Video signal recording/reproducing apparatus

Details Video signal recording/reproducing apparatus Video signal recording/reproducing apparatus

1984-11-09

1987-09-01

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358324, 358326, 358330, H04N 979

Patent

active

046912479

ABSTRACT:
A video signal recording/reproducing apparatus for recording and reproducing a video signal onto and from a recording medium with a magnetic head. In this apparatus, the recording chrominance signal processing block is provided with a circuit for producing a continuous oscillation signal having the same frequency, gain and phase with those of a normal color burst signal, a switch for normally passing the chrominance signal and, at a period including the normal color burst signal and longer than the duration of the normal color burst signal, passing the continuous oscillation signal, so that a chrominance signal is obtained at the output of the switch with a duration expanded color burst signal. This chrominance signal is mixed with the frequency converted chrominance signal, and the thus mixed signal is recorded on the recording medium. The duration expanded color burst signal is contracted to the normal duration of color burst signal by a muting circuit in the reproduced chrominance signal processing block.

REFERENCES:
patent: 3018324 (1962-01-01), Leyton et al.

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