Wireless communications system with reduced sideband noise...

Details Wireless communications system with reduced sideband noise... Wireless communications system with reduced sideband noise...

2006-11-04

2010-06-08

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Transceivers

Loopback mode

C375S224000, C375S226000, C455S073000, C379S003000

Reexamination Certificate

active

07733949

ABSTRACT:
A wireless communications system is provided with reduced sideband noise and carrier leakage. In the system, at least one transmitter modulates at least one input signal with a first carrier to generate a modulated output signal, and at least one receiver receives the modulated output signal and demodulates the same with a second carrier to generate at least one demodulated output signal. The first and second carriers are at different frequencies, such that the sideband noise and carrier leakage generated by different sources can be distinguished.

REFERENCES:
patent: 2003/0171110 (2003-09-01), Shi et al.
patent: 2003/0206603 (2003-11-01), Husted
patent: 2006/0034356 (2006-02-01), Fechtel
International Preliminary Report on Patentability dated Jun. 11, 2008 cited in PCT/US2006/044728.

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