公开(公告)号：US20190025689A1

公开(公告)日：2019-01-24

申请号：US15993994

申请日：2018-05-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hongtao GUAN ,  Wenchu DONG ,  Junwei YAN ,  Ying ZHANG ,  Tailiang LI

IPC: G03B21/53

Abstract: The disclosure provides a focusing method of optical machine of projector, a focusing device and an optical machine. The focusing method comprises steps of: detecting deformation amount of lens of an optical machine; and controlling and adjusting a focal length of the lens of the optical machine according to the deformation amount of the lens of the optical machine. In the he focusing method, by detecting the deformation amount of the lens of the optical machine in real time and controlling to adjust the focal length of the lens of the optical machine in real time according to the deformation amount of the lens of the optical machine, the adjustment precision of the focal length of the lens of the optical machine can be greatly improved.

公开(公告)号：US20190019414A1

公开(公告)日：2019-01-17

申请号：US15941031

申请日：2018-03-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hongtao GUAN

IPC: G08G1/16 ,  B60Q9/00 ,  H04N7/18 ,  G06K9/32 ,  G06K9/00

Abstract: This disclosure provides an apparatus and method for reminding a vehicle lane change and a vehicle. The apparatus for reminding a vehicle lane change comprises: an image capturing member configured to capture an identification code image of a target vehicle; an image processing member configured to determine an identification code of the target vehicle based on the identification code image; an input member configured to receive lane change direction information input by a user; and a first communication member configured to send lane change information including the identification code of the target vehicle and the lane change direction information.

公开(公告)号：US20240411548A1

公开(公告)日：2024-12-12

申请号：US18755701

申请日：2024-06-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hongtao GUAN

IPC: G06F8/65 ,  G16Y10/75 ,  G16Y40/50 ,  H04L9/30 ,  H04W12/037

Abstract: An over-the-air updating method, an update server, a terminal, and an internet of things system are provided. The over-the-air updating method is applied to an update server in an internet of things system which further includes a terminal. The update server is communicatively connected to the terminal. The method includes: generating an encryption public key and an encryption private key which match each other; sending the encryption public key to the terminal; generating an update key, and encrypting the update key with the encryption private key; sending the encrypted update key to the terminal, for the terminal decrypts the encrypted update key with the encryption public key; encrypting update data with the update key; sending the encrypted update data to the terminal, for the terminal decrypts the update data with the decrypted update key, and performing data updating with the update data.

公开(公告)号：US20220264467A1

公开(公告)日：2022-08-18

申请号：US17605541

申请日：2021-02-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Kai ZHAO ,  Lingfeng XU ,  Hongtao GUAN

IPC: H04W52/02

Abstract: Disclosed are a terminal, a communication system, a communication method and a storage medium. The terminal comprises a receiver and a processor, the receiver is configured to output, upon reception of a destination address in a data packet, a trigger signal; and the processor is configured to control, upon detection of the trigger signal and when the destination address is not the address of the terminal, the receiver to stop receiving the data packet. The present disclosure can effectively reduce power consumption of terminals.

公开(公告)号：US20200013197A1

公开(公告)日：2020-01-09

申请号：US16448103

申请日：2019-06-21

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiangxiang ZOU ,  Hongtao GUAN ,  Lu TONG

IPC: G06T11/00 ,  G06T11/20 ,  G06F3/0488 ,  G06F3/0354

Abstract: A method of and system for: acquiring drawing technique prompt information associated with an original graphic; initiating presentation of a stroke represented by the touch input on a display screen in response to detecting touch input on a touch pad; initiating presentation of a first prompt of the plurality of prompts in association with the stroke on the display screen; and initiating recording of graphic data corresponding to the stroke as an imitation of the first portion in response to completion of imitating a first portion.

公开(公告)号：US20190206239A1

公开(公告)日：2019-07-04

申请号：US16053921

申请日：2018-08-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hongtao GUAN

IPC: G08G1/017 ,  G06K9/00 ,  G08G1/01 ,  G08G1/015

Abstract: The present disclosure provides a method and a device for detecting whether an object violates a traffic signal. The terminal moving along with the object is in communication with the network to acquire the state of the traffic signal in the moving direction of the object; when the acquired state of the traffic signal is in the no-passing state, the terminal determines a current position of the object according to beacons surrounding the intersection where the object is; and then, the terminal moving along with the object detects whether the object violates the traffic signal according to the determined current position of the object.

公开(公告)号：US20190028678A1

公开(公告)日：2019-01-24

申请号：US15963343

申请日：2018-04-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Tailiang LI ,  Hongtao GUAN ,  Wenchu DONG ,  Ying ZHANG ,  Junwei YAN

IPC: H04N9/31 ,  G09G3/00

Abstract: A screen, a projection system and a focusing method are provided. The screen is used for presenting a projected image and it includes a screen body, a photosensitive detector and a processor. The photosensitive detector is on a projection surface of the screen body for collecting a gray level of the image presented on the screen body. The processor is for obtaining description information of the image according to the gray level of the image collected by the photosensitive detector, the description information of the image indicating definition of the projected image.