Television receiver tuner high pass input filter with CB trap

Details Television receiver tuner high pass input filter with CB trap Television receiver tuner high pass input filter with CB trap

1989-04-14

1990-09-11

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

455191, 455286, 455290, 333175, H04B 116

Patent

active

049567101

ABSTRACT:
The present invention is for a highpass input circuit for a television receiver having an additional trap at a predetermined frequency, e.g. CB frequencies. A M derived constant K high pass filter having an intermediate pi configured filter section is provided with an additional inductor in the shunt leg of the pi section for resonating with the bridge capacitance of the pi section and forming an additional trap at the predetermined frequency. The additional inductor is physically formed by an electrically conductive path etched on a printed circuit board.

REFERENCES:
patent: 2726334 (1955-12-01), Chelgren et al.
patent: 2912656 (1959-11-01), Waring
patent: 3111636 (1963-11-01), Ma
patent: 3450994 (1969-06-01), Arntsen et al.
patent: 3559089 (1971-01-01), Wolf et al.
patent: 3852670 (1974-12-01), Ma
patent: 4153887 (1979-05-01), Poppa
patent: 4335404 (1982-06-01), Martinson, Jr.
patent: 4361909 (1982-11-01), Theriault
patent: 4395778 (1983-07-01), Osada et al.
patent: 4414688 (1983-11-01), Hendricks et al.
patent: 4584544 (1986-04-01), Hettiger
patent: 4601062 (1986-07-01), Hettiger
patent: 4612571 (1986-09-01), Moon
patent: 4642691 (1987-02-01), Sakarya
patent: 4710974 (1987-12-01), Kupfer
patent: 4748667 (1988-05-01), Farmer et al.
patent: 4756024 (1988-07-01), Kupfer
patent: 4760325 (1988-07-01), Suzuki et al.
patent: 4771332 (1989-09-01), Metoki
patent: 4876739 (1989-10-01), Ma et al.
patent: 4888568 (1989-12-01), Kawaguchi

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