发明授权
- 专利标题: Cellular mobile phone with user-data backup and available time display functionality
- 专利标题(中): 手机具有用户数据备份和可用的时间显示功能
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申请号: US10617773申请日: 2003-07-14
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公开(公告)号: US07171186B2公开(公告)日: 2007-01-30
- 发明人: Ryoko Miyachi , Tsutomu Mikami
- 申请人: Ryoko Miyachi , Tsutomu Mikami
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: McDermott Will Emery LLP
- 优先权: JP2002-212441 20020722
- 主分类号: H04B1/16
- IPC分类号: H04B1/16
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.
公开/授权文献
- US20040014489A1 Cellular mobile phone 公开/授权日:2004-01-22