Invention Grant
- Patent Title: Electric device and operation method
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Application No.: US15811974Application Date: 2017-11-14
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Publication No.: US10171134B2Publication Date: 2019-01-01
- Inventor: Takaya Suto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP2016-237827 20161207
- Main IPC: H04B5/00
- IPC: H04B5/00 ; H05B33/08 ; H05B37/02 ; H04N1/00

Abstract:
If RF intensity is strong, an excessive voltage may be generated in an NFC IC to destroy the IC. Thus, an inexpensive arrangement for preventing the NFC IC from being destroyed is required. According to an embodiment of this invention, an electric device for performing short distance wireless communication with a mobile terminal by induced power from the mobile terminal has the following arrangement. That is, the arrangement includes an antenna configured to generate the induced power by an RF signal from the mobile terminal, an element configured to drop a peak voltage generated by the induced power, a circuit driven by the dropped voltage and configured to perform the short distance wireless communication, and a light emission element driven by the dropped voltage and configured to emit light.
Public/Granted literature
- US20180159597A1 ELECTRIC DEVICE AND OPERATION METHOD Public/Granted day:2018-06-07
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