Dynamic magnetic information storage or retrieval – Record editing
Patent
1987-03-11
1990-02-13
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
Record editing
358311, 360 7713, G11B 2702
Patent
active
049011669
ABSTRACT:
A method and apparatus for editing video information from one or more video tapes onto a master tape, in which different video tape recorders can be used to produce the master tape, involves the storage of tracking information that was used in recording a segment at a position immediately preceding the desired editing point on the master tape, and also stores tracking information that was used in recording another segment at a position on the master tape some time prior to the segment next preceding the edit point. A difference value between the two stored tracking information signals is detected and compared with a predetermined value, and the comparison result is used to select one of the two stored tracking information signals to control the tracking during recording at the desired editing point, so that small head position detector errors will not accumulate over a number of edit points on the master tape.
REFERENCES:
patent: 4428001 (1984-01-01), Yamamura et al.
patent: 4463391 (1984-07-01), Takano et al.
patent: 4532502 (1985-07-01), Menzes et al.
patent: 4689706 (1987-08-01), O'Gwynn
Eslinger Lewis H.
Maioli Jay H.
Psitos Aristotelis M.
Sony Corporation
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