CORP4 citations61

BRIER TECHNOLOGY INC

2 patents
US5119248AJun 2, 1992

Method of recording servo signals

BRIER TECHNOLOGY INC46 citations89
US5003412AMar 26, 1991

Method and apparatus for positioning a read/write mechanism

BRIER TECHNOLOGY INC46 citations89

DISCTRON INC

1 patent
US4418368ANov 29, 1983

Method and apparatus for positioning a transducer using embedded servo track encoding

DISCTRON INC10 citations65