公开(公告)号：US20140133656A1

公开(公告)日：2014-05-15

申请号：US13773336

申请日：2013-02-21

Applicant: QUALCOMM INCORPORATED

Inventor： Charles S. Wurster ,  Ning Shang ,  Panagiotis Thomas ,  Stephen A. Sprigg ,  Matthew Hohlfeld ,  Ivan Hugh Mclean

IPC: H04W12/08 ,  H04L9/28

CPC classification number: H04W12/02 ,  H04W12/08 ,  G01S5/0018 ,  H04L9/0637 ,  H04L9/3228 ,  H04L63/0414 ,  H04L63/0846 ,  H04L2209/805 ,  H04W4/023 ,  H04W12/06

Abstract: Methods, systems and devices enable synchronizing obscured identification information between a wireless identity transmitter and a central server to support one-way communication of the obscured identification information to the central server. The wireless identity transmitter may be a compact device configured to broadcast messages, such as through Bluetooth® advertisements, including an obscured identifier for receipt and relay to the central server by proximate proximity broadcast receivers via sighting messages that may also include location information. The central server may decode received identification codes to identify the wireless identity transmitter. The wireless identity transmitter may create message data by concatenating identifying information with an incrementing nonce, encrypting the concatenated information, and truncating the encrypted information. Alternatively, concatenated identification information may be encrypted with a pseudo-random function and a secret key known by the central server. The central server that may compare received data to pre-calculated encrypted data.

Abstract translation: 方法，系统和设备使得能够在无线标识发射机和中央服务器之间同步模糊识别信息，以支持对中央服务器的隐蔽识别信息的单向通信。 无线标识发射机可以是被配置为广播诸如通过蓝牙广告的消息的紧凑设备，包括用于接收的模糊标识符，并且可以通过邻近的广播接收机经由也可以包括位置信息的查看消息将其中继到中央服务器。 中央服务器可以解码所接收的识别码以识别无线标识发射机。 无线识别发射机可以通过连接识别信息与递增随机数，加密连接的信息和截断加密的信息来创建消息数据。 或者，可以用伪随机函数和中央服务器已知的秘密密钥加密级联的标识信息。 可将接收到的数据与预先计算的加密数据进行比较的中央服务器。

公开(公告)号：US08948782B2

公开(公告)日：2015-02-03

申请号：US13724350

申请日：2012-12-21

Applicant: QUALCOMM Incorporated

Inventor： Ning Shang ,  Yafei Yang

IPC: H04W24/00 ,  H04W4/02 ,  H04W4/00

CPC classification number: H04W4/023 ,  H04W4/021 ,  H04W4/80

Abstract: Systems and methods of determining proximity of a mobile device to a target location are described herein. A method as described herein includes identifying a signal sent by the mobile device and received by respective ones of a set of receivers including at least a first receiver and a second receiver, wherein the first receiver and second receiver are positioned collinearly to the target location; determining a first signal-quality metric observed at the first receiver and a second signal-quality metric observed at the second receiver with respect to the signal; computing a ratio associated with distances from the mobile device to the first receiver and the second receiver, respectively, based on the first signal-quality metric and the second signal-quality metric; and determining whether the mobile device is within a proximity region defined in relation to the target location based on the ratio.

Abstract translation: 本文描述了确定移动设备到目标位置的接近度的系统和方法。 本文所述的方法包括识别由移动设备发送并由包括至少第一接收机和第二接收机的一组接收机中的相应接收机接收的信号，其中第一接收机和第二接收机与目标位置共线定位; 确定在所述第一接收机处观察到的第一信号质量度量和在所述第二接收机处观察到的相对于所述信号的第二信号质量度量; 基于第一信号质量度量和第二信号质量度量，分别计算与从移动设备到第一接收机和第二接收机的距离相关联的比率; 以及基于所述比率来确定所述移动设备是否在关于所述目标位置定义的接近区域内。

公开(公告)号：US20140179338A1

公开(公告)日：2014-06-26

申请号：US13724350

申请日：2012-12-21

Applicant: QUALCOMM INCORPORATED

Inventor： Ning Shang ,  Yafei Yang

IPC: H04W4/02

CPC classification number: H04W4/023 ,  H04W4/021 ,  H04W4/80

Abstract: Systems and methods of determining proximity of a mobile device to a target location are described herein. A method as described herein includes identifying a signal sent by the mobile device and received by respective ones of a set of receivers including at least a first receiver and a second receiver, wherein the first receiver and second receiver are positioned collinearly to the target location; determining a first signal-quality metric observed at the first receiver and a second signal-quality metric observed at the second receiver with respect to the signal; computing a ratio associated with distances from the mobile device to the first receiver and the second receiver, respectively, based on the first signal-quality metric and the second signal-quality metric; and determining whether the mobile device is within a proximity region defined in relation to the target location based on the ratio.

Abstract translation: 本文描述了确定移动设备到目标位置的接近度的系统和方法。 本文所述的方法包括识别由移动设备发送并由包括至少第一接收机和第二接收机的一组接收机中的相应接收机接收的信号，其中第一接收机和第二接收机与目标位置共线定位; 确定在所述第一接收机处观察到的第一信号质量度量和在所述第二接收机处观察到的相对于所述信号的第二信号质量度量; 基于第一信号质量度量和第二信号质量度量，分别计算与从移动设备到第一接收机和第二接收机的距离相关联的比率; 以及基于所述比率来确定所述移动设备是否在关于所述目标位置定义的接近区域内。

公开(公告)号：US09414193B2

公开(公告)日：2016-08-09

申请号：US14056788

申请日：2013-10-17

Applicant: QUALCOMM Incorporated

Inventor： Xintian Li ,  Ning Shang ,  Marc Anthony Ische

IPC: H04K1/00 ,  H04W4/02 ,  H04W12/08 ,  G01S5/02

CPC classification number: H04W4/021 ,  G01S5/0252 ,  H04L43/0864 ,  H04W4/022 ,  H04W8/26 ,  H04W12/08 ,  H04W24/10 ,  H04W84/12

Abstract: Systems, apparatus and methods for communicating and using a geofence while maintaining privacy are presented. A geofence is based on at least one RF fingerprint. The RF fingerprints include absolute information that is transformed into a one-way matrix (A) by application of a one-way function. The absolute information may identify a transmitter (e.g., by location, address or the like). An equation 0=Ax (where 0 is a zero vector, A is the one-way matrix and x is a signature vector) is solved to reveal one possible solution for the signature vector (x). This signature vector (x) is communicated rather than the RF fingerprints themselves, thus obscuring the absolute information and maintaining privacy.

Abstract translation: 介绍了在保持隐私的同时进行沟通和使用地理围栏的系统，设备和方法。 地理围栏基于至少一个RF指纹。 RF指纹包括通过应用单向函数变换为单向矩阵（A）的绝对信息。 绝对信息可以识别发射机（例如，通过位置，地址等）。 方程0 = Ax（其中0是零向量，A是单向矩阵，x是签名向量），以揭示签名向量（x）的一个可能的解。 该签名向量（x）被传送而不是RF指纹本身，从而掩盖绝对信息并保持隐私。