Patents by Inventor En-Feng Hsu

En-Feng Hsu 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: 12273649
    Abstract: An optical sensor including a pixel matrix and an opaque layer is provided. The pixel matrix includes a plurality of unblocked pixels, a first pixel and a second pixel, which is arranged at a side of the first pixel in a row direction of the pixel matrix. The opaque layer covers upon a first region, which is a part of the first pixel, and upon a second region, which is a part of the second pixel, but does not cover upon the unblocked pixels, wherein the first region and the second region are symmetrically arranged in the row direction, and uncovered regions of the first pixel and the second pixel are arranged to be larger at a pixel edge than at a pixel center in a column direction of the pixel matrix.
    Type: Grant
    Filed: January 2, 2024
    Date of Patent: April 8, 2025
    Assignee: PIXART IMAGING INC.
    Inventors: Jung-Tai Lin, En-Feng Hsu
  • Patent number: 12254845
    Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: March 18, 2025
    Inventors: En-Feng Hsu, Meng-Huan Hsieh
  • Patent number: 12237039
    Abstract: An electronic device comprising: a clock pin; at least one data pin; a storage device, configured to store at least one program; a processing circuit, coupled to the data pin. A device ID setting method is performed when the processing circuit executes the program stored in the storage device. The device ID setting method comprises; (a) recording connections between pins of a first electronic device and pins of the electronic device by the electronic device, wherein the first electronic device comprises at least one data pin; and (b) applying the connections between the pins of the first electronic device and the pins of the electronic device as a device ID of the first electronic device by the electronic device.
    Type: Grant
    Filed: January 15, 2024
    Date of Patent: February 25, 2025
    Assignee: PixArt Imaging Inc.
    Inventors: En-Feng Hsu, Shiaw-Yu Jou, Tien-Chung Yang
  • Patent number: 12192655
    Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.
    Type: Grant
    Filed: November 7, 2023
    Date of Patent: January 7, 2025
    Assignees: PIXART IMAGING INC., TAIWAN SPACE AGENCY
    Inventors: Ren-Chieh Liu, Chao-Chi Lee, Yi-Yuan Chen, En-Feng Hsu
  • Patent number: 12184989
    Abstract: There is provided an optical sensor that acquires a first image frame corresponding to a first flicker period and acquires a second image frame corresponding to a second flicker period. The optical sensor respectively adds pixel data of every two pixels in neighboring rows of the first image frame and the second image frame to generate a low-resolution image frame for the motion detection.
    Type: Grant
    Filed: January 10, 2024
    Date of Patent: December 31, 2024
    Assignee: PIXART IMAGING INC.
    Inventor: En-Feng Hsu
  • Publication number: 20240273945
    Abstract: An electronic device for face recognition is provided. The electronic device is used to exclude an ineligible object to be identified according to the relative relationship between object distances and image sizes, the image variation with time and/or the feature difference between images captured by different cameras to prevent the possibility of cracking the face recognition by using a photo or a video.
    Type: Application
    Filed: April 25, 2024
    Publication date: August 15, 2024
    Inventor: EN-FENG HSU
  • Publication number: 20240247979
    Abstract: An optical sensor, comprising: a sensor array, comprising a bright region with at least one bright pixel and comprising a dark region with at least one dark pixel, wherein the dark pixel generates a sensing signal that is non-relevant to light emitted to the sensor array; a power noise detection circuit, configured to compute a power noise level of the sensing signal from the dark pixel; and a power noise compensation circuit, configured to control the optical sensor to perform a power noise compensation operation according to the power noise level. A related power noise reduction method is also disclosed. Based on the present invention, the power noise of the optical sensor can be reduced without increasing the power consumption, and the power noise for a low switch frequency can also be improved.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 25, 2024
    Applicant: PixArt Imaging Inc.
    Inventor: En-Feng Hsu
  • Publication number: 20240236261
    Abstract: An optical sensor including a pixel matrix and an opaque layer is provided. The pixel matrix includes a plurality of unblocked pixels, a first pixel and a second pixel, which is arranged at a side of the first pixel in a row direction of the pixel matrix. The opaque layer covers upon a first region, which is a part of the first pixel, and upon a second region, which is a part of the second pixel, but does not cover upon the unblocked pixels, wherein the first region and the second region are symmetrically arranged in the row direction, and uncovered regions of the first pixel and the second pixel are arranged to be larger at a pixel edge than at a pixel center in a column direction of the pixel matrix.
    Type: Application
    Filed: January 2, 2024
    Publication date: July 11, 2024
    Inventors: JUNG-TAI LIN, EN-FENG HSU
  • Patent number: 12019809
    Abstract: A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: June 25, 2024
    Assignee: PIXART IMAGING INC.
    Inventors: Tien-Chung Yang, Chia-Kai Chen, En-Feng Hsu, Chen-Lung Liu
  • Patent number: 12013738
    Abstract: An electronic device includes: a first sensing device, for selectively detecting a state of motion of an object at a first frequency; a second sensing device for selectively detecting the object to determine whether the object is in a specific space at a second frequency, wherein the second frequency is different from the first frequency; a light emitting device, for illuminating the object to make the first sensing device able to detect the state of motion of the object; and a control unit, coupled to the first sensing device and the second sensing device, for controlling operating states of the first sensing device and the second sensing device.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: June 18, 2024
    Assignee: PixArt Imaging Inc.
    Inventor: En-Feng Hsu
  • Patent number: 11995916
    Abstract: An electronic device for face recognition is provided. The electronic device is used to exclude an ineligible object to be identified according to the relative relationship between object distances and image sizes, the image variation with time and/or the feature difference between images captured by different cameras to prevent the possibility of cracking the face recognition by using a photo or a video.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: May 28, 2024
    Assignee: PIXART IMAGING INC.
    Inventor: En-Feng Hsu
  • Publication number: 20240168562
    Abstract: Glasses with gesture recognition function include a glasses frame and a gesture recognition system. The gesture recognition system is disposed on the glasses frame and configured to detect hand gestures in front of the glasses thereby generating a control command. The gesture recognition system transmits the control command to an electronic device to correspondingly control the electronic device.
    Type: Application
    Filed: January 15, 2024
    Publication date: May 23, 2024
    Inventors: HORNG-GOUNG LAI, EN-FENG HSU, MENG-HUAN HSIEH, YU-HAO HUANG, NIEN-TSE CHEN
  • Publication number: 20240153543
    Abstract: An electronic device comprising: a clock pin; at least one data pin; a storage device, configured to store at least one program; a processing circuit, coupled to the data pin. A device ID setting method is performed when the processing circuit executes the program stored in the storage device. The device ID setting method comprises; (a) recording connections between pins of a first electronic device and pins of the electronic device by the electronic device, wherein the first electronic device comprises at least one data pin; and (b) applying the connections between the pins of the first electronic device and the pins of the electronic device as a device ID of the first electronic device by the electronic device.
    Type: Application
    Filed: January 15, 2024
    Publication date: May 9, 2024
    Applicant: PixArt Imaging Inc.
    Inventors: En-Feng Hsu, Shiaw-Yu Jou, Tien-Chung Yang
  • Publication number: 20240147079
    Abstract: There is provided an optical sensor that acquires a first image frame corresponding to a first flicker period and acquires a second image frame corresponding to a second flicker period. The optical sensor respectively adds pixel data of every two pixels in neighboring rows of the first image frame and the second image frame to generate a low-resolution image frame for the motion detection.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Inventor: EN-FENG HSU
  • Publication number: 20240137456
    Abstract: An optical sensor including a pixel matrix and an opaque layer is provided. The pixel matrix includes a plurality of unblocked pixels, a first pixel and a second pixel, which is arranged at a side of the first pixel in a row direction of the pixel matrix. The opaque layer covers upon a first region, which is a part of the first pixel, and upon a second region, which is a part of the second pixel, but does not cover upon the unblocked pixels, wherein the first region and the second region are symmetrically arranged in the row direction, and uncovered regions of the first pixel and the second pixel are arranged to be larger at a pixel edge than at a pixel center in a column direction of the pixel matrix.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Inventors: JUNG-TAI LIN, EN-FENG HSU
  • Patent number: 11954259
    Abstract: Glasses with gesture recognition function include a glasses frame and a gesture recognition system. The gesture recognition system is disposed on the glasses frame and configured to detect hand gestures in front of the glasses thereby generating a control command. The gesture recognition system transmits the control command to an electronic device to correspondingly control the electronic device.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 9, 2024
    Assignee: PIXART IMAGING INC.
    Inventors: Horng-Goung Lai, En-Feng Hsu, Meng-Huan Hsieh, Yu-Hao Huang, Nien-Tse Chen
  • Publication number: 20240073563
    Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.
    Type: Application
    Filed: November 7, 2023
    Publication date: February 29, 2024
    Inventors: Ren-Chieh LIU, Chao-Chi LEE, Yi-Yuan CHEN, En-Feng HSU
  • Patent number: 11917322
    Abstract: An optical module including a light source and an optical sensor is provided. The optical sensor includes a pixel matrix and an opaque layer. The pixel matrix includes a plurality of unblocked pixels, a plurality of first pixels and a plurality of second pixels. The opaque layer covers upon a first region, which is a part of each first pixel, and upon a second region, which is a part of each second pixel, but does not cover upon the unblocked pixels, wherein the first region and the second region are symmetrically arranged in a first direction, and uncovered regions of the first pixels and the second pixels are arranged to be larger at a pixel edge than at a pixel center.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: February 27, 2024
    Assignee: PIXART IMAGING INC.
    Inventors: Jung-Tai Lin, En-Feng Hsu
  • Patent number: 11915780
    Abstract: An electronic device comprising: a clock pin; at least one data pin; a storage device, configured to store at least one program; a processing circuit, coupled to the clock pin and the data pin. A device ID setting method is performed when the processing circuit executes the program stored in the storage device. The device ID setting method comprises; (a) recording connections between pins between the first electronic device and the second electronic device by the second electronic device; (b) applying the connections as a device ID of the first electronic device by the second electronic device; and (c) setting pins of the first electronic device such that the data pins of the second electronic device are coupled to the data pins of the first electronic device.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: February 27, 2024
    Assignee: PixArt Imaging Inc.
    Inventors: En-Feng Hsu, Shiaw-Yu Jou, Tien-Chung Yang
  • Patent number: 11910101
    Abstract: There is provided an optical sensor that acquires a first image frame corresponding to a first flicker period and acquires a second image frame corresponding to a second flicker period. The optical sensor respectively adds pixel data of every two pixels in neighboring rows of the first image frame and the second image frame to generate a low-resolution image frame for the motion detection.
    Type: Grant
    Filed: March 4, 2023
    Date of Patent: February 20, 2024
    Inventor: En-Feng Hsu