Time base correcting device

Details Time base correcting device Time base correcting device

1992-06-26

1994-08-02

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358326, 358337, A04N 989

Patent

active

053350774

ABSTRACT:
A time base correcting device inputs a video signal including a sync. signal and a burst signal, produces an error signal representing a phase difference between a clock signal synchronized with the sync. signal and the burst signal, writes the video signal into the memory in synchronism with the clock signal having a phase thereof adjusted in accordance with the error signal, produces an interpolation signal to interpolate a plurality of adjacent error signals along a time base and controls the readout from the memory by the error signals and the interpolation signal. In this manner, it attains time base correction, particularly velocity error correction with high accuracy.

REFERENCES:
patent: 4709276 (1987-11-01), Yoshinaka
patent: 4766495 (1988-08-01), Koboyashi et al.
patent: 4780770 (1988-10-01), Wagner
patent: 4802026 (1989-01-01), Kaneko et al.
patent: 5128747 (1992-07-01), Isnardi et al.
patent: 5161032 (1992-11-01), Kobayashi et al.

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