Image reproduction apparatus performing interfield or interframe

Details Image reproduction apparatus performing interfield or interframe Image reproduction apparatus performing interfield or interframe

1994-07-08

1996-12-10

Metjahic, Safet

Television

Format conversion

Line doublers type

348458, 348441, 348448, H04N 701

Patent

active

055835759

ABSTRACT:
An image reproduction apparatus which converts a sampling frequency from a first frequency to a second frequency, performs interfield interpolation at a third frequency, and converts the sampling frequency from the third frequency to the first frequency, wherein the interfield-interpolation is performed at the first frequency between signals one field apart from each other. The apparatus also converts a number of vertical scanning lines to convert a high definition TV signal of the MUSE format to a signal of NTSC format, sets a scanning period used in the vertical scanning line conversion, and generates a coefficient used in the vertical scanning line conversion.

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patent: 5475442 (1995-12-01), Matsushita et al.
"Muse High Definition TV Transmission System" Yuichi Ninomiya, ed. Institute of Electronics, Information and Communication Engineers, Dec. 1, 1990 46-47.
"5-2-3 MUSE-NTSC Converter", Institute of Television Engineers of Japan Journal, 1991, vol. 45, No. 11, written by Yoshiki Mizutani.

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