Patents by Inventor Yueh-Lin Chung

Yueh-Lin Chung 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: 20250110376
    Abstract: An electronic device includes a first substrate, a second substrate disposed opposite to the first substrate, and an electrochromic layer disposed between the first base and the second base. The first substrate includes a first base, a trace, a dielectric layer and an electrode. The dielectric layer is disposed on the first base and covers the trace. The electrode is disposed on the dielectric layer, and is electrically connected to the trace through a contact window of the dielectric layer. The trace includes a first mesh conductive pattern. The first mesh conductive pattern of the trace partially overlaps with the electrode.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 3, 2025
    Inventors: Shiang-Lin LIAN, Ya-Ling HSU, Yueh-Hung CHUNG, Kun-Cheng TIEN, Chun-Lung HUANG, Liang-Yin HUANG, Chin-An LIN, Jen-Hao SHIH
  • Publication number: 20250110375
    Abstract: An electronic device includes a first base, a plurality of electrodes, a plurality of traces, an insulating layer, a second base and an electrochromic layer. The electrodes are disposed on the first base. Each electrode includes a mesh conductive pattern and a transparent conductive pattern. The mesh conductive pattern has a plurality of mesh lines and a plurality of meshes defined by the mesh lines. The transparent conductive pattern covers the mesh lines and the meshes, and is electrically connected to the mesh conductive pattern. The traces are disposed on the first base, and are electrically connected to the electrodes respectively. The insulating layer is disposed on the first base, and at least covers the traces. The second base is disposed opposite to the first base.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 3, 2025
    Inventors: Chin-An Lin, Shiang-Lin Lian, Jen-Hao Shih, Kun-Cheng Tien, Chien-Huang Liao, Yueh-Hung Chung, Chun-Lung Huang, Ya-Ling Hsu, Liang-Yin Huang
  • Publication number: 20250104615
    Abstract: A display device includes a substrate, a pixel array and a first scan driver. The pixel array is formed on the substrate. The pixel array includes multiple gate lines and multiple connection lines. The gate lines extend along a first direction. The connection lines extend along a second direction different from the first direction. The first scan driver includes multiple dummy stages and a first stage to a last stage. The dummy stages and the first stage to the last stage of the first scan driver are arranged in sequence along a direction the same as a signal transmission direction on the substrate.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 27, 2025
    Inventors: Shiang-Lin LIAN, Yueh-Hung CHUNG, Kuo-Wei HO
  • Publication number: 20250085162
    Abstract: There is provided an optical sensor including an SPAD pixel array, multiple counters and a processor. The multiple counters count photon events of the SPAD pixel array to output an event-based vision sensor (EVS) frame per EVS period. The processor determines an index state of each pixel of the SPAD pixel array by comparing a counting value of each pixel respectively at a predetermined number of checking points with two predetermined thresholds, and calculates an index change of the index state associated with each pixel between adjacent EVS frames. The processor further changes the EVS period and/or adds a count offset to the counting value of each pixel to improve sensitivity of the event-based vision sensor.
    Type: Application
    Filed: September 16, 2024
    Publication date: March 13, 2025
    Inventors: TSO-SHENG TSAI, KUEI-YANG TSENG, YUEH-LIN CHUNG
  • Patent number: 12210100
    Abstract: There is provided a distance measurement device including a light source, a light detector, a time control circuit and a processor. In first measurement, the time control circuit controls the light source to illuminate at a low modulation frequency, and the processor calculates a rough flying time according to a first detection signal of the light detector to determine an operating phase zone and a delay time. In second measurement, the time control circuit controls the light source to illuminate at a high modulation frequency and causes a light driving signal of the light source and a detecting control signal of the light detector to have a difference of the delay time, and the processor calculates a fine flying time according to a second detection signal of the light detector.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: January 28, 2025
    Inventors: Yueh-Lin Chung, Tso-Sheng Tsai
  • Publication number: 20240426991
    Abstract: There is provided a time of flight sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal without receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving the reflected light from the external object illuminated by the light source. The processor calculates deviation compensation and deviation correction associated with temperature variation according to the first output signal to accordingly calibrate a distance calculated according to the second output signal.
    Type: Application
    Filed: September 4, 2024
    Publication date: December 26, 2024
    Inventors: Tso-Sheng Tsai, Yueh-Lin Chung, Shin-Lin Wang
  • Patent number: 12117339
    Abstract: There is provided an optical sensor including an SPAD pixel array, multiple counters and a processor. The multiple counters count photon events of the SPAD pixel array to output an event-based vision sensor (EVS) frame per EVS period. The processor determines an index state of each pixel of the SPAD pixel array by comparing a counting value of each pixel respectively at a predetermined number of checking points with two predetermined thresholds, and calculates an index change of the index state associated with each pixel between adjacent EVS frames. The processor further changes the EVS period and/or adds a count offset to the counting value of each pixel to improve sensitivity of the event-based vision sensor.
    Type: Grant
    Filed: September 11, 2023
    Date of Patent: October 15, 2024
    Assignee: PIXART IMAGING INC.
    Inventors: Tso-Sheng Tsai, Kuei-Yang Tseng, Yueh-Lin Chung
  • Patent number: 12111426
    Abstract: There is provided a time of flight sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal without receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving the reflected light from the external object illuminated by the light source. The processor calculates deviation compensation and deviation correction associated with temperature variation according to the first output signal to accordingly calibrate a distance calculated according to the second output signal.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: October 8, 2024
    Inventors: Tso-Sheng Tsai, Yueh-Lin Chung, Shin-Lin Wang
  • Publication number: 20240069173
    Abstract: An output stage circuit, comprising: a current source circuit; an output switch circuit, comprising at least one output switch, coupled to the current source circuit, wherein an output current flows through a target circuit when the output switch circuit is conducted; at least one bias capacitor, coupled to the current source circuit; and a bias switch circuit, configured to receive a bias voltage, comprising at least one bias switch, coupled to the bias capacitor and the current source circuit, wherein the bias voltage charges the bias capacitor when the bias switch circuit is conducted. The present invention further discloses a DAC applying the output stage circuit and a TOF system applying the DAC. The conventional kick back issue can be improved by the mechanism provided by the present invention.
    Type: Application
    Filed: August 29, 2022
    Publication date: February 29, 2024
    Applicant: PixArt Imaging Inc.
    Inventors: Yueh-Lin Chung, Tso-Sheng Tsai
  • Publication number: 20240036209
    Abstract: There is provided an optical sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal by receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving reflected light from an inner surface of a package illuminated by the light source. The processor generates a random code according to the second output signal to modulate the light source, identifies whether to change an emission pattern of the light source according to a distance calculated according to the first output signal, and changes exposure intervals of the first pixel and the second pixel.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 1, 2024
    Inventors: Tso-Sheng TSAI, Yueh-Lin CHUNG
  • Publication number: 20230324524
    Abstract: An optical time-of-flight sensor includes a sensor array and a channel sampling circuit. The channel sampling circuit is arranged for receiving a photon pulse signal, generated from a senor unit of the sensor array, receiving a first channel selection signal to generate a first freezing signal, generating a first channel event signal to a first counting circuit in response to the first freezing signal and the photon pulse signal, and receiving the first channel event signal to generate and count a pulse number of the photon pulse signal received by the first channel; when a rising edge of the photon pulse signal occurs, the first freezing signal is kept at a previous state until a falling edge of the photon pulse signal occurs.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 12, 2023
    Applicant: PixArt Imaging Inc.
    Inventors: Yueh-Lin Chung, Tso-Sheng Tsai
  • Publication number: 20230288564
    Abstract: There is provided a distance measurement device including a light source, a light detector, a time control circuit and a processor. In first measurement, the time control circuit controls the light source to illuminate at a low modulation frequency, and the processor calculates a rough flying time according to a first detection signal of the light detector to determine an operating phase zone and a delay time. In second measurement, the time control circuit controls the light source to illuminate at a high modulation frequency and causes a light driving signal of the light source and a detecting control signal of the light detector to have a difference of the delay time, and the processor calculates a fine flying time according to a second detection signal of the light detector.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Inventors: Yueh-Lin CHUNG, Tso-Sheng TSAI
  • Publication number: 20230236299
    Abstract: There is provided a time of flight sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal without receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving the reflected light from the external object illuminated by the light source. The processor calculates deviation compensation and deviation correction associated with temperature variation according to the first output signal to accordingly calibrate a distance calculated according to the second output signal.
    Type: Application
    Filed: March 31, 2023
    Publication date: July 27, 2023
    Inventors: TSO-SHENG TSAI, YUEH-LIN CHUNG, SHIN-LIN WANG
  • Patent number: 11693116
    Abstract: There is provided a distance measurement device including a light source, a light detector, a time control circuit and a processor. In first measurement, the time control circuit controls the light source to illuminate at a low modulation frequency, and the processor calculates a rough flying time according to a first detection signal of the light detector to determine an operating phase zone and a delay time. In second measurement, the time control circuit controls the light source to illuminate at a high modulation frequency and causes a light driving signal of the light source and a detecting control signal of the light detector to have a difference of the delay time, and the processor calculates a fine flying time according to a second detection signal of the light detector.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: July 4, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: Yueh-Lin Chung, Tso-Sheng Tsai
  • Patent number: 11644554
    Abstract: There is provided a time of flight sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal without receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving the reflected light from the external object illuminated by the light source. The processor calculates deviation compensation and deviation correction associated with temperature variation according to the first output signal to accordingly calibrate a distance calculated according to the second output signal.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: May 9, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: Tso-Sheng Tsai, Yueh-Lin Chung, Shin-Lin Wang
  • Publication number: 20220066035
    Abstract: There is provided a distance measurement device including a light source, a light detector, a time control circuit and a processor. In first measurement, the time control circuit controls the light source to illuminate at a low modulation frequency, and the processor calculates a rough flying time according to a first detection signal of the light detector to determine an operating phase zone and a delay time. In second measurement, the time control circuit controls the light source to illuminate at a high modulation frequency and causes a light driving signal of the light source and a detecting control signal of the light detector to have a difference of the delay time, and the processor calculates a fine flying time according to a second detection signal of the light detector.
    Type: Application
    Filed: August 31, 2020
    Publication date: March 3, 2022
    Inventors: Yueh-Lin CHUNG, Tso-Sheng TSAI
  • Publication number: 20220026545
    Abstract: There is provided a time of flight sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal without receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving the reflected light from the external object illuminated by the light source. The processor calculates deviation compensation and deviation correction associated with temperature variation according to the first output signal to accordingly calibrate a distance calculated according to the second output signal.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 27, 2022
    Inventors: Tso-Sheng TSAI, Yueh-Lin CHUNG, Shin-Lin WANG
  • Publication number: 20190277800
    Abstract: A conductance measurement circuit includes an operation amplifier, a bias current source, a compensation current source, and an output stage circuit. In the operation amplifier, a first input end receives a reference voltage, a second input end is coupled to a tested object, and an output end generates a compensation voltage. The bias current source provides a bias current to a bias end. The compensation current source derives the compensation current from the bias end according to the compensation voltage. The output stage circuit provides a trans-conductance value and an output end equivalent resistance, generates an output current according to the compensation voltage, and generates an output signal according to the output current and the trans-conductance value.
    Type: Application
    Filed: June 6, 2018
    Publication date: September 12, 2019
    Applicant: National Tsing Hua University
    Inventors: Yueh-Lin Chung, Hsin Chen
  • Patent number: 9149392
    Abstract: In a casting apparatus for external skeletal and joint fixation, a plurality of articulated segments may comprise a plurality of cuboid members threaded on a continuous cord having distal ends connected to actuators. The cuboid members may be disposed between guide members threaded on the cord. Actuation of the actuators applies a tension force to the cord, thereby compressing the cuboid members together to form rigid cuboid segments and maintain the casting apparatus in a rigid configuration for skeletal and joint fixation.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: October 6, 2015
    Inventors: Bing-Tang Zhong, Ping-Chung Chung, Yueh-Lin Chung