Dynamic magnetic information storage or retrieval – Record editing
Patent
1989-01-27
1991-02-12
McElheny, Jr., Donald
Dynamic magnetic information storage or retrieval
Record editing
H04N 5782
Patent
active
049928910
ABSTRACT:
A pair of recording heads are mounted on a rotary cylinder for recording a video signal in slanted tracks on magnetic tape. The recording heads are mounted in a common plane and each has a different azimuthal angle. A pair of reading heads are mounted on the same rotary cylinder for reading the video signal recorded on the magnetic tape. The reading heads are mounted in a plane offset from the plane of the recording heads and have azimuthal angles that match the azimuthal angles of the recording heads. A mixing circuit mixes a component of the video signal ready from the magnetic tape by one of the recording heads with a video signal from a video signal source to generate a mixed video signal. The mixed video signal is returned to one of the recording heads for recordation on the magnetic tape.
REFERENCES:
patent: 4593392 (1986-06-01), Kouyama
patent: 4706135 (1987-11-01), Kojima
patent: 4796105 (1989-01-01), Mawatari
patent: 4858033 (1989-08-01), Chippendale
INPADOC Abstract of Japanese Application No. 62-78978.
Itoh Shigeyuki
Komatsu Keiichi
Masui Hikaru
Ozaki Shinji
Watatani Yoshizumi
Hitachi , Ltd.
McElheny Jr. Donald
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