Patents by Inventor Lijuan TAN

Lijuan TAN 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).

  • Publication number: 20240104048
    Abstract: A transmitting apparatus includes a signal generation circuit and an adjustment circuit. The signal generation circuit is configured to send, to a receiving apparatus, a serial data signal that carries a training sequence and valid data, where the training sequence is used to train a skew or an equalization of the serial data signal, and the valid data is used to detect an amplitude of the serial data signal. The adjustment circuit is configured to receive indication information from the receiving apparatus, and adjust a transmission parameter of the serial data signal based on the indication information, where the transmission parameter includes at least one of the skew, the equalization, or the amplitude.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 28, 2024
    Inventors: Bingzhao Zhang, Yanqin Chen, Zhaohua Qian, Hangzhou Chen, Jiandong Ke, Guizhen Wang, Lijuan Tan
  • Patent number: 11855616
    Abstract: An integrated circuit, a control method, and a system are provided, to improve reliability of the integrated circuit. The integrated circuit mainly includes a power supply pin, a configuration pin, a switchable pull-up resistor, and a control unit. The integrated circuit can provide a control signal for a target chip using the configuration pin of the integrated circuit. In the integrated circuit, a first end of the switchable pull-up resistor is connected to the power supply pin, a second end of the switchable pull-up resistor is connected to the configuration pin, and a control end of the switchable pull-up resistor is connected to the control unit. The power supply pin can receive a power supply voltage of the integrated circuit.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: December 26, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Pengfei Zhao, Lijuan Tan
  • Publication number: 20230089634
    Abstract: Embodiments of this application disclose an intelligent electric appliance and a control method. The intelligent electric appliance includes: a first controller, where the first controller is configured to: receive a first instruction of a user, and convert the first instruction into a second instruction; and a second controller, where the second controller is connected to the first controller by using a communication interface. The first controller is further configured to send the second instruction to the second controller by using the communication interface, where the second controller is configured to control, based on the second instruction, the intelligent electric appliance to run. The first controller is configured to be independently upgraded when the intelligent electric appliance is connected to a network.
    Type: Application
    Filed: November 25, 2022
    Publication date: March 23, 2023
    Inventors: Lijuan TAN, Wei XIONG, Kun LUO
  • Publication number: 20220393677
    Abstract: An integrated circuit, a control method, and a system are provided, to improve reliability of the integrated circuit. The integrated circuit mainly includes a power supply pin (P1), a configuration pin (P4, P5), a switchable pull-up resistor (KR1, KR2), and a control unit (2011). The integrated circuit can provide a control signal for a target chip (202) by using the configuration pin (P4, P5) of the integrated circuit. In the integrated circuit, a first end of the switchable pull-up resistor (KR1, KR2) is connected to the power supply pin (P1), a second end of the switchable pull-up resistor (KR1, KR2) is connected to the configuration pin (P4, P5), and a control end of the switchable pull-up resistor (KR1, KR2) is connected to the control unit (2011). The power supply pin (P1) can receive a power supply voltage of the integrated circuit.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Inventors: Pengfei ZHAO, Lijuan TAN
  • Patent number: 10558258
    Abstract: An input/output (I/O) interface-based signal output method and apparatus. The method includes determining whether a voltage output by a core power supply domain of a first chip is lower than a preset threshold voltage of the first chip, and when the voltage output by the core power supply domain is lower than the threshold voltage, generating a first level signal according to a control function of the first chip over a second chip, where the first level signal is used to enable the second chip to be in an ignoring state after the second chip receives the first level signal, and sending the first level signal to the second chip through an I/O interface, where the ignoring state indicates that the second chip ignores a control signal and a data signal that are sent by the first chip where the method improves stable performance of a chip product.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: February 11, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Lijuan Tan
  • Patent number: 10536730
    Abstract: A method for processing video frames, a video processing chip, and a Motion Estimation/Motion Compensation (MEMC) chip are provided. The method performed by the video processing chip includes obtaining multiple video frames and adjusting each video frame from a first resolution to a second resolution. The method also includes inserting at least one invalid frame into the multiple video frames according to a second frame rate, so that a frame rate of a transport frame stream is the second frame rate; and sending the transport frame stream to an MEMC chip. The video processing chip and the MEMC chip may perform transmission of a frame stream according to an interface frequency corresponding to a resolution and a frame rate that are agreed upon.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: January 14, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Lijuan Tan
  • Publication number: 20170302973
    Abstract: A method for processing video frames, a video processing chip, and a Motion Estimation/Motion Compensation (MEMC) chip are provided. The method performed by the video processing chip includes obtaining multiple video frames and adjusting each video frame from a first resolution to a second resolution. The method also includes inserting at least one invalid frame into the multiple video frames according to a second frame rate, so that a frame rate of a transport frame stream is the second frame rate; and sending the transport frame stream to an MEMC chip. The video processing chip and the MEMC chip may perform transmission of a frame stream according to an interface frequency corresponding to a resolution and a frame rate that are agreed upon.
    Type: Application
    Filed: July 3, 2017
    Publication date: October 19, 2017
    Inventor: Lijuan Tan
  • Patent number: 9742548
    Abstract: A method and an apparatus for using a serial port device in a time division multiplexing manner are provided. The apparatus includes a first serial port, a second serial port, a switching circuit, and a signal interface, where the switching circuit selects to receive data sent; the first serial port sends first data to a first serial port device; the second serial port receives second data sent by a second serial port device, and when it is determined that the second data indicates that the second serial port device needs to receive third data sent by the second serial port, instructs the switching circuit to select to receive the third data sent; and the second serial port sends the third data to the second serial port device. Therefore, the first serial port and the second serial port can use corresponding serial port devices in a time division multiplexing manner.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: August 22, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Lijuan Tan
  • Publication number: 20160179187
    Abstract: An input/output (I/O) interface-based signal output method and apparatus. The method includes determining whether a voltage output by a core power supply domain of a first chip is lower than a preset threshold voltage of the first chip, and when the voltage output by the core power supply domain is lower than the threshold voltage, generating a first level signal according to a control function of the first chip over a second chip, where the first level signal is used to enable the second chip to be in an ignoring state after the second chip receives the first level signal, and sending the first level signal to the second chip through an I/O interface, where the ignoring state indicates that the second chip ignores a control signal and a data signal that are sent by the first chip where the method improves stable performance of a chip product.
    Type: Application
    Filed: February 29, 2016
    Publication date: June 23, 2016
    Inventor: Lijuan Tan
  • Publication number: 20150333897
    Abstract: A method and an apparatus for using a serial port device in a time division multiplexing manner are provided. The apparatus includes a first serial port, a second serial port, a switching circuit, and a signal interface, where the switching circuit selects to receive data sent; the first serial port sends first data to a first serial port device; the second serial port receives second data sent by a second serial port device, and when it is determined that the second data indicates that the second serial port device needs to receive third data sent by the second serial port, instructs the switching circuit to select to receive the third data sent; and the second serial port sends the third data to the second serial port device. Therefore, the first serial port and the second serial port can use corresponding serial port devices in a time division multiplexing manner.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 19, 2015
    Inventor: Lijuan TAN