Splicing-point detection apparatus and method

Details Splicing-point detection apparatus and method Splicing-point detection apparatus and method

1980-07-15

1982-05-25

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Record editing

360 27, G11B 2702

Patent

active

043319858

ABSTRACT:
A method and apparatus are provided for detecting a splicing point in a magnetic medium on which a sequence of normally periodic control signals have been recorded. The sequence of control signals is reproduced and a periodic anticipative signal is generated which has an anticipated phase relationship with expected control signals reproduced from the magnetic medium. The phase relationship between the actually reproduced control signals and the anticipative signals is detected and a splicing point is indicated when the detected phase relationship between these two signals deviates by more than a predetermined amount from the anticipated phase relationship.

REFERENCES:
patent: 3050105 (1962-08-01), Dolby
patent: 4037260 (1977-07-01), Busby, Jr. et al.
patent: 4234896 (1980-11-01), Onishi et al.

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