Back to results
US 6,724,556 B2Granted
Single pole voltage bias loop for increased stability
AssigneeTexas Instruments Incorporated
InventorsIndumini W. Ranmuthu, Hong Jiang
Life of this patent
Estimating the term…
Abstract
A differential circuit to read differential data from a disk by a voltage bias includes a read circuit having a read circuit pole to read the differential data from the disk by maintaining the voltage bias and a feedback circuit having a feedback pole to sense deviations in the voltage and to adjust the voltage in response to the deviations. The read circuit pole is separated from the feedback pole in frequency.
Claims6
A differential circuit to read differential data from a disk by a voltage bias on a read head, comprising:
- a read circuit having a read circuit pole to read said differential data from said disk by maintaining said voltage bias on said read head;
- and
- a feedback circuit having a feedback pole to sense deviations in said voltage and to adjust said voltage in response to said deviations,
- wherein said read circuit pole and said feedback pole are separated in frequency.
1 more element
A disk system to read information from a disk, comprising:
- a read/write head to read and write information from said disk;
- a read channel to process said information;
- and
- a differential circuit to read differential data from a disk by a voltage bias, comprising:
- a read circuit having a read circuit pole to read said differential data from said disk by maintaining said voltage;
- and
- a feedback circuit having a feedback pole to sense deviations in said voltage and to adjust said voltage in response to said deviations,
- wherein said read circuit pole and said feedback pole are separated in frequency.
5 more elements
Dependencies are inferred from the claim text.