发明名称 FIELD-COMPRESSED DIGITAL AUDIO VTR
摘要 A method and apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal in a plurality of successive parallel tracks on a magnetic tape, each track including a first audio section followed by a video section, by converting the audio signal into a PCM digital audio signal; compressing the PCM audio signal; frequency modulating the compressed PCM audio signal to produce an output PCM audio signal; and recording the output PCM audio signal and the video signal in the plurality of successive tracks such that one field interval of the video signal is recorded in the video section of each track and the output PCM audio signal corresponding to one field interval of the video signal is recorded in the audio section of each track and corresponds to the video signal in the leading portion of the previous successive track and the video signal in the trailing portion of the previous alternate track, wherein the audio signal recorded in each track is delayed by a maximum of 1.5 field intervals from the video signal to which it corresponds.
申请公布号 AU9085182(A) 申请公布日期 1983.06.09
申请号 AU19820090851 申请日期 1982.11.24
申请人 SONY CORP. 发明人 NAME NOT GIVEN
分类号 H04N5/91;G11B20/00;H04N5/928 主分类号 H04N5/91
代理机构 代理人
主权项
地址