Beijing Irtouch Systems Co., Ltd

Huawei Technologies Co., Limited

Xiaomi Inc.

Koga Touch Co., Ltd

Zhenyu Wu

Yuhui Wang

Jianjun Liu

Xinlin Ye

Xinbin Liu

Xin Zhang

Jie Chen

Meng Xu

Rong Yang

Liu Fang

Haibing Zhang

Yanfei Han

Haidong Hao

Jianhe Jiang

Haibo Tang

Xianpeng Wang

The present disclosure provides a method, apparatus, optical touch device, and storage medium for optical touch image optimization, including turning on an infrared light source based on a preset second interval, wherein the infrared light source is configured to illuminate a touch object of the optical touch device; capturing, at each time the infrared light source is turned on, a first optical touch image and a second optical touch image based on a preset first interval, wherein the first optical touch image is the image captured when the infrared light source is turned on, and the second optical touch image is the image captured when the infrared light source is turned off; and performing subtraction between the first optical touch image and the second optical touch image to obtain an optimized optical touch image, wherein the optimized optical touch image includes the touch object.

Method, apparatus, optical touch device, and storage medium for optical touch image optimization

Embodiments of this application disclose a congestion control method and a related device. A Transmission Control Protocol offload engine TOE sends a congestion control notification to a central processing unit CPU, where the congestion control notification instructs the CPU to obtain a target parameter, and the target parameter is used by the CPU to generate a congestion control calculation result. The TOE obtains the congestion control calculation result returned by the CPU, where the congestion control calculation result includes a congestion control window value. The TOE sends a packet based on the congestion control window value. In this application, the TOE and the CPU implement congestion control together. When a new congestion control algorithm emerges, the new congestion control algorithm may be applied without changing a structure of the TOE. Therefore, in this application, an upgrade period of the congestion control algorithm can be shortened, and flexibility can be improved.

Congestion control method and related device

A terminal-implemented method, a server-implemented method and a terminal for acquiring a certification document are provided. The terminal-implemented method includes: determining a target application for providing the certification document according to a user-input identification of a legal source of the certification document; acquiring page contents of the target application, the page contents containing the certification document; and sending document contents including the page contents or the certification document to a certification-document extracting server to enable certification-document extracting server to extract the certification document from the document contents.

Terminal-implemented method, server-implemented method and terminal for acquiring certification document

The present invention relates to a touch positioning method, a touch screen, a touch system and a display. The touch positioning method comprises: processing image collected by the first camera to obtain first image data, and processing image collected by the second camera to obtain second image data, wherein the first image data comprise one touch image block, and the second image data comprise at least two touch image blocks; processing the second image data to obtain third image data, the third image data comprising image blocks of two suspected touch objects; obtaining a distance between the two suspected touch objects according to the first image data and the third image data; and obtaining location information of an actual touch object according to the first image data, the third image data and the distance between the two suspected touch objects. The invention may eliminate misjudgment caused by 'crack dot' (FIG.).

Touch positioning method, touch screen, touch system, and display

A touch screen, a touch system and a method for positioning a touch object in a touch system are disclosed. The touch screen comprises an infrared pair tube array, wherein said infrared pair tube array is disposed on an edge of said touch screen. By introducing the infrared pair tube array, the touch screen of the present invention eliminates invalid touch areas in the existing touch screen and avoids false touch points in multipoint positioning.

Touch screen, touch system and method for positioning a touch object in touch system

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Beijing, China

Zhenyu Wu