Bandpass filter with integrated variable gain function using...

Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination

Reexamination Certificate

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C455S296000, C455S334000, C455S067110

Reexamination Certificate

active

07376409

ABSTRACT:
The invention enables a gain adjustment in a receiver to improve signal quality by varying resistance of an input resistor array of a bandpass filter, the array having a plurality of resistors in series with switches that out of the path of the current when the resistors are in use.

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patent: 2005/0118975 (2005-06-01), Ismail

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