Television tuner unit having shield housing

Details Television tuner unit having shield housing Television tuner unit having shield housing

1993-03-29

1994-10-11

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

4551882, 455314, 455347, H04B 110

Patent

active

053555325

ABSTRACT:
The present invention relates to a television tuner capable of receiving television broadcasting, CATV and satellite broadcasting. The television tuner includes a double superheterodyne tuner for receiving television signals, having an up-converter, a down-converter and a coupler for coupling the up-converter and down-converter, and the television tuner also includes a BS second mixer portion and a FM demodulator, for receiving signals from a broadcasting satellite. The double superheterodyne tuner, the BS second mixer portion and the FM demodulator are disposed in a housing, a combination of the up-converter and the BS second mixer portion is desiredly separated from the down-converter, the coupler is disposed in a space between the combination and the down-converter, and the FM demodulator is disposed in the remaining space of the housing.

REFERENCES:
patent: 4315333 (1982-02-01), Yamashita et al.
patent: 4569084 (1986-02-01), Takahama
patent: 4661998 (1987-04-01), Yamashita et al.
patent: 5014349 (1991-05-01), Kubo et al.
patent: 5014350 (1991-05-01), Nezu

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