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: 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: 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: 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: 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
  • Patent number: 11849236
    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: June 27, 2022
    Date of Patent: December 19, 2023
    Assignees: PIXART IMAGING INC., TAIWAN SPACE AGENCY
    Inventors: Ren-Chieh Liu, Chao-Chi Lee, Yi-Yuan Chen, En-Feng Hsu
  • Publication number: 20230366678
    Abstract: A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first pixel in a predetermined direction. The first shielding layer is disposed on the first pixel and has a first opening, wherein an aperture of the first opening increases along the predetermined direction from a center of the first pixel. The second shielding layer is disposed on the second pixel and has a second opening, wherein a shape of the second opening is mirror symmetrical with that of the first opening in the predetermined direction. The at least one micro lens is disposed on the first shielding layer and the second shielding layer.
    Type: Application
    Filed: July 19, 2023
    Publication date: November 16, 2023
    Inventors: EN-FENG HSU, CHIA-YU LIU
  • Publication number: 20230326418
    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: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Inventors: EN-FENG HSU, MENG-HUAN HSIEH
  • Patent number: 11747140
    Abstract: A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first pixel in a predetermined direction. The first shielding layer is disposed on the first pixel and has a first opening, wherein an aperture of the first opening increases along the predetermined direction from a center of the first pixel. The second shielding layer is disposed on the second pixel and has a second opening, wherein a shape of the second opening is mirror symmetrical with that of the first opening in the predetermined direction. The at least one micro lens is disposed on the first shielding layer and the second shielding layer.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: September 5, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu
  • Publication number: 20230244319
    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: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Inventors: TIEN-CHUNG YANG, CHIA-KAI CHEN, EN-FENG HSU, CHEN-LUNG LIU
  • Patent number: 11715429
    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: March 21, 2022
    Date of Patent: August 1, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Meng-Huan Hsieh
  • Publication number: 20230209211
    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: March 4, 2023
    Publication date: June 29, 2023
    Inventor: EN-FENG HSU
  • Publication number: 20230175836
    Abstract: A distance determining system comprising: a light source, configured to emit light; a first light sensing region, away from the light source for a first distance, comprising at least one first light sensing device; a second light sensing region, away from the light source for a second distance larger than the first distance, comprising at least one second light sensing device; and a processing circuit, configured to compute distance information of an object which reflects the light to the first light sensing region and the second light sensing region, according to a first relation between a first light intensity sensed by the first light sensing region and a second light intensity sensed by the second light sensing region.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 8, 2023
    Applicant: PixArt Imaging Inc.
    Inventors: En-Feng Hsu, Chia-Kai Chen
  • Patent number: 11662828
    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: May 28, 2021
    Date of Patent: May 30, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: Tien-Chung Yang, Chia-Kai Chen, En-Feng Hsu, Chen-Lung Liu
  • Publication number: 20230123405
    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: June 27, 2022
    Publication date: April 20, 2023
    Inventors: Ren-Chieh LIU, Chao-Chi LEE, Yi-Yuan CHEN, En-Feng HSU
  • Patent number: 11632502
    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 adds the first image frame to the second image frame to generate a sum of image frames for the motion detection. Or, 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: September 10, 2021
    Date of Patent: April 18, 2023
    Assignee: PIXART IMAGING INC.
    Inventor: En-Feng Hsu
  • Publication number: 20230083218
    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 adds the first image frame to the second image frame to generate a sum of image frames for the motion detection. Or, 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: September 10, 2021
    Publication date: March 16, 2023
    Inventor: En-Feng HSU
  • Publication number: 20230076392
    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: November 11, 2022
    Publication date: March 9, 2023
    Inventor: EN-FENG HSU
  • Publication number: 20230066270
    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: Application
    Filed: August 27, 2021
    Publication date: March 2, 2023
    Applicant: PixArt Imaging Inc.
    Inventors: En-Feng Hsu, Shiaw-Yu Jou, Tien-Chung Yang
  • Patent number: 11527103
    Abstract: An auxiliary filtering device for face recognition is provided. The auxiliary filtering 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 6, 2020
    Date of Patent: December 13, 2022
    Assignee: PIXART IMAGING INC.
    Inventor: En-Feng Hsu