Patents by Inventor Chih-Hsin Lin

Chih-Hsin Lin 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: 8860695
    Abstract: An optical touch system includes a touch surface having a first touch region and a second touch region, a reflective member for generating a reflection of an object on the touch surface, an image sensor for providing an image of the object and an image of the reflection, and a processing unit. The image sensor is represented by either first reference coordinate data or second reference coordinate data. The processing unit is configured to compute the coordinate data of the object using the first reference coordinate data, the image of the object, and the image of the reflection when the object is in the first touch region, and configured to compute the coordinate data of the object using the second reference coordinate data, the image of the object, and the image of the reflection when the object is in the second touch region.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: October 14, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Tzung Min Su, Cheng Nan Tsai, Sen Huang Huang, Chih Hsin Lin
  • Patent number: 8836831
    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: Grant
    Filed: February 20, 2012
    Date of Patent: September 16, 2014
    Assignee: 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: 20140225868
    Abstract: An optical lens is configured in front of an image-capturing lens of an image-capturing device. A light-emitting unit of the image-capturing device emits a light beam. The optical lens includes a pair of peripheral compensation portions and a central diverging portion. Each peripheral compensation portion has a first convex surface and a first concave surface arranged opposite to the first convex surface. The central diverging portion is arranged between the peripheral compensation portions, and has a second concave surface and an oppositely arranged light incident surface. The second concave surface is arranged between the first convex surfaces. The light incident surface is arranged between the first concave surfaces. The optical axis of the light beam sequentially aligns with the light incident surface and the second concave surface. The light rays of the light beam pass through the first concave surface and the first convex surface in sequence.
    Type: Application
    Filed: September 27, 2013
    Publication date: August 14, 2014
    Applicant: Pixart Imaging Inc.
    Inventors: YU-HSIANG HUANG, CHUN-YI LU, TZUNG-MIN SU, CHIH-HSIN LIN, JIA-HONG HUANG
  • Patent number: 8786719
    Abstract: A sensor array module with wide angle for creating a composite image includes a first image sensor, a second image sensor, a storage unit and a processor. The first image sensor is for capturing a first image. The second image sensor is for capturing a second image and has a relative spatial relationship with respective to the first image sensor. The storage unit stores at least one transformation matrix obtained according to the relative spatial relationship between the first and the second image sensors. The processor combines the first image and the second image by using the transformation matrix to create the composite image. The present invention also provides an image calibration method, an operation method and an application for a sensor array module with wide angle.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: July 22, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Tzu Yi Chao, Hsin Chia Chen, Chih Hsin Lin, Ren Hau Gu, Chang Che Tsai
  • Patent number: 8780042
    Abstract: The present invention provides a cursor control method for adjusting a smoothness of a cursor motion shown on an image display according to a trace variation detected by a detection device.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: July 15, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Tzung Min Su, Chih Hsin Lin, Hsin Chia Chen, Yu Chia Lin
  • Patent number: 8771026
    Abstract: A conductive assembly having a conductive terminal, a conductive ribbon, and a clamp structure is disclosed. The clamp structure includes a base plate and a pair of jaws. The jaws extend respectively from two transverse sides of the base plate and form a V-shape opening being opposite to the base plate. An aperture is formed longitudinally in the center of the base plate, wherein the transverse width of the aperture is wider than the opening. The clamp structure stably and firmly holding the conductive terminal and the conductive ribbon.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: July 8, 2014
    Assignee: K.S. Terminals Inc.
    Inventor: Chih-Hsin Lin
  • Publication number: 20140176964
    Abstract: An optical touch system comprises a first light-emitting unit, a second light-emitting unit, a first image sensor having a first filter, and a second image sensor having a second filter. The first light-emitting unit generates first wavelength band light. The second light-emitting unit generates second wavelength band light. The first light-emitting unit generates first wavelength band light when the first image sensor is capturing an image. The first filter allows first wavelength band light to enter into the first image sensor and blocks second wavelength band light. The second light-emitting unit generates second wavelength band light when the second image sensor is capturing an image. The second filter allows second wavelength band light to enter into the second image sensor and block first wavelength band light.
    Type: Application
    Filed: August 27, 2013
    Publication date: June 26, 2014
    Applicant: PIXART IMAGING INC.
    Inventors: Tzung Min Su, Yu Chia Lin, Kuan Hsun Wang, Chuan-Ching Lin, Chih Hsin Lin
  • Patent number: 8760437
    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: Grant
    Filed: July 19, 2011
    Date of Patent: June 24, 2014
    Assignee: Pixart Imaging Inc.
    Inventors: Yu-Hao Huang, Hsin-Chia Chen, Tzung-Min Su, Chih-Hsin Lin, Ren-Hau Gu, Chih-Hung Lu
  • Publication number: 20140111482
    Abstract: An exposure mechanism of an optical touch system, which includes a plurality of image sensors and a plurality of active light sources each irradiating corresponding to the associated image sensor, includes: capturing image frames using the image sensors with a sampling cycle to allow each of the image sensors to capture a bright image, wherein the sampling cycle includes a plurality of working modes and in each of the working modes at least one of the image sensors captures the bright image in a sampling interval; simultaneously capturing a dark image using all the image sensors in a denoising sampling interval; and calculating a differential image between the bright image and the dark image captured by each image sensor.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 24, 2014
    Applicant: PixArt Imaging Inc
    Inventors: Ming-Tsan KAO, Tzung-Min SU, Chih-Hsin LIN
  • Publication number: 20140111481
    Abstract: There is provided an optical touch system including a touch surface, a plurality of image sensors and a plurality or compensation light sources, wherein each of the image sensors is adjacent to one of the compensation light sources. When one of the image sensors is capturing an image frame, the compensation light source not adjacent to and within a field of view of the image sensor which is capturing the image frame irradiates so as to compensate a brightness distribution of the image frame.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 24, 2014
    Applicant: PixArt Imaging Inc.
    Inventors: Cheng-Nan TSAI, Tzung-Min SU, Chih-Hsin LIN, Yaun-Yu PENG, Yu-Chia LIN, Chuan-Ching LIN, Teng Wei HSU
  • Patent number: 8701254
    Abstract: A clamp structure includes a base plate, a pair of first jaws, and a pair of second jaws. The first jaws extend respectively from two sides of the base plate in a face-to-face manner and form a first jaw opening at their ends. The first jaws are also formed with a pair of cutouts that face each other. The second jaws extend respectively from the pair of cutouts towards the base plate and form a second jaw opening at their ends. Each second jaw has a hook-shaped configuration composed of a first arc near the second jaw opening and a second arc away from the base plate, wherein the first arc has a greater curvature than the second arc. A junction box and a solar panel which are bonded together can be inserted into and thus clamped by the clamp structure so as to be secured against lateral shifting.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: April 22, 2014
    Assignee: K.S. Terminals Inc.
    Inventor: Chih-Hsin Lin
  • Patent number: 8705313
    Abstract: A double data rate pseudo SRAM (DDR PSRAM) is provided. The DDR PSRAM includes a data receiver, a memory and an address decoder. The data receiver receives a first single data rate data from a controller via a common bus according to a clock. The address decoder decodes the first single data rate data to obtain an address of the memory. The data receiver stores the double data rate data into the address of the memory. The DDR PSRAM also includes a data transmitter and a data strobe generating unit. The data transmitter obtains data stored in the address of the memory and provides a double data rate data to the controller according to the obtained data, and the data strobe generating unit a data strobe signal to the controller and toggling the data strobe signal in response to the double data rate data.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: April 22, 2014
    Assignee: Mediatek Inc.
    Inventors: Chih-Hsin Lin, Tsung-Huang Chen, Bing-Shiun Wang, Jen-Pin Su
  • Publication number: 20140085212
    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: Application
    Filed: September 21, 2012
    Publication date: March 27, 2014
    Inventors: Tzung-Min Su, Chih-Hsin Lin, Han-Ping Cheng, Ming-Tsan Kao
  • Publication number: 20140085264
    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: Application
    Filed: September 21, 2012
    Publication date: March 27, 2014
    Inventors: Tzung-Min Su, Chih-Hsin Lin, Han-Ping Cheng, Ming-Tsan Kao, Yi-Hsien Ko
  • Publication number: 20140065669
    Abstract: A neuroblastoma host cell line for stably expressing human exogenous protein is provided. The cell line is generated by independently integrating control plasmid and switch plasmid into genome of human neuroblastoma SH-SY5Y cells. Upon inserting diseased gene into the above cell line, the cell line thus stably expresses the interested protein by induction, which can be used to study human neurological diseases related to the gene mutation.
    Type: Application
    Filed: April 8, 2013
    Publication date: March 6, 2014
    Applicant: National Taiwan Normal University
    Inventors: Guey-Jen LEE-CHEN, Li-Ching LEE, Chih-Hsin LIN
  • Publication number: 20140055416
    Abstract: An operation method of an optical touch system is provided. The optical touch system includes a touch surface, a light sensing unit, a switch unit and an analog-to-digital conversion unit. The light sensing unit includes a plurality of light sensing elements. The operation method includes: turning on one specific light sensing element group and thereby configuring the light sensing elements thereof to sense the light on the touch surface; and controlling the switch unit to electrically connect the light sensing elements of the turned-on light sensing element group to the input terminals of the analog-to-digital conversion unit, respectively, so as to transmit the sensing signals outputted from the turned-on light sensing element group to the input terminals, and thereby configuring the analog-to-digital conversion unit to generate at least one digital output signal according to the sensing signals supplied to the input terminals thereof. An optical touch system is also provided.
    Type: Application
    Filed: February 21, 2013
    Publication date: February 27, 2014
    Applicant: PIXART IMAGING INC.
    Inventors: Ming-Tsan KAO, Tzung-Min SU, Chih-Hsin LIN
  • Publication number: 20140043925
    Abstract: A double data rate pseudo SRAM (DDR PSRAM) is provided. The DDR PSRAM includes a data receiver, a memory and an address decoder. The data receiver receives a first single data rate data from a controller via a common bus according to a clock. The address decoder decodes the first single data rate data to obtain an address of the memory. The data receiver stores the double data rate data into the address of the memory. The DDR PSRAM also includes a data transmitter and a data strobe generating unit. The data transmitter obtains data stored in the address of the memory and provides a double data rate data to the controller according to the obtained data, and the data strobe generating unit a data strobe signal to the controller and toggling the data strobe signal in response to the double data rate data.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: MediaTek Inc.
    Inventors: Chih-Hsin LIN, Tsung-Huang CHEN, Bing-Shiun WANG, Jen-Pin SU
  • Publication number: 20140043297
    Abstract: An optical touch control method includes steps of: providing a bright background from at least one edge of a touch surface in a first period; providing illumination light to the touch surface in a second period; capturing a first image of an indicator object blocking a portion of the bright background in the first period; and capturing a second image of the indicator object reflecting the illumination light in the second period. An optical touch system is also provided.
    Type: Application
    Filed: April 3, 2013
    Publication date: February 13, 2014
    Applicant: PixArt Imaging Inc.
    Inventors: Tzung-Min SU, Chi-Chieh LIAO, Han-Ping CHENG, Chih-Hsin LIN, Ming-Tsan KAO
  • Patent number: 8649210
    Abstract: A double data rate pseudo SRAM (DDR PSRAM) is provided. The DDR PSRAM includes a data receiver, a memory and an address decoder. The data receiver receives a first single data rate data from a controller via a common bus according to a clock, and receives a double data rate data from the controller via the common bus according to a data strobe signal from the controller. The address decoder decodes the first single data rate data to obtain an address of the memory. The data receiver stores the double data rate data into the address of the memory.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: February 11, 2014
    Assignee: Mediatek Inc.
    Inventors: Chih-Hsin Lin, Tsung-Huang Chen, Bing-Shiun Wang, Jen-Pin Su
  • Publication number: 20140035879
    Abstract: The present invention discloses embodiments for an optical touch systems and methods. One embodiment of the present invention is directed to an optical touch system that includes at least two image sensors configured to detect a plurality of objects over a touch surface to generate a plurality of object images; a plurality of first light receiving elements, wherein the first light receiving elements are arranged on a side of the touch surface along a first direction and are configured to detect the objects; and a processing unit configured to calculate a plurality of candidate coordinate data, based on the object images, and select the coordinate data that represents coordinate data of the objects from the candidate coordinate data, based on detection data of the first light receiving elements.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 6, 2014
    Applicant: PIXART IMAGING INC.
    Inventors: Tzung Min Su, Ming Tsan Kao, Chun-Sheng Lin, Chih Hsin Lin, Yi Hsien Ko