Rotary recording medium reproducing apparatus for reproducing pr

Details Rotary recording medium reproducing apparatus for reproducing pr Rotary recording medium reproducing apparatus for reproducing pr

1984-05-11

1987-04-21

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

360 48, 369 59, H04N 576

Patent

active

046601007

ABSTRACT:
A rotary recording medium reproducing apparatus comprises a reproducing circuit for picking up and reproducing pre-recorded signals from a rotary recording medium on which digital recorded tracks and analog recorded tracks coexist, a first reproducing circuit for reproducing a composite video signal having a horizontal scanning frequency of a predetermined television system from signals which are reproduced from the analog recorded tracks, among reproduced signals from the reproducing circuit, a second reproducing circuit for demodulating and reproducing original information signals from signals which are reproduced from the digital recorded tracks, among the reproduced signals from the reproducing circuit, an oscillator circuit for generating a signal having a frequency which is a natural number multiple of the horizontal scanning frequency of the predetermined television system, a servo circuit for rotating a motor which rotates the rotary recording medium, in synchronism with the output signal of the oscillator circuit, and a master clock signal generating circuit for supplying to the second reproducing circuit a signal which is obtained by frequency-multiplying the output signal of the oscillator circuit, as a master clock signal.

REFERENCES:
patent: 4476499 (1984-10-01), Kanamaru et al.
patent: 4513327 (1985-04-01), Takahashi et al.

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