Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Patent
1993-10-27
1995-08-01
Urban, Edward F.
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
4551804, 455283, 455345, 455347, H04B 110
Patent
active
054386900
ABSTRACT:
In a tuner for converting antenna input signal into audio signals, tuner circuit components are mounted on a tuner circuit substrate. Of the tuner circuit components, FM wave front end circuit components constituting a high-frequency amplifying circuit, a mixing circuit and a local oscillating circuit are surrounded by a shield case. An antenna jack including an earth tube and a signal terminal insulated from the earth tube is mounted on the tuner circuit substrate. The signal terminal of the antenna jack is connected to an antenna input signal pattern of the tuner circuit substrate. The earth tube of the antenna jack is forced in and supported by a jack attachment plate that is an extension of the shield case.
REFERENCES:
patent: 4271534 (1981-06-01), Takayama
patent: 4291414 (1981-09-01), Kimura
patent: 4555808 (1985-11-01), Fujimoto
patent: 4661998 (1987-04-01), Yamashita et al.
patent: 4689825 (1987-08-01), Geigger et al.
patent: 4691378 (1987-09-01), Kumamoto et al.
patent: 5109542 (1992-04-01), Ecklund
Faile Andrew
Shintom Co., Ltd.
Urban Edward F.
LandOfFree
Tuner circuit substrate having a jack attachment plate electrica does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tuner circuit substrate having a jack attachment plate electrica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tuner circuit substrate having a jack attachment plate electrica will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-739783