Apparatus and method for controlling recording and reproduction in digital video cassette tape recorder

  • US RE38,868 E1
  • Filed: 07/20/1998
  • Issued: 11/08/2005
  • Est. Priority Date: 04/16/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for controlling recording and reproducing in a video cassette tape recorder comprising:

  • frame extracting means for buffering compressed digital data input thereto, and extracting specific data for a speed-varied reproduction from said compressed digital data;

    frame recording position controlling means for calculating a number of tracks for recording the compressed digital data and selectively outputting a buffered output, said extracted specific data from said frame extracting means, and a multiplexing timing signal;

    frame position information recording means for recording position information of specific tracks for the speed-varied reproduction and index information on a magnetic tape, based on said multiplexing timing signal;

    digital recording means for recording digital signals including said digital data and said index information on said magnetic tape;

    digital reproduction means for reproducing the digital signals recorded on the magnetic tape;

    frame position information detecting means for detecting said position information of the specific tracks for the speed-varied reproducing and said index information;

    tape speed controlling means for controlling the speed of a capstan motor, based on said detected index information and said position information of the specific tracks; and

    frame removing means for receiving an output from the digital reproduction means and removing unnecessary bit streams from the specific data.

View all claims

    Thank you for your feedback