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US 4,897,739 AGranted
Multi-channel recording apparatus using a plurality of heads in turn
AssigneeCanon Kabushiki Kaisha
InventorsMasahide Hasegawa, Mitsuhiro Otokawa, Hidetoshi Matsuoka, Noritsugu Hirata
Life of this patent
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Abstract
A multi-channel recording apparatus in which n rotary heads (n is 3 or higher integer) are arranged on the outer peripheral edge of a drum in evenly spaced relation, and a tape-shaped recording medium is trained round the drum over an angular range of at least 360.degree..times.(1-1/n), while recording (n-1) channels of a signal on the recording medium by using the (n-1) of the n heads which are simultaneously tracing on the medium.
Claims6
A multi-channel recording apparatus comprising:
- (a) a cylinder member having n rotary heads (where n is an integer of not less than 3) on its outer peripheral surface to rotate with a phase difference of (360/n).degree. from each other;
- (b) a tape guide member training a tape-shaped recording medium around said cylinder member over an angular range of not less than (360(n-1)/n).degree.;
- (c) means for inputting (n-1) channels of a signal;
- and
- (d) recording means including supply means capable of supplying the inputted signals of (n-1) channels to the (n-1) of said n heads which are tracing on said recording medium, said supply means including (n-1) switching means for circulating supply of said signals of (n-1) channels to each of said n heads.
2 more elements
A multi-channel recording apparatus comprising:
- (a) n rotary recording heads (where n is an integer of not less than 3) for rotating with a phase difference of (360/n).degree. from each other;
- (b) input means for inputting (n-1) channels of a video signal;
- (c) timing control means arranged to receive said (n-1) channels of the video signal, for outputting (n-1) channels of a video signal whose vertical synchronizing signals are shifted 1/(n-1) of the vertical synchronizing period from each other;
- (d) recording means including (n-1) switching means for respectively supplying said (n-1) channels of the video signal outputted from said timing control means to each of said n rotary recording heads in turn.
1 more element
Dependencies are inferred from the claim text.