Huawei Technologies Co., Limited

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Yong Cao

Zhenlin Xie

Patricia Leichliter

Xinyu Liu

Pinghua Wang

Ulrich Hofmann

Yanding Liu

Ce Liu

Shanshan Gu-Stoppel

Guangjian Tian

Yijun Liu

Oleg Petrak

Aloshious Thottappattu Joy

Fabian Schwarz

Frerk SÖRENSEN

An eyeball tracking system is provided, which includes: an illumination light source, configured to transmit an illumination light ray to a beam scanner; the beam scanner, configured to project the illumination light ray onto an entrance pupil optical apparatus; the entrance pupil optical apparatus, configured to reflect, reproduce, or refract the illumination light ray, so that the reflected, reproduced, or refracted illumination light ray illuminates an eyeball; a photoelectric detector, configured to: collect a receive optical power value of an eyeball reflection light ray, and send the receive optical power value to a controller; and the controller, configured to: receive the receive optical power value sent by the photoelectric detector, determine, based on the receive optical power value, an optical power reference value, and determine a current gaze direction of the eyeball based on the optical power reference value.

Eyeball tracking system and eyeball tracking method

A battery protection apparatus power protection apparatus is configured to protect an electrochemical cell connected to a load, and includes a protection IC, a switching transistor group, and a sampling resistor. The protection IC includes two power input terminals respectively connected to positive and negative electrodes of the electrochemical cell, and an operational amplifier, where the operational amplifier includes a positive input pin, a negative input pin, and an output pin. The switching transistor group is connected between the negative electrode of the electrochemical cell and the load, and is configured to control turn-on and turn-off of a charge and discharge circuit of the electrochemical cell. The sampling detection resistor Rs is serially connected between the sampling circuit detection terminal and the output pin, where the main circuit detection terminal is connected to the positive input pin, and the sampling circuit detection terminal is connected to the negative input pin.

Power protection apparatus and terminal using the apparatus

The present invention provides a data processing method, including: acquiring historical data, where the historical data belongs to a first level and a second level, and data corresponding to the first level comprises data corresponding to the second level; generating, from the historical data, a first-granularity data set according to a first granularity, and generating, from the historical data, a second-granularity data set according to a second granularity, where the first granularity and the second granularity respectively correspond to the first level and the second level; performing modeling for a second-granularity forecasting model according to the first-granularity data set and the second-granularity data set; and performing forecasting by using the second-granularity forecasting model to obtain second-granularity forecast data. The present invention enables obtained forecast data of different granularities to be consistent.

Data processing method and apparatus

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Munich, Germany

Yong Cao