Patents by Inventor Yunchao ZHANG
Yunchao ZHANG 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: 11962275Abstract: System and method for integrating an input signal to generate an output signal. The system includes a first integrator configured to receive the input signal and generate an integrated signal based on at least information associated with the input signal, a second integrator configured to receive the integrated signal and generate the output signal based on at least information associated with the integrated signal, and a compensation capacitor coupled to the first integrator and the second integrator. The first integrator includes a first integration capacitor and a first operational amplifier including a first input terminal and a first output terminal, the first integration capacitor being coupled between the first input terminal and the first output terminal. The second integrator includes a second integration capacitor and a second operational amplifier including a second input terminal and a second output terminal.Type: GrantFiled: June 29, 2020Date of Patent: April 16, 2024Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Tingzhi Yuan, Yunchao Zhang, Zhiqiang Sun, Lieyi Fang
-
Publication number: 20240057229Abstract: System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.Type: ApplicationFiled: July 21, 2023Publication date: February 15, 2024Inventors: JUN ZHOU, YUNCHAO ZHANG, LIEYI FANG
-
Publication number: 20230378882Abstract: Controller and method for charging one or more loads. For example, the controller for charging one or more loads includes: a controller terminal configured to be biased at a first voltage related to a second voltage of a secondary winding of a power converter, the power converter further including a primary winding coupled to the secondary winding, the power converter being configured to, if the power converter is not unplugged from a voltage supply for an AC input voltage, receive the AC input voltage represented by the second voltage and output an output power to the one or more loads; and a voltage detector configured to: process information associated with the first voltage; and determine whether the AC input voltage is in a first voltage state or in a second voltage state based at least in part on the first voltage.Type: ApplicationFiled: July 30, 2023Publication date: November 23, 2023Inventors: YUNCHAO ZHANG, CHAO YAO
-
Patent number: 11764699Abstract: Controller and method for charging one or more loads. For example, the controller for charging one or more loads includes: a controller terminal configured to be biased at a first voltage related to a second voltage of a secondary winding of a power converter, the power converter further including a primary winding coupled to the secondary winding, the power converter being configured to, if the power converter is not unplugged from a voltage supply for an AC input voltage, receive the AC input voltage represented by the second voltage and output an output power to the one or more loads; and a voltage detector configured to: process information associated with the first voltage; and determine whether the AC input voltage is in a first voltage state or in a second voltage state based at least in part on the first voltage.Type: GrantFiled: July 8, 2021Date of Patent: September 19, 2023Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Yunchao Zhang, Chao Yao
-
Patent number: 11751300Abstract: System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.Type: GrantFiled: May 24, 2021Date of Patent: September 5, 2023Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Jun Zhou, Yunchao Zhang, Lieyi Fang
-
Patent number: 11734953Abstract: An image parsing method includes obtaining feature information of an initial image, parsing first feature information in the feature information using a first channel to obtain a first prediction result, parsing second feature information in the feature information using a second channel to obtain a second prediction result, where a size of the first feature information meets a first size range, a size of the second feature information meets a second size range, and the first size range is less than the second size range, and outputting the first prediction result and the second prediction result as a parsing result of the initial image.Type: GrantFiled: November 26, 2019Date of Patent: August 22, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Ziluan Liu, Shuailin Lv, Yunchao Zhang, Chao Qin, Yao Sun
-
Patent number: 11704771Abstract: An image processing method and a device, where the image processing method is performed by a terminal having a digital zoom function, and the method includes determining a target zoom magnification based on a selection input of a user, collecting a to-be-processed image, and processing the to-be-processed image using a target super-resolution convolutional neural network model to obtain a processed image corresponding to the target zoom magnification, where the target super-resolution convolutional neural network model is obtained by training a super-resolution convolutional neural network model using a high-definition training image, a low-definition training image, and a mask image.Type: GrantFiled: December 1, 2017Date of Patent: July 18, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yunchao Zhang, Shuai Chen, Zhiping Jia, Lei Miao
-
Publication number: 20230216418Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.Type: ApplicationFiled: December 8, 2022Publication date: July 6, 2023Inventors: WUPING LIN, YUNCHAO ZHANG, JIANFENG HUANG, LIEYI FANG
-
Patent number: 11652419Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.Type: GrantFiled: October 22, 2021Date of Patent: May 16, 2023Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Wuping Lin, Yunchao Zhang, Jianfeng Huang, Lieyi Fang
-
Publication number: 20230119958Abstract: System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.Type: ApplicationFiled: September 20, 2022Publication date: April 20, 2023Inventors: Jun Zhou, Yunchao Zhang, Lieyi Fang
-
Patent number: 11552570Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.Type: GrantFiled: October 22, 2021Date of Patent: January 10, 2023Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Wuping Lin, Yunchao Zhang, Jianfeng Huang, Lieyi Fang
-
Patent number: 11503208Abstract: An intelligent assistant control method is provided: starting, by a terminal device, a lens; displaying, by the terminal device, a preview interface on a display screen, where the preview interface includes a to-be-photographed object; and if the terminal device determines that the preview interface has been stably displayed for preset duration, displaying, by the terminal device, first prompt information of a photographing mode in the preview interface, where the first prompt information is used to recommend a first photographing mode to a user, and the first photographing mode is determined by the terminal device based on scene information of the to-be-photographed object.Type: GrantFiled: March 26, 2018Date of Patent: November 15, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Lei Song, Xin Guo, Xiaomeng Chen, Yunchao Zhang, Xin Chen
-
Patent number: 11493963Abstract: An electronic device includes a transparent cover and a flexible display screen. The transparent cover has a transparent cover having a fixed shape and including a plate-shape flat surface and a sidewall, the sidewall being formed by extending an edge of the flat surface away from the flat surface, the sidewall having a curved structure, and the sidewall and the flat surface forming an inverted structure; and a flexible display screen being fitted to an inner surface of the transparent cover, a display output surface of the flexible display screen facing the transparent cover, the flexible display screen including a non-deformable portion and a deformable portion, the non-deformable portion being fitted to the flat surface, and the deformable portion being fitted to the sidewall.Type: GrantFiled: September 28, 2020Date of Patent: November 8, 2022Assignee: LENOVO (BEIJING) CO., LTD.Inventors: Zhi Chen, Xiaojing Yuan, Zhaokao Tian, Yunchao Zhang, Jun Liang
-
Patent number: 11483907Abstract: System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.Type: GrantFiled: December 15, 2020Date of Patent: October 25, 2022Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Jun Zhou, Yunchao Zhang, Lieyi Fang
-
Publication number: 20220190729Abstract: Systems and methods for voltage compensation based on load conditions in power converters. For example, a system controller for regulating a power converter includes a first controller terminal; a second controller terminal; and a compensation current generator. The compensation current generator is configured to receive an input signal through the first controller terminal. The input signal indicates a first current flowing through a primary winding of a power converter. The compensation current generator is configured to receive a demagnetization signal related to a demagnetization period of the power converter and associated with an auxiliary winding of the power converter. The compensation current generator is configured to generate a compensation current based at least in part on the input signal and the demagnetization signal. The compensation current generator is connected to a resistor. The resistor is configured to generate a compensation voltage based at least in part on the compensation current.Type: ApplicationFiled: October 22, 2021Publication date: June 16, 2022Inventors: WUPING LIN, YUNCHAO ZHANG, JIANFENG HUANG, LIEYI FANG
-
Patent number: 11356025Abstract: System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.Type: GrantFiled: September 18, 2017Date of Patent: June 7, 2022Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Dongze Yang, Yaming Cao, Yunchao Zhang, Lieyi Fang
-
Publication number: 20220094846Abstract: A method for selecting an image based on burst shooting is provided, which relates to the field of terminal technologies. The method includes: an electronic device displays a preview interface; detects a first operation used to start burst shooting; obtains N images; then performs scene recognition based on K images that meet an image quality screening condition, to determine a shooting scene; and finally determines M images based on the shooting scene, where N is greater than or equal to K, N is greater than or equal to M, N and K are positive integers greater than 1, and M is a positive integer greater than or equal to 1. This technical solution helps improve quality of an image obtained by the electronic device through screening, thereby improving user satisfaction with an image that is automatically obtained through screening during burst shooting by the electronic device.Type: ApplicationFiled: January 31, 2019Publication date: March 24, 2022Inventors: Shuailin Lv, Yunchao Zhang, Hongyu Li, Zhiping Jia
-
Patent number: 11264888Abstract: System and method for protecting a power converter. An example system controller for protecting a power converter includes a signal generator, a comparator, and a modulation and drive component. The signal generator is configured to generate a threshold signal. The comparator is configured to receive the threshold signal and a current sensing signal and generate a comparison signal based on at least information associated with the threshold signal and the current sensing signal, the current sensing signal indicating a magnitude of a primary current flowing through a primary winding of a power converter. The modulation and drive component is coupled to the signal generator.Type: GrantFiled: December 17, 2018Date of Patent: March 1, 2022Assignee: On-Bright Electronics (Shanghai) Co., Ltd.Inventors: Chao Yao, Yunchao Zhang, Yuan Lin, Zhiqiang Sun, Lieyi Fang
-
Patent number: D1013669Type: GrantFiled: December 2, 2022Date of Patent: February 6, 2024Assignee: Lenovo (Beijing) LimitedInventors: Yunchao Zhang, Jun Liang
-
Patent number: D1019135Type: GrantFiled: June 22, 2023Date of Patent: March 26, 2024Inventor: Yunchao Zhang