Invention Grant
- Patent Title: Method, system and apparatus to optimize A4WP wireless charging and NFC co-existence
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Application No.: US14862423Application Date: 2015-09-23
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Publication No.: US10673487B2Publication Date: 2020-06-02
- Inventor: Jie Gao , Songnan Yang , Anand S. Konanur , Xintian Lin , Ulun Karacaoglu
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Spectrum IP Law Group LLC
- Main IPC: H04B5/00
- IPC: H04B5/00 ; H04L12/26 ; H02J7/02 ; H04W4/00 ; H02J50/20 ; H02J50/80 ; H04W4/80

Abstract:
The disclosure relates generally to method, system and apparatus to optimize wireless charging to identify a proximal Near-Field Communication (NFC) tag and prevent damage by a magnetic wireless charging field. The disclosed embodiment provide different methods for NFC tag detection without impacting A4WP wireless charging. In an exemplary method, dedicated NFC reader is used to interleave the NFC and A4WP signals on the same coil. In one implementation the signals are frequency-multiplexed. In another implementation, the signals are time-multiplexed.
Public/Granted literature
- US20170085297A1 METHOD, SYSTEM AND APPARATUS TO OPTIMIZE A4WP WIRELESS CHARGING AND NFC CO-EXISTENCE Public/Granted day:2017-03-23
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