Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-06-06
2006-06-06
Vo, Nguyen T. (Department: 2685)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S126000, C455S127200, C455S522000
Reexamination Certificate
active
07058425
ABSTRACT:
Baseband signal generator107outputs a transmission baseband signal with a coefficient for setting antenna directivity multiplied and a gain control signal to transmit power amplifier114and transmit power amplifier114amplifies the transmission baseband signal with a gain corresponding to the gain control signal and transmits the signal from antenna102. ATT118attenuates the output signal of amplifier114according to the gain control signal, amplitude/phase comparator110calculates amplitude and phase errors between the attenuated signal with a frequency equalized by frequency conversion sections120and121and the input signal of amplifier114and phase/amplitude correction section108corrects the transmission baseband signal and gain control signal so as to eliminate the errors. This makes it possible to correct the amplitude and phase shifts of the transmission signal during a communication with other apparatuses and reduce the size and cost of the apparatus.
REFERENCES:
patent: 3900823 (1975-08-01), Sokal et al.
patent: 5001675 (1991-03-01), Woodward
patent: 5768694 (1998-06-01), Kumagai
patent: 5774797 (1998-06-01), Kawano et al.
patent: 6058318 (2000-05-01), Kobayakawa et al.
patent: 6275685 (2001-08-01), Wessel et al.
patent: 2003/0186725 (2003-10-01), Miya
patent: 0731556 (1996-09-01), None
patent: 05183359 (1993-07-01), None
patent: 5235648 (1993-09-01), None
patent: 5084884 (1993-11-01), None
patent: 7264082 (1995-10-01), None
patent: 8242263 (1996-09-01), None
patent: 9023125 (1997-01-01), None
patent: 10041769 (1998-02-01), None
patent: 10170633 (1998-06-01), None
patent: 10336149 (1998-12-01), None
patent: 11046180 (1999-02-01), None
patent: 00078072 (2000-03-01), None
Japanese Office Action dated Jun. 1, 2004 with English translation.
PCT International Search Report dated Aug. 8, 2000.
Le Nhan T.
Stevens Davis Miller & Mosher LLP
Vo Nguyen T.
LandOfFree
Communication apparatus and communication method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Communication apparatus and communication method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communication apparatus and communication method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3694486