Huawei Technologies Co., Limited

Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Fu Tai Hua Industry (shenzhen) Co., Ltd.

Lie Zhang

Wei Wang

Qian Wang

Chuang Yue

Ke Wang

Ji-Ying Jin

En-Long Hao

Hong-Yi Tao

Qiang Li

Zhiwei Zhang

Jinsong Lv

Yuxiang Xiao

Erni Zhu

Mao-Sheng Huang

Mo Chen

Jianxiong Bai

Meifeng Li

The present disclosure relates to correction apparatus and correction methods. One example correction apparatus includes a first adjustment module, a plurality of second adjustment modules, a correction calculation module, and a plurality of non-ideal channels. One second adjustment module is disposed on one non-ideal channel. The first adjustment module is connected to each non-ideal channel. The correction calculation module is separately connected to the first adjustment module and the plurality of second adjustment modules. The correction calculation module is connected to an output end of each non-ideal channel. The non-ideal channel is a channel that outputs an output signal in response to a drive signal having an error value.

Correction apparatus and correction method

This application relates to the field of communications technologies, and in particular, to a digital predistortion processing method and apparatus. This application provides a digital predistortion processing method and apparatus. Digital predistortion processing of a multichannel power amplifier is supported through deprecoding processing by using one feedback link and one digital predistortion processor. In addition, after being amplified by a power amplifier, a precoded signal is fed back to the feedback link for predistortion parameter calculation, to improve quality of a transmit signal. The digital predistortion processing method and apparatus that are provided in embodiments of this application are intended to improve output linearity and efficiency of a multi-transmit-channel power amplifier while reducing implementation costs and complexity of a transmit device, and further improve overall system performance.

Digital predistortion processing method and apparatus

A method for determining a calibration parameter of a zero intermediate frequency radio receiver, and a zero intermediate frequency radio receiver are provided. The method includes: obtaining a plurality of sub-band training signals, where a sum of the plurality of sub-band training signals is a fullband training signal; determining a sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; determining a fullband calibration signal according to the plurality of sub-band training signals and the sub-band calibration parameter corresponding to each of the plurality of sub-band training signals; and performing coefficient fitting on the fullband training signal and the fullband calibration signal, to determine a fullband calibration parameter. Because sub-band calibration parameters are obtained according to a plurality of different sub-band training signals, aliasing between an image signal and a training signal is reduced. Therefore, a speed and precision of determining a calibration parameter can be improved.

Method for determining calibration parameter of zero intermediate frequency radio receiver, and zero intermediate frequency radio receiver

A computer mouse includes a housing and a button assembly. The button assembly includes a button, a circuit board, a first conductive sheet, and a second conductive sheet. The button is exposed out of the housing. The circuit board is received in the housing, and includes a first contact and a second contact. The first conductive sheet has a first magnet fixed thereon, and is electrically connected to the first contact of the circuit board. The second conductive sheet is electrically connected to the second contact of the circuit board. The second conductive sheet is fixed to the button and contactable with the first conductive sheet when the button is pressed. The second magnet and the first magnet form a repulsive force therebetween.

Button assembly and computer mouse having the same

The present invention relates to a plug. The plug includes a plug body, a fixing frame, and a number of elastic plates. The plug body is made of an insulating material. A number of gold fingers are disposed on the outer surface of the plug body. The fixing frame is made of a conductive material and sleeves the plug body. The elastic plates are disposed on inner sidewalls of the fixing frame and electrically connected to the fixing frame. Each elastic plate includes an apex. The present disclosure also relates to a connector assembly using the plug.

Plug and connector assembly using same

A power strip is provided. The power strip includes a first power cord to receive an input of electricity. The power strip also includes a housing including a plurality of socket modules for receiving electrical plugs. At least one socket module is removably attached to the housing and includes a second power cord connect to the first power cord.

Power strip

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Shenzhen, China

Lie Zhang