Invention Grant
US09098789B2 RFID communication circuit for an electronic device and corresponding methods
有权
用于电子设备的RFID通信电路及相应的方法
- Patent Title: RFID communication circuit for an electronic device and corresponding methods
- Patent Title (中): 用于电子设备的RFID通信电路及相应的方法
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Application No.: US13759406Application Date: 2013-02-05
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Publication No.: US09098789B2Publication Date: 2015-08-04
- Inventor: Hong Zhao , Eric L. Krenz , Pavel A. Shostak
- Applicant: Google Technology Holdings LLC
- Applicant Address: US CA Mountain View
- Assignee: Google Technology Holdings LLC
- Current Assignee: Google Technology Holdings LLC
- Current Assignee Address: US CA Mountain View
- Agency: Faegre Baker Daniels LLP
- Main IPC: H04Q5/22
- IPC: H04Q5/22 ; G06K19/07 ; H04B1/18 ; H04B1/3805
Abstract:
An electronic device (200) includes a single antenna (211), a communication circuit (202), and a RFID circuit (207). A switch (212) selectively couples the single antenna to one of the communication circuit or the RFID circuit. For example, the RFID circuit can be coupled to the single antenna when the electronic device is OFF, and the communication circuit can be coupled to the single antenna when the electronic device is ON. Accordingly, RFID information can be received from an RFID communication device when the electronic device is OFF. When the electronic device is ON, an interrupt can cause the switch to connect the RFID circuit to the single antenna, sometimes only for less than a predetermined duration.
Public/Granted literature
- US20140218177A1 RFID COMMUNICATION CIRCUIT FOR AN ELECTRONIC DEVICE AND CORRESPONDING METHODS Public/Granted day:2014-08-07
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