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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：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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公开(公告)号：US11368173B2
公开(公告)日：2022-06-21
申请号：US16709560
申请日：2019-12-10
Applicant: Amazon Technologies, Inc.
Inventor： Varadarajan Gopalakrishnan , Andrew David Price , In Chul Hyun , Jin Dong Kim , Subram Narasimhan
IPC: H01Q1/24 , H04L67/104 , H04L67/1097 , H04W84/22 , H04B1/00 , H01Q19/10 , H01Q19/185 , H01Q21/20 , H01Q21/24 , H01Q21/28 , H04M1/02 , H01Q5/30 , H01Q1/50 , H01Q21/29 , H04L67/1087 , H04W40/02 , H04L67/06 , H04W84/12 , H04W84/18
Abstract: Wireless mesh network (WMN) architectures of network hardware devices organized in a mesh topology is described. One device communicates, using a first radio, first data with a second device via a first wireless link between the device and the second device. The device communicates, using a second radio, second data with a third device via a second wireless link between the device and the third device. The device communicates, using a third radio, third data with a fourth device via a third wireless link between the device and the fourth device. The device communicates, using a fourth radio, fourth data with a server of a content delivery network (CDN) via a point-to-point wireless link between the device and the server. The device is an only ingress point for content files for a mesh network that includes at least the device, the second device, and the third device.
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Patent Agency Ranking
公开(公告)号：US10742706B1
公开(公告)日：2020-08-11
申请号：US15463792
申请日：2017-03-20
Applicant: Amazon Technologies, Inc.
Inventor： Yi Zhu , Kiran Kumar Edara , Kaixiang Hu , Andrew David Price
IPC: G06F15/16 , H04L29/06 , H04L29/08 , G06F15/173
Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which one mesh network device includes a first radio and one or more additional radios coupled to an application processor. The application processor receives a request to stream content data to a client consumption device, via the first radio, and receives portions of the content data from multiple devices at different retrieval rates via the one or more additional radios. The application processor calculates an average retrieval rate for retrieving the first segments and the second segments, determines a desired streaming bitrate value, and determines an end time to complete transmission of a first portion to the client consumption device. The application processor transmits, via the first radio, the first portion such that at least one byte of the first portion is transmitted at the end time to complete transmission of the first portion.
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公开(公告)号：US10219142B2
公开(公告)日：2019-02-26
申请号：US15595479
申请日：2017-05-15
Applicant: Amazon Technologies, Inc.
Inventor： Lori Yoshida , Varadarajan Gopalakrishnan , Sheung Mei Chan , Avinash Joshi , Andrew David Price , Jungtao Liu
Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes multiple radios. A processing device of a first network hardware device receives, via a first radio, a beacon frame from a second mesh network device, scans, via a second radio, for a second mesh frame of the second mesh network device, and receives the mesh frame. The processing device determines a first sector identifier that identifies an antenna from which the mesh frame is transmitted, a first signal strength indicator value corresponding to the mesh frame, an unused radio and an unused channel of the second mesh network device. The processing device sends a first message to the unused radio of the second mesh network device on the unused channel via the second radio, receives a second message, and configures the multiple radios to communicate with the second mesh network device.
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公开(公告)号：US20180331914A1
公开(公告)日：2018-11-15
申请号：US15595479
申请日：2017-05-15
Applicant: Amazon Technologies, Inc.
Inventor： Lori Yoshida , Varadarajan Gopalakrishnan , Sheung Mei Chan , Avinash Joshi , Andrew David Price , Jungtao Liu
Abstract: Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes multiple radios. A processing device of a first network hardware device receives, via a first radio, a beacon frame from a second mesh network device, scans, via a second radio, for a second mesh frame of the second mesh network device, and receives the mesh frame. The processing device determines a first sector identifier that identifies an antenna from which the mesh frame is transmitted, a first signal strength indicator value corresponding to the mesh frame, an unused radio and an unused channel of the second mesh network device. The processing device sends a first message to the unused radio of the second mesh network device on the unused channel via the second radio, receives a second message, and configures the multiple radios to communicate with the second mesh network device.
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公开(公告)号：US20170222666A1
公开(公告)日：2017-08-03
申请号：US15154314
申请日：2016-05-13
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： In Chul Hyun , Andrew David Price , Tzung-I Lee , Kwok Lee , Cheol Su Kim , Omar Fawazhashim Zakaria , Varadarajan Gopalakrishnan
CPC classification number: H04B1/0057 , H01Q1/243 , H01Q1/50 , H01Q5/30 , H01Q19/106 , H01Q19/185 , H01Q21/205 , H01Q21/24 , H01Q21/28 , H01Q21/29 , H04L67/06 , H04L67/104 , H04L67/1091 , H04L67/1097 , H04M1/026 , H04W40/02 , H04W84/12 , H04W84/18 , H04W84/22
Abstract: Network hardware devices organized in a Wireless mesh network (WMN) in which the network hardware devices cooperate in distribution of content files to client consumption devices in an environment of limited connectivity to broadband Internet infrastructure are described. One mesh network device includes a micro controller, RF radios, and antenna switching circuitry. The antenna switching circuitry, in response to the control signals from a micro controller, selectively couples individual ones of a first set of antennas to individual channels of the set of RF radios to communicate content data with client consumption devices and selectively couples individual ones of a second set of antennas to other individual channels of the set of RF radios to communicate content data with other mesh network devices in a WMN.
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公开(公告)号：US09268920B1
公开(公告)日：2016-02-23
申请号：US14023003
申请日：2013-09-10
Applicant: Amazon Technologies, Inc.
Inventor： David George Butler , Andrew David Price , Arvind Thiagarajan , Subram Narasimhan , Yi Zhu , Shrinivas Mohan
CPC classification number: G06F21/10 , G06F2221/0708
Abstract: A system and method for controlling access to digital content based on proximity and location of a user device. A user device connects to a local network and an audio transmission including a perpetually rolling key is transmitted within a geo-fence in the local area. The user device hears the audio transmission and uses the key to authenticate to a content server over the network. Once authenticated, the user device may then stream content from the content server. In order to terminate access to the content when the user device leaves the geo-fence, the content server may require the key to be retransmitted from the user device at regular intervals to re-authenticate the user device. Other factors such as radio fingerprints from the user device may also be used instead of or in addition to the audio to verify the user device's presence within the geo-fence.
Abstract translation: 一种用于基于用户设备的接近度和位置来控制对数字内容的访问的系统和方法。 用户设备连接到本地网络，并且包括永久滚动密钥的音频传输在本地区域内的地理围栏内传输。 用户设备听到音频传输，并使用密钥通过网络向内容服务器进行身份验证。 一旦认证，用户设备然后可以从内容服务器流传输内容。 为了在用户设备离开地理围栏时终止对内容的访问，内容服务器可能需要定期从用户设备重传密钥以重新认证用户设备。 也可以使用诸如来自用户设备的无线电指纹的其他因素来代替或补充音频，以验证用户设备在地理围栏内的存在。
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