Power supply voltage supply circuit and disk apparatus

Details Power supply voltage supply circuit and disk apparatus Power supply voltage supply circuit and disk apparatus

2011-04-26

2011-04-26

Young, Wayne R (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

C360S051000, C360S067000

Reexamination Certificate

active

07933086

ABSTRACT:
Aspects of the present embodiment are related to a power supply voltage supply circuit and the disk apparatus that are capable of reducing power consumption in data writing and reading. The power supply voltage supply circuit includes a data processing unit writing data onto a disk medium and/or reading data from the disk medium=having a plurality of zones assigned a cylinder number, a data input-output unit transmitting data to the data processing unit at a transfer rate in accordance with the zones, a power supply voltage supply unit supplying a voltage to the data input-output unit and a control unit controlling the power supply voltage supply unit in order to supply the voltage in accordance with the transfer rate.

REFERENCES:
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patent: 2002/0122265 (2002-09-01), Chambers et al.
patent: 2005/0278463 (2005-12-01), Ando
patent: 2010/0142075 (2010-06-01), Sanghvi
patent: A 7-57395 (1995-03-01), None

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