Telecommunications – Transmitter – Noise or interference elimination
Reexamination Certificate
2008-07-01
2008-07-01
Nguyen, Tony T. (Department: 2618)
Telecommunications
Transmitter
Noise or interference elimination
C455S127100, C455S418000, C370S345000, C375S219000
Reexamination Certificate
active
11085080
ABSTRACT:
A plurality of carriers are divided into two systems, one on a low-frequency side and the other on a high-frequency side, a transmitting unit that executes processing for transmitting a signal wirelessly is provided in each of the two systems, and output lines of transmit amplifiers of each of the transmitting units are directly coupled and input to an antenna. A feedback unit on the low-frequency side feeds a low-frequency carrier signal portion contained in the transmit signal back to a distortion compensating unit on the low-frequency side, and a feedback unit on the high-frequency side feeds a high-frequency carrier signal portion contained in the transmit signal back to a distortion compensating unit on the high-frequency side. The distortion compensating units compensate for distortion on the low- and high-frequency sides.
REFERENCES:
patent: 6014374 (2000-01-01), Paneth et al.
patent: 6792252 (2004-09-01), Kimball et al.
patent: 2002-064340 (2002-02-01), None
patent: 2002-135063 (2002-05-01), None
patent: 2002-223131 (2002-08-01), None
patent: 02/17586 (2002-02-01), None
Funakubo Toshiaki
Kodani Mayumi
Bingham & McCutchen LLP
Nguyen Tony T.
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