Invention Grant
- Patent Title: Electronic circuit for contactless tag, and contactless tag
- Patent Title (中): 用于非接触式标签的电子电路和非接触式标签
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Application No.: US10811790Application Date: 2004-03-29
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Publication No.: US07142117B2Publication Date: 2006-11-28
- Inventor: Shinichiro Watanabe
- Applicant: Shinichiro Watanabe
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Hogan & Hartson LLP
- Priority: JP2003-098276 20030401
- Main IPC: G08B13/14
- IPC: G08B13/14

Abstract:
An electronic circuit for a contactless tag includes a rectification circuit that rectifies an induced electromotive force caused by bringing an antenna coil into close proximity to a reader/writer to generate a rectified voltage and a secondary battery. A charging/discharging circuit is provided that charges according to the rectified voltage and discharges the secondary battery.
Public/Granted literature
- US20040227002A1 Electronic circuit for contactless tag, and contactless tag Public/Granted day:2004-11-18
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