Magnetic recording/reproducing apparatus utilizing phase compara

Details Magnetic recording/reproducing apparatus utilizing phase compara Magnetic recording/reproducing apparatus utilizing phase compara

1987-08-31

1989-04-25

McElheny, Jr., Donald

Facsimile and static presentation processing

Facsimile

Recording apparatus

358330, H04N 989

Patent

active

048252999

ABSTRACT:
A magnetic video recording/reproducing apparatus of high resolution, which excludes a phase difference introduced to a signal due to difference in characteristics between a low frequency conversion system and a high frequency conversion system by inserting an additonal signal to both systems. The additional signal is recorded together with the video signal and a phase difference is detected. The detected phase difference is utilized for regulating the phase difference in the respective frequency systems.

REFERENCES:
patent: 4100567 (1978-07-01), Yoshinaka
patent: 4145705 (1979-03-01), Yoshinaka
patent: 4490749 (1984-12-01), Hirota
patent: 4672470 (1987-06-01), Morimoto et al.
patent: 4704639 (1987-11-01), Yamanishi et al.

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