Television receiver for displaying two pictures of similar or di

Details Television receiver for displaying two pictures of similar or di Television receiver for displaying two pictures of similar or di

1994-12-22

1996-04-02

Groody, James J.

Television

Basic receiver with additional function

For display of additional information

348567, 348568, 348588, 348598, 348556, H04N 545, H04N 546

Patent

active

055045359

ABSTRACT:
A display is to be produced based on video signals having aspect ratios of 4:3 and 16:9. Controller 21 turns on switches SW1 and SW2 so that the digitalized video signal of the first picture is compressed at a rate of 3/8 in the time axis. Simultaneously, the video signal of the second picture is converted digitally, written into memory 14 in synchronization with the first picture video signal, read out based on a delay of 3H/8 from the synchronization with the first picture video signal, and sent to a digital processing circuit 13. The controller 21 controls the digital processing circuit 13 so as to compress in the time axis the video signal of the second picture at a compressing rate of 5/8. Also, the controller 21 controls a vertical amplitude switching signal generator 19 to adjust a vertical deflecting current in a deflecting circuit 18 based on an operation by the audience.

REFERENCES:
patent: 5287188 (1994-02-01), Saeger

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