Patents by Inventor Chih-Hung Lu

Chih-Hung Lu 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: 20120249293
    Abstract: A recognition system is used for recognizing an operation of a user. The recognition system includes a sensor module, a processing device, a playing device, and data storage device. The sensor module is used for generating a first sensing signal according to an operation of a user. The data storage device stores a plurality of objects. The processing device compares the first sensing signal with the plurality of objects to generate a recognition result in response to the first sensing signal. The playing device is used for playing the recognition result. The sensor module is used for, after the recognition result is played, recognizing a response of the user to generate a second sensing signal, and feeding the second sensing signal back to the processing device. The processing device judges whether the recognition result corresponding to the first sensing signal is correct according to the second sensing signal.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 4, 2012
    Applicant: PIXART IMAGING INC.
    Inventors: Yu-Han Chen, Ming-Tsan Kao, Chih-Hung Lu
  • Patent number: 8269158
    Abstract: In a sensing system and a method for obtaining a position of a pointer, the sensing system includes a sensing area, a reflective mirror, an image sensor and a processing circuit. The reflective mirror is configured for generating a mirror image of a pointer when the pointer approaches the sensing area. The image sensor is configured for sensing the pointer and the mirror image thereof when the pointer approaches the sensing area. When the pointer approaches the sensing area, the processing circuit calculates a coordinate value of the pointer according to an image sensed by the image sensor and a predetermined size of the pointer. The pointer forms an imaginary orthographic projection in the sensing area, the processing circuit regards the imaginary orthographic projection as a round projection, and a radius of the round projection is the predetermined size.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: September 18, 2012
    Assignee: Pixart Imaging Inc.
    Inventors: Hsin-Chia Chen, Tzung-Min Su, Chih-Hung Lu, Cho-Yi Lin
  • Publication number: 20120212639
    Abstract: An image sensor includes a sensor matrix including a plurality of sensing elements and a plurality of shutter control lines. Each sensing element includes an electronic shutter and a photo-detector, wherein the electronic shutter controls the exposure time of the photo-detector. Each shutter control line couples to a row or column of the electronic shutters, whereby different rows or columns of the electronic shutters can be independently controlled, and the photo-detectors in the same row or column can have the same exposure time.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 23, 2012
    Applicant: PIXART IMAGING INC.
    Inventors: Ren Hau GU, Chih Hsin LIN, Wen Han YAO, Hung Ching LAI, Shu Sian YANG, Yu Hao HUANG, Chih Hung LU, En Feng HSU, Chi Chieh LIAO
  • Publication number: 20120205166
    Abstract: A sensing system includes a complex reflector and an image sensor, in which the complex reflector is disposed on one side of a flat panel. The complex reflector includes a first section and a second section which are stacked, in which the first section provides a mirror image and a real image, and the second section provides a real image. The image sensor is used to capture an image generated by an object when touching a surface of the flat panel, and in the image captured by the image sensor, the object simultaneously generates a first object image in an image region corresponding to the second section and an image region corresponding to the first section, and generates a second object image in the image region corresponding to the first section.
    Type: Application
    Filed: July 19, 2011
    Publication date: August 16, 2012
    Applicant: PIXART IMAGING INC.
    Inventors: Yu-Hao Huang, Hsin-Chia Chen, Tzung-Min Su, Chih-Hsin Lin, Ren-Hau Gu, Chih-Hung Lu
  • Publication number: 20120188203
    Abstract: An image sensing module utilizes an image sensor to sense objects and a mirror image of the objects in a mirror through a plurality of first light filtering components with a first transmission spectrum and a plurality of second light filtering components with a second transmission spectrum for generating an image. A light filtering module substantially having the first transmission spectrum is disposed in front of the mirror. The image includes a plurality of pixels. Each pixel includes a first sub data and a second sub data. The image sensing module utilizes an image sensing controller to detect real images corresponding to the objects and virtual images correspond to the mirror image of the objects from the image according to the first sub data and the second sub data of the plurality of pixels.
    Type: Application
    Filed: June 23, 2011
    Publication date: July 26, 2012
    Inventors: Wen-Han Yao, Chih-Hung Lu, Tzung-Min Su, Chih-Hsin Lin, Shu-Sian Yang
  • Publication number: 20120146215
    Abstract: A bonding pad structure positioned on an integrated circuit includes a connecting pad, an insulation layer and a gold bump. The connecting pad is formed on the integrated circuit. The insulation layer is formed on the connecting pad, where the insulation layer has only one opening and a shape of the opening includes at least a bend. The gold bump is formed on the insulation layer, where the gold bump is electrically connected to the connecting pad through the opening of the insulation layer.
    Type: Application
    Filed: January 4, 2011
    Publication date: June 14, 2012
    Inventors: Yu-Ju Yang, Chih-Hung Lu
  • Patent number: 8180398
    Abstract: A multimedia processing system is provided for communicating among a baseband module, an image sensor module, and at least one display module in a mobile phone. The system comprises: a serial baseband interface that transmits and receives processing data from the baseband module; an image sensor interface that transmits and receives image data from the image sensor module; a display interface that transmits and receives display data from the display module, wherein the display interface comprises a display write enable output, a display read enable output, and a display transceiver means to transmit and receive the display data; and at least one register that includes a clock phase control bit, a clock polarity control bit for assisting the serial baseband interface to accommodate different interface standards, and a burst read mode control bit for bursting the serial baseband interface to read sequential processing data from a multimedia module or from the baseband module.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: May 15, 2012
    Assignee: PixArt Imaging Inc.
    Inventors: Chih-Hung Lu, Chien-Chang Pan, Cho-Yi Lin
  • Publication number: 20120098793
    Abstract: An on-screen-display module includes an optical signal processing unit and a control unit. The optical signal processing unit receives an optical signal sensed by an image sensor and outputs a touch signal. The control unit is electrically connected to the optical signal processing unit, and adjusts a display panel to execute a corresponding display effect according to the touch signal. By applying the on-screen-display module to a display device or an electronic device, the display effect of the display panel can be directly modulated through the control unit when the host is not powered on, and advantages of further saving system energy and being convenient for a user are achieved.
    Type: Application
    Filed: January 26, 2011
    Publication date: April 26, 2012
    Applicant: PIXART IMAGING INC.
    Inventors: Hsin Chi Cheng, Chih Hung Lu, Chun Yi Lu
  • Publication number: 20120098795
    Abstract: An optical touch screen system includes a touch screen, an image-sensing device, and a processing device. The image-sensing device generates a plurality of light-shielding information of an object at a plurality of time points. The processing device coupled to the image-sensing device includes a computing unit calculating a projected size difference value according to the plurality of light-shielding information, wherein the projected size difference value is a difference value between the projected sizes of the object on the touch screen at two different time points.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 26, 2012
    Applicant: PIXART IMAGING INC.
    Inventors: Chih Hung Lu, Tzung Min Su, Chih Hsin Lin, Hsin Chia Chen, Cheng Nan Tsai
  • Publication number: 20120075422
    Abstract: The present invention discloses a 3D information generator for use in an interactive interface. The 3D information generator includes: a MEMS light beam generator having at least one light source for providing a dot light beam and a MEMS mirror for projecting a movable scanning light beam according to the dot light beam to an object; an image sensor for sensing an image of the object to generate a 2D image information; and a processor for generating a distance information by triangulation method according to a reflection result of the scanning light beam scanning on the object, wherein the distance information is combined with the 2D image information to generate a 3D information.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Inventors: CHUAN-WEI WANG, Hsin-Chia Chen, Chih-Hung Lu
  • Publication number: 20120068940
    Abstract: An electronic device includes a housing, an optical touch module, and a detecting unit. The housing includes a first body and a second body, and an angle is formed between the first body and the second body. The optical touch module executes a positioning function by sensing signals. The detecting unit is configured to the optical touch module, and is used for detecting the angle. When the angle is smaller than a predetermined angle, the detecting unit instructs the optical touch module to pause executing the positioning function, so as to avoid false position determinations by the optical touch module.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 22, 2012
    Applicant: PIXART IMAGING INC.
    Inventors: Chuan Wei Wang, Cheng Nan Tsai, Chun Yi Lu, Horng Goung Lai, Chih Hung Lu
  • Patent number: 8125574
    Abstract: A remote controller for controlling a display device includes a first image sensor, a processing unit and an activation mechanism. The first image sensor is for sensing an object and forming a digital image. The processing unit is coupled to the first image sensor for calculating image variations of the object on the digital image, correspondingly controlling the display device according to the image variations and deactivating the first image sensor after the remote controller is idle for a predetermined period of time. The activation mechanism is coupled to the first image sensor for re-activating the deactivated first image sensor.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: February 28, 2012
    Assignee: PixArt Imaging Inc.
    Inventors: Meng Tsung Wu, Chih Hung Lu, Chao Chien Huang
  • Publication number: 20120044363
    Abstract: A method for controlling a host apparatus, includes steps of the followings. First, a pattern is projected to a detection region. Second, images of the detection region are captured and image information stream is generated based on the images. Third, an image information associated with the pattern is identified to be a background image information. Fourth, a currently captured image information is subtracted to the background image information to identify if an object appears in the detection region. Fifth, a motion of the identified object is determined based on a variation of the pattern reflected from the identified object to generate a control instruction to the host apparatus. A host apparatus, an interaction control system and a method for detecting a motion of an object are also provided.
    Type: Application
    Filed: July 5, 2011
    Publication date: February 23, 2012
    Applicant: PixArt Imaging Inc.
    Inventors: CHIH-HUNG LU, Hsin-Chia Chen, Shu-Sian Yang, Ren-Hau Gu, Ching-Lin Chung
  • Publication number: 20120044213
    Abstract: Optical touch display system includes a light source, a reflector, an image sensor, and a processing device. The light source emits light to at least one object directly and emits light to the at least one object via the reflector at the same time. Then the image sensor receives light reflected from the at least one object directly and light reflected via the reflector simultaneously to form a set of imaging objects which have similar color parameters on an image. Then the processing device produces a set of still image parameters of the image objects such as gravity centers and border boundaries. Based on the still image parameters, the processing device determines the coordinates of the least one object on the optical touch display.
    Type: Application
    Filed: November 3, 2011
    Publication date: February 23, 2012
    Inventors: Chih-Hung Lu, Hsin-Chia Chen, En-Feng Hsu, Chi-Chieh Liao, Ren-Hau Gu, Shu-Sian Yang, Yu-Hao Huang
  • Patent number: 8116912
    Abstract: A control device of a temperature controller, for adjusting the temperature of an environment having at least one active object, includes a first image sensor, a second image sensor, a process unit and a control unit. The first image sensor is for capturing a first image containing the image of the active object. The second image sensor is for capturing a second image containing the image of the active object. The process unit calculates a distance between the active object and the temperature controller according to the first and second images. The control unit controls an operational status of the temperature controller according to the distance calculated by the process unit. The present invention further provides a control method of a temperature controller.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: February 14, 2012
    Assignee: Pixart Imaging Inc.
    Inventors: Tzu Yi Chao, Hsin Chia Chen, Tzung Min Su, Chih Hung Lu, Cheng Kuang Sun, Cho Yi Lin
  • Publication number: 20120019443
    Abstract: A touch system comprises a transparent panel, a first image sensing module, a second image sensing module and a processing circuit. The first image sensing module is at least partially disposed on a first flat surface of the transparent for obtaining an image above the first flat surface. The second image sensing module is at least partially disposed under a second flat surface of the transparent for obtaining an image of the first flat surface through the second flat surface. When two pointers approach the first flat surface, the processing circuit calculates possible coordinates of the pointers according to the image obtained by the first image sensing module and calculates coordinates of the pointers according to the image obtained by the second image sensing module, so as to compare all of the coordinates to obtain actual coordinates of the pointers from the possible coordinates.
    Type: Application
    Filed: March 1, 2011
    Publication date: January 26, 2012
    Applicant: PixArt Imaging Inc.
    Inventors: HSIN-CHIA CHEN, Horng-Goung Lai, Chih-Hung Lu
  • Publication number: 20120001848
    Abstract: An interactive pointing device capable of switching capture ranges includes an image capturing element and a processing unit. The image capturing element operates in a first capture range or a second capture range. The image capturing element is used for capturing a light source, and outputting an image signal. When a distance from the interactive pointing device to the light source is smaller than a reference value, the processing unit controls the image capturing element to detect the light source with the first capture range, and the processing unit converts the image signal into a first coordinate data. When the distance is greater than the reference value, the processing unit controls the image capturing element to detect the light source with the second capture range, and the processing unit converts the image signal into a second coordinate data.
    Type: Application
    Filed: September 16, 2010
    Publication date: January 5, 2012
    Applicant: PIXART IMAGING INC.
    Inventors: Chih Hung Lu, En Feng Hsu, Shih Chi Chien, Ming Tsan Kao, Hsin Chia Chen, Chao Chien Huang, Cho Yi Lin
  • Publication number: 20110316773
    Abstract: An interactive pointing device capable of switching capture ranges includes an image capturing element and a processing unit. The image capturing element is used for capturing an optical signal, and outputting an image signal. The processing unit is used for determining a switching signal, and responsible for processing and analyzing the image signal. Through the determination about the switching signal and the coordinate conversion of the image signal by an arithmetic unit, the interactive pointing device capable of switching capture ranges is enabled to be operable in hosts with different resolutions.
    Type: Application
    Filed: September 13, 2010
    Publication date: December 29, 2011
    Applicant: PIXART IMAGING INC.
    Inventors: Chih Hung Lu, En Feng Hsu, Hsin Chia Chen, Chao Chien Huang, Cho Yi Lin
  • Publication number: 20110317040
    Abstract: A detection device includes an image capture element, a control signal generator, and a processor. The image capture element is used for capturing an optical signal, and outputting an image signal. The control signal generator is used for generating a control signal. The processor selectively converts the image signal into an object feature or an image feature in response to the control signal. Such a detection device can appropriately convert an operation mode, so as to have both efficacies of reducing the amount of transferred data and processing complex image data.
    Type: Application
    Filed: September 13, 2010
    Publication date: December 29, 2011
    Applicant: PIXART IMAGING INC.
    Inventors: Chih Hung Lu, En Feng Hsu, Hsin Chia Chen, Chao Chien Huang, Cho Yi Lin
  • Publication number: 20110317146
    Abstract: There is provided an optical distance detection system which includes a light source and a detection device. The light source is configured to illuminate a surface of an object. The detection device is configured to receive a reflected light from the surface of the object and to output a distance of the object according to the reflected light. The detection device includes a sensing module and a calculation module. The sensing module is configured to receive the reflected light to accordingly generate an image. The calculation module is for outputting the distance according to a light spot position and a light spot size of the reflected light forming on the image.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 29, 2011
    Applicant: PIXART IMAGING INC.
    Inventors: Ren Hau GU, En Feng HSU, Chi Chieh LIAO, Yi Fang LEE, Chih Hung LU, Chung You WU