Helical scan video tape recorder for recording video and audio signals on contiguous tracks
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroshi Taniguchi, Osahiko Yano, Chojuro Yamamitsu, Sadafumi Kitamura, Masamitsu Ohtsu
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Abstract
In a magnetic recording and reproducing system of the type wherein a plurality of rotating magnetic heads record the video signal on a magnetic tape as tracks which are inclined at an angle relative to the direction of travel of the magnetic tape, the audio signal is time compressed and recorded by the rotating magnetic heads on tracks contiguous with either or both ends of said video signal recording tracks, whereby even at a considerably low tape transport speed the audio signal may be recorded in a stable manner.
Claims9
A magnetic recording and reproducing system of the type where a plurality of rotating magnetic heads record a television signal comprising video and audio signals on a magnetic medium as sequential discontinuous tracks, characterized in that the wrapping angle of said magnetic medium around a cylinder carrying said plurality of rotating magnetic heads is increased by an angle as compared with the conventional wrapping angle required for recording and reproducing the television signal;
- means for time compressing the audio signal;
- means including at least one of said plurality of rotating magnetic heads for recording the time compressed audio signal on the tracks laid down by said at least one magnetic head and extended by said increase in wrapping angle;
- means including said rotating magnetic heads for reproducing said television signal;
- and means coupled to said reproducing means for time expanding said time compressed audio signal to derive a continuous reproduced audio signal.
Dependencies are inferred from the claim text.