Race avoidance in disk head read circuit

Details Race avoidance in disk head read circuit Race avoidance in disk head read circuit

2007-07-17

2007-07-17

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

Reexamination Certificate

active

10035401

ABSTRACT:
A read circuit for providing multi-bit disk data to a disk controller in correspondence to analog data from a disk head, includes a low frequency clock generator whose phase is adjustable in response to a detection of the synchronization marker in the analog disk data. A high frequency clock is phase-locked to the output of the disk head, and synchronizes operation of an A/D converter and a bit detector which produces a verified single-bit based on the A/D output. A serial-to-parallel converter converts the single bit output from the bit detector to a parallel output, and the parallel output is latched to multi-bit disk data for use by the disk controller in accordance with a low frequency clock. The low frequency clock is generated by a clock generator from the high frequency clock with a phase that is adjustable in response to the synchronization mark detector.

REFERENCES:
patent: 5293549 (1994-03-01), Ichikawa
patent: 6111712 (2000-08-01), Vishakhadatta et al.
patent: 6178057 (2001-01-01), Kuroda et al.
patent: 6255911 (2001-07-01), Niwa et al.
patent: 6301066 (2001-10-01), Uno
patent: 6522608 (2003-02-01), Kuroda
patent: 6661754 (2003-12-01), Kuroda
patent: 6757228 (2004-06-01), Kuroda

Affiliated with

Also associated with

Rating

Race avoidance in disk head read circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Race avoidance in disk head read circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Race avoidance in disk head read circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3734445