Frequency correcting method for cellular phone terminal

Details Frequency correcting method for cellular phone terminal Frequency correcting method for cellular phone terminal

2006-05-16

2006-05-16

Vo, Nguyen T. (Department: 2685)

Telecommunications

Transmitter and receiver at separate stations

With control signal

C455S192200, C455S260000

Reexamination Certificate

active

07046968

ABSTRACT:
When a cellular phone terminal is powered on, it immediately receives a reference signal (non-modulated reference frequency signal for correcting a crystal oscillation circuit) for correcting the reception frequency of a radio signal transmitted from a base station at all times, and corrects the error of the reception frequency on the basis of the reference signal received. After the error of the reception frequency is corrected, the cellular phone terminal makes normal communications with the base station.

REFERENCES:
patent: 3918003 (1975-11-01), Seidel
patent: 4932072 (1990-06-01), Toko
patent: 5065451 (1991-11-01), Leveque
patent: 5115515 (1992-05-01), Yamamoto et al.
patent: 5479136 (1995-12-01), Endo et al.
patent: 5493710 (1996-02-01), Takahara et al.
patent: 5740525 (1998-04-01), Spears
patent: 5848376 (1998-12-01), Steiner et al.
patent: 5852641 (1998-12-01), Hagmanns
patent: 5940744 (1999-08-01), Uda
patent: 6081702 (2000-06-01), Serfaty et al.
patent: 6349196 (2002-02-01), Bourzeix
patent: 6625434 (2003-09-01), Arimitsu et al.
patent: 6704556 (2004-03-01), Eaton et al.
patent: 2 273 405 (1994-06-01), None
patent: 61-251240 (1986-11-01), None
patent: 04-150423 (1992-05-01), None
patent: 5-167468 (1993-07-01), None
patent: 07-307645 (1995-11-01), None
patent: 9-326752 (1997-12-01), None
patent: 10-41786 (1998-02-01), None
patent: 2000-115056 (2000-04-01), None
patent: 2000-196516 (2000-07-01), None
patent: 2000-209128 (2000-07-01), None
patent: 2000-286910 (2000-10-01), None

Affiliated with

Also associated with

Rating

Frequency correcting method for cellular phone terminal 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 correcting method for cellular phone terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency correcting method for cellular phone terminal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3562985