H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/1
H04N 7/12 (2006.01) H03H 21/00 (2006.01) H04N 5/21 (2006.01) H04N 7/00 (2006.01) H04N 7/015 (2006.01) H04N 7/46 (2006.01)
Patent
CA 1296095
ABSTRACT OF THE DISCLOSURE Disclosed is a decoding equalizer of high definition television signal transmission mode, such as MUSE, and a subrange-type A/D converter suitable for the equalizer. The decoding equalizer samples input data in equalization at a frequency twice the sampling frequency of the trunk system, with the equalizing A/D conveter operating at a lower resolution and higher speed than the A/D converter for the trunk system. The subrange-type A/D converter includes A/D converters in multiple stages, with their driving clock frequencies being in certain relationship so that they are used commonly for the A/D conversion of the high definition television signal and the A/D conversion of a test signal for detecting the transmission characteristics.
577859
Iwadate Yuichi
Ninomiya Yuichi
Kirby Eades Gale Baker
Nippon Hoso Hyokai
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