公开(公告)号：US09961744B1

公开(公告)日：2018-05-01

申请号：US14560720

申请日：2014-12-04

Applicant: Amazon Technologies, Inc.

Inventor： Jeffrey B. Doar ,  James Samuel Bowen ,  Robert W. Zehner ,  Allen Lee

IPC: G09G5/00 ,  H05B37/02 ,  F21V8/00 ,  G09G3/34

CPC classification number: H05B37/0218 ,  G02B6/0068 ,  G02F1/167 ,  G02F2001/133616 ,  G02F2201/58 ,  G09G3/3406 ,  G09G3/344 ,  G09G2300/0456 ,  G09G2320/0666 ,  G09G2360/144 ,  G09G2380/14

Abstract: Devices such as electronic book readers, televisions, and so forth may use reflective display technologies. Described herein are devices and methods for ambient light sensing for use in conjunction with displays. A light guide panel is coupled to a light sensor to measure ambient light impinging on the light guide panel. Where the display is reflective, the light guide panel may be configured to provide for illumination of the display.

公开(公告)号：US09253733B1

公开(公告)日：2016-02-02

申请号：US14219992

申请日：2014-03-19

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Cheng-Jung Lee ,  Allen Lee

IPC: H01Q11/12 ,  H04W52/18

CPC classification number: H04W52/283 ,  Y02D70/00

Abstract: Methods and systems are described for determining whether any one of three or more proximity test conditions is met using measurements from a plurality of proximity electrodes located relative to an antenna of a user device and reducing a transmit power level to be used by the antenna when any one of the three or more proximity test conditions is met. A user device obtains measurements from the proximity electrodes, checks the three or more proximity test conditions, and instructs a transmit power manager to reduce a transmit power level to transmit data when any one of the three or more proximity test conditions is met.

Abstract translation: 描述了用于确定是否使用来自相对于用户设备的天线定位的多个接近电极的测量来满足三个或更多个接近度测试条件中的任何一个的方法和系统，并且当任何时候降低天线要使用的发射功率电平 满足三个或更多接近度测试条件之一。 用户设备从邻近电极获得测量值，检查三个或更多邻近测试条件，并指示当符合三个或更多接近度测试条件中的任何一个时，发射功率管理器降低发送功率电平以发送数据。