Huawei Technologies Co., Limited

Hon Hai Precision Industry Co., Ltd.

Fih (hong Kong) Limited

Aac Technologies Pte. Ltd.

Shenzhen Futaihong Precision Industry Co., Ltd.

Dong Han

Zhiyong Liu

Chih-Wei Chang

Guolong Huang

Roger Tay

Tan Siew Seong

Chua TiongKee

Chuanhui Ma

Retractable pet leash

The present disclosure relates to signal sending circuits, signal receiving circuits, electronic apparatus, and base stations. One example circuit includes a signal pre-processing sub-circuit, a digital-to-analog conversion sub-circuit, an intermediate frequency power splitter, K frequency conversion phase-shift sub-circuits, and K antenna elements. An output end of the signal pre-processing sub-circuit is connected to an input end of the digital-to-analog conversion sub-circuit, an output end of the digital-to-analog conversion sub-circuit is connected to an input end of the intermediate frequency power splitter, an output end of the intermediate frequency power splitter is connected to input ends of the K frequency conversion phase-shift sub-circuits, and output ends of the K frequency conversion phase-shift sub-circuits are connected one-to-one to input ends of the K antenna elements.

Signal sending circuit, signal receiving circuit, electronic apparatus, and base station

Embodiments of the present disclosure disclose a receiver, including a high-speed sampling module (), an analog Fast Fourier Transform (AFFT) module (), a selection switch module (), a low-speed analog to digital converter (ADC) module (), and a control module (). The high-speed sampling module () is configured to sample a received signal and output a sampled signal; the AFFT module () is configured to perform time-to-frequency conversion on the sampled signal and output an analog frequency domain signal; the selection switch module () is configured to transmit the analog frequency domain signal to the low-speed ADC module (); and the control module () is configured to perform configuration on a sampling rate of the high-speed sampling module (), a quantity of points of Fast Fourier Transform that are used b the AFFT module () for performing time-to-frequency conversion, and a target input port of the selection switch module ().

Receiver and signal processing method

Scoop

Disposable pet waste collector

A multichannel radio frequency apparatus and method are disclosed. The apparatus includes a digital baseband unit and at least one transmission subsystem, and the subsystem includes: digital up converters, configured to up-convert baseband signals generated; a digital combiner, configured to up-convert M channels of digital radio frequency signals into a high frequency band whose frequency is greater than or equal to 30 GHz, to obtain M channels of high frequency digital signals, and combine the M channels of high frequency digital signals into a channel of ultra-wideband high frequency digital signal; a DAC, configured to convert the ultra-wideband high frequency digital signal into an ultra-wideband high frequency analog signal; an analog splitter, configured to split the ultra-wideband high frequency analog signal into M channels of high frequency analog signals; and radio frequency transmitting circuits, configured to transmit the analog radio frequency signals by using radio frequency antennas.

Multichannel radio frequency apparatus and method

A holder includes a cover, a base, and a charging module. The cover includes a battery, and the base is foldably connected to the cover. The charging module includes a main charging coil and a power supply. The battery and the main charging coil are electrically connected to the power supply. A first proportion of a current from the power supply charges the battery, while a second proportion of the current from the power supply sends current to the main charging coil. The main charging coil charges a portable electronic device received in the holder.

Holder for portable electronic device

A circuit module for a silicon condenser microphone of the present disclosure includes a transducer, a charge pump, an isolator, a first amplifier, a second amplifier, a reaction circuit, a first bias circuit, and a second bias circuit. The charge pump electrically connects to an input port of the transducer, and an output port of the transducer electrically connects to an input port of the first amplifier via the isolator. An output port of the first amplifier electrically connects to an input port of the second amplifier. The reaction circuit is arranged between the output port of the first amplifier and the input port of the transducer. The isolator isolates the direct-current components of the first electrical signal, and therefore, the oscillations of the direct-current components will not affect the performance of the first amplifier.

Circuit module for silicon condenser microphone

Mobile phone

A fixture includes a fixing member attached to a grinding machine (), a guiding shaft () attached to the fixing member and a clamp (). The clamp defines a pair of holes () in opposite ends thereof, for movably receiving the guiding shaft and an indicator () therein respectively. When the shaft and indicator are loosened from the holes of the clamp respectively, the clamp is rotated about the guiding shaft toward a workpiece () on the grinding machine, and the indicator is adjusted with respect to the workpiece, for measuring of the workpiece.

Fixture for attaching indicator to grinding machine

A forming device ( ) for bevelling includes a base ( ), a rail ( ), a workbench ( ) and a bar ( ). A pair of support arms ( ) extends upwardly from the base. An axle ( ) is received in pivot holes ( ) defined in the support arms. One end of the rail is fixedly connected with the axle. The workbench rests on the rail, and is slidably moveable along the rail. A beveller ( ) is fixedly installed in a top surface of the workbench. The bar is fixedly connected to an opposite end of the rail. The bar includes a large bar ( ) abutting the support plate, and a coaxial small bar ( ). The rail can be adjusted to allow the forming device to bevel at an angle of less than one degree, by placing one or a combination of standard gauges between the small bar and the base.

Growing community of inventors

Shenzhen, China

Dong Han