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公开(公告)号：US09507008B1
公开(公告)日：2016-11-29
申请号：US14105925
申请日：2013-12-13
Applicant: Amazon Technologies, Inc.
Inventor： Arvind Thiagarajan
IPC: G01S5/00
CPC classification number: G01S5/021
Abstract: Systems and methods for receiving a plurality of wireless communication signals and identifying an antenna occlusion condition from the received plurality of wireless communication signals is disclosed. A correction factor may be determined based at least in part on determined signal strength corresponding to each of the received wireless communication signals. The correction factor may be used to determine a location based at least in part on the signal strength corresponding to each of the received communication signals and the determined correction factor.
Abstract translation: 公开了用于从所接收的多个无线通信信号接收多个无线通信信号和识别天线遮挡状况的系统和方法。 可以至少部分地基于对应于所接收的每个无线通信信号的确定的信号强度来确定校正因子。 校正因子可以至少部分地基于与所接收的通信信号中的每一个对应的信号强度和所确定的校正因子来确定位置。
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公开(公告)号：US09361633B1
公开(公告)日：2016-06-07
申请号：US14077010
申请日：2013-11-11
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Arvind Thiagarajan , David George Butler
CPC classification number: G06Q30/0261 , G06Q30/0224
Abstract: A user device acquires identifiers and signal strengths corresponding to detectable wireless devices. The user device associates one or more of the identifiers with one or more venues, assigning a confidence value to each association. A score value is also assigned to each association based on the signal strengths and the confidence values. One of the associations is selected based on the score values, and is designated as the most likely venue where the user device is located. Information may be accessed or requested, or one or more operations may be performed, in accordance with the most likely venue.
Abstract translation: 用户设备获取与可检测无线设备相对应的标识符和信号强度。 用户设备将一个或多个标识符与一个或多个场馆相关联，为每个关联分配置信度值。 基于信号强度和置信度值，也将分数值分配给每个关联。 根据分数值选择其中一个关联，并将其指定为用户设备所在的最可能的场所。 可以根据最可能的场所访问或请求信息，或者可以执行一个或多个操作。
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公开(公告)号：US09086281B1
公开(公告)日：2015-07-21
申请号：US13898635
申请日：2013-05-21
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Arvind Thiagarajan , James Joseph Wolfe , Anand Balakrishnan
CPC classification number: G01C21/10 , G01C21/16 , G01C22/006
Abstract: Techniques are described for determining a direction in which a computing device is being transported by a user who is walking, running, or otherwise moving relative to a direction in which the device is being held. Acceleration data may be collected by accelerometers of the device during a time window, and transformed to determine a rotated acceleration along one or more candidate directions. The rotated acceleration is transformed to a frequency domain, and a peak power is determined within the frequency transformed acceleration data for each candidate direction. The peak powers are compared across multiple candidate directions, and the candidate direction having a higher peak power may be designated as a movement direction of the device relative to the device orientation. A gross movement direction may be determined based on magnetometer data, and may be employed for navigation or other applications.
Abstract translation: 描述了用于确定计算设备正在相对于正在保持设备的方向行进，运行或以其他方式移动的用户被传送的方向的技术。 加速度数据可以在时间窗口期间由装置的加速度计收集，并且被变换以确定沿着一个或多个候选方向的旋转加速度。 将旋转的加速度变换为频域，并且在每个候选方向的频率变换的加速度数据内确定峰值功率。 在多个候选方向上比较峰值功率，并且具有较高峰值功率的候选方向可以被指定为器件相对于器件取向的移动方向。 总移动方向可以基于磁力计数据来确定，并且可以用于导航或其他应用。
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公开(公告)号：US10422852B1
公开(公告)日：2019-09-24
申请号：US14133409
申请日：2013-12-18
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Arvind Thiagarajan , David George Butler
Abstract: Described are systems and techniques for determining a position of one or more people within a physical environment, such as an aisle in a fulfillment center. In some instances, the aisle is instrumented with a plurality of radio frequency receivers (RFRXs), active infrared transmitter-receiver pairs (AIRTRPs), and passive infrared (PIR) proximity sensors. A radio frequency-emitting tag carried by the user is detected by the RFRX to determine an identity and approximate position along the length of the aisle. Data indicating obscuration of beams from one or more of the AIRTRPs provides further refinement as to position along the length of the aisle. Data from the PIR provides disambiguation as to which side of the aisle the user is on. Accordingly, the user may be identified and precisely positioned in the aisle.
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Patent Agency Ranking
公开(公告)号：US10292015B1
公开(公告)日：2019-05-14
申请号：US15637108
申请日：2017-06-29
Applicant: Amazon Technologies, Inc.
Inventor： Arvind Thiagarajan , Evan Duke Jeng , Andrew David Price
Abstract: Described is an improved active-beacon/passive-listener time difference of arrival navigation system that relies on the multiple beacons to transmit uncoded acoustic pulses of a same frequency that propagate in the system at a same time for high-speed device tracking. Listening devices may receive multiple encoded radio frequency pulses (RF) prior to a single acoustic pulse, and then resolve which RF pulse corresponds to the acoustic pulse using triangulation techniques.
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公开(公告)号：US09716980B1
公开(公告)日：2017-07-25
申请号：US14639583
申请日：2015-03-05
Applicant: Amazon Technologies, Inc.
Inventor： Arvind Thiagarajan , Evan Duke Jeng , Andrew David Price
Abstract: An improved active-beacon/passive-listener time difference of arrival navigation system that relies on the multiple beacons to transmit uncoded acoustic pulses of a same frequency that propagate in the system at a same time for high-speed device tracking. Beacons are scheduled to transmit independent of the location of listening devices in the system. Listening devices may receive multiple encoded radio frequency pulses (RF) prior to a single acoustic pulse, and then resolves which RF pulse corresponds to the acoustic pulse using triangulation techniques.
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公开(公告)号：US09357493B1
公开(公告)日：2016-05-31
申请号：US14541655
申请日：2014-11-14
Applicant: Amazon Technologies, Inc.
Inventor： David George Butler , Richard William Mincher , Arvind Thiagarajan
IPC: G06F3/0346 , H04W52/02 , G06F3/0354
CPC classification number: H04W52/0254 , G06F3/0346 , G06F3/03545 , G06F3/038 , Y02D70/144
Abstract: A system including an active stylus and a mobile computing device where an electronic signal emitted by the tip of the stylus that the mobile computing device uses to locate the tip is turned on and off when the stylus is not being used to save power. Whether the stylus is being used is determined based on an orientation of the stylus in comparison to an orientation of an electronic writing surface of the computing device. Difference in barometric air pressure or altitude between the stylus and mobile computing device may also be used to turn the tip signal on and off.
Abstract translation: 一种包括活动触针和移动计算装置的系统，其中当触笔不用于节省电力时，打开和关闭由移动计算设备用于定位尖端的触控笔尖端发射的电子信号。 与所述计算装置的电子书写面的取向相比，所述触笔是否被使用是基于所述触控笔的取向来确定的。 气压气压或触针和移动计算设备之间的高度差异也可用于打开和关闭尖端信号。
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公开(公告)号：US20160139239A1
公开(公告)日：2016-05-19
申请号：US15005126
申请日：2016-01-25
Applicant: Amazon Technologies, Inc.
Inventor： Arvind Thiagarajan
CPC classification number: G01S5/0252 , G01S5/0263 , G01S5/0268 , G01S5/0294 , G01S5/10 , H04W64/00
Abstract: Techniques for precisely determining a location of a mobile computing device based on both wireless signal strengths measured at the mobile computing device and movement of the device. The wireless signal strengths may represent the strength of a connection between the device and wireless access points (WAPs), cellular towers, or the like. Furthermore, the techniques described herein may utilize movement data provided by the device. For instance, the device may include an accelerometer, a gyroscope, and/or any other components configured to recognize when a device is moving, a direction that the device is moving, or the like. In one example, the accelerometer reports when the device has moved by a certain amount, while the gyroscope reports a direction in which the device is moving. The techniques then utilize this information in addition to the wireless signal strengths to estimate locations of the device as the device moves over time.
Abstract translation: 基于在移动计算设备处测量的无线信号强度和设备的移动来精确地确定移动计算设备的位置的技术。 无线信号强度可以表示设备和无线接入点（WAP），蜂窝塔等之间的连接的强度。 此外，本文描述的技术可以利用由设备提供的移动数据。 例如，设备可以包括加速度计，陀螺仪和/或被配置为识别设备何时移动的方向，设备正在移动的方向等的任何其他组件。 在一个示例中，加速度计报告设备何时移动一定量，而陀螺仪报告设备正在移动的方向。 然后，技术除了无线信号强度之外还利用该信息来估计设备随时间移动的位置。
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公开(公告)号：US09100799B1
公开(公告)日：2015-08-04
申请号：US13916708
申请日：2013-06-13
Applicant: Amazon Technologies, Inc.
Inventor： Arvind Thiagarajan , David George Butler , Andrew David Price , Shih-Chun Chang , Yi Zhu
CPC classification number: H04W4/06
Abstract: Systems and methods for broadcasting messages carried on one or more beacon signals are disclosed. A message sharing device may identify a message to be broadcast and may transmit the message to a base station to generate a beacon signal or generate the beacon signal itself based at least in part on the message. The beacon signal may include an indication that the beacon signal carries a message. The beacon signal may be broadcast and may be received by one or more message receiving devices. In some cases, the message may include a link to content accessible via one or more networks, such as the Internet.
Abstract translation: 公开了在一个或多个信标信号上传送消息的系统和方法。 消息共享设备可以标识要广播的消息，并且可以至少部分地基于消息将消息发送到基站以生成信标信号或生成信标信号本身。 信标信号可以包括信标信号携带消息的指示。 信标信号可以被广播并且可以被一个或多个消息接收装置接收。 在某些情况下，该消息可以包括通过一个或多个网络（例如因特网）可访问的内容的链接。
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