Field recognition circuit

Details Field recognition circuit Field recognition circuit

1981-08-11

1983-06-07

Orsino, Jr., Joseph A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 92, 358152, 358154, H04N 504, H04N 508, H04N 958

Patent

active

043873960

ABSTRACT:
An apparatus is provided for synchronizing left-and right-eye images and for providing a composite video signal for a stereoscopic television system. The synchronization operation at a field-by-field rate is assured by detecting the phase-difference between a first vertical sync pulse which is derived from the vertical sync signal which is sampled by a horizontal sync signal and a second vertical sync pulse which is constantly delayed from the vertical sync signal of the composite video signal. As a result, the left eye image is always associated with the left eye lens of the viewer and the right eye image is always associated with the right eye lens of the viewer.

REFERENCES:
patent: 4145713 (1979-03-01), White
patent: 4258389 (1981-03-01), Sakamoto

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