Television signal converting apparatus

Details Television signal converting apparatus Television signal converting apparatus

1993-07-16

1994-04-26

Powell, Mark R.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358140, H04N 701

Patent

active

053071565

ABSTRACT:
A television format converting apparatus converts a first television signal based on a predetermined format, which includes a luminance signal component and color signal component, into a second television signal based on other television format of a different aspect ratio, which includes a luminance signal component and color signal component. The first television signal is digitalized and then converted into a digitized second television signal. The digitized second signal is converted an analog signal in synchronization with a frequency of four times of a color sub-carrier frequency, so that hardware structure of the apparatus can be significantly simplified and the exact conversion of television signals can be realized.

REFERENCES:
patent: 4449143 (1984-05-01), Dischert
patent: 4605952 (1986-08-01), Powers
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patent: 4953025 (1990-08-01), Saitoh
patent: 5021870 (1991-06-01), Motoe
patent: 5043811 (1991-08-01), Yasuhiro
patent: 5045939 (1991-09-01), Okayama
patent: 5103308 (1992-04-01), Asano
patent: 5122885 (1992-06-01), Yoshioka

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