Pulse or digital communications – Receivers
Reexamination Certificate
2007-05-29
2007-05-29
Bayard, Emmanuel (Department: 2611)
Pulse or digital communications
Receivers
C375S350000
Reexamination Certificate
active
10461264
ABSTRACT:
An apparatus and method for receiving RF signals in a RF communication system are provided. The apparatus for receiving RF signals comprises a pre-processing unit for bandpass-filtering a signal received through an external antenna with a predetermined bandwidth and extracting a RF input signal having a desired frequency; a mixing unit for mixing the RF input signal provided from the pre-processing unit with a local oscillation signal having the same frequency as the RF input signal and generating a desired baseband signal; a noise-free-signal amplifying unit for shifting the desired baseband signal to a band that is free of effects due to 1/f noise, amplifying the shifted baseband signal, and re-shifting the amplified signal to the baseband; and a baseband processing unit for selecting a desired channel signal from the amplified baseband signal to be provided from the noise-free-signal amplifying unit and amplifying the selected signal.
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Hwang In-chul
Kim Jae-wan
Kim Young-jin
Seo Hae-moon
Bayard Emmanuel
F. Chau & Associates LLC
Samsung Electronics Co,. Ltd.
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