专利汇可以提供Digital signal recording method专利检索,专利查询,专利分析的服务。并且PURPOSE: To record a high transmission rate multi-channel audio PCM signal onto a video signal area continuously for a long time by recording a digital signal while applying time compression and area split at recording in recording a digital audio signal by means of a rotary magnetic head scanner.
CONSTITUTION: The modulation demodulation system having less high frequency component and less DC component and/or low frequency component is adopted as a surface layer modulation system, and in case of less high frequency component, multi-channel by compression is applied and in case of less low frequency component, the simultaneous use of the deep layer recording method is attained. A 2-channel analog signal is inputted from an input terminal 1 at recording and prescribed band limit is applied by a filter 3, converted into a PCM signal by an A/D converter 6 and written in a RAM15. The read rate and timing from the RAM15 are controlled to provide compression and delay of time base, and the recording/reproducing time is made long by recording the audio signal also to the video signal area.
COPYRIGHT: (C)1988,JPO&Japio,下面是Digital signal recording method专利的具体信息内容。
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