Patent ID: RE41042

Claim:
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.