Invention Grant
- Patent Title: Modified connection establishment for reducing power consumption in near field communication systems
- Patent Title (中): 改进的连接建立,用于降低近场通信系统的功耗
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Application No.: US13664263Application Date: 2012-10-30
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Publication No.: US08903312B2Publication Date: 2014-12-02
- Inventor: Anssi Kaleva Haverinen
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Mahamedi Paradice LLP
- Main IPC: H04B5/00
- IPC: H04B5/00

Abstract:
A method and apparatus for reducing power consumption associated with establishing a connection in a near field communication system is disclosed. According to some embodiments, when requesting an active mode NFC connection, the initiator device can selectively extend transmission of its NFC carrier signal by an extended time period after transmitting a request frame to the target device. The extended time period, a value for which is embedded into the request frame, allows the target device additional time to stabilize its clock signal and transmit its own NFC carrier signal back to the initiator device. As a result, the initiator device may enable its NFC clock generator according to the value of the extended time period.
Public/Granted literature
- US20130137370A1 MODIFIED CONNECTION ESTABLISHMENT FOR REDUCING POWER CONSUMPTION IN NEAR FIELD COMMUNICATION SYSTEMS Public/Granted day:2013-05-30
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