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    • 1. 发明公开
    • Method and apparatus for recording and reproducing information on and from optical disc
    • 方法及记录装置和上和从光盘再现信息的
    • EP1811510A3
    • 2009-12-30
    • EP07107152.6
    • 2000-11-02
    • VICTOR COMPANY OF JAPAN, LTD.
    • Ueki, Yasuhiro, c/o Victor Company of Japan, Ltd.
    • G11B7/007
    • G11B7/1267G11B7/00454G11B7/00455G11B7/00456G11B7/0062G11B7/00736G11B7/24038
    • An apparatus for recording and reproducing an information signal on and from an optical multilayer 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. Apparatus informatiion, containing an information piece representative of a name of a manufacturer of the apparatus, is recorded into one of the layers of the disc.
    • 用于记录和信息信号的再现和从光盘上的装置包括一个存储器。 该信息信号被写入到存储器中。 该信息信号从存储器中读出。 一种光学头,基因率响应于所读出的信息信号的激光束,并且激光束施加到光盘上以记录在光盘上读出信息信号。 写入的信息信号到存储器中的测试信号记录在经由光学头其记录位置附近的光盘的位置上。 将测试信号从光盘再现。 再现的测试信号进行评估以评价结果来生成。 的激光束的强度,响应于评估结果被优化。