P

Inventor

HARSHBERGER JR ROBERT P

US7 patents
⚠️ This page may combine multiple inventors who share the name “HARSHBERGER JR ROBERT P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AMPEX

3 patents
US4232257ANov 4, 1980

Web transport capstan control system

AMPEX20 citations71
US4289999ASep 15, 1981

Digital variable voltage level control circuit with automatic return to neutral

AMPEX2 citations60
US4085354AApr 18, 1978

Tape transport dynamic brake

AMPEX2 citations60

HITACHI GLOBAL STORAGE TECH

2 patents
US7345842B2Mar 18, 2008

Method and system for optimized servo track writing motor current profile to reduce written-in high-frequency repeatable runout track mis-registration

HITACHI GLOBAL STORAGE TECH8 citations71
US7133244B1Nov 7, 2006

Method and system for optimizing servo track writing motor current profile to reduce written-in high-frequency repeatable runout track mis-registration

HITACHI GLOBAL STORAGE TECH4 citations60

GREYHAWK SYSTEMS INC

1 patent
US4775788AOct 4, 1988

Apparatus for detecting position of a rotating element using a two-grating moire pattern

GREYHAWK SYSTEMS INC14 citations72

GREYHAWK SYSTEMS

1 patent
US4705996ANov 10, 1987

Apparatus for positioning a rotating element

GREYHAWK SYSTEMS10 citations68