System for recording and/or reproducing a video signal

Details System for recording and/or reproducing a video signal System for recording and/or reproducing a video signal

1975-11-07

1978-02-28

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

360 29, H04N 576

Patent

active

040770460

ABSTRACT:
A system for recording and later reproducing video signals on a magnetic recording medium by producing a modulated signal in which the video information is carried primarily on only one sideband and the carrier, which may be suppressed by certain types of modulation is at a frequency within the band occupied by the video signals prior to modulation. The carrier may originally be at a higher frequency and be converted to the aforementioned frequency, which is also within a frequency band that includes the peak reproduction point in the response characteristic of a magnetic recording and reproducing system. In the case of certain types of modulation the carrier is phase-and frequency-controlled to eliminate interference between signals recorded on adjacent tracks on the magnetic medium.

REFERENCES:
patent: 3230306 (1966-01-01), Takayanagi
patent: 3402256 (1968-09-01), Kinjo
patent: 3536860 (1970-10-01), Hodder
patent: 3969755 (1976-07-01), Arimura et al.
patent: 3975759 (1976-08-01), Taniguchi et al.

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