Membership
Tour
Register
Log in
Charles E. Mendenhall
Follow
Person
Campbell, CA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Digital motor speed controller
Patent number
4,415,844
Issue date
Nov 15, 1983
PRIAM
Charles E. Mendenhall
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Autonomous fault diagnosis for disk drive using an internal micropr...
Patent number
4,268,905
Issue date
May 19, 1981
Sperry Rand Corporation
Donald F. Johann
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Drive power sequencing
Patent number
4,233,666
Issue date
Nov 11, 1980
Sperry Rand Corporation
Per-Erik Walberg
G05 - CONTROLLING REGULATING
Information
Patent Grant
Phase comparator with dual phase detectors
Patent number
4,200,845
Issue date
Apr 29, 1980
Sperry Rand Corporation
Charles E. Mendenhall
G11 - INFORMATION STORAGE
Information
Patent Grant
Adaptive circuit for extracting timing information from a repetitiv...
Patent number
4,189,784
Issue date
Feb 19, 1980
Sperry Rand Corporation
Charles E. Mendenhall
G11 - INFORMATION STORAGE
Information
Patent Grant
Non-linear error signal attenuator for servo system
Patent number
4,096,426
Issue date
Jun 20, 1978
Sperry Rand Corporation
Brian P. Tremaine
G05 - CONTROLLING REGULATING
Information
Patent Grant
Cross coupled demodulator for generating a servo head position erro...
Patent number
4,092,682
Issue date
May 30, 1978
Sperry Rand Corporation
Thomas L. Andrews
G11 - INFORMATION STORAGE
Information
Patent Grant
Dual-mode demodulator for movement of a servo head
Patent number
4,092,683
Issue date
May 30, 1978
Sperry Rand Corporation
Thomas L. Andrews
G11 - INFORMATION STORAGE