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公开(公告)号：US12069766B1
公开(公告)日：2024-08-20
申请号：US18114572
申请日：2023-02-27
Applicant: Amazon Technologies, Inc.
Inventor： Zhao Lou , QingYun Wei , Shao-Cheng Wang , Avinash Joshi , Zhen Xie , Xi Chen
Abstract: Techniques for establishing communication channels between user devices experiencing network connectivity issues and remote communication systems are described herein. The techniques include the use of a secondary device to act as a proxy, or a “middle man,” to facilitate the communications with the user device. A user device may detect lack of network connectivity, and begin broadcasting advertisement messages that indicate the lack of connectivity. A secondary device may detect the advertisement message, and send a discovery message to a connectivity system indicating that it detected the advertisement message. The connectivity system can provide this information to a remote communication system, and the remote communication system can establish a connection with the secondary device and instruct the secondary device to establish a connection with the user device. The remote communication system then has a communication channel with the user device, using the secondary device, to troubleshoot the user device.
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公开(公告)号：US10674331B1
公开(公告)日：2020-06-02
申请号：US16299744
申请日：2019-03-12
Applicant: Amazon Technologies, Inc.
Inventor： Rongsheng Huang , Shao-Cheng Wang , Jungtao Liu , Koohyun Um
Abstract: Technology for indoor location estimation of wireless stations is described. In one embodiment, a processing device identifies a plurality of wireless stations that support a signal round-trip-time measurement protocol. The processing device associates the plurality of wireless stations with one another to form a logical grouping of the plurality of wireless stations and provides an indication of the plurality of wireless stations in the logical grouping to each of the plurality of wireless stations. The processing device receives a first round-trip-time measurement value for a signal transmitted between a first wireless station and a second wireless station of the logical grouping and a second round-trip-time measurement value for a signal transmitted between the first wireless station and a third wireless station of the logical grouping. These round-trip-time measurement values indicate a distance between the wireless stations, respectively. The processing device determines, using the first distance and the second distance, a position of the first wireless station relative to the second wireless station and the third wireless station.
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3.发明授权公开(公告)号：US11888648B1
公开(公告)日：2024-01-30
申请号：US17956369
申请日：2022-09-29
Applicant: Amazon Technologies, Inc.
Inventor： Jian Lu , QingYun Wei , Shao-Cheng Wang , Avinash Joshi , Zhen Xie , Ankita Rajeev Chandrachud
IPC: H04L12/46 , H04L45/00 , H04L61/103 , H04L101/622 , H04L101/659
CPC classification number: H04L12/4625 , H04L45/66 , H04L61/103 , H04L2101/622 , H04L2101/659
Abstract: A softAP bridge is created to support a mesh network that also works seamlessly with any home Wi-Fi AP routers by using Layer-3 techniques to simulate a Layer-2 bridge. With this softAP bridge, Wi-Fi chipsets with integrated special Wi-Fi MAC Layer-2 mesh network support (e.g., 802.11s), or external gateway hubs, are not required. To accomplish this solution, one of the wireless devices may be designated as a relay device for communicating IPv6 data packets between a home AP router and the remaining wireless devices designated as client devices.
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公开(公告)号：US11671904B1
公开(公告)日：2023-06-06
申请号：US17020129
申请日：2020-09-14
Applicant: Amazon Technologies, Inc.
Inventor： QingYun Wei , Zhao Lou , Shao-Cheng Wang , Avinash Joshi , Xi Chen
CPC classification number: H04W48/14 , H04L67/02 , H04L67/56 , H04W4/80 , H04W12/06 , H04W76/12 , H04W76/15 , H04W84/12
Abstract: Techniques for establishing connections between user devices and headless devices attempting to connect to networks. A headless device may attempt to connect to an access point that requires interaction with a captive portal webpage for access to a network. However, the headless device my lack a display to present the captive portal webpage. The headless device may establish a connection with a user device using a PAN protocol. The headless device may then receive the captive portal webpage received from the access point, and relay the webpage to the user device using the PAN protocol. A user may use the user device to interact with the captive portal webpage, and the user device may then relay interaction data back to the headless device using the PAN protocol. The headless device may then provide that interaction data to the access point to be provided access to the network.
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公开(公告)号：US11621992B1
公开(公告)日：2023-04-04
申请号：US17132252
申请日：2020-12-23
Applicant: Amazon Technologies, Inc.
Inventor： Ravi Ichapurapu , Sameet Ramakrishnan , Shao-Cheng Wang , Qinghai Gao
Abstract: This disclosure describes, in part, techniques for switching between communication channels in order to reduce latency of data transmissions. For instance, an electronic device may establish a first network connection with a network device and second network connection(s) with other electronic device(s). The electronic device may then send data received from the network device to the other electronic device(s). In some circumstances, the electronic device may establish a new network connection with the network device, such as on a different communication channel and/or use a different network band. In such circumstances, the electronic device may use one or more techniques to establish new network connections(s) with the other electronic device(s) in order to reduce the latency it takes to send the data received from the network device to the other electronic device(s).
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Patent Agency Ranking
公开(公告)号：US09894604B1
公开(公告)日：2018-02-13
申请号：US14665814
申请日：2015-03-23
Applicant: Amazon Technologies, Inc.
Inventor： Binh Quoc Tran , Jin Guo , Shengwei Zhang , Shao-Cheng Wang
Abstract: Approaches enable a device capable of wireless communication, such as a device having a wireless adapter, to automatically select and connect to an available wireless access point (AP) having favorable performance, security, and/or other attributes that may be ascertained through various parameters, despite the wireless AP not being the last-known and/or last-connected-to wireless AP. The wireless-enabled device may determine the wireless AP to connect to in a number of ways, such as by determining all available wireless APs in the vicinity of the device and identifying, ranking and/or scoring the parameters for some or all of the available wireless APs to determine a ranking of the wireless APs. Once a favorable wireless AP is identified, the device may automatically attempt to connect to the wireless AP. If the wireless AP is not available, the device may automatically attempt to connect to the next wireless AP in the ranked list, etc.
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公开(公告)号：US11089183B1
公开(公告)日：2021-08-10
申请号：US16546245
申请日：2019-08-20
Applicant: Amazon Technologies, Inc.
Inventor： Michael Alan Pogue , Shao-Cheng Wang
IPC: H04N21/4425 , H04N21/6375 , H04N21/647 , H04N5/04 , H04N21/439 , H04N21/43
Abstract: Systems and methods for adaptive information packet transmission are disclosed. For example, one or more backup packets may be generated for a given data packet and a packet-spacing value and/or packet-sending order may be determined based at least in part on packet-loss data and/or other factors. The data packets and backup packets may be sent according to the packet-spacing value and packet-sending order, and feedback data may be provided by the receiving device. The feedback data may be utilized by the sending device to adapt the packet transmission parameters.
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公开(公告)号：US11595804B1
公开(公告)日：2023-02-28
申请号：US16884992
申请日：2020-05-27
Applicant: Amazon Technologies, Inc.
Inventor： Zhao Lou , QingYun Wei , Shao-Cheng Wang , Avinash Joshi , Zhen Xie , Xi Chen
Abstract: Techniques for establishing communication channels between user devices experiencing network connectivity issues and remote communication systems are described herein. The techniques include the use of a secondary device to act as a proxy, or a “middle man,” to facilitate the communications with the user device. A user device may detect lack of network connectivity, and begin broadcasting advertisement messages that indicate the lack of connectivity. A secondary device may detect the advertisement message, and send a discovery message to a connectivity system indicating that it detected the advertisement message. The connectivity system can provide this information to a remote communication system, and the remote communication system can establish a connection with the secondary device and instruct the secondary device to establish a connection with the user device. The remote communication system then has a communication channel with the user device, using the secondary device, to troubleshoot the user device.
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公开(公告)号：US11184949B1
公开(公告)日：2021-11-23
申请号：US16849673
申请日：2020-04-15
Applicant: Amazon Technologies, Inc.
Inventor： Yufeng Wang , Shao-Cheng Wang , Qinghai Gao
Abstract: Technologies directed to Dynamic Frequency Selection (DFS) channel assessment mechanisms are described. A processing device of a first wireless device identifies a channel identifier corresponding to a first operating channel being used by a first radio of the first wireless device to communicate with a first access point (AP) enabled on a radio of a second wireless device. The processing device identifies multiple devices in proximity to the first wireless device using a second radio. The processing device determines an airtime utilization percentage value for each operating channel of the second radio and determines a number of radar events for each DFS channel. The processing device determines a second channel identifier having a fewest number of radar events and selects a second operating channel for a second AP on the second radio, the second channel corresponding to the second operating channel.
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公开(公告)号：US10574316B1
公开(公告)日：2020-02-25
申请号：US15987684
申请日：2018-05-23
Applicant: Amazon Technologies, Inc.
Inventor： Ravi Ichapurapu , Shao-Cheng Wang , Vipul Jain , Kun Ting Tsai , Milos Jorgovanovic , Chirag Saurabh Bhavsar , Vinay Gotnakodlu Hegde
IPC: H04B7/06 , H04W4/80 , H04W8/00 , H04B17/318 , H04W84/12
Abstract: A device includes a first radio controller, a second radio controller, and a processor. The processor is configured to execute instructions for determining that a first signal strength of a signal received from a remote device by a first antenna electrically connected to the first radio controller is less than a minimum signal strength threshold for communications using the first antenna, identifying a network process configured to communicate with a remote device using the first radio controller or the second radio controller, and determining that the processor is not executing the network process. The processor is further configured to execute instructions for, determining a second signal strength of a second signal received from the remote device by a second antenna, determining the second signal strength is greater than the first signal strength, and causing the first radio controller to communicate using the second antenna.
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