公开(公告)号：US20160295370A1

公开(公告)日：2016-10-06

申请号：US14857465

申请日：2015-09-17

Applicant: QUALCOMM Incorporated

Inventor： Pranav Iyengar ,  Ashish Banthia ,  Mahbod Mofidi

IPC: H04W4/02 ,  H04L5/00 ,  H04W72/04 ,  H04W4/00

CPC classification number: H04W4/025 ,  H04L5/0055 ,  H04W4/80 ,  H04W64/006 ,  H04W72/048

Abstract: A method for wireless communication by a wireless communication device is described. The method includes receiving geographic location information. The method also includes querying a geographic location tuning database for tuning parameter values corresponding with the geographic location information. The method further includes determining one or more tuning parameters to change based on the tuning parameter values. The method additionally includes adjusting an antenna for inductively coupled communication with a reader device according to the determined tuning parameters.

Abstract translation: 描述了一种由无线通信设备进行无线通信的方法。 该方法包括接收地理位置信息。 该方法还包括查询地理位置调整数据库以调整与地理位置信息相对应的参数值。 该方法还包括基于调谐参数值来确定要改变的一个或多个调谐参数。 该方法还包括根据所确定的调谐参数调整用于与读取器装置进行感应耦合通信的天线。

公开(公告)号：US20160241382A1

公开(公告)日：2016-08-18

申请号：US14863082

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

Inventor： Eunmo Kang ,  Mahbod Mofidi ,  Paul DenBoer ,  Xiao Deng ,  Ashish Subhash Banthia ,  Vincent So ,  Vikram Meka

IPC: H04L7/00

CPC classification number: H04L7/0087 ,  H04B5/00 ,  H04L7/00 ,  H04L7/0037 ,  H04L7/10

Abstract: A method for communications is described. The method includes determining a symbol timing drift elimination amount for a received signal. The method further includes eliminating part of the symbol timing drift by adjusting a reference clock for the modem. Determining the symbol timing drift elimination amount may be based on at least one of a symbol timing drift estimate, a symbol timing error, a packet acquisition indicator, a packet validity indicator, demodulated bits or a carrier presence indicator.

Abstract translation: 描述用于通信的方法。 该方法包括确定接收信号的符号定时漂移消除量。 该方法还包括通过调整调制解调器的参考时钟来消除部分符号定时漂移。 确定符号定时漂移消除量可以基于符号定时漂移估计，符号定时误差，分组获取指示符，分组有效性指示符，解调比特或载波存在指示符中的至少一个。

公开(公告)号：US20150072615A1

公开(公告)日：2015-03-12

申请号：US14448795

申请日：2014-07-31

Applicant: QUALCOMM Incorporated

Inventor： Mahbod Mofidi ,  Thomas P. Cargill

IPC: H04B1/12 ,  H04B5/00

CPC classification number: H04B5/0075 ,  H04B1/525 ,  H04B5/0031

Abstract: A method for reducing transmission interference is described. The method may be performed by a wireless communication device. The method includes determining that a tuned FM frequency of an FM receiver is within a threshold of a harmonic of an inductive communication transmission produced by an inductive communication transceiver. A magnetic field of the inductive communication transceiver is inductively coupled with the FM receiver. The method also includes canceling the harmonic of the inductive communication transmission by energizing a parasitic loop with the magnetic field.

Abstract translation: 描述了一种降低传输干扰的方法。 该方法可以由无线通信设备执行。 该方法包括确定FM接收机的调谐FM频率在由感应通信收发器产生的感应通信传输的谐波的阈值内。 感应通信收发器的磁场与FM接收机感应耦合。 该方法还包括通过用磁场激励寄生环来消除感应通信传输的谐波。