Matsushita Electric Industrial Co., Ltd.

Hitoshi Komae

Hiroshi Tanaka

Susumu Yamaguchi

Tadashi Yoshino

Eiji Yamauchi

Tetsuo Ishiwata

Shuzo Hitotsumachi

There is provided a signal processing system for recording and reproducing a video signal and a digital audio signal with a rotary-head VTR and, more particularly, a memory control system which generates a block address and a memory write signal so that the sync signal for reproduced digital data is detected reliably and the digital data is stored in the memory circuit correctly.

Sync signal detection system in a memory system for recording and

A signal processing system for absorbing asynchronism between a video signal and an audio signal which is caused when a PCM audio signal is to be recorded together with the video signal on a helical scan-type tape recorder. When the video signal and the audio signal are recorded on the same track, a recording band width of the audio signal should be narrow. A sample pattern is provided which assures rapid pull-in for both data clock reproduction and carrier reproduction, when the audio signal is modulated by QPSK or when Q-QPSK modulation is used.

Apparatus for recording/reproducing a digital audio signal with a video

Memory system for recording and reproducing block unit data

Growing community of inventors

Osaka, Japan

Hitoshi Komae