Telecommunications – Transmitter – Plural separate transmitters or channels
Reexamination Certificate
2011-04-26
2011-04-26
Phu, Sanh D (Department: 2618)
Telecommunications
Transmitter
Plural separate transmitters or channels
C455S007000, C455S019000, C455S095000, C340S007490, C340S870030, C379S051000
Reexamination Certificate
active
07933565
ABSTRACT:
Embodiments describe improved coupling of power amplifiers to antennas for the transmission of signals, such as OFDM signals. A large number of separate windings are utilized on a primary side, wherein each winding is for a different OFDM tone. Each OFDM tone may be amplified individually and combined as a results of transformer coupling. For example, the secondary side can have a single winding that combines the different OFDM tones.
REFERENCES:
patent: 3731200 (1973-05-01), Schwendeman et al.
patent: 3815030 (1974-06-01), Morrison
patent: 3852530 (1974-12-01), Shen
patent: 4523178 (1985-06-01), Fulhorst
patent: 4580111 (1986-04-01), Swanson
patent: 4677655 (1987-06-01), Hashimoto
patent: 5267297 (1993-11-01), Kawano et al.
patent: 6937096 (2005-08-01), Wight et al.
patent: 6940917 (2005-09-01), Menon et al.
patent: 2005/0206490 (2005-09-01), Castaneda et al.
patent: 2006/0072524 (2006-04-01), Perahia et al.
Zito D et al, “A novel fully integrated antenna switch for 5-6 GHz wireless LAN systems” Signals, Circuits and Systems, 2005, ISSCS 2005, International Symposium on Iasi, Romania Jul. 14-15, 2005, Piscataway, NJ, USA, IEEE, Jul. 14, 2005, pp. 379-382, XP010837483, ISBN: 0-7803-9029-6.
Gregorio F H et al, “Receiver Cancellation of Nonlinear Power Amplifier Distortion in SDMA-OFDM Systems,” Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on Tolouse, France May 14-19, 2006, Piscataway, NJ, USA, IEEE, May 14, 2006, pp. IV-325, XP010931048 ISBN: 1-4244-0469-X Abstract; figure 2.
International Search Report—PCT/US07/073552, International Search Authority—European Patent Office—Mar. 5, 2008.
Written Opinion—PCT/US07/073552, International Search Authority—European Patent Office—Mar. 5, 2008.
Gregorio F H et al: “Receiver Cancellation of Nonlinear Power Amplifier Distortion in SDMA-OFDM Systems” Coustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on.
Tolouse, France May 14-19, 2006, Piscataway, NJ, USA, IEEE, May 14, 2006, pp. IV-325, XP010931048 ISBN: 1-4244-0469-X Abstract; figure 2.
Zito D et al: “A novel fully integrated antenna switch for 5-6 GHz wireless LAN systems” Signals, Circuits and Systems, 2005. ISSCS 2005. International Symposium on IASI, Romania Jul. 14-15, 2005, Piscataway, NJ, USA, IEEE, Jul. 14, 2005, pp. 379-382, XP010837483 ISBN: 0-7803-9029-6 figures 2, 3.
Kristensen Per
Lane Frank
Laroia Rajiv
Minhas Sandip S.
Mobarhan Ramin
Phu Sanh D
Qualcomm Incorporated
LandOfFree
Transformer coupling of antennas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transformer coupling of antennas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transformer coupling of antennas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2705197