Write driver circuit for magnetic data storage systems

Dynamic magnetic information storage or retrieval – General recording or reproducing – Specifics of the amplifier

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C360S046000, C327S110000

Reexamination Certificate

active

11091608

ABSTRACT:
A write driver circuit for a magnetic storage medium that communicates with a write head having first and second nodes comprises a first driver circuit with an input and an output that communicates with the first node of the write head. A first charge pump communicates with said input and said output of said first driver circuit and provides additional current to said input of said first driver circuit during a first transition period between current flowing through the write head in a first direction and current flowing through the write head in a second direction. A second driver circuit with an input and an output communicates with the second node of the write head. A second charge pump communicates with said input and said output of said second driver circuit and provides additional current to said input of said second driver circuit during a second transition period between current flowing through the write head in said second direction and current flowing through the write head in said first direction.

REFERENCES:
patent: 4551772 (1985-11-01), Sliger
patent: 5291069 (1994-03-01), Gooding et al.
patent: 5331479 (1994-07-01), Madsen
patent: 5386328 (1995-01-01), Chiou et al.
patent: 5612828 (1997-03-01), Brannon et al.
patent: 5638012 (1997-06-01), Hashimoto et al.
patent: 5757215 (1998-05-01), Schuelke et al.
patent: 5822141 (1998-10-01), Chung et al.
patent: 5869988 (1999-02-01), Jusuf et al.
patent: 5894237 (1999-04-01), Brannon et al.
patent: 6052017 (2000-04-01), Pidutti et al.
patent: 6181496 (2001-01-01), Price, Jr.
patent: 6184727 (2001-02-01), Price, Jr.
patent: 6185057 (2001-02-01), Masenas
patent: 6191643 (2001-02-01), Nayebi et al.
patent: 6201653 (2001-03-01), Contreras et al.
patent: 6218903 (2001-04-01), Hashimoto et al.
patent: 6222695 (2001-04-01), Canario
patent: 6246269 (2001-06-01), Schuler et al.
patent: 6246533 (2001-06-01), Davis et al.
patent: 6259305 (2001-07-01), Pakriswamy
patent: 6297921 (2001-10-01), Price et al.
patent: 6335643 (2002-01-01), Ono
patent: 6366421 (2002-04-01), Teterud
patent: 6373298 (2002-04-01), Teterud et al.
patent: 6396346 (2002-05-01), Ranmuthu et al.
patent: 6404574 (2002-06-01), Barnett
patent: 6429987 (2002-08-01), Cheng
patent: 6456148 (2002-09-01), Patti et al.
patent: 6504666 (2003-01-01), Patti et al.
patent: 6512645 (2003-01-01), Patti et al.
patent: 6512646 (2003-01-01), Leighton et al.
patent: 6532123 (2003-03-01), Veenstra et al.
patent: 6545514 (2003-04-01), Barrow
patent: 6587296 (2003-07-01), Iroaga et al.
patent: 6603623 (2003-08-01), Fontana et al.
patent: 6721115 (2004-04-01), Price, Jr.
patent: 6798591 (2004-09-01), Barnett et al.
patent: 6798598 (2004-09-01), Suzuki et al.
patent: 6813110 (2004-11-01), Leighton et al.
patent: 6831800 (2004-12-01), Ranmuthu
patent: 6879455 (2005-04-01), Ngo et al.
patent: 7006313 (2006-02-01), Ngo
patent: 2002/0186578 (2002-12-01), Kim
patent: 2003/0184901 (2003-10-01), Takahashi
patent: 2005/0190476 (2005-09-01), Wilson et al.
patent: 2006/0097761 (2006-05-01), Stein et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Write driver circuit for magnetic data storage systems 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 driver circuit for magnetic data storage systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Write driver circuit for magnetic data storage systems will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3900990

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.