Other

Boe Technology Group Co., Ltd.

Beijing Jiaotong University

China Braille Press

Tianqi Wang

Haisheng Wang

Lei Wang

Yingming Liu

Xiaoliang Ding

Changfeng Li

Pengpeng Wang

Bo Wang

Yang Yang

Yu Chen

Chenyang Zhang

Xin Chen

Xiufeng Li

Houjin Chen

Meng Han

Qilin You

An ultrasonic induction circuit is provided, a first electrode of an ultrasonic sensor is electrically connected with a first terminal of the ultrasonic sensing circuit, a second electrode is electrically connected with a second terminal of a first potential supply sub-circuit, and the first terminal of the first potential supply sub-circuit is electrically connected with a first potential supply end. A gate of Mis electrically connected with the second electrode and the second terminal of the compensation sub-circuit. The second electrode is electrically connected with the first terminal of the compensation sub-circuit. The first electrode is coupled to the second potential supply end. The first terminal of the signal output sub-circuit is electrically connected to the second electrode of the first transistor, and the second terminal is electrically connected to the second terminal of the ultrasonic induction circuit.

Ultrasonic induction circuit, driving method thereof, display device and storage medium

A method and an apparatus for outputting information are provided. The method includes: acquiring at least one piece of test data generated in a target period; performing a fitting calculation on the at least one piece of test data to obtain estimated test data in the target period; and determining, for a test time point in the target period, a difference value between test data generated at the test time point and corresponding estimated test data as a target difference value; determining at least one historical correspondence difference value corresponding to the determined target difference value; and generating and outputting a data fluctuation value based on the determined target difference value and the determined at least one historical correspondence difference value.

Method and apparatus for performing a fitting calculation on test data and generating data fluctuation values

A braille display, belonging to the technical field of blind people reading devices, uses a memory alloy material to realize recessing and protruding of a braille point array of the braille display. The braille display is mainly composed of any number of braille recessing-protruding dot arrays, each of which includes several individual point locations, an outer frame and signal boards. Each of the individual dots comprises upper and lower telescoping members, an upper conductive connecting member, an intermediate conductive connecting member, a lower conductive connecting member, external sleeve locks and guide rods. The recessing-protruding change of braille points is realized through specific connection of various specific components. By using the braille display, the endurance capability is improved, and the cost is reduced. Moreover, since the braille display has a relatively small volume, the braille display can be applied to a mobile portable device or a wearable device.

Braille display

Growing community of inventors

Beijing, China

Tianqi Wang