Frequency filtering circuit for wireless communication devices

Details Frequency filtering circuit for wireless communication devices Frequency filtering circuit for wireless communication devices

2007-08-28

2007-08-28

Ham, Seungsook (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S134000

Reexamination Certificate

active

10972858

ABSTRACT:
Systems and methods are disclosed for a frequency filtering circuit for wireless communications that includes a first resonator circuit comprising a first transmission line and a first capacitor coupled to the first transmission line and a second resonator circuit in parallel to the first resonator circuit, said second resonator circuit comprising a second transmission line and a second capacitor coupled to the second transmission line. A coupling circuit couples the first resonator circuit and the second resonator circuit.

REFERENCES:
patent: 4977041 (1990-12-01), Shiozawa et al.
patent: 5050238 (1991-09-01), Tomizuka
patent: 5164683 (1992-11-01), Shields
patent: 5255324 (1993-10-01), Brewer
patent: 5283539 (1994-02-01), Sadhir et al.
patent: 5299264 (1994-03-01), Schotz et al.
patent: 5339057 (1994-08-01), Rauscher
patent: 5363073 (1994-11-01), Higgins
patent: 5483195 (1996-01-01), Brown
patent: 5491604 (1996-02-01), Nguyen et al.
patent: 5548239 (1996-08-01), Kohama
patent: 5581617 (1996-12-01), Schotz et al.
patent: 5608364 (1997-03-01), Hirai et al.
patent: 5625894 (1997-04-01), Jou
patent: 5656972 (1997-08-01), Norimatsu
patent: 5697087 (1997-12-01), Miya et al.
patent: 5732334 (1998-03-01), Miyake
patent: 5825227 (1998-10-01), Kohama
patent: 5835990 (1998-11-01), Saw et al.
patent: 5880635 (1999-03-01), Satoh
patent: 5955932 (1999-09-01), Nguyen et al.
patent: 5969560 (1999-10-01), Kohama
patent: 5983089 (1999-11-01), Mohwinkel et al.
patent: 6025651 (2000-02-01), Nam
patent: 6075995 (2000-06-01), Jensen
patent: 6118985 (2000-09-01), Kawakyu
patent: 6148220 (2000-11-01), Sharp
patent: 6151509 (2000-11-01), Chorey
patent: 6161003 (2000-12-01), Lo Curto et al.
patent: 6175279 (2001-01-01), Ciccarelli
patent: 6183703 (2001-02-01), Hsu
patent: 6198351 (2001-03-01), Winslow
patent: 6203587 (2001-03-01), Lesieur
patent: 6236281 (2001-05-01), Nguyen et al.
patent: 6262630 (2001-07-01), Eriksson
patent: 6265943 (2001-07-01), Dening
patent: 6265954 (2001-07-01), Krause
patent: 6281755 (2001-08-01), Feld
patent: 6281762 (2001-08-01), Nakao
patent: 6294967 (2001-09-01), Hirai et al.
patent: 6308048 (2001-10-01), Gore et al.
patent: 6326866 (2001-12-01), Sasaki et al.
patent: 6366788 (2002-04-01), Fujioka
patent: 6417730 (2002-07-01), Segallis et al.
patent: 6462622 (2002-10-01), Mori
patent: 6483398 (2002-11-01), Nagamori
patent: 6496684 (2002-12-01), Nakao
patent: 6625050 (2003-09-01), Suwa
patent: 6630372 (2003-10-01), Ball
patent: 6639466 (2003-10-01), Johnson
patent: 6677833 (2004-01-01), Sheen
patent: 6678506 (2004-01-01), Dolman
patent: 6683512 (2004-01-01), Nakamata et al.
patent: 6693498 (2004-02-01), Sasabata
patent: 6694129 (2004-02-01), Peterzell
patent: 6696898 (2004-02-01), Ward et al.
patent: 6696903 (2004-02-01), Kawahara et al.
patent: 6720850 (2004-04-01), Sasabata
patent: 6762659 (2004-07-01), Son et al.
patent: 6774718 (2004-08-01), Ichitsubo
patent: 6798287 (2004-09-01), Wu
patent: 6808954 (2004-10-01), Ma et al.
patent: 6822515 (2004-11-01), Ichitsubo
patent: 6833775 (2004-12-01), Buck et al.
patent: 6847262 (2005-01-01), Ichitsubo
patent: 6847269 (2005-01-01), Watanabe et al.
patent: 6911942 (2005-06-01), Fukuda et al.
patent: 6914482 (2005-07-01), Ichitsubo
patent: 7071783 (2006-07-01), Ichitsubo
patent: 2004/0203552 (2004-10-01), Horiuchi et al.
patent: 2005/0179498 (2005-08-01), Tsutsui et al.
patent: 2006/0164188 (2006-07-01), Yamada
patent: 2001053502 (2001-02-01), None
patent: WO 2004049495 (2004-06-01), None
U.S. Appl. No. 10/385,059, filed Feb. 7, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 10/804,737, filed Mar. 18, 2004, Ikuroh Ichitsubo.
U.S. Appl. No. 10/843,409, filed May 10, 2004, Ikuroh Ichitsubo.
U.S. Appl. No. 10/919,850, filed Aug. 16, 2004, Shinsuke Inul.
U.S. Appl. No. 10/938,779, filed Sep. 10, 2004, Ikuroh Ichitsuho.
U.S. Appl. No. 10/972,636, filed Oct. 24, 2004, Kanye Kubota.
U.S. Appl. No. 11/039,687, filed Jan. 19, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/064,261, filed Feb. 24, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/110,249, filed Apr. 20, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/121,288, filed May 2, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/126,667, filed May 11, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/152,308, filed Jun. 14, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/173,741, filed Jul. 2, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/173,965, filed Jul. 2, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/173,968, filed Jul. 2, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/323,763, filed Dec. 30, 2005, Ikuroh Ichitsubo.
U.S. Appl. No. 11/323,788, filed May 12, 2006, Ikuroh Ichitsubo.
U.S. Appl. No. 11/433,896, filed Jul. 14, 2006, Ikuroh Ichitsubo.
U.S. Appl. No. 11/486,465, filed Jul. 14, 2006, Ikuroh Ichitsubo.

Affiliated with

Also associated with

Rating

Frequency filtering circuit for wireless communication devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency filtering circuit for wireless communication devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency filtering circuit for wireless communication devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3842128