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公开(公告)号:US20140329552A1
公开(公告)日:2014-11-06
申请号:US14331985
申请日:2014-07-15
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor: Varadarajan Gopalakrishnan , James Samuel Bowen , In Chul Hyun , David Woo
CPC classification number: H04W52/18 , H01Q1/243 , H01Q1/245 , H01Q21/28 , H04B1/3838 , H04W52/228 , H04W52/36 , H04W52/367
Abstract: A user device receives a command to transmit information at a transmit power level specified by a wireless carrier. The user device determines whether transmitting the information at the specified transmit power level using a first duty cycle will cause the user device to violate a condition. Responsive to determining that transmitting the information at the specified transmit power level using the first duty cycle will cause the user device to violate the condition, the user device determines a new duty cycle that is lower than the first duty cycle, and transmits the information using the new duty cycle.
Abstract translation: 用户设备接收以由无线运营商指定的发射功率电平发送信息的命令。 用户设备确定使用第一占空比是否以指定的发射功率电平发送信息将导致用户设备违反条件。 响应于确定使用第一占空比以指定的发射功率电平发送信息将导致用户设备违反该条件,用户设备确定低于第一占空比的新占空比,并且使用 新的职责周期。
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公开(公告)号:US10984372B2
公开(公告)日:2021-04-20
申请号:US13902770
申请日:2013-05-24
Applicant: Amazon Technologies, Inc.
Inventor: Varadarajan Gopalakrishnan , Subram Narasimhan , Omar FawazHashim Zakaria , Dilip Kumar , Sridhar Boyapati , Jin Dong Kim
Abstract: This disclosure describes a system for managing inventory as it transitions into a materials handling facility, as it transitions between locations within a materials handling facility and/or as it transitions out of a materials handling facility. In some instances, a user (e.g., picker or picking agent) may retrieve an item from an inventory location and place the item into a tote. The systems described herein detect the item when it is added to or removed from the tote.
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公开(公告)号:US10860976B2
公开(公告)日:2020-12-08
申请号:US13902769
申请日:2013-05-24
Applicant: Amazon Technologies, Inc.
Inventor: Varadarajan Gopalakrishnan , Subram Narasimhan , Omar FawazHashim Zakaria , Dilip Kumar , Sridhar Boyapati , Jin Dong Kim
IPC: G06Q10/08
Abstract: This disclosure describes a system for managing inventory as it transitions into a materials handling facility, as it transitions between locations within a materials handling facility and/or as it transitions out of a materials handling facility. In some instances, a user (e.g., picker or picking agent) may retrieve an item from an inventory location and place the item into a tote. The systems described herein detect the item when it is added to or removed from the tote.
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公开(公告)号:US10477585B1
公开(公告)日:2019-11-12
申请号:US16049593
申请日:2018-07-30
Applicant: Amazon Technologies, Inc.
Inventor: Kun Ting Tsai , Chirag Bhavsar , Huanchun Ye , Varadarajan Gopalakrishnan , QingYun Wei , Morris Hsu , James Edwin Christy
Abstract: Microwave interference mitigation techniques and systems are disclosed herein. In some embodiments, microwave interference mitigation involves coordinating wireless traffic in accordance with a magnetron's on-and-off cycle so that data is not sent during the magnetron's on period, and is exclusively sent during the magnetron's off period. Wireless traffic can be coordinated using a voltage monitoring and zero-crossing point detection technique coupled with a Clear To Send (CTS) packet. For non-microwave devices, wireless traffic coordination can be achieved using a pattern matching algorithm coupled with a Clear Channel Assessment (CCA) threshold adjustment during the magnetron's on-and-off cycles. Additional, or alternative, microwave interference mitigation techniques involve decreasing a maximum packet size for data packets that are to be transmitted wirelessly in the environment, which guarantees successful transmission of data packets during the magnetron's off periods.
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公开(公告)号:US10477411B1
公开(公告)日:2019-11-12
申请号:US15623217
申请日:2017-06-14
Applicant: Amazon Technologies, Inc.
Inventor: Jungtao Liu , Varadarajan Gopalakrishnan
Abstract: Network hardware devices are organized in a wireless mesh network (WMN) including a base station node (BSN) device connected to a tower in a geographic area and multiple home access node (HAN) relay devices located in a geographic area and separated from one another by a distance. First set, second set, and third set of HAN relay devices are organized in a first hexagon pattern, a second hexagon pattern, and a third hexagon pattern, respectively, forming a base unit of the WMN. The BSN device is communicatively coupled to a first HAN relay device of the first set, a first HAN relay device of the second set, and a first HAN relay device of the third set and the BSN device is positioned within a geographic region defined by an outer perimeter of the base unit.
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公开(公告)号:US10115390B2
公开(公告)日:2018-10-30
申请号:US15170321
申请日:2016-06-01
Applicant: Amazon Technologies, Inc.
Inventor: Varadarajan Gopalakrishnan , Kiran K. Edara
Abstract: A server determines that communications with a first user device are to be made in a voice call mode. The server receives, from a second user device, a first text data packet corresponding to text communications with the first user device, converts the first text data packet into a first voice data packet, and sends, via a wireless network, the first voice data packet to the first user device.
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公开(公告)号:US20180198779A1
公开(公告)日:2018-07-12
申请号:US15912431
申请日:2018-03-05
Applicant: Amazon Technologies, Inc.
Inventor: Darren Ernest Canavor , Varadarajan Gopalakrishnan , Jesper Mikael Johansson , Jon Arron McClintock , Brandon William Porter , Andrew Jay Roths
IPC: H04L29/06 , H04W12/10 , H04W12/06 , B64C39/02 , H04W4/12 , H04B7/185 , G08G5/00 , G05D1/00 , H04L29/12 , G07C5/00
CPC classification number: H04L63/0823 , B64C39/02 , B64C39/024 , B64C2201/146 , G05D1/00 , G05D1/0027 , G07C5/00 , G08G5/00 , G08G5/0034 , G08G5/0039 , H04B7/185 , H04L29/12 , H04L63/123 , H04W4/12 , H04W12/06 , H04W12/10
Abstract: Two unmanned vehicles come within communication range of one another. The unmanned vehicles exchange logs of messages each has received. Each of the unmanned vehicles analyzes the messages that it received from the other unmanned vehicle to determine whether any of the received messages warrants changing a set of tasks it was planning to perform. When a message indicates that a task should be changed, the task is updated accordingly.
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公开(公告)号:US20180035146A1
公开(公告)日:2018-02-01
申请号:US15782113
申请日:2017-10-12
Applicant: Amazon Technologies, Inc.
IPC: H04N21/266
CPC classification number: H04N21/266 , H04H60/14 , H04H60/50 , H04H60/51 , H04N21/4524
Abstract: Disclosed are various embodiments for determining whether a client device is authorized to receive media content based at least in part on the call signs of broadcast stations that the client device is able to receive. A computing device receives a broadcast station identifier and a program identifier from a client computing device. The computing device determines that the client computing device is authorized to access media content identified by the program identifier based at least in part on the broadcast station identifier. Finally, the computing device streams the media content to the client computing device in response to determining that the client computing device is authorized to access the media content.
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公开(公告)号:US09813965B1
公开(公告)日:2017-11-07
申请号:US13718094
申请日:2012-12-18
Applicant: Amazon Technologies, Inc.
Inventor: Kiran Kumar Edara , Varadarajan Gopalakrishnan
IPC: H04W36/00 , H04W36/30 , H04W84/12 , H04W4/12 , H04W48/12 , H04W24/02 , H04W64/00 , H04W88/08 , H04W48/10 , H04W4/14 , H04W8/20 , H04W8/02 , H04W4/02 , H04W4/22 , H04W24/00 , H04W8/08 , H04W8/00 , H04W88/06 , H04W36/32 , H04W28/08 , H04W4/00 , H04W84/18 , H04W36/08 , H04W48/08
CPC classification number: H04W36/30 , H04W4/02 , H04W4/021 , H04W4/12 , H04W4/14 , H04W4/80 , H04W4/90 , H04W8/005 , H04W8/02 , H04W8/08 , H04W8/20 , H04W24/00 , H04W24/02 , H04W28/08 , H04W36/0061 , H04W36/0083 , H04W36/08 , H04W36/32 , H04W48/08 , H04W48/10 , H04W48/12 , H04W48/16 , H04W64/00 , H04W64/006 , H04W84/12 , H04W84/18 , H04W88/06 , H04W88/08 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164
Abstract: Approaches are described which enable a user equipment (UE) device (e.g., mobile phone, tablet computer) to measure signal strength of neighboring cells in a cellular network based at least in part on direction and/or location information of the UE device. The computing device may determine, based on location and/or direction information, that the device is moving away from a neighboring cell and either stop measuring the signal strength or reduce the rate of measuring the signal strength of that neighboring cell. This selective measuring can enable computing devices to conserve battery power and reduce processing overhead when moving between cells of a cellular network.
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公开(公告)号:US09295004B2
公开(公告)日:2016-03-22
申请号:US14331985
申请日:2014-07-15
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor: Varadarajan Gopalakrishnan , James Samuel Bowen , In Chul Hyun , David Woo
IPC: H04B7/00 , H01Q11/12 , H04B1/04 , H04W52/18 , H04B1/3827 , H04W52/36 , H01Q1/24 , H01Q21/28 , H04W52/22
CPC classification number: H04W52/18 , H01Q1/243 , H01Q1/245 , H01Q21/28 , H04B1/3838 , H04W52/228 , H04W52/36 , H04W52/367
Abstract: A user device receives a command to transmit information at a transmit power level specified by a wireless carrier. The user device determines whether transmitting the information at the specified transmit power level using a first duty cycle will cause the user device to violate a condition. Responsive to determining that transmitting the information at the specified transmit power level using the first duty cycle will cause the user device to violate the condition, the user device determines a new duty cycle that is lower than the first duty cycle, and transmits the information using the new duty cycle.
Abstract translation: 用户设备接收以由无线运营商指定的发射功率电平发送信息的命令。 用户设备确定使用第一占空比是否以指定的发射功率电平发送信息将导致用户设备违反条件。 响应于确定使用第一占空比以指定的发射功率电平发送信息将导致用户设备违反该条件,用户设备确定低于第一占空比的新占空比,并且使用 新的职责周期。
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