Write head demagnetizer

Details Write head demagnetizer Write head demagnetizer

2006-09-12

2006-09-12

Young, Wayne (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

C360S046000, C360S066000, C360S062000, C327S110000, C327S424000

Reexamination Certificate

active

07106536

ABSTRACT:
A demagnetizer for an inductive load having a driver circuit including at least one transistor and a ramp-down voltage source switchably connected to the driver circuit, so that when the ramp-down voltage source is connected to the transistor, it drives the voltage of the transistor below its threshold voltage.

REFERENCES:
patent: 3895270 (1975-07-01), Maddox
patent: 3938011 (1976-02-01), Littwin
patent: 4221316 (1980-09-01), Jenkins et al.
patent: 4360854 (1982-11-01), Schergen et al.
patent: 4466027 (1984-08-01), Howell et al.
patent: 4551782 (1985-11-01), Seely et al.
patent: 4730230 (1988-03-01), Helfrick
patent: 4821127 (1989-04-01), Soga et al.
patent: 4825331 (1989-04-01), Armond
patent: 4887184 (1989-12-01), Armond
patent: 4970621 (1990-11-01), Gailbreath et al.
patent: 5396369 (1995-03-01), Deland, Jr. et al.
patent: 5499156 (1996-03-01), Bentley
patent: 6038093 (2000-03-01), Takada et al.
patent: 6049184 (2000-04-01), Uggla et al.
patent: 6052017 (2000-04-01), Pidutti et al.
patent: 6166869 (2000-12-01), Pidutti et al.
patent: 6259305 (2001-07-01), Pakriswamy
patent: 6285221 (2001-09-01), Leighton et al.
patent: 6441654 (2002-08-01), Yamamoto
patent: 6545514 (2003-04-01), Barrow
patent: 6650526 (2003-11-01), Preller
patent: 2005/0190467 (2005-09-01), Noguchi
patent: 2005/0190476 (2005-09-01), Wilson et al.
patent: 2005/0200997 (2005-09-01), Cronch et al.

Affiliated with

Also associated with

Rating

Write head demagnetizer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Write head demagnetizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Write head demagnetizer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3599751