Patents by Inventor Han-Ping CHENG

Han-Ping 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).

  • Patent number: 10884518
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: January 5, 2021
    Assignee: PIXART IMAGING INC.
    Inventors: Shu-Sian Yang, Han-Ping Cheng
  • Publication number: 20200174590
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Inventors: SHU-SIAN YANG, HAN-PING CHENG
  • Patent number: 10592011
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: March 17, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Shu-Sian Yang, Han-Ping Cheng
  • Patent number: 10534426
    Abstract: There is provided an interactive system, which includes a remote controller. The remote controller is equipped with a camera to capture an operating frame having a user image and a background image therein; and a processing unit to analyze the operating frame to identify a user image section and a background image section within the operating frame corresponding to the user image and the background image respectively, wherein the processing unit generates a movement information of the remote controller according to intensity distributions of the user image section and the background image section.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: January 14, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Shu-Sian Yang, Han-Ping Cheng, Daisuke Kumazaki, Yasuyuki Shimohata, Yukihiro Ukai
  • Publication number: 20190354206
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Application
    Filed: August 5, 2019
    Publication date: November 21, 2019
    Inventors: SHU-SIAN YANG, HAN-PING CHENG
  • Patent number: 10416792
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 17, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: Shu-Sian Yang, Han-Ping Cheng
  • Patent number: 10379627
    Abstract: A positioning method and a handheld device for performing the method are disclosed. In the method, a handheld device captures images corresponding to positions of a reference when the handheld device points toward the reference. A first image position, a first tilt angle indicative of a rotation angle of the handheld device, and a first pointing coordinate of the reference can obtained. A second pointing coordinate according to the first image position and a second tilt angle are obtained. Therefore, a first displacement vector between the first pointing coordinate and the second pointing coordinate can be computed. A third pointing coordinate can also be obtained. When a substantial movement of the positions of the reference revealed in the images captured by the handheld device is found, an output pointing coordinate is obtained. The output can be outputting a cursor parameter for controlling a cursor controlled by the handheld device.
    Type: Grant
    Filed: August 27, 2017
    Date of Patent: August 13, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: Han-Ping Cheng, Chao-Chien Huang
  • Publication number: 20190220110
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Inventors: SHU-SIAN YANG, HAN-PING CHENG
  • Patent number: 10296111
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 21, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: Shu-Sian Yang, Han-Ping Cheng
  • Patent number: 10114473
    Abstract: An interactive system includes a display, a processor and a remote controller. The display includes at least one reference beacon for providing light with a predetermined feature. The remote controller includes an image sensor configured to capture an image containing the reference beacon and calculates an aiming coordinate according to an imaging position of the reference beacon in the captured image. The processor calculates a scale ratio of a pixel size of the display with respect to that of the image captured by the image sensor and moves a cursor position according to the scale ratio and the aiming coordinate.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: October 30, 2018
    Assignee: PIXART IMAGING INC
    Inventors: Chi-Yang Huang, Chia-Cheun Liang, Chao-Chien Huang, Han-Ping Cheng, Ming-Tsan Kao
  • Patent number: 10067576
    Abstract: An exemplary embodiment of the present disclosure provides a handheld pointer device and a tilt angle adjustment method thereof. The tilt angle adjustment method includes the following steps. Images corresponding to the position of a reference point are captured as the handheld pointer device pointing toward the reference point to generate a plurality of frames. Whether the reference point has substantially moved is subsequently determined based on the plurality of frames. When determines that the reference point has not substantially moved, causes an accelerometer unit of the handheld pointer device to detect the accelerations thereof over various axes so as to update a first tilt angle being used currently to a second tilt angle, accordingly. The handheld pointer device may thus accurately and efficiently calculate the relative position of the reference point with the appropriate tilt angle of the handheld pointer device used.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: September 4, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Han-Ping Cheng, Chao-Chien Huang, Chia-Cheun Liang
  • Patent number: 10055011
    Abstract: There is provided an interactive system, which includes a remote controller. The remote controller is equipped with a camera to capture an operating frame having a user image and a background image therein; and a processing unit to analyze the operating frame to identify a user image section and a background image section within the operating frame corresponding to the user image and the background image respectively, wherein the processing unit generates a movement information of the remote controller according to intensity distributions of the user image section and the background image section.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: August 21, 2018
    Assignees: PIXART IMAGING INC., NINTENDO CO., LTD.
    Inventors: Shu-Sian Yang, Han-Ping Cheng, Daisuke Kumazaki, Yasuyuki Shimohata, Yukihiro Ukai
  • Publication number: 20180173301
    Abstract: There is provided an interactive system, which includes a remote controller. The remote controller is equipped with a camera to capture an operating frame having a user image and a background image therein; and a processing unit to analyze the operating frame to identify a user image section and a background image section within the operating frame corresponding to the user image and the background image respectively, wherein the processing unit generates a movement information of the remote controller according to intensity distributions of the user image section and the background image section.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Inventors: Shu-Sian YANG, Han-Ping CHENG, Daisuke KUMAZAKI, Yasuyuki SHIMOHATA, Yukihiro UKAI
  • Patent number: 9933863
    Abstract: An optical object recognition system includes at least two beacons, an image sensor and a processing unit. The beacons operate in an emission pattern and the emission pattern of the beacons has a phase shift from each other. The image sensor captures image frames with a sampling period. The processing unit is configured to recognize different beacons according to the phase shift of the emission pattern in the image frames.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: April 3, 2018
    Assignee: PIXART IMAGING INC.
    Inventors: Chia-Cheun Liang, Yi-Hsien Ko, Han-Ping Cheng
  • Publication number: 20180081459
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 22, 2018
    Inventors: Shu-Sian YANG, Han-Ping CHENG
  • Publication number: 20170371425
    Abstract: A positioning method and a handheld device for performing the method are disclosed. In the method, a handheld device captures images corresponding to positions of a reference when the handheld device points toward the reference. A first image position, a first tilt angle indicative of a rotation angle of the handheld device, and a first pointing coordinate of the reference can obtained. A second pointing coordinate according to the first image position and a second tilt angle are obtained. Therefore, a first displacement vector between the first pointing coordinate and the second pointing coordinate can be computed. A third pointing coordinate can also be obtained. When a substantial movement of the positions of the reference revealed in the images captured by the handheld device is found, an output pointing coordinate is obtained. The output can be outputting a cursor parameter for controlling a cursor controlled by the handheld device.
    Type: Application
    Filed: August 27, 2017
    Publication date: December 28, 2017
    Inventors: HAN-PING CHENG, CHAO-CHIEN HUANG
  • Patent number: 9804689
    Abstract: A pointer positioning method for a handheld pointer device includes: capturing a first frame containing a reference point when the handheld pointer device updates a first tilt angle presently used to a second tilt angle; computing a first pointing coordinate according to the image position of the reference point in the first frame and the first tilt angle; computing a second pointing coordinate according to the image position of the reference point in the first frame and the second tilt angle; capturing a second frame containing the reference point to compute a third pointing coordinate according to the image position of the reference point in the second frame and the second tilt angle; generating a cursor parameter for controlling a display position of a cursor on a display apparatus according to the first pointing coordinate, the second pointing coordinate, and the third pointing coordinate.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 31, 2017
    Assignee: PIXART IMAGING INC.
    Inventors: Han-Ping Cheng, Chao-Chien Huang
  • Patent number: 9524037
    Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: December 20, 2016
    Assignee: Pixart Imaging Inc.
    Inventors: Shu-Sian Yang, Han-Ping Cheng, Ming-Tsan Kao
  • Patent number: 9519380
    Abstract: A handwriting system includes a light source module, an image sensing apparatus and a processing circuit. The light source module is configured to provide a light source to illuminate an object on a plane. The image sensing apparatus is disposed on the plane and configured to capture an image of the object reflecting light emitted by the light source. The processing circuit is electrically connected to the image sensing apparatus and configured to receive the image captured by the image sensing apparatus, analyze the shape of each of light spot(s) in the captured image and screen out the light spot(s) not conforming to the shape of the object. Another handwriting system and two handwriting system operation methods are also provided.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: December 13, 2016
    Assignee: PIXART IMAGING INC.
    Inventors: Han-Ping Cheng, Shu-Sian Yang
  • Patent number: 9489077
    Abstract: The present invention discloses an optical touch panel system, an optical sensing module, and an operation method using for the same system. The system recognizes a track of an object moving on or above a touch control surface to determine a corresponding gesture function; it includes a touch control surface, at least one image sensor, and a processor. The touch control surface includes at least two touch control areas. The image sensor captures a plurality of continuous pictures including the images of the objects. The processer determines which touch control area the object is moving on or above according to a starting position or a path of the track, and executes a gesture function corresponding to the track and the touch control area.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: November 8, 2016
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Tzung-Min Su, Chih-Hsin Lin, Han-Ping Cheng, Ming-Tsan Kao, Yi-Hsien Ko