Apparatus and method for controlling inhibition of data...

Details Apparatus and method for controlling inhibition of data... Apparatus and method for controlling inhibition of data...

2007-09-04

2007-09-04

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

C369S053210

Reexamination Certificate

active

10767449

ABSTRACT:
An HDC has first and second terminals. The first terminal is used to output a first write gate signal that dictates writing of data to the disk. The second terminal is used to input a second write gate signal output from an external circuit. The external circuit performs predetermined signal processing on write data in accordance with the first write gate signal output from the first terminal, and outputs the second write gate signal that reflects a signal delay in the circuit. A write inhibition controller incorporated in the HDC monitors the second write gate signal input via the second terminal, and detects, as a write inhibition state, a state in which writing of data to the disk is dictated during a period in which writing of data to the disk should be inhibited.

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Austrian Patent Office Search Report dated Jun. 14, 2004.
Japanese Office Action dated Feb. 14, 2006 for Appln. No. 2003-023874.

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