Time-base-correction in video recording using a frequency-modula

Details Time-base-correction in video recording using a frequency-modula Time-base-correction in video recording using a frequency-modula

1994-02-28

1996-06-11

Tran, Thai Q.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358323, 358330, 358337, 360 361, 360 331, 348571, 348708, H04N 979

Patent

active

055261299

ABSTRACT:
A circuit for recording and reproducing a TBC reference signal for use in video recording/reproducing systems includes a circuit for adding to a video signal to be recorded a TBC reference signal in which the TBC reference signal has a period adaptively varying corresponding to a synchronizing variation of the video signal; and a circuit for extracting and reproducing a TBC reference signal from a video signal read-out from the recording medium in order to correct time-base errors in the video signal. The circuit corrects time-base errors of the video signal according to a TBC reference signal reproduced along with the video signal from the recording medium during reproduction.

REFERENCES:
patent: 4672470 (1987-06-01), Morimoto et al.
patent: 5062005 (1991-10-01), Kitaura et al.
patent: 5142376 (1992-08-01), Ogura
patent: 5218449 (1993-06-01), Ko et al.
patent: 5231507 (1993-07-01), Sakata et al.
patent: 5412481 (1995-05-01), Ko et al.

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