Cellular phone and method of operating the same

Details Cellular phone and method of operating the same Cellular phone and method of operating the same

2008-03-25

2008-03-25

Wimer, Michael C. (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S846000, C343S861000, C455S575700

Reexamination Certificate

active

11184949

ABSTRACT:
A cellular phone covering a plurality of frequency bands, includes (a) an antenna, (b) a high-frequency circuit, (c) an antenna-matching circuit electrically connecting in series between the antenna and the high-frequency circuit, and (d) a first unit which varies a ground length in accordance with a frequency band in which the cellular phone makes communication with others, the ground length being defined as a length of a ground area for the antenna-matching circuit.

REFERENCES:
patent: 4992799 (1991-02-01), Garay
patent: 5561437 (1996-10-01), Phillips et al.
patent: 5995052 (1999-11-01), Sadler et al.
patent: 2002/0190913 (2002-12-01), Kuck
patent: 0548975 (1993-06-01), None
patent: 0622864 (1994-11-01), None
patent: 2257569 (1993-01-01), None
patent: 6-314920 (1994-11-01), None
patent: 7-283631 (1995-10-01), None
patent: 8-331001 (1996-12-01), None
patent: 11-186832 (1999-07-01), None
patent: 2000-138522 (2000-05-01), None
patent: 2001-339474 (2001-12-01), None
patent: 2002-64329 (2002-02-01), None
patent: 2002-076719 (2002-03-01), None
patent: 2002-512463 (2002-04-01), None
patent: 2006-166260 (2006-06-01), None

Affiliated with

Also associated with

Rating

Cellular phone and method of operating the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cellular phone and method of operating the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cellular phone and method of operating the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3933070