Low noise amplifier with multiple inputs and multiple outputs

Details Low noise amplifier with multiple inputs and multiple outputs Low noise amplifier with multiple inputs and multiple outputs

2007-11-19

2010-06-01

Choe, Henry K (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S147000

Reexamination Certificate

active

07728664

ABSTRACT:
Satellite set-top boxes (STB) are increasingly being designed with multiple tuners, making them capable of receiving more than one program at a time. In addition, satellite STBs are increasingly being designed with multiple inputs, to permit reception of additional channels that will not fit within the conventional satellite intermediate frequency (IF) band (950-2150 MHz). Often, the STB must route these multiple inputs to the multiple tuners with some form of switching function, to allow each tuner to receive all channel bands. Accordingly, the invention includes an RFIC with two RF inputs and three RF outputs, and a crossbar switch that can route any input to any output. The two inputs are amplified by low-noise amplifier stages.

REFERENCES:
patent: 4263561 (1981-04-01), Weber
patent: 4683441 (1987-07-01), Naylor
patent: 5724349 (1998-03-01), Cloonan et al.
patent: 7408406 (2008-08-01), Hickman et al.

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