发明名称 |
Cellular mobile phone with user-data backup and available time display functionality |
摘要 |
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. |
申请公布号 |
US7171186(B2) |
申请公布日期 |
2007.01.30 |
申请号 |
US20030617773 |
申请日期 |
2003.07.14 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MIYACHI RYOKO;MIKAMI TSUTOMU |
分类号 |
H04B1/16;H04M1/00;G01R31/36;H04B7/26;H04M1/725;H04M1/73;H04W52/02 |
主分类号 |
H04B1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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