David R. Rodal

Person

Palo Alto, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Frequency, phase and amplitude control apparatus and method for aco...
- Patent number 5,255,257
- Issue date Oct 19, 1993
- Lasertape Systems, Inc.
- Lawrence M. Bryant
- G02 - OPTICS
Information Patent Grant
Tape transport control system with a feedforward capstan drive to t...
- Patent number 5,248,112
- Issue date Sep 28, 1993
- Ampex Systems Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Circuit for detecting the end of a tape by counting reel revolutions
- Patent number 4,866,547
- Issue date Sep 12, 1989
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for controlling deployment of a tape transport...
- Patent number 4,800,450
- Issue date Jan 24, 1989
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Dynamic brake control for a tape drive system
- Patent number 4,767,970
- Issue date Aug 30, 1988
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary head tape transport servo system having high speed servo loc...
- Patent number 4,751,586
- Issue date Jun 14, 1988
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Adaptive digitally controlled motor drive system and method
- Patent number 4,749,927
- Issue date Jun 7, 1988
- Ampex Corporation
- David Rodal
- G05 - CONTROLLING REGULATING
Information Patent Grant
Reel servo control with resonance damping circuit
- Patent number 4,739,948
- Issue date Apr 26, 1988
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Ambient light insensitive circuit with frequency matching
- Patent number 4,730,108
- Issue date Mar 8, 1988
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Video tape transport servo for variable tape speed control
- Patent number 4,679,098
- Issue date Jul 7, 1987
- Ampex Corporation
- Marshall Williams
- G11 - INFORMATION STORAGE
Information Patent Grant
Synthetic control track signal producing apparatus for video tape m...
- Patent number 4,672,474
- Issue date Jun 9, 1987
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Power fail servo system
- Patent number 4,481,449
- Issue date Nov 6, 1984
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE
Information Patent Grant
Drive circuit for controlling a movable magnetic head
- Patent number 4,169,276
- Issue date Sep 25, 1979
- Ampex Corporation
- David R. Rodal
- G11 - INFORMATION STORAGE

David R. Rodal

Person

Patents Grantslast 30 patents

Frequency, phase and amplitude control apparatus and method for aco...

Tape transport control system with a feedforward capstan drive to t...

Circuit for detecting the end of a tape by counting reel revolutions

Method and apparatus for controlling deployment of a tape transport...

Dynamic brake control for a tape drive system

Rotary head tape transport servo system having high speed servo loc...

Adaptive digitally controlled motor drive system and method

Reel servo control with resonance damping circuit

Ambient light insensitive circuit with frequency matching

Video tape transport servo for variable tape speed control

Synthetic control track signal producing apparatus for video tape m...

Power fail servo system

Drive circuit for controlling a movable magnetic head