Patents Assigned to PixArt Imaging Incorporation, R.O.C.
  • Patent number: 11126832
    Abstract: The present invention discloses an identification system which includes an image sensor, a storage unit and a comparing unit. The image sensor captures a plurality of images of the motion trajectory generated by a user at different timings. The storage unit has stored motion vector information of a group of users including or not including the user generating the motion trajectory. The comparing unit compares the plurality of images with the motion vector information to identify the user. The present invention also provides an identification method.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: September 21, 2021
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Ren-Hau Gu, Chih-Yen Wu
  • Patent number: 10372224
    Abstract: An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: August 6, 2019
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao
  • Patent number: 9727152
    Abstract: The present invention discloses a method and apparatus for controlling an object movement on a screen. The method senses a first change in a position of a pointing device in a coordinate system to obtain a first displacement, and controls the object movement by a first displacement output ratio according to the first displacement. The method senses a second change in a position of the pointing device in a coordinate system to obtain a second displacement, and controls the object movement by a second displacement output ratio when a difference between a direction of the first displacement and a direction of the second displacement exceeds a first angle threshold, wherein the second displacement output ratio is lower than the first displacement output ratio.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: August 8, 2017
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventors: Chia-Cheun Liang, Yi-Hsien Ko
  • Patent number: 9696853
    Abstract: An optical touch apparatus includes a first light source, a second light source, a light guide device, a light reflecting device and an image sensing module. The first light source emits first light beam which travels within the light guide device and is reflective by an object close to or in contact with a surface of the light guide device to become a first image light beam. The first image light beam is reflected by a light reflecting device. The image sensing module receives the first image light beam. The second light source emits a second light beam, wherein when the optical touch apparatus moves on a working surface, the second light beam is reflective by the working surface to form a second image light beam which is received by the same image sensing module.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: July 4, 2017
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Ming-Tsan Kao, Hui-Hsuan Chen, Tien-Chia Liu, Hsin-Chia Chen
  • Patent number: 9529521
    Abstract: The present invention discloses a gesture detecting apparatus which includes an image capturing device and a processing unit. The image capturing device is for capturing an object light beam reflected by an object and outputting corresponding image information accordingly. The processing unit is for processing the image information and generating a first command or a second command accordingly. The steps of generating the first command and the second command by the processing unit include: outputting a first command if an image size of the image information increases with a relatively higher velocity and decreases with a relatively lower velocity in a sequential time series; and outputting a second command if the image size of the image information increases with a relatively lower velocity and decreases with a relatively higher velocity in the sequential time series.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: December 27, 2016
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Yu-Hao Huang, Ming-Tsan Kao, En-Feng Hsu, Meng-Huan Hsieh
  • 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
  • Patent number: 9489085
    Abstract: The present invention discloses an optical touch panel system and a positioning method for positioning an object existing in a touch control area. The system includes: at least one reflective element disposed on a side of the touch control area; at least one light guide module disposed on a side of the touch control area adjacent to or opposite the reflective element and emitting light; an image sensor capturing an image of the object; a plurality of photo detectors arranged on a side of the touch control area adjacent to the image sensor and sensing the object to obtain shade information; and a processor calculating the coordinates of the object according to the image and the shade information.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: November 8, 2016
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Chun-Shen Lin, Chun-Yi Lu, Chi-Chieh Liao, Tzung-Min Su, Ming-Tsan Kao
  • Patent number: 9471180
    Abstract: The present invention discloses an optical touch panel system and a positioning method for positioning an object in a touch control area. The system includes: at least two reflective elements respectively disposed on a first side and a second side of the touch control area, wherein the sum of lengths of the first side and the second side is larger than the sum of lengths of the two reflective elements; two lighting elements respectively disposed on a third side and a fourth side of the touch control area; an image sensor forming projected images by capturing an image of the object and at least one mirror image of the object formed by the two reflective elements; and a processor calculating the coordinates of the object according to geometric information of the projected images.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: October 18, 2016
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Ming-Tsan Kao, Chi-Chieh Liao, Chih-Hsin Lin, Tzung-Min Su
  • Publication number: 20160274672
    Abstract: An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 22, 2016
    Applicant: PixArt Imaging Incorporation, R.O.C.
    Inventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao
  • Patent number: 9280714
    Abstract: The present invention discloses an identification system which includes an image sensor, a storage unit and a comparing unit. The image sensor captures a plurality of images of the motion trajectory generated by a user at different timings. The storage unit has stored motion vector information of a group of users including or not including the user generating the motion trajectory. The comparing unit compares the plurality of images with the motion vector information to identify the user. The present invention also provides an identification method.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: March 8, 2016
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Ren-Hau Gu, Chih-Yen Wu
  • Patent number: 9244093
    Abstract: A micro-electro-mechanical sensing device including a substrate, a semiconductor layer, a supporting pillar, a first suspended arm, a connecting member, a second suspended arm, and a proof mass is provided. The semiconductor layer is disposed on or above the substrate. The supporting pillar is disposed on or above the semiconductor layer. The first suspended arm is disposed on the supporting pillar. The supporting connects a portion of the first suspended arm. The connecting member directly or indirectly connects another portion of the first suspended arm. The second suspended arm has a first surface and a second surface opposite to the first surface. The connecting member connects a portion of the first surface. The proof mass connects the second suspended arm and it includes a portion of the second suspended arm as a portion of the proof mass. A method for manufacturing the device is also provided.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: January 26, 2016
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Chih-Ming Sun, Ming-Han Tsai
  • Patent number: 9189106
    Abstract: An optical touch panel system includes: a reflective element disposed on a first side of the touch control area; two lighting elements respectively disposed on a second side and a third side of the touch control area , wherein the second side and the third side are adjacent to each other, and the third side is opposite the first side; a first light projection apparatus including a mirror and a light generator, disposed on the first side and at a location adjacent to a fourth side of the touch control area; an image sensor capturing a first picture and a second picture respectively when the light generator is inactivated and activated; and a processor calculating a coordinate of the object according to geometrical information of an projected object image and a projected mirror image of the object in the first picture and the second picture.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: November 17, 2015
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Tzung-Min Su, Chih-Hsin Lin, Ming-Tsan Kao
  • Patent number: 9150403
    Abstract: The present invention discloses a MEMS microphone device and its manufacturing method. The MEMS microphone device includes: a substrate including a first cavity; a MEMS device region above the substrate, wherein the MEMS device region includes a metal layer, a via layer, an insulating material region and a second cavity; a mask layer above the MEMS device region; a first lid having at least one opening communicating with the second cavity, the first lid being fixed above the mask layer; and a second lid fixed under the substrate.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: October 6, 2015
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Chuan-Wei Wang, Chih-Ming Sun
  • Patent number: 9122350
    Abstract: An optical touch apparatus includes a first light source, a second light source, a light guide device, a light reflecting device and an image sensing module. The first light source emits first light beam which travels within the light guide device and is reflective by an object close to or in contact with a surface of the light guide device to become a first image light beam. The first image light beam is reflected by a light reflecting device. The image sensing module receives the first image light beam. The second light source emits a second light beam, wherein when the optical touch apparatus moves on a working surface, the second light beam is reflective by the working surface to form a second image light beam which is received by the same image sensing module.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: September 1, 2015
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Ming-Tsan Kao, Hui-Hsuan Chen, Tien-Chia Liu, Hsin-Chia Chen
  • Patent number: 9058064
    Abstract: An interactive image system includes a host generating interactive images; a light source generating at least one light beam; and an interactive control device transmitting data to the host and switching between an operation status and an idle status. The interactive control device includes: an image sensor capturing a first picture in the idle status, wherein the first picture has a reference point image formed by the light beam; and a control circuit selecting a pixel area according to the position of the reference point image in the first picture, controlling the image sensor to obtain a second picture according to the pixel area, and comparing a threshold value with the brightness information of at least one pixel in the pixel area of the second picture to confirm whether the interactive control device is still in the idle status.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: June 16, 2015
    Assignee: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Chia-Cheun Liang, Ming-Tsan Kao
  • Patent number: 9029756
    Abstract: The present invention discloses an optical displacement detection apparatus and an optical displacement detection method. The optical displacement detection apparatus comprises: at least two light sources for projecting light of different spectrums to a surface under detection, respectively; an image capturing device for receiving light reflected from the surface under detection and converting it into electronic signals; and a processing control circuit for calculating displacement according to the electronic signals from the image capturing device, wherein the processing control circuit is capable of switching between the light sources.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 12, 2015
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Hui-Hsuan Chen, Hsin-Chia Chen, Han-Chi Liu, Ching-Lin Chung, Yen-Min Chang
  • Patent number: 9010185
    Abstract: The present invention discloses a three-dimensional micro-electro-mechanical-system sensor. The sensor includes movable first electrodes, plural movable second electrodes, plural fixed third electrodes, and plural fixed fourth electrodes. The first electrodes and their adjacent third electrodes form at least one first capacitor and at least one second capacitor, and the second electrodes and their adjacent fourth electrodes form at least one third capacitor. The capacitance change of the first capacitor reflects the displacement of the proof mass along a first axis, the capacitance change of the second capacitor reflects the displacement of the proof mass along a second axis, and the capacitance change of the third capacitor reflects the displacement of the proof mass along a third axis. The first, second, and third axes define a three-dimensional coordinate system.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: April 21, 2015
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Ming-Han Tsai, Chih-Ming Sun
  • Patent number: 8884904
    Abstract: The present invention discloses a touch panel apparatus, system and an operation method using for the same system. The apparatus recognizes a track of an object for executing a corresponding gesture function, and it includes: a touch control surface for the object to move on or above to form the track; at least one image sensor for capturing a plurality of continuous pictures including images of the object; and a processor for obtaining a plurality of displacement vectors according to changes in positions of the images of the object, comparing the displacement vectors with a set of basic vectors to obtain a code or a set of codes, and recognizing the code or the set of codes to execute the corresponding gesture function.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: November 11, 2014
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventors: Tzung-Min Su, Chih-Hsin Lin, Han-Ping Cheng, Ming-Tsan Kao
  • Patent number: 8878132
    Abstract: A photosensor device includes a plurality of first well structures, a light shielding layer, and a plurality of second well structures. The first well structures are disposed in a substrate. The light shielding layer disposed is on the substrate; it covers a portion of the first well structures and exposes the rest portion of the first well structures. The covered first well structures are adjacent to the exposed first well structures exposed. The exposed first well structures generate a first photocurrent according to incident light. The second well structures generate a second photocurrent according to incident light. A total surface area of the second well structures is substantially equal to a total surface area of the exposed first well structures. A method for determining the incident light is also provided.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 4, 2014
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: En-Feng Hsu, Chin-Poh Pang
  • Patent number: 8772885
    Abstract: The present invention discloses a MEMS sensing device which comprises a substrate, a MEMS device region, a film, an adhesive layer, a cover, at least one opening, and a plurality of leads. The substrate has a first surface and a second surface opposite the first surface. The MEMS device region is on the first surface, and includes a chamber. The film is overlaid on the MEMS device region to seal the chamber as a sealed space. The cover is mounted on the MEMS device region and adhered by the adhesive layer. The opening is on the cover or the adhesive layer, allowing the pressure of the air outside the device to pressure the film. The leads are electrically connected to the MEMS device region, and extend to the second surface.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: July 8, 2014
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventors: Chuan-Wei Wang, Ming-Han Tsai