Patents by Inventor Yao Cheng

Yao Cheng 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: 20210041614
    Abstract: A display device is provided, which is arranged by a plurality of optical cables in parallel, and each optical cable comprises includes a conductive material and a light guide material, wherein the light guide material covers the conductive material, and two encapsulated light-emitting elements comprise a first encapsulated light-emitting element and a second encapsulated light-emitting element, which are respectively positioned at two ends of each optical cable, wherein each encapsulated light-emitting element comprises a plurality of light-emitting units, and an area of each light-emitting unit overlaps with an area of the light guide material viewed from a sectional direction.
    Type: Application
    Filed: August 28, 2019
    Publication date: February 11, 2021
    Inventors: Yao-Cheng Li, Shu-Wei Yang
  • Patent number: 10916175
    Abstract: A method for correcting uniformity of a panel is provided. A display panel is set with four color patterns respectively, and respective raw data of the four color patterns are respectively measured by an optical instrument. Three primary color chromaticity variations are obtained based on the raw data of each of the four color patterns. A chromaticity uniformity table is obtained based on the chromaticity variations of three primary colors and chromaticity intensity. A proportional calculation is executed for the chromaticity uniformity table to obtain a luminance comparison table. A luminance uniformity table is obtained based on the chromaticity uniformity table, the luminance comparison table, and luminance intensity. The display panel adjusts an output signal based on the chromaticity uniformity table.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: February 9, 2021
    Assignee: PEGATRON CORPORATION
    Inventors: Wei-Hsing Huang, Sheng-Yao Cheng, Yu-Chen Tai
  • Publication number: 20210037625
    Abstract: The invention provides a light-emitting diode (LED) driver and a driving method thereof. The LED driver includes a brightness code calculation circuit, a driving current generation circuit and a control circuit. The brightness code calculation circuit is configured to to receive a pulse width modulation (PWM) signal and perform a calculation operation comprising calculating a duty cycle of the PWM signal with respect to a period of the PWM signal and generating a brightness code according to the duty cycle of the PWM signal. The driving current generation circuit is configured to generate a driving current according to the brightness code. The control circuit is configured to detect a plurality of brightness codes generated by the brightness code calculation circuit repeatedly performing the calculation operation and determine whether or not to adjust an execution frequency of the calculation operation of the brightness code calculation circuit according to the brightness codes.
    Type: Application
    Filed: July 20, 2020
    Publication date: February 4, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Tuo-Kuang Chen, Hsiang-Yi Chiu, Chiun-He Lin, Yao-Cheng Lin
  • Patent number: 10890713
    Abstract: A light emitting group is provided. The light emitting group includes at least two optical cables are adjacent to each other, wherein each optical cable respectively comprises a conductive material and a light guide material, wherein the light guide material covers the conductive material, and a plurality of encapsulated light emitting elements, wherein each optical cable corresponds to at least one encapsulated light emitting element, and the encapsulated light emitting elements are positioned at a terminal of each optical cable, wherein a minimum side of the encapsulated light emitting element is longer than a thickness of the light guide material, and a connecting line is connected with two centers of the two optical cables from a cross-sectional direction, and at least one encapsulated light emitting element overlaps with a perpendicular bisector in the connecting line.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 12, 2021
    Assignee: Lumieye Technology Co., Ltd.
    Inventors: Yao-Cheng Li, Yu-Chieh Chen
  • Publication number: 20200386940
    Abstract: A light emitting group is provided. The light emitting group includes at least two optical cables are adjacent to each other, wherein each optical cable respectively comprises a conductive material and a light guide material, wherein the light guide material covers the conductive material, and a plurality of encapsulated light emitting elements, wherein each optical cable corresponds to at least one encapsulated light emitting element, and the encapsulated light emitting elements are positioned at a terminal of each optical cable, wherein a minimum side of the encapsulated light emitting element is longer than a thickness of the light guide material, and a connecting line is connected with two centers of the two optical cables from a cross-sectional direction, and at least one encapsulated light emitting element overlaps with a perpendicular bisector in the connecting line.
    Type: Application
    Filed: July 25, 2019
    Publication date: December 10, 2020
    Inventors: Yao-Cheng Li, Yu-Chieh Chen
  • Publication number: 20200348706
    Abstract: A voltage regulator system includes a switch system including a power switch to conduct an output current through an inductor based on an input voltage and a switching signal to generate an output voltage at a load. A feedback system generates a PWM signal based on the output voltage and based on a variable reference voltage. A gate driver system generates the switching signal based on the PWM signal. The gate driver system controls the switch system to increase the output voltage at output voltage slopes in each of startup stages during startup of the voltage regulator system. A sampling system samples the output current and the output voltage during the startup of the voltage regulator system to measure each slope of the output voltage slopes at each of the respective startup stages during the startup of the voltage regulator system.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 5, 2020
    Inventors: Kuang-Yao Cheng, Wenkai Wu, Preetam Tadeparthy, Shuhua Zhang
  • Publication number: 20200312214
    Abstract: A method for correcting uniformity of a panel is provided. A display panel is set with four color patterns respectively, and respective raw data of the four color patterns are respectively measured by an optical instrument. Three primary color chromaticity variations are obtained based on the raw data of each of the four color patterns. A chromaticity uniformity table is obtained based on the chromaticity variations of three primary colors and chromaticity intensity. A proportional calculation is executed for the chromaticity uniformity table to obtain a luminance comparison table. A luminance uniformity table is obtained based on the chromaticity uniformity table, the luminance comparison table, and luminance intensity. The display panel adjusts an output signal based on the chromaticity uniformity table.
    Type: Application
    Filed: November 21, 2019
    Publication date: October 1, 2020
    Applicant: PEGATRON CORPORATION
    Inventors: Wei-Hsing Huang, Sheng-Yao Cheng, Yu-Chen Tai
  • Publication number: 20200274271
    Abstract: A power backplane assembly is adapted to be connected to a power supply. The power supply outputs a first voltage. The power backplane assembly includes a backplane body, a conversion circuit board, and an output circuit board. The backplane body is for plugging in the power supply. The conversion circuit board is electrically connected to the backplane body. The backplane body is adapted to deliver the first voltage to the conversion circuit board. The conversion circuit board converts the first voltage into a second voltage. The output circuit board is electrically connected to the conversion circuit board and includes a first output connector and a second output connector. The first output connector is configured to output the first voltage, and the second output connector is at least configured to output the second voltage. A power supply module which has the power backplane assembly is also provided.
    Type: Application
    Filed: January 15, 2020
    Publication date: August 27, 2020
    Applicant: FSP TECHNOLOGY INC.
    Inventors: Chien-Li Tsai, Yao-Cheng Tsai
  • Publication number: 20200220240
    Abstract: The present invention provides a battery module, a battery device, and a battery system having a thermal management design. It utilizes a three-stage thermal management design of the battery module, the battery device, and the battery system to not only prevent the battery cells from being impacted by the environmental temperature, but also efficiently control the temperature of the battery cells, such that the battery cells can reach the requirements of temperature equalization and appropriate operating temperature. The thermal management design of the battery module is mainly a design of a battery cell charging and discharging circuit having heat exchange. The thermal management design of the battery device is mainly a battery device enclosure having a thermal insulation ability, so as to avoid or reduce the impact of the environmental temperature to the temperature of the battery module.
    Type: Application
    Filed: April 10, 2017
    Publication date: July 9, 2020
    Inventor: MING YAO CHENG
  • Publication number: 20200205294
    Abstract: The invention provides a display and an electronic device. The display includes a first substrate, a second substrate, a display medium layer, and a flexible printed circuit board. The first substrate is an active component array substrate and has a first region and a second region. The second substrate is disposed opposite to the first substrate and faces the first region of the first substrate, wherein the second region of the first substrate is a region of the first substrate extending beyond the second substrate. The display medium layer is disposed between the first substrate and the second substrate and located in the first region. The flexible printed circuit board is disposed in the second region and electrically connected to the first substrate, and an orthographic projection of the flexible printed circuit board on the first substrate is located within the range of the first substrate.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Applicant: Coretronic Corporation
    Inventors: Xin-Xian Li, Yao-Cheng Lu, Chin-Lung Chen
  • Publication number: 20200202042
    Abstract: A power supply control circuit includes serial communication circuitry, non-volatile memory, and a controller circuit. The serial communication circuitry is configured to receive configuration information. The configuration information includes a data structure containing validation information identifying a controller. The non-volatile memory is configured to store the configuration information, and to store identification information that identifies the power supply control circuit. The controller circuit is configured to compare the validation information to the identification information, and to apply the configuration information to configure the power supply control circuit responsive the comparison indicating that the validation information is the same as the identification information.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Inventors: Matthew John Ascher SCHURMANN, Preetam Charan Anand TADEPARTHY, Kuang-Yao CHENG
  • Patent number: 10666279
    Abstract: A circuit includes a phase control logic, an analog-to-digital converter (ADC), and digital logic. The phase control logic is configured to couple to a plurality of power phases of a multi-phase power supply. The digital logic is configured to couple to the phase control logic and the ADC, to receive an instruction to operate in a self-calibration mode of operation, receive a first message including a value associated with a calibrated load configured to couple to the plurality of power phases, perform a self-calibration sub-routine for each power phase of the plurality of power phases based at least partially on the received instruction, the received first message, and a signal received from the ADC, and receive a second message instructing the digital logic to store a result of the self-calibration in a memory of the circuit.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: May 26, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Matthew John Ascher Schurmann, Mayank Jain, Wenkai Wu, Preetam Charan Anand Tadeparthy, Kuang-Yao Cheng
  • Publication number: 20200144922
    Abstract: A circuit for a multi-phase power regulator including a power stage with a first phase and a second phase, the circuit including phase management circuitry coupled to the first phase and the second phase to control the first phase and the second phase, a first comparator coupled to an output of the multi-phase power regulator to compare a value of the output of the multi-phase power regulator to a first threshold value to produce a first comparison result, and phase shedding circuitry coupled to the first comparator and the phase management circuitry to control the phase management circuitry to activate or deactivate the second phase based at least partially on the first comparison result.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Inventors: Kuang-Yao Cheng, Wenkai Wu, Preetam Tadeparthy, Nancy Zhang, Dattatreya Baragur Suryanarayana, Naga Venkata Prasadu Mangina
  • Patent number: 10644518
    Abstract: A battery power supply system and a battery power supply method for a main system are provided. The battery power supply system includes a power supply processor, an expansion slot module with plural slots, and plural battery units. The plural battery units are docked with the corresponding slots. Moreover, plural control switches are electrically connected between the corresponding slots and the power supply processor. A voltage value of one battery unit is defined as a fiducial voltage value. If the difference between the fiducial voltage value and the voltage value of at least one battery unit of the rest of the battery units is within a predetermined value, the control switch corresponding to the at least one battery unit is turned on. The battery unit with the fiducial voltage value and the at least one battery unit are connected with each other in parallel.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: May 5, 2020
    Assignee: FLYTECH TECHNOLOGY CO., LTD
    Inventors: Yao-Cheng Ting, Shih-Hsuan Lin
  • Patent number: 10644594
    Abstract: A control circuit for a DC-DC converter and a DC-DC converter are disclosed. The control circuit includes an integrator coupled to receive a first reference voltage and a first voltage that includes an output voltage for the DC-DC converter and to provide an integrated error signal. A first comparator is coupled to receive the first reference voltage and the first voltage and to provide a dynamic-integration signal that adjusts the integration time constant of the integrator.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: May 5, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kuang-Yao Cheng, Preetam Tadeparthy, Muthusubramanian Venkateswaran, Vikram Gakhar, Dattatreya Baragur Suryanarayana
  • Patent number: 10636191
    Abstract: A method and an apparatus of displaying a window border shadow, the method including the following steps: creating a slave window stitched to a border of a main window, wherein the main window is a non-Layered Window, and the slave window is a Layered Window (S100); adjusting a size of the slave window according to a size of the main window, and adjusting screen coordinates of the slave window according to screen coordinates of the main window (S200); and calculating a pixel point transparency for the slave window, and displaying the slave window according to the calculated result (S300). Above mentioned method sets the main window for presenting software interface to the non-Layered Window, and the slave windows stitched to the borders surrounding the main window to the Layered Window, thus utilizing the slave windows to create the border shadow display effect, and also decreasing memory footprint for the entire system.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 28, 2020
    Assignee: GUANGZHOU SHIRUI ELECTRONICS CO. LTD.
    Inventor: Yao Cheng
  • Publication number: 20200124789
    Abstract: A backlight module includes a back cover, a light source, a light guide plate and a first adhesive. The light source includes a substrate and at least one light emitting device. The substrate is disposed on the back cover. The light emitting device is disposed on the substrate. The light guide plate is disposed on the back cover and has a light incidence surface, a light emitting surface and a back surface. The back surface is opposite to the light emitting surface. The light incidence surface is connected between the back surface and the light emitting surface and faces the light emitting device. The first adhesive is adhered between the light guide plate and the substrate. The backlight module of the present invention can prevent an unexpected gap from appearing between the light emitting surface of the light guide plate and the light emitting device.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Applicant: Coretronic Corporation
    Inventors: Pei-Ting Huang, Yao-Cheng Lu, Xin-Xian Li
  • Patent number: 10560023
    Abstract: A circuit for a multi-phase power regulator including a power stage with a first phase and a second phase, the circuit including phase management circuitry coupled to the first phase and the second phase to control the first phase and the second phase, a first comparator coupled to an output of the multi-phase power regulator to compare a value of the output of the multi-phase power regulator to a first threshold value to produce a first comparison result, and phase shedding circuitry coupled to the first comparator and the phase management circuitry to control the phase management circuitry to activate or deactivate the second phase based at least partially on the first comparison result.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 11, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Kuang-Yao Cheng, Wenkai Wu, Preetam Tadeparthy, Nancy Zhang, Dattatreya Baragur Suryanarayana, Naga Venkata Prasadu Mangina
  • Patent number: 10443780
    Abstract: A camera device includes a base, an image sensing component and a gravity center adjustment mechanism. The image sensing component is located on the base. The gravity center adjustment mechanism includes a circuit board disposed on the base, an adjusting module and a weight component. An angle detecting unit on the circuit board is used to detect an inclined angle of the circuit board related to a reference surface. The adjusting module is disposed on the circuit board. The weight component is connected to the circuit board via the adjusting module. An processing unit on the circuit board drives the adjusting module to rotate the weight component according to the inclined angle, so as to change position of a gravity center of the camera device and to adjust a capturing angle of the image sensing component.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: October 15, 2019
    Assignee: Wistron Corporation
    Inventors: Ting-Yao Cheng, Chen-Pu Yang, Chwen-Tyng Hwang, Ya-Shian Huang, Yi-Ching Lin
  • Patent number: 10432093
    Abstract: A multiphase DC-DC converter includes a first phase circuit including a higher inductance inductor and a second phase circuit including a lower inductance inductor. An output of the inductors are tied together providing a Vout. A phase manager and current sharing (PMCS) block receives a feedback signal from a feedback network coupled between Vout and the PMCS block that receives current feedback from phase circuits. The PMCS block generates driver control signals at a first time when a load is requesting a lower load current for controlling the phase circuits to operate with a first current sharing ratio to provide the lower load current, and at a second time when the load is requesting a higher load current controls the phase circuits to operate at a second current sharing ratio that is different from the first current sharing ratio having a higher average second phase circuit current.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 1, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Kuang-Yao Cheng, Wenkai Wu, Yipeng Su