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公开(公告)号：US11570632B1
公开(公告)日：2023-01-31
申请号：US15926778
申请日：2018-03-20
Applicant: Amazon Technologies, Inc.
Inventor： Ravi Ichapurapu , Morris Yuanhsiang Hsu , Milos Jorgovanovic , Pratik Kalpesh Patel
Abstract: A computer-implemented method includes receiving, from an application framework, a set of tasks, a throughput requirement for each task of the set of tasks, and a set of active connections for a radio network comprising a Wi-Fi radio and a Zigbee radio. The computer-implemented method also includes determining, using the set of tasks, the throughput requirement for each task of the set of tasks, and the set of active connections, a target Wi-Fi radio duty cycle and setting the Wi-Fi radio to operate at the target Wi-Fi radio duty cycle. The computer-implemented method further includes monitoring, using a monitoring unit, air time statistics associated with the Wi-Fi radio, determining, using the air time statistics, a measured Wi-Fi duty cycle, and adjusting Wi-Fi radio settings to decrease a difference between the target Wi-Fi duty cycle and the measured Wi-Fi duty cycle.
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公开(公告)号：US10117288B1
公开(公告)日：2018-10-30
申请号：US15385758
申请日：2016-12-20
Applicant: Amazon Technologies, Inc.
Inventor： Jay Praful Desai , Pratik Kalpesh Patel , Qinghai Gao , Morris Yuanhsiang Hsu , Ateet Kapur , Milos Jorgovanovic
Abstract: Techniques for harmonizing wireless communications performed by a computing device which communicates using varying wireless communication standards are described herein. For instance, a computing device may include multiple chipsets with associated antennas that are configured to perform wireless communications using separate wireless standards which operate at overlapping frequencies. To avoid performance degradation experienced in simultaneous use cases with communications operating at overlapping frequencies, the multiple chipsets may be configured with logic to determine which communications are prioritized when multiple chipsets attempt to communicate simultaneously. The multiple chipsets may be communicatively coupled to coordinate their communications by prioritizing certain types of communications over other types of communications to avoid simultaneous communications in overlapping frequencies. In this way, multiple chipsets that communicate using different standards at overlapping frequencies may avoid performance issues experienced in simultaneous use cases, while performing the communications which are of a highest priority level.
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公开(公告)号：US09484631B1
公开(公告)日：2016-11-01
申请号：US14557423
申请日：2014-12-01
Applicant: Amazon Technologies, Inc.
Inventor： Adrian Napoles , Ulf Jan Ove Mattsson , Anuj Dron , Tzung-I Lee , Daejoung Kim , Morris Yuanhsiang Hsu , Seng Chin Tai
Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a single radio frequency (RF) feed and a folded monopole element coupled to the single RF feed. The folded monopole element is an integrated WAN/GNSS antenna that receives electromagnetic energy in a first frequency band and receives electromagnetic energy in a second frequency band. The first frequency band is a wireless area network (WAN) frequency band and the second frequency band is a global navigation satellite system (GNSS) frequency band. The apparatus further includes an impedance matching circuit coupled to the single RF feed. The impedance matching circuit includes a diplexer to extract out GNSS frequency signals received by the folded monopole element from WAN signals received by the folded monopole element.
Abstract translation: 描述了天线结构和操作电子设备的方法。 一种装置包括单个射频（RF）馈送和耦合到单个RF馈送的折叠单极子元件。 折叠的单极子元件是在第一频带中接收电磁能并在第二频带中接收电磁能的集成WAN / GNSS天线。 第一频带是无线区域网络（WAN）频带，第二频带是全球导航卫星系统（GNSS）频带。 该装置还包括耦合到单个RF馈送的阻抗匹配电路。 阻抗匹配电路包括双工器，以从由折叠的单极元件接收的WAN信号中提取由折叠单极元件接收的GNSS频率信号。
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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
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.
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15.发明授权公开(公告)号：US11152966B1
公开(公告)日：2021-10-19
申请号：US16566598
申请日：2019-09-10
Applicant: Amazon Technologies, Inc.
Inventor： Basak Oyman , Sai Prashanth Chinnapalli , Morris Yuanhsiang Hsu
IPC: H04B1/00 , H04B1/10 , H04L5/14 , H04B1/04 , H04B1/16 , H04B1/525 , H04B1/715 , H04B15/00 , H04B1/7097 , H04B1/719 , H04B1/7107 , H04J11/00 , H04W4/80 , H04W84/12 , H04B1/62 , H04B1/12
Abstract: Technologies directed to digital active interference cancellation (d-AIC) for full duplex transmit-receive (TX-RX) concurrency. An integrated circuit can include first and second analog front-ends (AFE) and digital front-end (DFE) circuits and a digital AIC circuit that generates a scaled and delayed replica of a first quadrature (IQ) sample corresponding to first data transmitted by the first AFE circuit which is being coupled into the receiver as aggressor. The digital AIC circuit receives a second IQ sample from the second AFE circuit, the second IQ sample corresponding to second data being received by the second AFE circuit. The digital AIC circuit subtracts the scaled and delayed replica of the first IQ sample from the second IQ sample to obtain a third IQ sample and sends the third IQ sample to the second DFE circuit. Third IQ sample is the desired signal when d-AIC cancels the self-interference.
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Patent Agency Ranking
公开(公告)号：US10985850B1
公开(公告)日：2021-04-20
申请号：US16218211
申请日：2018-12-12
Applicant: Amazon Technologies, Inc.
Inventor： Ravi Ichapurapu , Sameet Ramakrishnan , Morris Yuanhsiang Hsu
IPC: H04H20/18 , H04W56/00 , H04W4/80 , G06F3/16 , H04H20/22 , H04H20/71 , G10L15/22 , H04W92/22 , H04W84/12 , H04W80/02
Abstract: A system includes a media distribution device including a first network interface, a second network interface, and a first processor. The first processor configures the first network interface to use a first communication network, and broadcasts, using the first communication network, audio data. The system includes a media device including a third network interface, a fourth network interface, and a second processor. The second processor causes, using the third network interface, the media device to join the first communication network, receives, using the third network interface, a first portion of the audio data, processes the first portion of the audio data to generate first audio output, and transmits, using the fourth network interface, a control signal to the second network interface of the media distribution device. The control signal is configured to cause the first processor to modify an attribute of the audio data or stop broadcasting the audio data.
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公开(公告)号：US10243864B1
公开(公告)日：2019-03-26
申请号：US15403036
申请日：2017-01-10
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Milos Jorgovanovic , Jin Guo , Morris Yuanhsiang Hsu
IPC: H04W4/06 , H04L12/825 , H04L29/06 , H04L12/26
Abstract: Described are techniques for modifying the data rate used to transmit audio data from a master device to slave devices. After receiving a signal, each slave device requests transmission of one or more packets and reports an individual error rate. A cumulative error rate may also be determined based on the individual error rates and the retransmission requests. If any individual error rate or the cumulative error rate exceeds a maximum threshold, the data rate used to transmit the audio data is decreased. If an individual error rate is less than a minimum threshold, the data rate may be increased. If an error rate exceeds a critical threshold, the data rate may be reduced to a minimum value supported by the devices.
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公开(公告)号：US09929753B1
公开(公告)日：2018-03-27
申请号：US15385807
申请日：2016-12-20
Applicant: Amazon Technologies, Inc.
Inventor： Morris Yuanhsiang Hsu , Pratik Kalpesh Patel , Qinghai Gao , Ateet Kapur , Milos Jorgovanovic , Jay Praful Desai , Jin Guo , King Shaw
CPC classification number: H04B1/0064 , H04B7/26
Abstract: Techniques for harmonizing wireless communications performed by a computing device which communicates using varying wireless communication standards are described herein. For instance, a computing device may include multiple chipsets with associated antennas that are configured to perform wireless communications using separate wireless standards which operate at overlapping frequencies. To avoid performance degradation experienced in simultaneous use cases with communications operating at overlapping frequencies, the multiple chipsets may be configured with logic to determine which communications are prioritized when multiple chipsets attempt to communicate simultaneously. The multiple chipsets may be communicatively coupled to coordinate their communications by prioritizing certain types of communications over other types of communications to avoid simultaneous communications in overlapping frequencies. In this way, multiple chipsets that communicate using different standards at overlapping frequencies may avoid performance issues experienced in simultaneous use cases, while performing the communications which are of a highest priority level.
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公开(公告)号：US12298430B1
公开(公告)日：2025-05-13
申请号：US17653271
申请日：2022-03-02
Applicant: Amazon Technologies, Inc.
Inventor： Karthik Kumar , Morris Yuanhsiang Hsu , Tianchen Li
Abstract: Technologies for temperature gain control on radar units are described. A method includes determining a first value for an internal operating temperature corresponding to a steady-state of a radar unit. The method further includes causing the radar unit to operate in a first mode that heats the radar unit. The method further includes obtaining a second value for the internal operating temperature at a first time in the first mode and determining a third value indicating a measurement bias associated with the radar unit. The method further includes determining a fourth value using the second value and the third value. The fourth value indicates an updated internal operating temperature of the radar unit. The method further includes determining that the fourth value satisfies a threshold temperature condition corresponding to the first value. The method further includes causing the radar unit to stop operating in the first mode.
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公开(公告)号：US11703986B1
公开(公告)日：2023-07-18
申请号：US17546787
申请日：2021-12-09
Applicant: Amazon Technologies, Inc.
Inventor： Morris Yuanhsiang Hsu , Durgaprasad Kashinath Shamain
CPC classification number: G06F3/046 , G06F3/0412
Abstract: Technologies for detecting touch events on, or hover events above, a surface of an electronic device using radar units instead of integrated capacitive touch sensing technologies, are described. An electronic device includes a display located along a first plane. The electronic further includes a first radar unit coupled to the display. The first radar unit is oriented and comprises a first field-of-view (FoV) along a portion of the first plane. The electronic device further includes a processor coupled to the first radar unit. From the first radar unit, the processor receives first data that indicates a first object detection corresponding to a first location. The processor further determines, using the first data, a touch event associated with the display.
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