Direct conversion radio receiving system using digital...

Details Direct conversion radio receiving system using digital... Direct conversion radio receiving system using digital...

2005-07-26

2005-07-26

Chin, Stephen (Department: 2634)

Pulse or digital communications

Receivers

Interference or noise reduction

C455S213000

Reexamination Certificate

active

06922454

ABSTRACT:
A radio receiving system, which receives an input signal in a direct conversion receiving mode through the use of a plurality of cascaded channel filters, each including a complex coefficient filter, to obtain a desired waveform, wherein a center frequency of a preliminary channel filter corresponds more closely with the frequency of the desired waveform than a center frequency of a subsequent channel filter.

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