公开(公告)号：US20160028477A1

公开(公告)日：2016-01-28

申请号：US14339170

申请日：2014-07-23

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Mahadevi Pillai Perumal ,  Thomas Joseph Richardson ,  Junyi Li

IPC: H04B10/116

CPC classification number: H04B10/116

Abstract: Methods, systems, and devices are described for deriving an identifier encoded in a visible light communication (VLC) signal. One method includes capturing a first part of the VLC signal; extracting, from the first part of the VLC signal, a first pattern of bits representing at least a portion of the identifier encoded in the VLC signal; comparing the first pattern of bits to different portions of a plurality of identifiers; and identifying, based at least in part on the comparing, a subset of the plurality of identifiers as candidate matches to the identifier encoded in the VLC signal.

Abstract translation: 描述了用于导出以可见光通信（VLC）信号编码的标识符的方法，系统和设备。 一种方法包括捕获VLC信号的第一部分; 从VLC信号的第一部分提取表示在VLC信号中编码的标识符的至少一部分的比特的第一模式; 将所述第一位模式与多个标识符的不同部分进行比较; 以及至少部分地基于所述比较来识别所述多​​个标识符的子集作为与所述VLC信号中编码的标识符的候选匹配。

公开(公告)号：US20150373503A1

公开(公告)日：2015-12-24

申请号：US14311190

申请日：2014-06-20

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic

IPC: H04W4/04 ,  H04B10/116

CPC classification number: H04W4/029 ,  G01S5/0252 ,  G01S5/16 ,  H04B10/116

Abstract: Method, mobile device, computer program product, and apparatus for performing Positioning System Enhancement is described. A visible light communication (VLC) signal is received at a mobile device in an environment and the mobile device measures an external field in response to receiving the VLC signal. The mobile device decodes an identifier from the VLC signal and determines a relative position to the VLC signal source. The mobile device sends information to a server. The information sent to the server includes the identifier, position, and external field measurement. The server calculates position within the heatmap according to the identifier and relative position received from the mobile device. The server updates the heatmap according to the position of the mobile device and respective external measurements at the position.

Abstract translation: 描述了用于执行定位系统增强的方法，移动设备，计算机程序产品和装置。 可视光通信（VLC）信号在环境中的移动设备处被接收，并且移动设备响应于接收到VLC信号来测量外部场。 移动设备从VLC信号解码标识符并确定与VLC信号源的相对位置。 移动设备向服务器发送信息。 发送到服务器的信息包括标识符，位置和外部场测量。 服务器根据从移动设备接收的标识符和相对位置来计算热图中的位置。 服务器根据移动设备的位置和相应的外部测量在位置更新热图。

公开(公告)号：US20150324642A1

公开(公告)日：2015-11-12

申请号：US14271202

申请日：2014-05-06

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Snehesh Shrestha ,  Kumar Appaiah

IPC: G06K9/00 ,  G06T7/00

CPC classification number: G06K9/00624 ,  G01S5/163 ,  G06T7/73

Abstract: Methods, systems, and devices are described for determining an orientation of a mobile device. One method includes capturing, at the mobile device, an image of at least one illuminated object defining an illuminated reference axis; determining a first angle between the illuminated reference axis and a device reference axis of the mobile device; determining a second angle between the illuminated reference axis and a common reference axis; estimating a third angle between the device reference axis and the common reference axis; and determining an orientation of the mobile device based at least in part on the first angle, the second angle, and the third angle.

Abstract translation: 描述了用于确定移动设备的定向的方法，系统和设备。 一种方法包括在移动设备处捕获限定照明参考轴的至少一个照明对象的图像; 确定所述照明参考轴线和所述移动设备的设备参考轴线之间的第一角度; 确定所述照明参考轴和公共参考轴之间的第二角度; 估计设备参考轴和公共参考轴之间的第三角度; 以及至少部分地基于所述第一角度，所述第二角度和所述第三角度来确定所述移动设备的方位。

公开(公告)号：US20150223277A1

公开(公告)日：2015-08-06

申请号：US14170330

申请日：2014-01-31

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Menucher Behram Menuchehry

IPC: H04W76/02 ,  H04L29/06 ,  H04B10/116 ,  H04W12/06 ,  H04W12/04

CPC classification number: H04W76/14 ,  H04B10/116 ,  H04L12/437 ,  H04L63/08 ,  H04L63/18 ,  H04W12/003 ,  H04W12/00504 ,  H04W12/04 ,  H04W12/06

Abstract: Methods, systems, and devices are described for wireless communication. In one method, a visible light communication (VLC) signal may be transmitted from a first device to a second device. The VLC signal may include an identifier of the first device. In response to the broadcast VLC signal, information for initiating a connection with a third device may be received. In another method, a VLC signal may be received from a first device at a second device. The VLC signal may include an identifier of the first device. In response to receiving the VLC signal, information for initiating a connection between the first device and a third device may be transmitted.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 在一种方法中，可见光通信（VLC）信号可以从第一设备传输到第二设备。 VLC信号可以包括第一设备的标识符。 响应于广播VLC信号，可以接收用于发起与第三设备的连接的信息。 在另一种方法中，可以在第二设备处从第一设备接收VLC信号。 VLC信号可以包括第一设备的标识符。 响应于接收到VLC信号，可以发送用于发起第一设备和第三设备之间的连接的信息。

公开(公告)号：US09037001B2

公开(公告)日：2015-05-19

申请号：US13802733

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Thomas Joseph Richardson ,  Ivan Klimek

IPC: H04B10/00 ,  H04B10/116 ,  G03B7/00 ,  H04B10/114

CPC classification number: H04B10/116 ,  H04B10/1141

Abstract: Methods and apparatus related to the detection of low-rate visible light communication (VLC) signals and the recovery of information communicated by the VLC signals are described. Various methods and apparatus are well suited for embodiments in which a device, e.g., a smartphone, including a camera which uses a rolling shutter. The rolling shutter facilitates the collection of different time snapshots of a received low rate time varying VLC signal with different pixel rows in the image sensor of a frame corresponding to different time snapshots. In some embodiments, demodulation is used to recover and identify a single tone being communicated in a frame from among a plurality of possible alternative tones that may be communicated, each different tone corresponding to a different set of information bits.

Abstract translation: 描述了与检测低速可见光通信（VLC）信号相关的方法和装置以及由VLC信号传送的信息的恢复。 各种方法和装置非常适合于其中诸如智能手机的装置，包括使用滚动快门的相机的实施例。 滚动快门便于在对应于不同时间快照的帧的图像传感器中收集具有不同像素行的接收的低速率时变VLC信号的不同时间快照。 在一些实施例中，使用解调来恢复和识别在可以被传送的多个可能的替代音调之间的帧中传送的单个音调，每个不同音调对应于不同的信息比特集合。

公开(公告)号：US20150093107A1

公开(公告)日：2015-04-02

申请号：US14044023

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Mahadevi Pillai Perumal ,  Thomas Joseph Richardson ,  Junyi Li

IPC: H04L7/00 ,  H04L7/033 ,  H04B10/079 ,  H04B10/116 ,  H04L7/027

CPC classification number: H04B10/0795 ,  H04B10/116 ,  H04L7/041

Abstract: Methods, systems, apparatuses, and devices are described for transmitting and receiving data using rateless visible light communication (VLC). A codeword having a plurality of symbols is identified. The codeword is repetitively transmitted in a VLC signal while, from one transmission of the codeword to a next transmission of the codeword, imparting changes in timings of the symbols of the codeword relative to a timing reference of an image capture frame of an image sensor configured to receive the codeword. A VLC signal including repetitions of a codeword is received. The codeword has a plurality of symbols. A determination is made regarding whether at least one symbol of the codeword is undetected in a repetition of the codeword. Upon determining that the at least one symbol is undetected in the repetition of the codeword, at least one other repetition of the codeword is searched to detect the at least one symbol.

Abstract translation: 描述了使用无可见可见光通信（VLC）发送和接收数据的方法，系统，装置和设备。 识别具有多个符号的码字。 在VLC信号中重复发送码字，而从代码字的一次传输到码字的下一个传输，相对于配置的图像传感器的图像捕获帧的定时参考赋予码字符号的定时改变 以接收码字。 接收包括码字重复的VLC信号。 码字具有多个符号。 确定码字的重复中是否未检测到码字的至少一个符号。 在确定码字的重复中未检测到至少一个符号时，搜索码字的至少一个其它重复以检测至少一个符号。

公开(公告)号：US20150036577A1

公开(公告)日：2015-02-05

申请号：US14518692

申请日：2014-10-20

Applicant: QUALCOMM Incorporated

Inventor： Rajiv Laroia ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu ,  Aleksandar Jovicic

IPC: H04W52/26 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04W72/1242 ,  H04W28/22 ,  H04W48/08 ,  H04W52/16 ,  H04W52/18 ,  H04W52/267 ,  H04W72/0473 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

Abstract: Methods and apparatus related to peer to peer communication networks are described. Embodiments directed to methods and apparatus for establishing traffic data transmission rates and/or transmission power levels between wireless terminals is described. Embodiments direct to methods and apparatus of making decisions whether or not to transmit as a function of the received power of the received response signals are also described. Transmission of pilot signals after granting of a transmission request and a decision to transmit traffic data has been made occurs in some embodiments. Rate information to be used in determining a traffic rate may be received in response to the pilot signal from a peer to peer (P2P) device.

公开(公告)号：US20140375982A1

公开(公告)日：2014-12-25

申请号：US13923908

申请日：2013-06-21

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Thomas J. Richardson

IPC: G01C21/00 ,  G01C21/10 ,  G01B11/14

CPC classification number: G01C21/00 ,  G01B11/14 ,  G01C21/10 ,  G01C21/206 ,  G01S5/16 ,  H04B10/116

Abstract: Methods, systems, and devices are described for determining positioning information of a mobile device using modulated light signals. A modulated light signal may be received from each of at least one light source. Each modulated light signal may be decoded to obtain identification information identifying the at least one light source. An angle of arrival of each modulated light signal may also be identified. Each angle of arrival of may be associated with an identified light source.

Abstract translation: 描述了使用调制光信号确定移动设备的定位信息的方法，系统和设备。 可以从至少一个光源中的每一个接收调制光信号。 可以对每个调制光信号进行解码以获得识别至少一个光源的识别信息。 也可以识别每个调制光信号的到达角。 每个到达角度可以与识别的光源相关联。

公开(公告)号：US20140270796A1

公开(公告)日：2014-09-18

申请号：US13802733

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Jovicic ,  Thomas Joseph Richardson ,  Ivan Klimek

IPC: H04B10/116 ,  G03B7/00

CPC classification number: H04B10/116 ,  H04B10/1141

Abstract: Methods and apparatus related to the detection of low-rate visible light communication (VLC) signals and the recovery of information communicated by the VLC signals are described. Various methods and apparatus are well suited for embodiments in which a device, e.g., a smartphone, including a camera which uses a rolling shutter. The rolling shutter facilitates the collection of different time snapshots of a received low rate time varying VLC signal with different pixel rows in the image sensor of a frame corresponding to different time snapshots. In some embodiments, demodulation is used to recover and identify a single tone being communicated in a frame from among a plurality of possible alternative tones that may be communicated, each different tone corresponding to a different set of information bits.

Abstract translation: 描述了与检测低速可见光通信（VLC）信号相关的方法和装置以及由VLC信号传送的信息的恢复。 各种方法和装置非常适合于其中诸如智能手机的装置，包括使用滚动快门的相机的实施例。 滚动快门便于在对应于不同时间快照的帧的图像传感器中收集具有不同像素行的接收的低速率时变VLC信号的不同时间快照。 在一些实施例中，使用解调来恢复和识别在可以被传送的多个可能的替代音调之间的帧中传送的单个音调，每个不同音调对应于不同的信息比特集合。

公开(公告)号：US20140255036A1

公开(公告)日：2014-09-11

申请号：US13787676

申请日：2013-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Jovicic ,  Ivan Klimek ,  Thomas Joseph Richardson ,  Junyi Li

IPC: H04B10/116

CPC classification number: H04B10/116 ,  G07C9/00309 ,  G07C9/00571 ,  G07C2009/00785 ,  H04K1/00

Abstract: Methods and apparatus for controlling access to secure areas are described. Time varying values are generated from access device identifiers, e.g., door identifiers. The time varying value, e.g., a hashed door identifier value, is transmitted as a VLC signal by a luminaire near the door to which the hashed identifier corresponds. A mobile detects the transmitted hashed door identifier value and sends an access request via a wireless signal, e.g., a radio signal. The access request includes a value generated from the received hashed door identifier and a mobile device identifier. A control device determines, from information in the access request and stored information indicating which mobile devices have authority to access which doors, if access should be granted to the door corresponding to the hashed access device identifier from which the received information was generated. The received information may be hash of the mobile identifier and hashed door identifier.

Abstract translation: 描述了用于控制对安全区域的访问的方法和装置。 从接入设备标识符（例如门标识符）产生时变值。 时间变化值（例如，散列的门标识符值）作为VLC信号由散列标识符对应的门附近的灯具发送。 移动台通过无线信号（例如无线电信号）检测所发送的散列门标识符值并发送接入请求。 访问请求包括从接收到的散列门标识符和移动设备标识符生成的值。 控制装置根据访问请求中的信息和存储的信息，确定哪些移动装置具有访问哪些门的权限，如果应该向门发出访问，对应于生成接收到的信息的散列访问设备标识符。 所接收的信息可以是移动标识符的哈希和散列的门标识符。