发明授权
- 专利标题： Power supply device and communication system
- 专利标题（中）： 电源装置及通讯系统
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申请号： US10567285申请日： 2003-08-04
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公开(公告)号： US07698574B2公开(公告)日： 2010-04-13
- 发明人: Kenichi Morimoto , Yoshio Nishimoto , Kazuya Iwabayashi , Yoshifumi Maitani , Yusuke Nagano
- 申请人： Kenichi Morimoto , Yoshio Nishimoto , Kazuya Iwabayashi , Yoshifumi Maitani , Yusuke Nagano
- 申请人地址： JP Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JP Osaka
- 代理机构： Renner, Otto, Boisselle & Sklar, LLP
- 国际申请： PCT/JP03/09854 WO 20030804
- 国际公布： WO2005/011990 WO 20050210
- 主分类号： G06F1/32
- IPC分类号： G06F1/32
摘要：
The invention relates to a power supply device and a communication system. The power supply device supplies power to a main device. The communication system is provided with the main device mounting the power supply device therein and an external device connected to the main device. A feature of the invention is to offer a power supply device and a communication system that are capable of being responsive to external signals for returning to a normal operation mode with minimum power consumption in a power-saving operation mode. In the power saving operation mode, a main power supply circuit (60) is turned off and only an auxiliary power supply circuit (50) is operated. In order to detect external signal, the auxiliary power supply circuit (50) supplies power not to an entire interface section (20), but to a ring detection circuit (31), a LAN signal detection circuit (32), a 1284 signal detection circuit (33), a USB signal detection circuit (34), and a panel signal detection circuit (35) that are respectively provided with a minimum functions for detecting external signal.
公开/授权文献
- US20090119525A1 Power Supply Device and Communication System 公开/授权日：2009-05-07
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