公开(公告)号：US09698872B2

公开(公告)日：2017-07-04

申请号：US13920670

申请日：2013-06-18

Applicant: QUALCOMM Incorporated

Inventor： Anssi Kaleva Haverinen ,  Todd Reynolds ,  Angelica Wong ,  Roger Brockenbrough ,  Sang-Min Lee

IPC: H04B5/00

CPC classification number: H04B5/0031 ,  H04B5/0056 ,  H04B5/0081 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/42

Abstract: A method, an apparatus, and a computer program product for inductive communication are provided in connection with providing mechanisms for detecting a remote NFC device without excessive power consumption. In one example, a communications device is equipped to monitor frequency oscillations associated with a NFC antenna using a calibrated LPO, determine that a number of occurrences of the frequency oscillations from a reference frequency is greater than a frequency deviation threshold, and perform a NFC polling procedure in response to the determination.

公开(公告)号：US09240827B2

公开(公告)日：2016-01-19

申请号：US13956032

申请日：2013-07-31

Applicant: QUALCOMM Incorporated

Inventor： Roger Brockenbrough ,  Sang-Min Lee ,  Angelica Wong

IPC: H04B5/00 ,  G06K7/10

CPC classification number: H04B5/0081 ,  G06K7/10128 ,  H04B5/0031 ,  H04B5/0043

Abstract: A method, an apparatus, and a computer program product for wireless and/or inductive communications are provided in connection with improving remote NFC device detection through use of an oscillator circuit connected to an NFC antenna and matching network. In one example, a communications device is equipped to monitor frequency oscillations generated by an oscillator circuit associated with a transmitter path of a NFC antenna and matching network, determine that a number of occurrences of the frequency oscillations from a reference frequency is greater than a frequency deviation threshold, and perform a NFC polling procedure in response to the determination.

Abstract translation: 结合通过使用连接到NFC天线和匹配网络的振荡器电路来改进远程NFC设备检测来提供用于无线和/或感应通信的方法，设备和计算机程序产品。 在一个示例中，通信设备被配备为监视与NFC天线和匹配网络的发射机路径相关联的振荡器电路产生的频率振荡，确定来自参考频率的频率振荡的出现次数大于频率 偏差阈值，并且响应于该确定执行NFC轮询过程。

公开(公告)号：US20140227970A1

公开(公告)日：2014-08-14

申请号：US13956032

申请日：2013-07-31

Applicant: QUALCOMM Incorporated

Inventor： Roger Brockenbrough ,  Sang-Min Lee ,  Angelica Wong

IPC: H04B5/00

CPC classification number: H04B5/0081 ,  G06K7/10128 ,  H04B5/0031 ,  H04B5/0043

Abstract: A method, an apparatus, and a computer program product for wireless and/or inductive communications are provided in connection with improving remote NFC device detection through use of an oscillator circuit connected to an NFC antenna and matching network. In one example, a communications device is equipped to monitor frequency oscillations generated by an oscillator circuit associated with a transmitter path of a NFC antenna and matching network, determine that a number of occurrences of the frequency oscillations from a reference frequency is greater than a frequency deviation threshold, and perform a NFC polling procedure in response to the determination.

Abstract translation: 结合通过使用连接到NFC天线和匹配网络的振荡器电路来改进远程NFC设备检测来提供用于无线和/或感应通信的方法，设备和计算机程序产品。 在一个示例中，通信设备被配备为监视与NFC天线和匹配网络的发射机路径相关联的振荡器电路产生的频率振荡，确定来自参考频率的频率振荡的出现次数大于频率 偏差阈值，并且响应于该确定执行NFC轮询过程。