Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-07-29
2009-11-17
Maung, Nay A (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S012100, C455S141000, C455S502000, C455S526000, C342S357490, C342S357490, C342S358000, C370S328000, C370S332000, C370S513000
Reexamination Certificate
active
07620403
ABSTRACT:
A mobile communication device (202) and peer mobile communication devices (204, 206) are capable of direct voice and data communication. The mobile communication device has a reference oscillator (104) which is used for generating operating frequencies, and is subject to frequency errors resulting from manufacturing tolerances, heat, and other error sources. The mobile communication device receives a frequency correction message (506) from a peer mobile communication device that has calibrated its reference oscillator. The frequency correction message contain offset information which is used by the mobile communication device to determine its offset (316) from a nominal frequency (302).
REFERENCES:
patent: 5739786 (1998-04-01), Greenspan et al.
patent: 5841396 (1998-11-01), Krasner
patent: 5940747 (1999-08-01), Grohgans et al.
patent: 6026307 (2000-02-01), Blom et al.
patent: 6041222 (2000-03-01), Horton et al.
patent: 6240276 (2001-05-01), Camp, Jr.
patent: 6671291 (2003-12-01), Soliman
patent: 6741842 (2004-05-01), Goldberg et al.
patent: 6816111 (2004-11-01), Krasner
patent: 6907224 (2005-06-01), Younis
patent: 7050787 (2006-05-01), Caci
patent: 7149197 (2006-12-01), Garahi et al.
patent: 7277049 (2007-10-01), Korneluk et al.
patent: 2003/0078062 (2003-04-01), Burr
patent: 2005/0074036 (2005-04-01), Gorday et al.
patent: WO02/065669 (2002-08-01), None
patent: WO02/065669 (2002-08-01), None
Anderson Bobby D.
Haverkamp Kristi A.
Klug Keith M.
Korneluk Jose E.
Segerson Charles H.
Maung Nay A
Motorola Inc.
Tran Paul P
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