Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Patent
1997-04-18
1999-02-09
Young, W. R.
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
369 50, 369 54, G11B 700
Patent
active
058703659
ABSTRACT:
In a control unit, when a digital input audio signal level is equal to and beyond the first given level at a first time, a delay counter starts the counting operation, and when the digital audio signal level is equal to and beyond the second given level at a second time, an inherent delay time is obtained by calculating the difference between the first and second times, wherein the time difference is compared to the predetermined delay time of a delay memory unit to obtain a time lapse, so that a start ID is recorded at a third time decided by the time lapse after the second time, and thus the start ID signal is recorded at an appropriate position coincident with the starting head of the digital audio signal, thereby realizing a high speed search thereof without an omission of a head portion of the digital audio signal when the digital audio signal is reproduced.
REFERENCES:
patent: 4796247 (1989-01-01), Vogelsang
patent: 5023730 (1991-06-01), Sakata et al.
patent: 5311492 (1994-05-01), Tabuchi et al.
Sawada Naoto
Yoshizaki Isao
Matsushita Electric - Industrial Co., Ltd.
Young W. R.
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