Reducing local oscillation leakage in a radio frequency...

Details Reducing local oscillation leakage in a radio frequency... Reducing local oscillation leakage in a radio frequency...

2003-12-19

2009-11-03

Vuong, Quochien B (Department: 2618)

Telecommunications

Transmitter

Noise or interference elimination

C455S118000, C455S127100, C375S296000

Reexamination Certificate

active

07613433

ABSTRACT:
A method for reducing LO leakage in a radio frequency transmitter begins by producing analog outbound signals from digital outbound signals that represent transmit data. The processing continues by amplifying the analog outbound signals to produce amplified analog outbound signals. The process then continues by mixing the amplified analog outbound signals with a local oscillation to produce mixed signals having an LO leakage component. The processing then continues by attenuating the mixed signals having the LO leakage component to produce mixed signals having reduced LO leakage.

REFERENCES:
patent: 4882767 (1989-11-01), Machida et al.
patent: 5001773 (1991-03-01), White
patent: 5307512 (1994-04-01), Mitzlaff
patent: 5313658 (1994-05-01), Nakamura
patent: 6154640 (2000-11-01), Itoh et al.
patent: 6154641 (2000-11-01), Zhang
patent: 6397044 (2002-05-01), Nash et al.
patent: 6614854 (2003-09-01), Chow et al.
patent: 6917803 (2005-07-01), Hata

Affiliated with

Also associated with

Rating

Reducing local oscillation leakage in a radio frequency... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reducing local oscillation leakage in a radio frequency..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reducing local oscillation leakage in a radio frequency... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4135863