Claims
- 1. A recording apparatus for recording a digital video signal on a magnetic tape, comprising:
- N magnetic heads in two groups attached to a rotary drum at an angular interval of 180 degrees;
- said magnetic tape being wrapped around a peripheral surface of said rotary drum in an angular range where scans of pairs of said N magnetic heads arranged at an angular interval of 180 degrees overlap;
- head interleave means for distributing an input digital video signal to a plurality of channels of a number which is fewer than the number N of said N magnetic heads in which each channel contains two time division multiplexed signals for respective recording by two of said N magnetic heads arranged at an angular interval of 180 degrees;
- a plurality of digital recording processing means of a number less than the number N each of which is connected to a respective one of said channels and includes an encoder of an error correction code; and
- a plurality of memory means of a number which is equal to said number N, a pair of said plurality of memory means being coupled to receive one of said plurality of channels from a respective one of said digital recording processing means and a reading operation from each of said plurality of memory means being executed so as to separate said two time division multiplexed signals into different signals each for connection to a respective one of said two magnetic heads arranged at an angular interval of 180 degrees, so that N recording signals are generated from said plurality of memory means, respectively.
- 2. A recording apparatus according to claim 1 wherein said plurality of memory means comprises a plurality of FIFO memories.
- 3. A reproducing apparatus for reproducing a digital video signal from a magnetic tape, comprising:
- N magnetic heads in two groups attached to a rotary drum at an angular interval of 180 degrees;
- said magnetic tape being wrapped around a peripheral surface of said rotary drum in an angular range where a successive pair of scans of two of said N magnetic heads arranged at an angular interval of 180 degrees overlap;
- a plurality of memory means equal in number to N to which reproduction data from said N magnetic heads is respectively supplied for time-base compressing said reproduction data so as to eliminate a time-base fluctuation of the reproduction data and to eliminate a time-dependent overlap of the reproduction data from pairs of said N magnetic heads arranged at an angular interval of 180 degrees;
- a plurality of switching circuit means of a number which is fewer than said number N of said magnetic heads and each of which synthesizes output data of a pair of said plurality of memory means and forms reproduction data in a respective one of a plurality of channels of a number equal to said number of switching circuit means fewer than said number N, in which each of said channels contains two time division multiplexed reproduction data signals corresponding respectively to reproduction data of two of said N magnetic heads arranged at an angular interval of 180 degrees;
- a plurality of digital reproduction signal processing means of a number equal to said number of switching circuit means fewer than said number N and each including decoders of an error correction code which are coupled to said plurality of switching circuit means, respectively; and
- a deinterleave circuit for combining said plurality of channels each containing two time division multiplexed reproduction data signals from said plurality of digital reproduction signal processing means and corresponding respectively to reproduction data of two of said N magnetic heads arranged at an angular interval of 180 degrees and producing therefrom the digital video signal.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-246794 |
Aug 1991 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 07/932,504 filed Aug. 20, 1992 now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (3)
Number |
Date |
Country |
407046 |
Jan 1991 |
EPX |
3805438 |
Aug 1989 |
DEX |
3936994 |
May 1991 |
DEX |
Continuations (1)
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Number |
Date |
Country |
Parent |
932504 |
Aug 1992 |
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