Translation and filtering techniques for wireless receivers

Details Translation and filtering techniques for wireless receivers Translation and filtering techniques for wireless receivers

2006-05-15

2009-06-23

Le, Thanh C (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

C455S307000, C455S323000

Reexamination Certificate

active

07551910

ABSTRACT:
Various embodiments are disclosed relating to wireless receivers. According to an example embodiment, a method and apparatus are provided. The method may include receiving an input signal within a first frequency range (e.g., RF). The input signal may include a desired signal and a blocker signal. The method may also include down-converting the input signal to a second frequency range (e.g., IF) that is lower than the first frequency range, separating the blocker signal from desired signal (e.g., at the second frequency range), up-converting the separated blocker signal to the first frequency range (e.g., RF), and subtracting the up-converted blocker signal from the input signal.

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