Huawei Technologies Co., Limited

Aac Technologies Pte. Ltd.

Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Kuang-chi Institute of Advanced Technology

Xiaoyu Zhang

Ruopeng Liu

Zhe Chen

Yang He

Libin Zhang

Jinliang Dai

Hua Tian

Fuliang Yin

Qingwen Feng

An order management method applied to an electric vehicle is provided. An order allocation apparatus at a platform obtains information about each commercial vehicle and a location of a safe point. The information about the vehicle includes information about an electric commercial vehicle, for example, a current location and a remaining power of the vehicle. The order allocation apparatus selects a service vehicle for a passenger. When the service vehicle is the electric vehicle, it is ensured that a remaining power of the service vehicle is sufficient to complete a safe driving route, and the safe driving route is a route connecting a current location of the candidate vehicle, a start location, a destination location, and a location of a safe point closest to the destination location. The order allocation apparatus allocates an order to the service vehicle.

Order management method applied to electric vehicle and apparatus

Method and device for evaluating the electrical performance of an antenna cover. The method for evaluating the electrical performance of the antenna cover comprises: acquiring electromagnetic parameter information of an antenna and parameter information of an antenna cover; calculating far-field information of the antenna and far-field information of an antenna system on the basis of the electromagnetic parameter information of the antenna and of the parameter information of the antenna cover; and calculating electrical performance parameter information of the antenna cover on the basis of the far-field information of the antenna and of the far-field information of the antenna system. By means of the actual measurement of the electromagnetic parameter information of the antenna and of the parameter information of the antenna cover, the calculation of the far-field information of the antenna and of the far-field information of the antenna system, and the electrical performance parameter information of the antenna cover thus produced, without relying on a precise digital model of the antenna or when the antenna system is of increased complexity, calculation precision is ensured, the operability of the evaluation of the electrical performance of the antenna cover is greatly increased, and calculation precision is effectively increased.

Method and device for evaluating electrical performance of radome

An apparatus for performing gesture recognition and control based on ultrasonic positioning is disclosed. The apparatus includes an ultrasonic transmitter module for providing an original ultrasonic signal; an ultrasonic receiver for receiving an reflected ultrasonic signal corresponding to the original ultrasonic signal; a computing module for computing a frequency shift within a time period from the original ultrasonic signal being transmitted to the reflected ultrasonic signal being received, and converting the frequency shift into a gesture characteristic signal; a gesture database for providing reference gesture characteristic signals, and control signals corresponding to the reference gesture characteristic signals respectively; and a gesture recognition and control module for comparing the gesture characteristic signal with the reference gesture characteristic signals in the gesture database, and selecting a corresponding control signal from the data base according to a comparison result.

Apparatus for performing gesture recognition and control based on ultrasonic positioning

A method for decoding an audio signal includes: obtaining a lower-band signal component of an audio signal corresponding to a received code stream when the audio signal switches from a first bandwidth to a second bandwidth which is narrower than the first bandwidth; extending the lower-band signal component to obtain higher-band information; performing a time-varying fadeout process on the higher-band information to obtain a processed higher-band signal component; and synthesizing the processed higher-band signal component and the obtained lower-band signal component. With the methods provided in the embodiments of the invention, when an audio signal has a switch from broadband to narrowband, a series of processes such as bandwidth detection, artificial band extension, time-varying fadeout process, and bandwidth synthesis, may be performed to make the switch to have a smooth transition from a broadband signal to a narrowband signal so that a comfortable listening experience may be achieved.

Method and apparatus for audio decoding

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Shenzhen, China

Xiaoyu Zhang