Signal processing circuit and communication device using the...

Details Signal processing circuit and communication device using the... Signal processing circuit and communication device using the...

2011-01-25

2011-01-25

Urban, Edward (Department: 2618)

Telecommunications

Transmitter

Frequency conversion

C455S127300, C455S326000, C455S315000, C455S093000, C455S111000, C455S112000

Reexamination Certificate

active

07877065

ABSTRACT:
A signal processing circuit having a modulator having frequency conversion circuits, each having a local oscillator and a mixer. The circuit multiplies a signal having a first frequency and a local oscillation signal from the local oscillator at the mixer to convert the frequency of the first frequency signal to a second frequency, outputs a current format frequency converted signal and a first gain control circuit amplifying the current format frequency converted signals from the frequency conversion circuits by a first gain in accordance with a first control voltage. The circuit also outputs the current format amplified signals and a second gain control circuit connected after the first gain control circuit and having at least one gain control circuit which amplifies a current format amplified signal output from the first gain control circuit by a second gain.

REFERENCES:
patent: 3974460 (1976-08-01), Hongu et al.
patent: 5323123 (1994-06-01), Philippe
patent: 5515014 (1996-05-01), Troutman
patent: 5884154 (1999-03-01), Sano et al.
patent: 5926749 (1999-07-01), Igarashi et al.
patent: 6026286 (2000-02-01), Long
patent: 6040731 (2000-03-01), Chen et al.
patent: 6163198 (2000-12-01), Cargill
patent: 6205325 (2001-03-01), Groe
patent: 6300845 (2001-10-01), Zou
patent: 6333675 (2001-12-01), Saito
patent: 6347221 (2002-02-01), Tsukahara
patent: 6373345 (2002-04-01), Kimppa et al.
patent: 6404263 (2002-06-01), Wang
patent: 6477360 (2002-11-01), Watanabe et al.
patent: 6525606 (2003-02-01), Atkinson
patent: 6559692 (2003-05-01), Kimball et al.
patent: 6563375 (2003-05-01), Khosrowbeygi et al.
patent: 6675000 (2004-01-01), Ichikawa
patent: 6728224 (2004-04-01), Kakizaki et al.
patent: 6788744 (2004-09-01), Hirama
patent: 6850746 (2005-02-01), Lloyd et al.
patent: 6959178 (2005-10-01), Macedo et al.
patent: 7027783 (2006-04-01), Vilhonen et al.
patent: 7098732 (2006-08-01), Dupuie
patent: 7103327 (2006-09-01), Pan
patent: 7107025 (2006-09-01), Khorram
patent: 7116949 (2006-10-01), Irie et al.
patent: 7123899 (2006-10-01), Chen et al.
patent: 7145389 (2006-12-01), Yang et al.
patent: 7187909 (2007-03-01), Lin et al.
patent: 7193466 (2007-03-01), Kim et al.
patent: 7277689 (2007-10-01), Simon
patent: 7280815 (2007-10-01), Pellat et al.
patent: 7324799 (2008-01-01), Vaara
patent: 7333565 (2008-02-01), Oono et al.
patent: 7383034 (2008-06-01), Shima et al.
patent: 7405608 (2008-07-01), Filoramo et al.
patent: 7750749 (2010-07-01), Jones
patent: 2001/0014596 (2001-08-01), Takaki et al.
patent: 2001/0018334 (2001-08-01), Ipek et al.
patent: 2002/0193089 (2002-12-01), Hatcher et al.
patent: 2003/0078016 (2003-04-01), Groe et al.
patent: 2003/0114129 (2003-06-01), Jerng
patent: 2003/0119474 (2003-06-01), Kimura
patent: 2003/0184378 (2003-10-01), Segawa
patent: 2004/0002315 (2004-01-01), Lin
patent: 2004/0092236 (2004-05-01), Irie et al.
patent: 2004/0137862 (2004-07-01), Tanaka et al.
patent: 2004/0176052 (2004-09-01), Vilhonen et al.
patent: 2004/0203553 (2004-10-01), Toyota et al.
patent: 2004/0214533 (2004-10-01), Khorram
patent: 2004/0224658 (2004-11-01), Borremans
patent: 2004/0229589 (2004-11-01), Behzad
patent: 2004/0229592 (2004-11-01), Matsui et al.
patent: 2004/0246051 (2004-12-01), Hsu et al.
patent: 2004/0253936 (2004-12-01), Simon
patent: 2005/0014476 (2005-01-01), Oono et al.
patent: 2005/0032489 (2005-02-01), Boos
patent: 2005/0130619 (2005-06-01), Hanke et al.
patent: 2005/0191976 (2005-09-01), Shakeshaft et al.
patent: 2006/0052071 (2006-03-01), Pan
patent: 2006/0066397 (2006-03-01), Dupuie
patent: 2007/0021076 (2007-01-01), Tanaka et al.
patent: 2 134908 (1990-05-01), None
patent: 5 57917 (1993-07-01), None
patent: 8 186452 (1996-07-01), None
patent: 2000 13159 (2000-01-01), None
patent: 2000 91915 (2000-03-01), None
patent: 2000 196386 (2000-07-01), None
patent: 2003 87067 (2003-03-01), None
patent: 2003 229735 (2003-08-01), None
patent: 2004 512724 (2004-04-01), None

Affiliated with

Also associated with

Rating

Signal processing circuit and communication device using the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal processing circuit and communication device using the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processing circuit and communication device using the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2715153