Telecommunications – Transmitter – Including tuning
Reexamination Certificate
2005-01-25
2005-01-25
Trost, William (Department: 2745)
Telecommunications
Transmitter
Including tuning
C455S126000, C455S164200, C455S232100, C375S295000, C375S316000, C330S075000
Reexamination Certificate
active
06847807
ABSTRACT:
A modulator receives an I-phase transmission data signal and a Q-phase transmission data signal, which have been spread-spectrum processed, and modulates an intermediate frequency signal in accordance with the data signals, an IF-AGC amplifier amplifies the output of the modulator, the gain of the IF-AGC amplifier being controlled in accordance with a gain control signal, an up-converter increases the output of the IF-AGC amplifier to a propagation frequency, the gain of the up-converter being controlled in accordance with a control signal.
REFERENCES:
patent: 5107225 (1992-04-01), Wheatley et al.
patent: 5193223 (1993-03-01), Walczak et al.
patent: 5222104 (1993-06-01), Medendorp
patent: 5283536 (1994-02-01), Wheatlely, III et al.
patent: 5287555 (1994-02-01), Wilson et al.
patent: 5307512 (1994-04-01), Mitzlaff
patent: 5471654 (1995-11-01), Okazaki et al.
patent: 5548826 (1996-08-01), Sayers
patent: 5862460 (1999-01-01), Rich
patent: 5926749 (1999-07-01), Igarashi et al.
patent: 5982824 (1999-11-01), Ann
patent: 6118987 (2000-09-01), Hiramatsu et al.
patent: 6127890 (2000-10-01), Shimomura et al.
patent: 6169463 (2001-01-01), Mohindra et al.
patent: 6242976 (2001-06-01), Yuen et al.
patent: 6480477 (2002-11-01), Treadaway et al.
patent: 6510309 (2003-01-01), Thompson et al.
patent: 0 740 422 (1996-10-01), None
patent: 2317 285 (1998-03-01), None
patent: 4-14902 (1992-01-01), None
patent: 9-270649 (1997-10-01), None
patent: 11-8564 (1999-01-01), None
Negus, K. J. et al., “RFICs for Reduced Size, Cost and Power Consumption in Handheld Wireless Transceivers,” Universal Personal communications, 1993, Personal Communications: Gateway to the International conference on Ottawa, Ont., Canada, 12-15. 1993, New York, NY USA, IEEE, Oct. 12, 1993, pp. 919-925.
D'Agosta Stephen
Kabushiki Kaisha Toshiba
Trost William
LandOfFree
Transmission circuit and radio transmission apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission circuit and radio transmission apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission circuit and radio transmission apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3403494