Information recording/reproducing apparatus including a...

Details Information recording/reproducing apparatus including a... Information recording/reproducing apparatus including a...

2005-05-10

2005-05-10

Huber, Paul W. (Department: 2653)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

By medium defect indicative control signal

C369S047280, C369S053150, C369S053340

Reexamination Certificate

active

06891783

ABSTRACT:
An information recording/reproducing apparatus which is capable of recording information data even if prepits cannot be correctly read from a recording medium. Prepits are detected from a read signal retrieved from a recording medium to generate a prepit detection signal, and a block signal indicative of a recording timing is generated based on the prepit detection signal. In this event, when the prepit detection signal is normal, an information signal is recorded on the recording medium at a recording timing in accordance with the block signal. On the other hand, when the prepit detection signal is defective, the information signal is recorded on the recording medium at a recording timing in accordance with an auxiliary block signal having the same period as a block length, and a fixed phase.

REFERENCES:
patent: 5553042 (1996-09-01), Usui
patent: 0 911 830 (1999-04-01), None
patent: 1 017 058 (2000-07-01), None

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