Patents by Inventor Chia-Yu Liu

Chia-Yu Liu 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: 20200106979
    Abstract: A sensing module is provided, including a sensing unit. The sensing unit is formed by a plurality of sensing pixels arranged in an array. Each of the plurality of sensing pixels includes a body and a sensing element. The sensing element is disposed on a bottom surface of the body. During sensing, a light may enter and pass through the bodies and be transmitted to the sensing elements. The sensing pixels are divided into at least a first group and a second group from a center of the array to a periphery of the array, and photon collection efficiency of sensing pixels in the first group is less than photon collection efficiency of sensing pixels in the second group. Meanwhile, a design method of a sensing module is also provided.
    Type: Application
    Filed: September 12, 2019
    Publication date: April 2, 2020
    Applicant: Egis Technology Inc.
    Inventor: Chia-Yu Liu
  • Patent number: 10600196
    Abstract: A distance measurement device including a pixel array and a cover layer is provided. The cover layer is covered on the pixel array. The cover layer includes a first cover pattern covering on a first area of a plurality of first pixels and a second cover pattern covering on a second area of a plurality of second pixels. The first area and the second area are rectangles of mirror symmetry along a first direction.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 24, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu
  • Publication number: 20200072603
    Abstract: An optical sensor includes at least two optical sensing pixels and at least two different grating elements. These grating elements are disposed above these optical sensing pixels correspondingly.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 5, 2020
    Inventors: EN-FENG HSU, CHIA-YU LIU
  • Patent number: 10578431
    Abstract: An optical sensor includes at least two optical sensing pixels and at least two different grating elements. These grating elements are disposed above these optical sensing pixels correspondingly.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: March 3, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu
  • Patent number: 10386484
    Abstract: There is provided an optical apparatus including a substrate, a light emitting device, a light sensitive device and a plurality of micro-lenses. The light emitting device is disposed on the substrate and adapted to provide a light beam. The light sensitive device is disposed on the substrate and adapted to receive a light beam reflected from an object, wherein the light sensitive device has a plurality of photosensitive units arranged in matrix. The micro-lenses are disposed above the light sensitive device and respectively opposite to the associated photosensitive units. There is further provided a light sensitive device with micro-lens and a manufacturing method thereof.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: August 20, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu, Ching-Wei Chen
  • Patent number: 10304883
    Abstract: A color filter array and an image sensing device are disclosed. The color filter array includes a plurality of color cells arranged into a matrix. Each color cell has an intermediate region and a peripheral region. The peripheral region is configured around the intermediate region. The intermediate region forms a color filter object. Parts of the peripheral region form transparent objects. The transparent objects extend to edge parts of the color cells from an edge of the intermediate region. The remaining peripheral regions form the color filter objects. The color filter object is a high-refractive index material. The transparent object is a low-refractive index material. Therefore, in each color cell, the color filter objects configured in the intermediate region and the peripheral region reduce the spectral crosstalk, and the transparent objects configured in the peripheral region reduce the optical crosstalk, thereby enhancing the image quality sensed by sensor chips.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: May 28, 2019
    Assignee: PIXART IMAGING INC.
    Inventor: Chia-Yu Liu
  • Publication number: 20190041204
    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: October 11, 2018
    Publication date: February 7, 2019
    Inventors: EN-FENG HSU, CHIA-YU LIU
  • Publication number: 20180347976
    Abstract: An optical sensor includes at least two optical sensing pixels and at least two different grating elements. These grating elements are disposed above these optical sensing pixels correspondingly.
    Type: Application
    Filed: August 13, 2018
    Publication date: December 6, 2018
    Inventors: En-Feng Hsu, Chia-Yu Liu
  • Patent number: 10139223
    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: March 25, 2016
    Date of Patent: November 27, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu
  • Patent number: 10094661
    Abstract: An optical sensor includes at least two optical sensing pixels and at least two different grating elements. These grating elements are disposed above these optical sensing pixels correspondingly.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: October 9, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu
  • Publication number: 20180239018
    Abstract: There is provided an optical apparatus including a substrate, a light emitting device, a light sensitive device and a plurality of micro-lenses. The light emitting device is disposed on the substrate and adapted to provide a light beam. The light sensitive device is disposed on the substrate and adapted to receive a light beam reflected from an object, wherein the light sensitive device has a plurality of photosensitive units arranged in matrix. The micro-lenses are disposed above the light sensitive device and respectively opposite to the associated photosensitive units. There is further provided a light sensitive device with micro-lens and a manufacturing method thereof.
    Type: Application
    Filed: April 18, 2018
    Publication date: August 23, 2018
    Inventors: EN-FENG HSU, CHIA-YU LIU, CHING-WEI CHEN
  • Publication number: 20180232898
    Abstract: A distance measurement device including a pixel array and a cover layer is provided. The cover layer is covered on the pixel array. The cover layer includes a first cover pattern covering on a first area of a plurality of first pixels and a second cover pattern covering on a second area of a plurality of second pixels. The first area and the second area are rectangles of mirror symmetry along a first direction.
    Type: Application
    Filed: April 12, 2018
    Publication date: August 16, 2018
    Inventors: EN-FENG HSU, CHIA-YU LIU
  • Patent number: 9989640
    Abstract: There is provided an optical apparatus including a substrate, a light emitting device, a light sensitive device and a plurality of micro-lenses. The light emitting device is disposed on the substrate and adapted to provide a light beam. The light sensitive device is disposed on the substrate and adapted to receive a light beam reflected from an object, wherein the light sensitive device has a plurality of photosensitive units arranged in matrix. The micro-lenses are disposed above the light sensitive device and respectively opposite to the associated photosensitive units. There is further provided a light sensitive device with micro-lens and a manufacturing method thereof.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: June 5, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu, Ching-Wei Chen
  • Patent number: 9978154
    Abstract: A distance measurement device including a pixel array and a cover layer is provided. The cover layer is covered on the pixel array. The cover layer includes a first cover pattern covering on a first area of a plurality of first pixels and a second cover pattern covering on a second area of a plurality of second pixels. The first area and the second area are rectangles of mirror symmetry along a first direction.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: May 22, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: En-Feng Hsu, Chia-Yu Liu
  • Publication number: 20170330910
    Abstract: A color filter array and an image sensing device are disclosed. The color filter array includes a plurality of color cells arranged into a matrix. Each color cell has an intermediate region and a peripheral region. The peripheral region is configured around the intermediate region. The intermediate region forms a color filter object. Parts of the peripheral region form transparent objects. The transparent objects extend to edge parts of the color cells from an edge of the intermediate region. The remaining peripheral regions form the color filter objects. The color filter object is a high-refractive index material. The transparent object is a low-refractive index material. Therefore, in each color cell, the color filter objects configured in the intermediate region and the peripheral region reduce the spectral crosstalk, and the transparent objects configured in the peripheral region reduce the optical crosstalk, thereby enhancing the image quality sensed by sensor chips.
    Type: Application
    Filed: February 23, 2017
    Publication date: November 16, 2017
    Inventor: Chia-Yu Liu
  • Publication number: 20170004624
    Abstract: A distance measurement device including a pixel array and a cover layer is provided. The cover layer is covered on the pixel array. The cover layer includes a first cover pattern covering on a first area of a plurality of first pixels and a second cover pattern covering on a second area of a plurality of second pixels. The first area and the second area are rectangles of mirror symmetry along a first direction.
    Type: Application
    Filed: May 10, 2016
    Publication date: January 5, 2017
    Inventors: En-Feng HSU, Chia-Yu LIU
  • Publication number: 20160313118
    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: March 25, 2016
    Publication date: October 27, 2016
    Inventors: En-Feng HSU, Chia-Yu LIU
  • Patent number: 9298268
    Abstract: An electronic device and an operating method thereof are provided. The operating method includes the following steps: setting whether a near index is valid or invalid in response to a near event or a far event of the device; setting a first tilting angle index valid in response to a tilting angle of the device staying within a first tilting angle range for a first predetermined time period; setting a first angular velocity index valid in response to an angular velocity of the device staying within a first angular velocity range for a second time period; setting a second tilting angle index valid in response to the tilting angle of the device staying within a second tilting angle range for a third predetermined time period and activating a function based on the near index, the first tilting angle index, the first angular velocity index and the second tilting angle index.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: March 29, 2016
    Assignee: HTC Corporation
    Inventors: Chia-Yu Liu, Chia-Hsiang Chen
  • Publication number: 20160084650
    Abstract: An optical sensor includes at least two optical sensing pixels and at least two different grating elements. These grating elements are disposed above these optical sensing pixels correspondingly.
    Type: Application
    Filed: May 21, 2015
    Publication date: March 24, 2016
    Inventors: EN-FENG HSU, CHIA-YU LIU
  • Patent number: 9261904
    Abstract: A point of sale system includes a display device, a pivoting mechanism, a first electronic component and a base having a top surface. The display device includes a casing formed with a first receiving groove and a screen coupled to the casing and movable relative to the base between unfolded and folded positions. The pivoting mechanism interconnects pivotally the display device and the base. The first electronic component is connected to the casing and is movable between an inactive position where the first electronic component is retracted within the first receiving groove, and an active position where the first electronic component protrudes out of the first receiving groove.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: February 16, 2016
    Assignee: Top Victory Investments Limited
    Inventors: Chia-Yu Liu, Yi-Sheng Lin, Kuo-Chiang Chuang