Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-10-23
2010-12-21
Eng, George (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S558000, C707S640000, C711S162000
Reexamination Certificate
active
07856231
ABSTRACT:
A mobile communication terminal, and a method of backing up and restoring calibration data thereof disclosed, thereby enabling a terminal to repair damage to radio frequency calibration data. The present invention includes a radio frequency calibration data checking unit comparing a checksum value of radio frequency calibration data stored in an internal terminal memory to a checksum of backup data value stored in a SIM card according when the terminal is turned on, the radio frequency calibration data checking unit determining whether the radio frequency calibration data stored in memory is the same as the data stored on the SIM radio frequency calibration data recovering unit for restoring the radio frequency calibration data from the SIM card.
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patent: 6502044 (2002-12-01), Lane et al.
patent: 6651188 (2003-11-01), Harding et al.
patent: 2005/0191998 (2005-09-01), Onyon et al.
patent: 2006/0020828 (2006-01-01), Aihara et al.
patent: 2006/0135126 (2006-06-01), Lee et al.
patent: 2006/0253668 (2006-11-01), Borowski et al.
patent: 2007/0178937 (2007-08-01), Walters et al.
Eng George
Lee Hong Degerman Kang & Waimey
LG Electronics Inc.
Pitt Bryan
LandOfFree
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