Patents by Inventor Weize Xu
Weize Xu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11916518Abstract: Examples provide methods and apparatus for controlling a DC bias current in an RF amplifier. In one example where the RF amplifier is implemented on an amplifier die, a reference voltage is produced across a reference resistor implemented on the amplifier die, the DC bias current is measured, and a current controller, which is implemented on a controller die that is separate from the amplifier die, operates a feedback loop using the reference voltage to control a level of the DC bias current.Type: GrantFiled: April 20, 2022Date of Patent: February 27, 2024Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Douglas M. Johnson, Guillaume Alexandre Blin, Michael John Mitzen, Jung Hee Lee, Weize Xu, Attila Kalamar
-
Publication number: 20230103680Abstract: An OLED pixel compensation circuit, a driving method thereof, and a display device are provided. The OLED pixel compensation circuit includes an input sub-circuit, a compensation sub-circuit, a driving sub-circuit and a light-emitting sub-circuit. The input sub-circuit is coupled to the compensation sub-circuit and configured to input a data signal into the compensation sub-circuit. The compensation sub-circuit is coupled to the driving sub-circuit and the light-emitting sub-circuit and configured to compensate a threshold voltage of the driving sub-circuit. The driving sub-circuit is configured to drive the light-emitting sub-circuit to emit light after the threshold voltage of the driving sub-circuit is compensated.Type: ApplicationFiled: July 23, 2019Publication date: April 6, 2023Inventors: Zuwei WENG, Weize XU, Bin WENG
-
Publication number: 20220247359Abstract: Examples provide methods and apparatus for controlling a DC bias current in an RF amplifier. In one example where the RF amplifier is implemented on an amplifier die, a reference voltage is produced across a reference resistor implemented on the amplifier die, the DC bias current is measured, and a current controller, which is implemented on a controller die that is separate from the amplifier die, operates a feedback loop using the reference voltage to control a level of the DC bias current.Type: ApplicationFiled: April 20, 2022Publication date: August 4, 2022Inventors: Douglas M. Johnson, Guillaume Alexandre Blin, Michael John Mitzen, Jung Hee Lee, Weize Xu, Attila Kalamar
-
Patent number: 11329609Abstract: Examples provide methods and apparatus for controlling a DC bias current in an RF amplifier. In one example where the RF amplifier is implemented on an amplifier die, a reference voltage is produced across a reference resistor implemented on the amplifier die, the DC bias current is measured, and a current controller, which is implemented on a controller die that is separate from the amplifier die, operates a feedback loop using the reference voltage to control a level of the DC bias current.Type: GrantFiled: August 31, 2020Date of Patent: May 10, 2022Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Douglas M. Johnson, Guillaume Alexandre Blin, Michael John Mitzen, Jung Hee Lee, Weize Xu, Attila Kalamar
-
Patent number: 11282442Abstract: The present disclosure provides a pixel driving circuit, a method for driving the pixel driving circuit, and a display panel. The pixel driving circuit includes: a driving circuit coupled to a first control signal terminal and a data signal terminal, and configured to generate a driving current based on a signal from the data signal terminal under control of a signal from the first control signal terminal; and a compensation circuit coupled to the first control signal terminal, a second control signal terminal, an output signal terminal, and the driving circuit, and configured to perform a threshold voltage compensation on the driving circuit and provide the driving current generated by the driving circuit to the output signal terminal, under control of a signal from a first control signal terminal and a signal from the second control signal terminal.Type: GrantFiled: March 12, 2020Date of Patent: March 22, 2022Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zuwei Weng, Yichiang Lai, Weize Xu, Bin Weng, Nani Liu, Juijian Han, Yupeng Huang, Qianglong Li
-
Patent number: 11087655Abstract: A gate driving signal detection circuit, a method, and a display device are provided, the gate driving signal detection circuit includes a switch sub-circuit and a test signal line, during a blank time period and an interval time period, the switch sub-circuit controls writing of a clock signal output by a clock signal line into the test signal line; during a output time period of each stage of gate driving signal, when a potential of the gate driving signal is an effective level, the switch sub-circuit controls to establish a connection between a corresponding gate driving signal output terminal and the test signal line, when the potential of the gate driving signal is an ineffective level, the switch sub-circuit controls to disconnect the connection between the corresponding gate driving signal output terminal and the test signal line.Type: GrantFiled: June 10, 2019Date of Patent: August 10, 2021Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zuwei Weng, Weize Xu
-
Publication number: 20210210001Abstract: The present disclosure provides a pixel driving circuit, a method for driving the pixel driving circuit, and a display panel. The pixel driving circuit includes: a driving circuit coupled to a first control signal terminal and a data signal terminal, and configured to generate a driving current based on a signal from the data signal terminal under control of a signal from the first control signal terminal; and a compensation circuit coupled to the first control signal terminal, a second control signal terminal, an output signal terminal, and the driving circuit, and configured to perform a threshold voltage compensation on the driving circuit and provide the driving current generated by the driving circuit to the output signal terminal, under control of a signal from a first control signal terminal and a signal from the second control signal terminal.Type: ApplicationFiled: March 12, 2020Publication date: July 8, 2021Inventors: Zuwei Weng, Yichiang Lia, Weize Xu, Bin Weng, Nani Liu, Juijian Han, Yupeng Huang, Qianglong Li
-
Patent number: 11049453Abstract: A pixel circuit, a driving method and a display apparatus are provided. The pixel circuit includes: a signal input sub-circuit, a data input sub-circuit, a light emitting control sub-circuit, a compensation sub-circuit, a capacitor sub-circuit, a driving transistor and a light emitting device. By the cooperation of the above sub-circuits and elements, a threshold voltage of the driving transistor can be compensated, and a voltage of a first power terminal can also be compensated.Type: GrantFiled: July 23, 2020Date of Patent: June 29, 2021Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zuwei Weng, Yupeng Huang, Weize Xu, Han Wu
-
Patent number: 11004375Abstract: A signal protection circuit, a driving method thereof, and a device. A voltage division circuit divides a voltage of an input signal end and outputs a divided voltage. When the divided voltage is greater than a first threshold voltage and the divided voltage is less than a second threshold voltage, a signal control circuit outputs a first-level switch control signal. In this way, an output control circuit can connect the input signal end with an output signal end in response to the first-level switch control signal. When the divided voltage is less than the first threshold voltage or the divided voltage is greater than the second threshold voltage, the signal control circuit may output a second-level switch control signal. In this way, the output control circuit can connect the input signal end with a ground terminal in response to the second-level switch control signal.Type: GrantFiled: January 3, 2019Date of Patent: May 11, 2021Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Weize Xu, Yichiang Lai, Zuwei Weng, Bin Weng, Jiujian Han, Qianglong Li, Nani Liu, Yupeng Huang
-
Publication number: 20210097934Abstract: A pixel circuit, a driving method and a display apparatus are provided. The pixel circuit includes: a signal input sub-circuit, a data input sub-circuit, a light emitting control sub-circuit, a compensation sub-circuit, a capacitor sub-circuit, a driving transistor and a light emitting device. By the cooperation of the above sub-circuits and elements, a threshold voltage of the driving transistor can be compensated, and a voltage of a first power terminal can also be compensated.Type: ApplicationFiled: July 23, 2020Publication date: April 1, 2021Inventors: Zuwei WENG, Yupeng HUANG, Weize XU, Han WU
-
Publication number: 20210091724Abstract: Examples provide methods and apparatus for controlling a DC bias current in an RF amplifier. In one example where the RF amplifier is implemented on an amplifier die, a reference voltage is produced across a reference resistor implemented on the amplifier die, the DC bias current is measured, and a current controller, which is implemented on a controller die that is separate from the amplifier die, operates a feedback loop using the reference voltage to control a level of the DC bias current.Type: ApplicationFiled: August 31, 2020Publication date: March 25, 2021Inventors: Douglas M. Johnson, Guillaume Alexandre Blin, Michael John Mitzen, Jung Hee Lee, Weize Xu, Attila Kalamar
-
Patent number: 10937350Abstract: A voltage control circuit and a method of controlling the same, and a display device are provided. The comparison sub-circuit is coupled to a first reference voltage end, a second reference voltage end, a feedback voltage end and a comparison output end which is coupled to the switching sub-circuit. The switching sub-circuit is further coupled to an output voltage end, an initial voltage end and a replacement voltage end. The comparison sub-circuit determines whether a voltage of the feedback voltage end is between the first reference voltage and the second reference voltage. The switching sub-circuit transmits a voltage of the initial voltage end to the output voltage end in response to a first control signal of the comparison output end; transmit a voltage of the replacement voltage end to the output voltage end in response to a second control signal of the comparison output end.Type: GrantFiled: December 12, 2019Date of Patent: March 2, 2021Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weize Xu, Yichiang Lai, Zuwei Weng, Bin Weng, Jiujian Han, Qianglong Li, Nani Liu, Yupeng Huang
-
Patent number: 10923035Abstract: A pixel circuit includes an input module, an emission control module, a compensation module, a driving transistor and a light emitting device. The input module is configured to provide a signal of a data signal terminal to a gate of the driving transistor and provide a signal of an initialization signal terminal to a second electrode of the driving transistor. The compensation module is configured to provide a signal of a power supply voltage terminal to a first electrode of the driving transistor. The emission control module is configured to provide a signal of a reference voltage signal terminal to the gate of the driving transistor and conduct the second electrode of the driving transistor with the light emitting device.Type: GrantFiled: July 27, 2020Date of Patent: February 16, 2021Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zuwei Weng, Yupeng Huang, Weize Xu
-
Patent number: 10914792Abstract: A linearity compensation circuit is disclosed for improving the linearity of a sensing signal. The linearity compensation circuit may include a compensator that is capable of receiving a sensing signal from a sensor and generating a compensation signal based on the sensing signal. The linearity compensation circuit may also include an output circuit that is capable of combining the compensation signal and the sensing signal to generate a compensated signal that exhibits an improved linearity. Also disclosed is a sensing apparatus which includes a sensor and the linearity compensation circuit. The sensing apparatus may thus be able to generate a sensing signal that is linear over a wider dynamic range.Type: GrantFiled: April 21, 2018Date of Patent: February 9, 2021Assignee: ACEINNA TRANSDUCER SYSTEMS CO., LTD.Inventors: Leyue Jiang, Alexander Dribinsky, Bin Liu, Weize Xu
-
Publication number: 20200357319Abstract: A signal protection circuit, a driving method thereof, and a device. A voltage division circuit divides a voltage of an input signal end and outputs a divided voltage. When the divided voltage is greater than a first threshold voltage and the divided voltage is less than a second threshold voltage, a signal control circuit outputs a first-level switch control signal. In this way, an output control circuit can connect the input signal end with an output signal end in response to the first-level switch control signal. When the divided voltage is less than the first threshold voltage or the divided voltage is greater than the second threshold voltage, the signal control circuit may output a second-level switch control signal. In this way, the output control circuit can connect the input signal end with a ground terminal in response to the second-level switch control signal.Type: ApplicationFiled: January 3, 2019Publication date: November 12, 2020Inventors: Weize XU, Yichiang LAI, Zuwei WENG, Bin WENG, Jiujian HAN, Qianglong LI, Nani LIU, Yupeng HUANG
-
Publication number: 20200279516Abstract: A gate driving signal detection circuit, a method, and a display device are provided, the gate driving signal detection circuit includes a switch sub-circuit and a test signal line, during a blank time period and an interval time period, the switch sub-circuit controls writing of a clock signal output by a clock signal line into the test signal line; during a output time period of each stage of gate driving signal, when a potential of the gate driving signal is an effective level, the switch sub-circuit controls to establish a connection between a corresponding gate driving signal output terminal and the test signal line, when the potential of the gate driving signal is an ineffective level, the switch sub-circuit controls to disconnect the connection between the corresponding gate driving signal output terminal and the test signal line.Type: ApplicationFiled: June 10, 2019Publication date: September 3, 2020Applicants: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Zuwei WENG, Weize XU
-
Publication number: 20200265765Abstract: A voltage control circuit and a method of controlling the same, and a display device are provided. The comparison sub-circuit is coupled to a first reference voltage end, a second reference voltage end, a feedback voltage end and a comparison output end which is coupled to the switching sub-circuit. The switching sub-circuit is further coupled to an output voltage end, an initial voltage end and a replacement voltage end. The comparison sub-circuit determines whether a voltage of the feedback voltage end is between the first reference voltage and the second reference voltage. The switching sub-circuit transmits a voltage of the initial voltage end to the output voltage end in response to a first control signal of the comparison output end; transmit a voltage of the replacement voltage end to the output voltage end in response to a second control signal of the comparison output end.Type: ApplicationFiled: December 12, 2019Publication date: August 20, 2020Applicants: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weize XU, Yichiang LAI, Zuwei WENG, Bin WENG, Jiujian HAN, Qianglong LI, Nani LIU, Yupeng HUANG
-
Patent number: 10643575Abstract: The present disclosure relates to display technologies, and particularly to a clock signal auxiliary circuit and a display device. The circuit can include a voltage detection circuit, a thermal sensitive sensing circuit, a control circuit, a switch selection circuit, and a signal amplification circuit. The clock signal auxiliary circuit can generate different detection signals according to different ambient temperatures during operation, and generate different control signals according to different detection signals, so as to turn on different channels according to different control signals, pull the clock signal that is finally output to the output end up to the correct potential, and generate correct scan signals at different ambient temperatures according to the clock signal pulled up to the correct potential.Type: GrantFiled: May 6, 2019Date of Patent: May 5, 2020Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Weize Xu
-
Publication number: 20200020299Abstract: The present disclosure relates to display technologies, and particularly to a clock signal auxiliary circuit and a display device. The circuit can include a voltage detection circuit, a thermal sensitive sensing circuit, a control circuit, a switch selection circuit, and a signal amplification circuit. The clock signal auxiliary circuit can generate different detection signals according to different ambient temperatures during operation, and generate different control signals according to different detection signals, so as to turn on different channels according to different control signals, pull the clock signal that is finally output to the output end up to the correct potential, and generate correct scan signals at different ambient temperatures according to the clock signal pulled up to the correct potential.Type: ApplicationFiled: May 6, 2019Publication date: January 16, 2020Inventor: Weize XU
-
Publication number: 20180306871Abstract: A linearity compensation circuit is disclosed for improving the linearity of a sensing signal. The linearity compensation circuit may include a compensator that is capable of receiving a sensing signal from a sensor and generating a compensation signal based on the sensing signal. The linearity compensation circuit may also include an output circuit that is capable of combining the compensation signal and the sensing signal to generate a compensated signal that exhibits an improved linearity. Also disclosed is a sensing apparatus which includes a sensor and the linearity compensation circuit. The sensing apparatus may thus be able to generate a sensing signal that is linear over a wider dynamic range.Type: ApplicationFiled: April 21, 2018Publication date: October 25, 2018Inventors: Leyue Jiang, Alexander Dribinsky, Bin Liu, Weize Xu