Video-signal time-axis correction apparatus

Details Video-signal time-axis correction apparatus Video-signal time-axis correction apparatus

1986-05-22

1987-06-16

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 19, H04N 5073

Patent

active

046739807

ABSTRACT:
A time-axis of a digital video-signal is converted to a standard time-axis by changing a clock signal contained therein to a standard clock signal and by locking phases of input synchronizing signals contained therein onto the phase of the standard clock signal through a memory for alternately writing and reading the digital video signal at one half of the period of the standard clock signal. As a result, the time-axis correction of the digital video signal is efficiently effected through the memory having a small capacity and a simplified controlling arrangement.

REFERENCES:
patent: 4109276 (1978-08-01), Hopkins, Jr.
patent: 4120000 (1978-10-01), Ninomiya
patent: 4231063 (1980-10-01), Ito
patent: 4445135 (1984-04-01), Heitmann

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