发明名称 Method of and arrangement for obtaining prerecorded digital music cassettes.
摘要 <p>The invention relates to a method of and an arrangement for recording a digital audio signal on a recording medium (20'), the digital audio signal being reproduced from a master medium (7) and stored in a digital storage medium (10, 90, 90') at a specific first bit rate , after which it is read from the digital storage medium and recorded on the recording medium at a second bit rate. The digital audio signal in the form of a first digital information signal comprising channel words of n data bits is stored in a track (Ta.i) on the master medium. This signal is converted in an n-m demodulator (9, 15), the n-bit channel words being converted into m-bit information words, where n &gt; m. After this the signal is stored in the digital storage medium (90, 90') as the second digital information signal. After read out from the storage medium (90,90') the second digital information signal is converted into a third digital signal, which substantially corresponds to the first digital information signal, in an m-n modulator (11, 36), in which the m-bit information words are reconverted into n-bit channel words. This enables the storage capacity of the digital storage medium to be reduced. &lt;IMAGE&gt;</p>
申请公布号 EP0455293(A1) 申请公布日期 1991.11.06
申请号 EP19910200989 申请日期 1991.04.25
申请人 POLYGRAM INTERNATIONAL HOLDING B.V. 发明人 DUURLAND, JOZEF MARIA;ROERING, JOHANNES JACOBUS
分类号 G11B5/86;G11B15/02;G11B20/10;G11B27/032 主分类号 G11B5/86
代理机构 代理人
主权项
地址