Method and apparatus for fast transfer of data in recording and reproducing system
A fast data transfer system capable of eliminating the need to extremely increase the necessary transmission frequency band for the high-density recording and fast revolution rate of data recording and reproducing system has a recording and reproduced signal processor (124) including an encoder/decoder (103), a disk enclosure (108) including a parallel-to-serial converter (104), a record head (114), and a serial-to-parallel converter (119), and a transmission cable (117), and makes recording parallel data transfer from the encoder/decoder (103) to a recording amplifier (109) by shifting the phases of a plurality of recording signals and reproduced parallel data from the serial-to-parallel converter (119) to the encoder/decoder (103) by shifting the phases of a plurality of reproduced signals. The necessary transmission frequency on the transmission cable can be reduced by this parallel data transfer on the transmission cable. In addition, a record timing correction circuit (203) can be provided on a parallel data transfer path.