Music start signals in a magnetic recording/reproducing device
    1.
    发明授权
    Music start signals in a magnetic recording/reproducing device 失效
    在磁记录/再现装置中的音乐起始信号

    公开(公告)号:US4992892A

    公开(公告)日:1991-02-12

    申请号:US5981

    申请日:1987-01-22

    摘要: In a stereo sound digital recording system in which a plurality of tunes or programs are sequentially and digitally recorded on a magnetic tape, the left and right analog input signals are combined and converted to a digital signal. The analog input signals are also applied to a detector which detects the head of the program or tune and which causes to be generated a start identification sub-code signal which is automatically added to the digital signal, before the modulation thereof, and which is recorded on the tape for about nine seconds in the non-sound portion preceding the tune or program. A second sub-code signal, in the form of a program number signal, may also be added to the digital signal, simultaneously with the program start identification sub-code signal, to provide recorded numbers respectively identifying programs which are sequentially recorded on the tape.

    摘要翻译: 在其中多个音调或程序被顺序地和数字地记录在磁带上的立体声数字记录系统中,左和右模拟输入信号被组合并转换成数字信号。 模拟输入信号还被应用于检测程序或调谐的头部并且在其调制之前自动添加到数字信号并且被记录的开始识别子代码信号的检测器 在乐曲或节目之前的非声音部分的磁带上约九秒钟。 以节目编号信号的形式的第二子码信号也可以与节目开始识别子码信号同时被加到数字信号上,以提供分别识别被顺序记录在磁带上的节目的记录号码 。