Recording apparatus with recording section power supply control

Details Recording apparatus with recording section power supply control Recording apparatus with recording section power supply control

1990-07-03

1992-03-10

McElheny, Jr., Donald

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

358342, 369 50, H04N 5781

Patent

active

050953915

ABSTRACT:
A recording apparatus using a disc-shaped recording medium provided with a marker member on the recording medium for detection of the rotation phase thereof includes a phase detector for detecting the marker member while the recording medium is rotating; a delay circuit for delaying the output of the phase detector for a given period of time; a recording circuit for recording signals of the disc-shaped recording medium by means of a magnetic head; and a control circuit which is arranged to supply a current to the recording circuit at the timing of the output of the phase detector and to cause the recording circuit to perform recording at the timing of the output of the delay circuit.

REFERENCES:
patent: 4531164 (1985-07-01), Maeda et al.
patent: 4760452 (1988-07-01), Kaneko et al.
patent: 4802020 (1989-01-01), Miyake et al.
patent: 4825302 (1989-04-01), Tezuka et al.
patent: 4858031 (1989-08-01), Fukuta

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