Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Patent
1998-02-23
2000-08-01
Tran, Thang V.
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
369 50, G11B 509
Patent
active
060976780
ABSTRACT:
On a record medium, a moving control information to control a moving speed of a record medium when recording the record information onto the record medium is recorded by wobbling an information track at a frequency corresponding to the moving control information, and a record control information to control recording or reproducing the record information onto or from the record medium is also recorded in advance by forming a pre-pit on an adjacent track, which is adjacent to the information track. An information recording apparatus for recording the record information onto the record medium is provided with: a pickup device for simultaneously emitting a light beam onto the information track and the adjacent track and then outputting a reproduction signal based on a reflection light from the information track and the adjacent track of the emitted light beam; an information extracting device for extracting the moving control information from the outputted reproduction signal; a moving control device for controlling the moving speed of the record medium on the basis of the extracted moving control information; and a recording device for recording the record information onto the record medium while the record medium is moved at the controlled moving speed.
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Suzuki Toshio
Yoshida Masayoshi
Yoshida Shigetaka
Pioneer Electronic Corporation
Tran Thang V.
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