公开(公告)号：US20150053773A1

公开(公告)日：2015-02-26

申请号：US14509978

申请日：2014-10-08

Applicant: Amazon Technologies, Inc.

Inventor： Morris Hsu ,  Anuj Dron

IPC: G06K19/077 ,  H01Q1/22 ,  H02J7/02 ,  H01Q7/00

CPC classification number: G06K19/07783 ,  G06K7/10356 ,  G06K7/10386 ,  G06K19/0727 ,  H01Q1/2225 ,  H01Q7/00 ,  H02J50/10 ,  H02J50/70

Abstract: An apparatus includes a non-conductive sheet, an electrically conductive coil disposed on the non-conductive sheet, and an electronic component. The non-conductive sheet has a first surface, a second surface opposite the first surface, and a third surface extending from the first surface to the second surface, the third surface defining an opening. The electrically conductive coil surrounds the third surface and the third surface surrounds the electronic component, the electronic component being disposed within the opening.

Abstract translation: 一种装置包括非导电片，设置在非导电片上的导电线圈和电子部件。 非导电片具有第一表面，与第一表面相对的第二表面和从第一表面延伸到第二表面的第三表面，第三表面限定开口。 导电线圈包围第三表面，第三表面围绕电子部件，电子部件设置在开口内。

公开(公告)号：US09641205B1

公开(公告)日：2017-05-02

申请号：US14848215

申请日：2015-09-08

Applicant: Amazon Technologies, Inc.

Inventor： In Chul Hyun ,  Sembhayya Gollakota ,  Morris Hsu ,  Cheol Su Kim

IPC: H04B1/04 ,  H01Q1/52 ,  H04W88/06 ,  H04W84/12 ,  H04W4/00

CPC classification number: H04B1/0475 ,  H04B1/406 ,  H04B1/525 ,  H04W84/12 ,  H04W88/06

Abstract: Antenna structures and methods of operating the same are described. One apparatus includes a processing device that executes an active interference cancellation (AIC) algorithm and radio frequency front-end (RFFE) circuitry coupled to the processing device. The RFFE circuitry includes two RF couplers, and a programmable-delay filter and a vector modulator disposed along electrical path. The AIC algorithm is operable to control the programmable-delay filter to match a delay of the electrical path to a propagation delay in an antenna path. The AIC algorithm is operable to control the vector modulator to adjust a phase, an amplitude or both of a copy of a first RF signal transmitted via the first antenna to generate a second RF signal. The second RF signal is added to a third RF signal via the second RF coupler to remove from the third RF signal interference caused by the first RF signal.

公开(公告)号：US09355350B2

公开(公告)日：2016-05-31

申请号：US14509978

申请日：2014-10-08

Applicant: Amazon Technologies, Inc.

Inventor： Morris Hsu ,  Anuj Dron

IPC: G06K19/06 ,  G06K19/077 ,  G06K7/10 ,  G06K19/07 ,  H01Q1/22 ,  H01Q7/00 ,  H02J7/02

CPC classification number: G06K19/07783 ,  G06K7/10356 ,  G06K7/10386 ,  G06K19/0727 ,  H01Q1/2225 ,  H01Q7/00 ,  H02J50/10 ,  H02J50/70

Abstract: An apparatus includes a non-conductive sheet, an electrically conductive coil disposed on the non-conductive sheet, and an electronic component. The non-conductive sheet has a first surface, a second surface opposite the first surface, and a third surface extending from the first surface to the second surface, the third surface defining an opening. The electrically conductive coil surrounds the third surface and the third surface surrounds the electronic component, the electronic component being disposed within the opening.

Abstract translation: 一种装置包括非导电片，设置在非导电片上的导电线圈和电子部件。 非导电片具有第一表面，与第一表面相对的第二表面和从第一表面延伸到第二表面的第三表面，第三表面限定开口。 导电线圈包围第三表面，第三表面围绕电子部件，电子部件设置在开口内。

公开(公告)号：US10477585B1

公开(公告)日：2019-11-12

申请号：US16049593

申请日：2018-07-30

Applicant: Amazon Technologies, Inc.

Inventor： Kun Ting Tsai ,  Chirag Bhavsar ,  Huanchun Ye ,  Varadarajan Gopalakrishnan ,  QingYun Wei ,  Morris Hsu ,  James Edwin Christy

IPC: H04W74/08 ,  H04B15/02 ,  G06F3/16

Abstract: Microwave interference mitigation techniques and systems are disclosed herein. In some embodiments, microwave interference mitigation involves coordinating wireless traffic in accordance with a magnetron's on-and-off cycle so that data is not sent during the magnetron's on period, and is exclusively sent during the magnetron's off period. Wireless traffic can be coordinated using a voltage monitoring and zero-crossing point detection technique coupled with a Clear To Send (CTS) packet. For non-microwave devices, wireless traffic coordination can be achieved using a pattern matching algorithm coupled with a Clear Channel Assessment (CCA) threshold adjustment during the magnetron's on-and-off cycles. Additional, or alternative, microwave interference mitigation techniques involve decreasing a maximum packet size for data packets that are to be transmitted wirelessly in the environment, which guarantees successful transmission of data packets during the magnetron's off periods.