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1.发明申请公开(公告)号：US20190020713A1
公开(公告)日：2019-01-17
申请号：US15650038
申请日：2017-07-14
Applicant: Amazon Technologies, Inc.
Inventor： Troy Hulick , In Chul Hyun , Tzung-I Lee
Abstract: An electronic device includes a metal housing having a height greater than a width, four sides that form an inner chamber in a center thereof. Four sidewalls extend from a first back wall form a first chamber located at a first of the four sides. Four sidewalls extend from a second back wall form a second chamber located at a second of the four sides. A first antenna is disposed in the first chamber. A second antenna is disposed in the second chamber. A circuit board is disposed within the inner chamber and oriented longitudinally from a bottom of the inner chamber. A first radio is disposed on the circuit board and coupled to the first antenna. A second radio is disposed on the circuit board and coupled to the second antenna, such that the second antenna is electrically isolated from the first antenna.
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公开(公告)号：US09991914B1
公开(公告)日：2018-06-05
申请号：US15595538
申请日：2017-05-15
Applicant: Amazon Technologies, Inc.
Inventor： Tzung-I Lee , Omar Fawazhashim Zakaria , Cheol Su Kim , Varadarajan Gopalakrishnan , In Chul Hyun
CPC classification number: H04B1/0475 , H04B1/0092 , H04W52/52 , H04W84/18
Abstract: Technology for a bi-directional radio frequency front-end (RFFE) architecture with high selectivity performance is described. One RFFE has a first mixer that receives a LO signal from the LO circuit and a transmit (TX) signal, having a first frequency, from a transmitter and produces a down-converted TX signal for channel bandwidth filtering, the TX signal having a second frequency that is lower than the first frequency. A programmable filter circuit, in response to a selection signal, filters the down-converted TX signal according to a selected channel bandwidth. The second mixer receives the LO signal from the LO circuit and a channel-filtered TX signal from the programmable filter circuit and produces an up-converted TX signal having the first frequency. The power amplifier amplifies the up-converted TX signal to produce an output TX signal to cause an antenna to radiate electromagnetic energy in the selected channel bandwidth.
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公开(公告)号：US09887708B2
公开(公告)日：2018-02-06
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
IPC: H04W88/10 , H04B1/00 , H04M1/02 , H01Q5/30 , H01Q1/24 , H01Q1/50 , H01Q21/29 , H04L29/08 , H04W40/02 , H04W84/22 , H01Q19/10 , H01Q19/185 , H01Q21/20 , H01Q21/24 , H01Q21/28 , H04W84/12 , H04W84/18
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：US20170223090A1
公开(公告)日：2017-08-03
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
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.
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公开(公告)号：US09698857B1
公开(公告)日：2017-07-04
申请号：US14632929
申请日：2015-02-26
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , Koohyun Um , In Chul Hyun , Mercyma Deeba Balachandran
CPC classification number: H04B1/401 , H01Q5/00 , H01Q7/00 , H01Q9/30 , H04B7/0413 , H04B7/0693 , H04W84/12 , H04W88/06
Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes an antenna element that is self-resonant at a first frequency in a first mode and self-resonant at a second frequency in a second mode. A radio frequency (RF) is coupled between the antenna element and a ground plane. A RF circuit, coupled to the antenna element via an RF feed, is operable to control the RF switch to switch the antenna element between the first mode and the second mode. The RF circuit is operable to cause the antenna element to radiate or receive electromagnetic energy in a first radiation pattern in the first mode and to radiate or electromagnetic energy in a second radiation pattern in the second mode.
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Patent Agency Ranking
公开(公告)号：US09307499B2
公开(公告)日：2016-04-05
申请号：US14567721
申请日：2014-12-11
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Gregg Zehr , Subram Narasimhan , Varadarajan Gopalakrishnan , David C. Buuck , John Depew , In Chul Hyun
CPC classification number: H04W52/18 , H01Q1/243 , H01Q1/245 , H01Q21/28 , H04B1/3838 , H04W52/228 , H04W52/36 , H04W52/367
Abstract: A user device transmits data at a first transmit power level. The user device detects a presence of a human body part within a predetermined distance from an antenna of the user device using one or more sensors disposed at a back side of the user device. In response to the detection of the presence of the human body part, the user device transmits information at a second transmit power level that is less than the first transmit power level.
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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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公开(公告)号：US10075198B1
公开(公告)日：2018-09-11
申请号：US15085653
申请日：2016-03-30
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , Varadarajan Gopalakrishnan , Cheol Su Kim , In Chul Hyun
IPC: H04B1/00 , H04B7/0413 , H04W84/12
CPC classification number: H04B1/0057 , H04B7/0413 , H04W84/12 , H04W88/06
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 first diplexer, a second diplexer, a third diplexer, a fourth diplexer, and a switch. A first transceiver is coupled to a first antenna via the first diplexer and the second diplexer. The third receiver is coupled to the first antenna via the first diplexer. The second transceiver is selectively coupled to a second antenna via the third diplexer, the switch, and the fourth diplexer when the switch is set to the first mode in response to the control signal from a processing component. The first transceiver is selectively coupled to the second antenna via the switch and the third diplexer when the switch is set to the first mode in response to the control signal from the processing component.
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公开(公告)号：US09786994B1
公开(公告)日：2017-10-10
申请号：US14221136
申请日：2014-03-20
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Tzung-I Lee , Cheol Su Kim , In Chul Hyun
CPC classification number: H01Q21/0006 , H01Q1/243 , H01Q5/335 , H01Q5/342 , H01Q9/0421 , H01Q21/28 , H01Q25/04
Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a first radio frequency (RF) feed, a second RF feed and an antenna structure. The antenna structure includes a ground plane, a first antenna element coupled to the first RF feed, a second antenna element coupled to the second RF feed and coupled to the ground plane at a first grounding point located at a distal end of the second antenna element. The first antenna element operates as a first directly-fed element and the second antenna element operates as a first parasitic ground element when RF signals in a first frequency range are applied to the first RF feed. The second antenna element operates as a second directly-fed element when RF signals in a second frequency range are applied to the second RF feed, the second frequency range being higher than the first frequency range. The first antenna element is grounded by the RF short circuit when the RF signals in the second frequency range are applied to the second RF feed.
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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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