发明名称 Information signal recording disc recorded with an end signal for selectively preventing unwanted access to predetermined recorded information and disc reproducing apparatus therefor
摘要 An information signal recording disc comprises a first recorded region in which an information signal at least including a video signal is recorded, and a second recorded region in which an end signal is intermittently recorded. The end signal is used to forcibly and automatically return a reproducing element of a disc reproducing apparatus from a playing position to a rest position. The second recorded region is provided at a position prior to the first recorded region in a direction of a reproducing sequence of the recorded signals on the information signal recording disc. The disc reproducing apparatus comprises a detecting circuit for detecting the reproduced end signal, and a controller. The controller controls the detecting circuit so that the detecting circuit is made substantially inoperative in a state where the disc reproducing apparatus is coupled to an external device having a discriminating function.
申请公布号 US4695904(A) 申请公布日期 1987.09.22
申请号 US19850728308 申请日期 1985.04.29
申请人 VICTOR COMPANY OF JAPAN, LTD. 发明人 SHINYAGAITO, TATSUYA;KURAMOTO, TERUMASA;MACHIDA, TOYOTAKA;SAITO, KIKUJI;SHICHIJO, SHUNICHI;YAMAGISHI, TOORU;KOBAYASHI, YOSHINAO;ISHII, KAZUYOSHI;HIRATA, ATSUMI
分类号 G11B23/36;G09B5/06;G11B20/10;G11B21/08;G11B21/12;G11B23/28;G11B27/10;G11B27/30;G11B27/36;H04N5/76;(IPC1-7):G11B7/00 主分类号 G11B23/36
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