Cellular mobile phone with user-data backup and available...

Details Cellular mobile phone with user-data backup and available... Cellular mobile phone with user-data backup and available...

2007-01-30

2007-01-30

Urban, Edward F. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S343200, C455S343400, C455S574000, C320S134000, C320S136000, C379S433080, C379S413000

Reexamination Certificate

active

10617773

ABSTRACT:
Data which indicates remaining capacity of a battery in terms of the terminal voltage of the battery is updated by a control unit when necessary, whereby available capacity of the battery is accurately calculated regardless of the extent of deterioration of the battery. In addition to the battery's calculated available capacity, a radio-wave receiving condition and a temperature detected by a temperature detection unit are also taken into consideration to accurately calculate and display an available time. Moreover, the control unit performs the entire process of backing up user data into a non-volatile internal memory (flash memory), which reduces power consumption required for the backup process, resulting in a longer available time.

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