Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Patent
1986-08-06
1988-05-03
Masinick, Michael A.
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
455193, 455300, 455347, 455349, H04B 110
Patent
active
047425695
ABSTRACT:
In a tuning circuit for AM receiver, tuning coils, oscillation coils and capacitance elements of an antenna tuning circuit, a radio frequency amplifier circuit, and a local oscillator circuit are accommodated in discrete shield casings for high frequency coils; and the discrete shield casings are disposed in a row and united with each other in the form of blocks, thereby eliminating the necessity to effect tracking adjustment.
REFERENCES:
patent: 3643168 (1972-02-01), Manicki
patent: 3723882 (1973-03-01), Carlson
patent: 3783420 (1974-01-01), Bastian
Ikegame Takashi
Okamoto Yusuke
Takada Noboru
Torakawa Makoto
Yokoyama Hajime
Masinick Michael A.
Matsushita Electrical Industrial Co. Ltd.
Toko Inc.
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