Apparatus for high-density minimal crosstalk recording and repro

Details Apparatus for high-density minimal crosstalk recording and repro Apparatus for high-density minimal crosstalk recording and repro

1986-07-30

1989-03-07

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358330, 360 22, 360 30, 360 61, H04N 5782, H04N 979

Patent

active

048111198

ABSTRACT:
A magnetic tape recording/reproducing apparatus for recording video signals on a magnetic tape without providing a guard band between each two adjacent signal tracks. The apparatus comprises a first switching circuit for exchanging 2-channel component signals every nH period to obtain two combined signals each composed of the 2-channel signals which alternate every nH period, two modulators for modulating the two combined signals, a head section having two pairs of rotarty magnetic heads for recording the modulated signals on the magnetic tape so that each two adjacent blocks contain a same channel component signal and for reproducing the recorded signals from the magnetic tape, two demodulators for demodulating the reproduced signals, and a second switching circuit for exchanging the demodulated signals every nH to obtain the 2-channel component signals. With this arrangement, the recording density is remarkably increased and the cross talk interference hardly occur.

REFERENCES:
patent: 4177481 (1979-12-01), Yamagiwa et al.
Broadcast Engineering (Japan), vol. 35, No. 10, 1982 pp. 64-81.

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