Multi-tuner receivers with cross talk reduction

Details Multi-tuner receivers with cross talk reduction Multi-tuner receivers with cross talk reduction

2006-04-25

2006-04-25

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S126000, C333S129000, C333S132000

Reexamination Certificate

active

07034632

ABSTRACT:
Multi-tuner receivers with cross talk reduction are disclosed. In one embodiment, a multi-tuner receiver with cross talk reduction includes a low noise amplifier, a set of interstage filters and a set of corresponding tuners. In an alternative embodiment, a multi-tuner receiver with cross talk reduction includes a passive splitter, a set of interstage filters and a set of corresponding tuners. The interstage filters can be low-pass, high-pass or band-pass filters depending on the particular frequency range of interest. Typical embodiments can have two or three tuners, however, the invention applies to multi-receiver tuners with more than three tuners. The multi-tuner receivers can be used within television, cable set top boxes and other devices that receive multiple video signals.

REFERENCES:
patent: 5291125 (1994-03-01), Tsui et al.
patent: 5953429 (1999-09-01), Wakai et al.
patent: 6504867 (2003-01-01), Efstathiou
patent: 6819274 (2004-11-01), Krone et al.

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