Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2005-11-09
2009-06-09
Neyzari, Ali (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S275300, C369S053100
Reexamination Certificate
active
07545715
ABSTRACT:
An apparatus for recording and reproducing an information signal on and from an optical disc includes a memory. The information signal is written into the memory. The information signal is read out from the memory. An optical head generates a laser beam in response to the readout information signal, and applies the laser beam to the optical disc to record the readout information signal on the optical disc. A test signal is recorded on a position of the optical disc near a recording position thereof via the optical head during the writing of the information signal into the memory. The test signal is reproduced from the optical disc. The reproduced test signal is evaluated to generate an evaluation result An intensity of the laser beam is optimized in response to the evaluation result.
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Neyzari Ali
Victor Company of Japan Ltd.
Woo Louis
LandOfFree
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