公开(公告)号：US20210125264A1

公开(公告)日：2021-04-29

申请号：US16963200

申请日：2019-10-31

申请人： Hefei BOE Optoelectronics Technology Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Shufen SONG ,  Xiaopeng LIU ,  Lei WANG ,  Shengfei MA ,  Peng XIE

IPC分类号： G06Q30/06 ,  G06Q10/08 ,  G06Q30/02 ,  G01C21/00 ,  B62B5/00

摘要： A method and a device for target finding are disclosed. The method for target finding includes collecting user demand information, determining the target according to user demand information, acquiring user position information and position information of the target, generating navigation information according to the position information of the target and the user position information, and outputting the navigation information.

公开(公告)号：US20180287486A1

公开(公告)日：2018-10-04

申请号：US15569064

申请日：2017-04-14

申请人： BOE TECHNOLOGY GROUP CO., LTD. ,  HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.

发明人： Xiaofei PENG ,  Jiacheng HUANG ,  Shengfei MA

IPC分类号： H02M1/34 ,  H02M3/156 ,  H02M1/44 ,  G09G3/36

摘要： The disclosure discloses an absorption circuit which is coupled to a switching power supply, wherein the absorption circuit comprises: a switching power supply voltage spike suppression circuit for changing a voltage spike of the switching power supply into a desired voltage spike, an energy storage circuit which is coupled to the switching power supply voltage spike suppression circuit and used for storing the spike voltage that is suppressed, and a release circuit which is coupled to the energy storage circuit and used for, when the voltage stored by the energy storage circuit is higher than the output voltage of the switching power supply, releasing the energy which is stored by the energy storage circuit and higher than the output voltage to the output terminal of the switching power supply. The disclosure further discloses a corresponding switching power supply and a liquid crystal display driving circuit.

公开(公告)号：US20180277030A1

公开(公告)日：2018-09-27

申请号：US15788929

申请日：2017-10-20

申请人： BOE TECHNOLOGY GROUP CO., LTD. ,  Hefei BOE Optoelectronics Technology Co,. Ltd.

发明人： Lei WANG ,  Xiaopeng LIU ,  Yanjiao PAN ,  Shufen SONG ,  Shengfei MA ,  Peng XIE

IPC分类号： G09G3/00 ,  G09G3/20

CPC分类号： G09G3/006 ,  G09G3/2092 ,  G09G2330/021

摘要： An adapter device for test, including: an adapter board having a voltage input terminal connected to an external power supply and an output terminal connected to a terminal to be tested; a voltage conversion circuit disposed on the adapter board and connected to the voltage input terminal and configured to convert the voltage of the external power supply received at the voltage input terminal into a test voltage to be supplied to the terminal to be tested; a feedback circuit connected to the voltage conversion circuit and configured to compare the test voltage with a reference voltage to provide feedback data; and a compensation circuit connected to the feedback circuit and the adapter board, and configured to generate a compensation voltage based on the feedback data and apply the compensation voltage to the adapter board to compensate for the test voltage.