Transmission system for an aspect-area-ratio position ID signal

Details Transmission system for an aspect-area-ratio position ID signal Transmission system for an aspect-area-ratio position ID signal

1995-08-08

1997-04-01

Peng, John K.

Television

Nonpictorial data packet in television format

348445, 348474, 348478, H04N 700, H04N 701, H04N 7087

Patent

active

056171471

ABSTRACT:
When a picture having a different aspect ratio is displayed, a portion to be cut on the picture can be set properly. In a video signal transmission system in which a pulse signal is superimposed upon a video signal in a predetermined horizontal line within a vertical blanking period thereof and then transmitted, when an aspect ratio of a picture displayed on the basis of a video signal is different from an aspect ratio of a picture screen of a monitor receiver, an information instructing a portion, which is not displayed on the picture screen due to a difference between the two aspect ratios, is superimposed upon a predetermined horizontal line within the vertical blanking period as a pulse signal.

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