Invention Grant
US09313713B2 Method for discovering a plurality of NFC-B devices by a NFC-B reader and corresponding NFC-B reader
有权
用于通过NFC-B读取器和对应的NFC-B读取器发现多个NFC-B设备的方法
- Patent Title: Method for discovering a plurality of NFC-B devices by a NFC-B reader and corresponding NFC-B reader
- Patent Title (中): 用于通过NFC-B读取器和对应的NFC-B读取器发现多个NFC-B设备的方法
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Application No.: US14706079Application Date: 2015-05-07
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Publication No.: US09313713B2Publication Date: 2016-04-12
- Inventor: Jafer Hussain
- Applicant: STMicroelectronics International N.V.—Netherlands
- Applicant Address: NL Amsterdam
- Assignee: STMicroelectronics International N.V.
- Current Assignee: STMicroelectronics International N.V.
- Current Assignee Address: NL Amsterdam
- Agency: Slater & Matsil, L.L.P.
- Priority: FR1454112 20140507
- Main IPC: H04B5/00
- IPC: H04B5/00 ; H04W40/24 ; H04W52/02 ; G06K7/10 ; H04W74/08 ; H04W8/00 ; H04W4/00 ; H04W84/18
Abstract:
A discovered NFC-B listen mode device is put to SLEEP state only when there are one or more NFC-B listen mode devices yet to be discovered. An optimal value for the number of time slots indicated in a command is computed based on a combination of whether an empty time slot was detected and/or collision was detected and/or an NFC-B listen mode device was discovered in a discovery cycle. The compliance with the NFC Forum Activity Specification allows the direct activation of an NFC-B listen mode device, and thus speeds up the data transfer phase and consumes much less power.
Public/Granted literature
- US20150327151A1 Method for Discovering a Plurality of NFC-B Devices by a NFC-B Reader and Corresponding NFC-B Reader Public/Granted day:2015-11-12
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