Honor Device Co., Ltd.

Huawei Technologies Co., Limited

University of Science and Technology of China

Yuan Wu

Wei Zhang

Chao Wang

Feng Wang

Lei Ma

Jingfan Qin

Jie Hu

Lilie Zhao

Wei Tong

Youjun Zhang

Wujia Zhang

Lanfang Dong

Yulei Wen

Zeju Xia

This application provides a wireless charging system. The wireless charging system has the function of wirelessly charging an electronic stylus while receiving the electronic stylus. The wireless charging system includes a tablet computer, a wireless keyboard, and an electronic stylus. The wireless keyboard includes a keyboard body, a bracket for placing the tablet computer, and a connecting portion for movably connecting the keyboard body and the bracket. The tablet computer is provided with a first wireless charging sending device. The wireless keyboard is provided with a first wireless charging receiving device. The first wireless charging receiving device receives an electromagnetic signal sent by the first wireless charging sending device. The connecting portion includes a receiving cavity provided with an opening at an end and a second wireless charging sending device. The second wireless charging sending device is configured to wirelessly charge the electronic stylus received in the receiving cavity.

Wireless charging system

This application discloses a wireless keyboard. The wireless keyboard includes a connection portion. The connection portion includes an accommodating cavity with an opening at an end and used for accommodating an electronic stylus. A wireless charging coil is arranged in the accommodating cavity. A charging interface and a wireless charging control module are arranged in the wireless keyboard. The wireless charging control module is connected to the charging interface and the wireless charging coil. The charging interface can receive a direct current signal. The wireless charging control module can convert, if it is detected that a direct current signal is inputted to the charging interface, the direct current signal into an alternating current signal and transmit the alternating current signal to the wireless charging coil. The wireless charging coil generates an alternating electromagnetic field in response to the alternating current signal, to wirelessly charge the electronic stylus.

Wireless keyboard

Embodiments of this application provide a wireless charging system, a chip, and a wireless charging circuit. The wireless charging system includes an electronic device and a stylus, where the electronic device is configured to wirelessly charge the stylus; and the stylus includes a wireless charging circuit. The wireless charging circuit includes a first coil, a chip, and a first battery, the chip includes a rectifier, a charger unit, a micro-control unit, and a protocol encoding/decoding unit. The charger unit includes a voltage-stabilizing charging circuit, a boost charging circuit, or a switched capacitor charging circuit; and the charger unit is configured to charge the first battery by using the direct current signal from the rectifier. For the stylus, energy is coupled from the coil, passes through the chip, and then is directly output to a battery of the stylus.

Wireless charging system, chip, and wireless charging circuit

Embodiments of the present invention provide a method and a device for generating a morphing animation from multiple images, where the method includes: performing hue preprocessing on adjacent images among multiple images; determining the quantity of intermediate frames between the adjacent images according to a feature point differential of the adjacent images on which the hue preprocessing has been performed, generating, between the adjacent images through an image warping technology, intermediate frame images, the quantity of which is the same as that of the intermediate frames, insert the intermediate frame images between the adjacent images, and generate a morphing animation from the multiple images and the intermediate frame images that are inserted between all adjacent images among the multiple images. The morphing animation generated in the present invention is smooth and natural, thereby improving a morphing effect of the morphing animation.

Method and device for generating morphing animation

Growing community of inventors

Shenzhen, China

Yuan Wu