TV FM receiver for multimedia applications

Details TV FM receiver for multimedia applications TV FM receiver for multimedia applications

1997-01-07

2000-09-26

Nguyen, Lee

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551912, 4551932, 455302, 334 1, 334 15, 334 47, 348552, 348729, H04B 118

Patent

active

061252697

ABSTRACT:
A receiver for receiving both first-type reception signals, for example TV signals, and second-type reception signals, for example, FM-radio signals. The receiver may be used in multimedia applications. In the receiver, a reception signal is fed via an input section RFI-L, RFA-L, BPF-L to a mixer MIX-L. To obtain a relatively good performance, a band-pass filter BPF-L in the input section can be tuned through a frequency band, in which reception signals of both the first and the second type are present. The filter characteristics of the band-pass filter BPF-L are switched in accordance with the type of reception signal desired. For example, switching provides a passband which is substantially narrower for FM reception than for TV reception.

REFERENCES:
patent: 3903487 (1975-09-01), Maier
patent: 3980957 (1976-09-01), Putzer
patent: 4905306 (1990-02-01), Anderson
patent: 5148280 (1992-09-01), Wignot et al.
patent: 5148420 (1992-09-01), Yamamuro
patent: 5532760 (1996-07-01), Inoue

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