Quasi-parallel IF with shared saw filter

Details Quasi-parallel IF with shared saw filter Quasi-parallel IF with shared saw filter

1990-02-26

1993-01-05

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358197, H04N 560

Patent

active

051776138

ABSTRACT:
A low audio buzz television signal processing system. Both the video IF signal and the sound IF signal are filtered by a shared SAW filter without requiring an additional surface acoustic wave (SAW) device for IF sound processing. The required Nyquist slope of the video signal is provided by a contour filter for applying a Nyquist slope characteristic.

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Television Gijutsu issue of Sep. 1985, pp. 49-55, along with English language translation.
New PIF+SIF IC For Improved Picture and Sound Quality by Hideo Imaizumi, Yuji Kimoto, Takeshi Ogiwara, Yoshiyuki Tsukahara, IEEE Transactions on Consumer Electronics, vol. 35, No. 3, Aug. 1989, pp. 406-414.

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