公开(公告)号：US09924438B1

公开(公告)日：2018-03-20

申请号：US14742994

申请日：2015-06-18

Applicant: Amazon Technologies, Inc.

Inventor： Jin Guo ,  Binh Quoc Tran ,  Shengwei Zhang ,  Jay William Kruse

IPC: H04B7/00 ,  H04W36/30 ,  H04W72/08 ,  H04W36/14 ,  H04W76/04 ,  H04W88/02 ,  H04W88/08 ,  H04W84/02

CPC classification number: H04W36/30 ,  H04W36/14 ,  H04W48/20 ,  H04W76/20 ,  H04W84/02 ,  H04W88/02

Abstract: Devices, systems and methods are disclosed for allowing a mobile device to roam from a first frequency band to a second frequency band for a dual band access point when a signal strength associated with the first frequency band improves. For example, the mobile device may store a first signal strength associated with the first frequency band when the mobile device first connects to the first frequency band and may monitor subsequent signal strengths to determine if they exceed the first signal strength. When a subsequent signal strength exceeds the first signal strength, the mobile device may use this as an indication that the mobile device is closer to the access point and within range of the second frequency band. The mobile device may then detect and connect to the second frequency band.

公开(公告)号：US09865920B1

公开(公告)日：2018-01-09

申请号：US14470713

申请日：2014-08-27

Applicant: Amazon Technologies, Inc.

Inventor： Jerry Weiming Kuo ,  Ming Zheng ,  Jay William Kruse

IPC: H01Q5/00 ,  H01Q21/28 ,  H01Q1/52

CPC classification number: H01Q5/0034 ,  H01Q1/2266 ,  H01Q1/2291 ,  H01Q1/523 ,  H01Q5/321 ,  H01Q9/14 ,  H01Q21/28

Abstract: An apparatus includes a first reactive component coupled between a first antenna and a second antenna in a multi-band antenna system. The apparatus further includes a first operation circuit coupled to the first reactive component. The first reactive component and the first operation circuit together form a signal path to enable signal flow between the first and the second antennas when the first and the second antennas are operating at a first frequency. The first operation circuit disables signal flow along the signal path when the first and the second antennas are operating at a second frequency.

公开(公告)号：US09497680B1

公开(公告)日：2016-11-15

申请号：US14743029

申请日：2015-06-18

Applicant: Amazon Technologies, Inc.

Inventor： Binh Quoc Tran ,  Jin Guo ,  Shengwei Zhang ,  Jay William Kruse

IPC: H04W36/24 ,  H04W36/08 ,  H04W36/14 ,  H04W88/06 ,  H04W36/30

CPC classification number: H04W36/14 ,  H04L1/00 ,  H04W36/30 ,  H04W88/06

Abstract: Devices, systems and methods are disclosed for allowing a mobile device to connect to a network based on data rates. For example, the mobile device may select from available networks based on data rates associated with the available networks. In addition, the mobile device may determine to roam from a current network based on data rates. For example, the mobile device may roam when an expected throughput exceeds an actual throughput or when an anticipated throughput requirement exceeds the actual throughput.

Abstract translation: 公开了用于允许移动设备基于数据速率连接到网络的设备，系统和方法。 例如，移动设备可以基于与可用网络相关联的数据速率从可用网络中进行选择。 此外，移动设备可以基于数据速率来确定从当前网络漫游。 例如，当预期吞吐量超过实际吞吐量或当预期吞吐量需求超过实际吞吐量时，移动设备可能漫游。

公开(公告)号：US09407003B1

公开(公告)日：2016-08-02

申请号：US14288283

申请日：2014-05-27

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Jay William Kruse ,  Joseph Christopher Modro ,  Ming Zheng ,  Jerry Weiming Kuo

IPC: H01Q1/24 ,  H01Q1/48 ,  H01Q1/52 ,  H01Q1/50 ,  H01Q9/04

CPC classification number: H01Q1/48 ,  H01Q1/242 ,  H01Q1/245 ,  H01Q1/50 ,  H01Q5/328 ,  H01Q5/335 ,  H01Q9/0407 ,  H01Q9/42

Abstract: Antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a radio frequency (RF) including a surface-current dispersing circuit and an antenna structure coupled to the RF feed at a feeding point and coupled to a ground plane at a grounding point. The antenna structure comprises an even multiple of quarter-wavelength elements with a first element coupled to the feeding point and a second element coupled to the grounding point and the grounding point is located at a specified distance from the feeding point. Surface currents, generated as a result of the RF signals being applied to the RF feed at the feeding point, create a first hot spot of an even multiple of hot spots of magnetic field at the feeding point. The surface-current dispersing circuit and the ground point disperse a portion of the surface currents at the feeding point towards the grounding point to create other hot spots of the even multiple of hot spots. The even multiple of hot spots are areas of the antenna structure on which surface-current density is higher than other areas surrounding the areas of the even multiple of hot spots.

Abstract translation: 描述了天线结构和操作电子设备的方法。 一种装置包括射频（RF），其包括表面电流分散电路和耦合到馈电点处的RF馈电并且在接地点处耦合到接地平面的天线结构。 天线结构包括四分之一波长元件的偶数倍，第一元件耦合到馈电点，第二元件耦合到接地点，并且接地点位于与馈电点规定距离处。 由于RF信号被施加到馈电点处的RF馈送而产生的表面电流在馈电点产生偶数倍的磁场热点的第一热点。 表面电流分散电路和接地点将馈电点处的表面电流的一部分分散到接地点，以产生甚至多个热点的其他热点。 热点的偶数倍是天线结构的表面电流密度高于周围多个热点的区域的区域。