Boe Technology Group Co., Ltd.

Beijing Jiaotong University

Qingyong Li

Jianfu Liu

Jian Yu

Tao Yang

Qi Wang

Zhicheng Wang

Chenfei Qian

Bo Ai

Junbo Hu

Yongxin Zhang

Zhangdui Zhong

Fuliang Sun

Ruisi He

Li'ao Gengyang

Ruifeng Chen

The present disclosure provides a feedback circuit for monitoring a heating loop, comprising a sample input module, a voltage conversion module and a main control chip. The sample input module has an input terminal coupled to the heating loop and configured to collect a voltage signal from the heating loop, and an output terminal electrically coupled to an input terminal of the voltage conversion module. The voltage conversion module has an output terminal coupled to an input terminal of the main control chip, and is configured to convert the voltage signal received from the sample input module into a voltage signal that the main control chip can withstand. The main control chip is configured to send a sample control signal to the heating loop, and calculate and output magnitude of the voltage signal inputted to the sample input module according to the voltage signal outputted by the voltage conversion module.

Feedback circuit, heating circuit, display apparatus and display system

A signal source for electromagnetic interference test of display devices, comprising: a housing capable of attenuating an electromagnetic signal; a parameter receiving module located within the housing and configured to receive related parameters of a signal required for testing a display device; a signal generating module located within the housing and configured to generate a signal required for testing the display device in accordance with the parameters received by the parameter receiving module; and an output interface located on the housing and configured to output the signal generated by the signal generating module. Adopting this signal source to perform EMI test on display devices can eliminate the influence of the signal source, thus reduce the complexity of the test, and make the test become simple and efficient.

Signal source for electromagnetic interference test of display devices

Embodiments of the present disclosure provide a display driving circuit, a driving method thereof, a display driving system and a display apparatus. The display driver circuit comprises a processor, a storage and a grey scale voltage generator. The storage is configured to store at least two gamma curves, wherein each of the at least two gamma curves is associated with a range of temperature. The processor is configured to obtain a current environment temperature, to determine a range to which the current environment temperature belongs based on the current environment temperature; to retrieve the gamma curve associated with the range determined from the storage, and to output the retrieved gamma curve to the grey scale voltage generator.

Display driving circuit and a driving method thereof, a display driving system and a display apparatus

A Kernel-power-density based method for wireless channel multipath components (MPCs) clustering. Signals get to the receiver from a transmitter via multipath propagation. MIMO channels can be modeled as double-directional, which contains the information of power, delay, direction of departure (DOD) and direction of arrival (DOA) of MPCs. The MPCs tend to appear in clusters. All the parameters of MPCs can be estimated by using high-resolution algorithms, such as MUSIC, CLEAN, SAGE, and RiMAX. Considering a data snapshot for a certain time with several clusters, which include a number of MPCs, where each MPC is represented by its power, delay, DOD and DOA. This invention adopts a novel clustering framework by using a density based method, which can better identify the local density variations of MPCs and requires no prior knowledge about clusters. It can work for the cluster oriented channel processing technology in future wireless communication field.

Method for clustering wireless channel MPCs based on a KPD doctrine

A system for controlling the advertising machine includes a standby control unit, an application processing unit and a power source unit. The application processing unit is configured to control an operation of the advertising machine. The power source unit is configured to provide power to the standby control unit, and provide power to the application processing unit under the control of the standby control unit. The standby control unit is configured to control a standby period and an operating period of the advertising machine according to a standby scheme, wherein during the standby period of the advertising machine, the power source unit is controlled to stop providing power to the application processing unit, and during the operating period of the advertising machine, the power source unit is controlled to provide power to the application processing unit.

Advertising machine, and system, method and storage medium for controlling advertising machine

A display device is presented which includes a timing control module, a source driving module and a gate driving module. The timing control module being configured to output a driving signal to the source driving module and the gate driving module respectively. The display device further includes a detection module and a reminding module. The detection module is configured to acquire the driving signal and detect the driving signal and configured to output a warning control signal to the reminding module when detecting an abnormity of the driving signal. The reminding module is configured to acquire the warning control signal output by the detection module and configured to output a warning under control of the warning control signal.

Display device

The present provides a secondary power system and a power supply device. The secondary power system is used for supplying power for a load equipment, and comprises: a fuse circuit, a filter circuit, a convertor circuit and an over-voltage and under-voltage protection circuit, wherein, the fuse circuit, the filter circuit, the over-voltage and under-voltage protection circuit and the convertor circuit are sequentially connected in series; the over-voltage and under-voltage protection circuit is configured to cut off power supplied to the convertor circuit when power supplied by the primary power source is an under-voltage or over-voltage; the convertor circuit is configured to convert the primary power source into a secondary power source. The secondary power system, by providing an over-voltage and under-voltage protection circuit, can not only lower the cost of the convertor circuit, but also save the space occupied by the convertor circuit.

Growing community of inventors

Beijing, China

Qingyong Li