公开(公告)号：US11388573B1

公开(公告)日：2022-07-12

申请号：US16865117

申请日：2020-05-01

Applicant: Amazon Technologies, Inc.

Inventor： Morris Yuanhsiang Hsu ,  In Chul Hyun ,  Naman B. Barmecha

IPC: H04B7/00 ,  H04W4/80 ,  H04B5/02 ,  G06Q20/32

Abstract: Devices, systems, and methods are provided for enhanced near-field communications for wireless devices. A processor of a first device may send a first Bluetooth communication at a first signal strength. The processor may receive a first indication of activity associated with a near field communication (NFC) device of the first device, wherein the processor and the NFC device are collocated on the first device. The processor may determine a second signal strength associated with a second Bluetooth communication, the second signal strength less than the first signal strength. The processor may receive a second indication that the activity associated with the NFC device has concluded. The processor may decrease a power supplied to the NFC device.

公开(公告)号：US11218203B1

公开(公告)日：2022-01-04

申请号：US16776235

申请日：2020-01-29

Applicant: Amazon Technologies, Inc.

Inventor： Tzung-I Lee ,  Kun Ting Tsai ,  Haritha Tamvada ,  Kwok Shing Lee ,  Cheol Su Kim ,  Omar Fawazhashim Zakaria ,  In Chul Hyun ,  Ali Mirkamali ,  Dan Richard Brukwinski

IPC: H04B7/06 ,  H04B7/0413 ,  H01Q3/34 ,  H04W88/02 ,  H04W84/12

Abstract: Technologies directed to coordinated dynamic analog beamforming are described. One method includes receiving, by a digital controller of a first wireless device, a data packet, the data packet comprising a destination address of a second wireless device. The method further includes retrieving, from memory, beamformer configuration data associated with the destination address, the beamformer configuration data comprising a phase shifter angle value for a radiation pattern. The method sends, to a beamformer circuit, the phase shifter angle value, the beamformer circuit comprises a power splitter and a set of phase shifters (e.g., at least four). The method causes the set of phase shifters to steer the radiation pattern of electromagnetic energy, radiated by an antenna array of elements, at the phase shifter angle value and sends the data packet to the second wireless device via the antenna array.

公开(公告)号：US11196155B1

公开(公告)日：2021-12-07

申请号：US16713901

申请日：2019-12-13

Applicant: Amazon Technologies, Inc.

Inventor： Mohammed Ziaul Azad ,  Chen Chen ,  Amit Gaikwad ,  In Chul Hyun

IPC: H01Q1/52 ,  H04B1/3827 ,  A63F13/327 ,  H01Q1/22 ,  H01Q1/38 ,  H04B1/00

Abstract: Devices, systems, and methods are provided for improving antenna isolation for collocated antennae. A device may include a first radio associated with a first antenna to transmit and receive first wireless signals using a first wireless communication technique. The device may include associated with a second antenna to transmit and receive second wireless signals using a second wireless communication technique. The device may include a multi-antenna isolation structure having a first portion and a second portion separated from the first portion, the first portion and the second portion are able to prevent the first antenna from receiving a portion of current associated with the second antenna.

公开(公告)号：US11134298B2

公开(公告)日：2021-09-28

申请号：US15986503

申请日：2018-05-22

Applicant: Amazon Technologies, Inc.

Inventor： Jagan Vaidyanathan Rajagopalan ,  Ming-Wei Liu ,  Peruvemba Ranganath Sai Ananthanarayanan ,  In Chul Hyun ,  Mohammed Ziaul Azad ,  Deepak Pai Hosadurga ,  Sudheep Thota

IPC: H01Q1/38 ,  H01Q21/24 ,  H01Q9/04 ,  H04N21/426 ,  H04N21/414

Abstract: A device includes a substrate and a video processor on the substrate. A first patch antenna is mounted to the substrate and configured to transmit and receive radio frequency signals in a frequency range. The first patch antenna is closer to a first end of the substrate than a second end of the substrate. A second patch antenna is mounted to the substrate and is configured to transmit and receive radio frequency signals in the frequency range. The second patch antenna is closer to the first end of the substrate than the second end of the substrate. The substrate includes a ground isolation region between at least one of the first patch antenna and the second patch antenna and the video processor. A media connector is on the substrate and electrically connected to the video processor.

公开(公告)号：US20200021038A1

公开(公告)日：2020-01-16

申请号：US16034938

申请日：2018-07-13

Applicant: Amazon Technologies, Inc.

Inventor： Tzung-I Lee ,  Omar Fawazhashim Zakaria ,  Kwok Shing Lee ,  Kalyan Teja Posani ,  Ali Mirkamali ,  Cheol Su Kim ,  In Chul Hyun

IPC: H01Q19/00 ,  H01Q9/04

Abstract: Technologies for wireless network devices with surface-link antenna systems mounted on exterior surfaces of buildings are described. One wireless network device includes a housing with a circuit board and a first antenna port. A processor, a first antenna, a first wireless local area network (WLAN) radio, and a second WLAN radio are disposed on the circuit board. The first WLAN radio communicates with a radio of a client device using the first antenna over a first line-of-sight (LOS) or non-LOS wireless link (e.g., 2.4 GHz) inside the building. The second WLAN radio communicates with a radio of a second wireless network device using the second antenna over a second LOS wireless link (e.g., 5 GHz) that is external to the building. The first antenna is located inside the building and the second antenna is located along an exterior surface of the building.

公开(公告)号：US10523247B2

公开(公告)日：2019-12-31

申请号：US15154327

申请日：2016-05-13

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Varadarajan Gopalakrishnan ,  Andrew David Price ,  In Chul Hyun ,  Jin Dong Kim ,  Subram Narasimhan

IPC: H04L29/08 ,  H04B1/00 ,  H04M1/02 ,  H01Q5/30 ,  H01Q1/24 ,  H01Q1/50 ,  H01Q21/29 ,  H04W40/02 ,  H04W84/22 ,  H01Q19/10 ,  H01Q19/185 ,  H01Q21/20 ,  H01Q21/24 ,  H01Q21/28 ,  H04W84/12 ,  H04W84/18

Abstract: Wireless mesh network (WMN) architectures of network hardware devices organized in a mesh topology 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 is described. A self-contained, fully connected WMN can be used for localized delivery of content files. One WMN includes a single ingress node for ingress of content files into the wireless mesh network. The WMN also includes multiple network hardware devices wirelessly connected through a network backbone formed by multiple P2P wireless connections. A first network hardware device is wirelessly connected to a client consumption device by a first node-to-client (N2C) wireless connection and a second network hardware device is wirelessly connected to the single ingress node.

公开(公告)号：US10361490B1

公开(公告)日：2019-07-23

申请号：US14968682

申请日：2015-12-14

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Tzung-I Lee ,  In Chul Hyun

IPC: H01Q21/29 ,  H01Q1/50 ,  H01Q5/42 ,  H01Q5/30 ,  H01Q1/24

Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a radio coupled to a RF feed and an RF switch, a first antenna element coupled to the RF feed, and a second antenna element coupled to the RF switch, the RF switch being coupled to a grounding point of a ground plane. The radio controls the RF switch between a first mode and a second mode. The radio causes the first antenna element to radiate electromagnetic energy in a first radiation pattern in the first mode and causes the second antenna element to radiate electromagnetic energy in a second radiation pattern in the second mode. The second radiation pattern is different than the first radiation pattern.

公开(公告)号：US20190020714A1

公开(公告)日：2019-01-17

申请号：US15650059

申请日：2017-07-14

Applicant: Amazon Technologies, Inc.

Inventor： Tzung-I Lee ,  Troy Hulick ,  In Chul Hyun

IPC: H04L29/08 ,  H01Q1/24 ,  H01Q1/50 ,  H04W40/02 ,  H01Q21/29

Abstract: An apparatus includes an elongated housing having a first plurality of sidewalls that form a first isolation chamber on a first side of the elongated housing. A first printed circuit board (PCB) includes a first patch element, wherein the PCB defines a first plane. A first parasitic element disposed in a second plane, wherein the first parasitic element is retained a predetermined distance from the first patch element in the first plane. A second PCB is disposed within the elongated housing. A first radio is disposed on the second PCB, wherein the first radio is coupled to the first patch element, and wherein the first patch element and the first parasitic element, in response to radio frequency (RF) signals from the first radio, radiate electromagnetic energy in a first direction away from the first isolation chamber.

公开(公告)号：US09391362B1

公开(公告)日：2016-07-12

申请号：US13764217

申请日：2013-02-11

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Cheol Su Kim ,  In Chul Hyun ,  Tzung-I Lee

IPC: H01Q1/36

CPC classification number: H01Q1/243 ,  H01Q5/328 ,  H01Q5/378 ,  H01Q5/385 ,  H01Q7/00

Abstract: Antenna structures and methods of operating the same of a configurable antenna of an electronic device are described. A configurable antenna includes a first antenna element coupled to a radio frequency (RF) feed, a controllable circuit coupled to the first antenna element and a second antenna element coupled to the controllable circuit. The controllable circuit is configured to electrically isolate the first antenna element and the second antenna element to configure the antenna structure to operate in a first antenna configuration having a first length and to electrically connect the first antenna element and the second antenna element to configure the antenna structure to operate in a second antenna configuration having a second length.

Abstract translation: 描述了操作与电子设备的可配置天线相同的天线结构和方法。 可配置天线包括耦合到射频（RF）馈电的第一天线元件，耦合到第一天线元件的可控电路和耦合到可控电路的第二天线元件。 可控电路被配置为将第一天线元件和第二天线元件电隔离，以将天线结构配置为以具有第一长度的第一天线配置工作，并且将第一天线元件和第二天线元件电连接以配置天线 结构以具有第二长度的第二天线配置操作。

公开(公告)号：US09331835B1

公开(公告)日：2016-05-03

申请号：US14220017

申请日：2014-03-19

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Tzung-i Lee ,  Varadarajan Gopalakrishnan ,  Cheol Su Kim ,  In Chul Hyun

IPC: H04L5/00 ,  H04L5/08 ,  H04W88/06

CPC classification number: H04W88/06 ,  H04B1/0057

Abstract: Radio frequency (RF) front-end circuitry and methods of operating the same are described. One apparatus includes multiple antennas and a RF front-end circuitry. The RF front-end circuitry includes: a selection switch coupled to a second antenna, a first RF transceiver coupled to a first antenna and selectively coupled to the second antenna via the selection switch; a second RF receiver coupled to the first antenna; and a third RF transceiver selectively coupled to the second antenna via the selection switch. The first antenna receives signals for the first RF transceiver and the second RF receiver. The selection switch selectively couples the second antenna to the first RF transceiver in a first mode of the RF front-end circuitry and selectively couples the second antenna to the third RF transceiver in a second mode of the RF front-end circuitry.

Abstract translation: 描述射频（RF）前端电路及其操作方法。 一种装置包括多个天线和RF前端电路。 RF前端电路包括：耦合到第二天线的选择开关，耦合到第一天线并经由选择开关选择性地耦合到第二天线的第一RF收发器; 耦合到所述第一天线的第二RF接收器; 以及经由所述选择开关选择性地耦合到所述第二天线的第三RF收发器。 第一天线接收用于第一RF收发器和第二RF接收器的信号。 所述选择开关在所述RF前端电路的第一模式中选择性地将所述第二天线耦合到所述第一RF收发器，并且在所述RF前端电路的第二模式中选择性地将所述第二天线耦合到所述第三RF收发器。