Patents by Inventor Chun-Ho Chen

Chun-Ho Chen 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: 8740755
    Abstract: An elliptical exercise apparatus includes a base frame with two supporting frames, two swing sleeves each pivotally connected with one supporting frame, two sliding arms each having a top portion slidably inserted through one swing sleeve and a bottom portion extending transversely inwardly and coupled with a treadle, two swing arms each having an end pivotally coupled with the base frame, and two sliding sleeves each axially slidably sleeved onto one swing arm and pivotally connected with the bottom portion of one sliding arm through a pivot. A rotational shaft is transversely and rotationally coupled with the base frame. Two links each have an end vertically coupled with one of two ends of the rotational shaft, and an opposite end pivotally connected with a lower portion of one of the sliding sleeves.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: June 3, 2014
    Assignee: Cycling & Health Tech Industry R & D Center
    Inventors: Chun-Ho Chen, Chia-Hsun Chuang
  • Publication number: 20140139756
    Abstract: A display module includes a display device, a pivot member, and a reflection-mirror device. The display device includes a light splitting device and a monitor for displaying first and second images arranged alternately. The light splitting device is disposed at a position corresponding to a light exit side of the monitor for splitting the first and second images along first and second splitting directions respectively. The pivot member is disposed at a side of the display device. The reflection-mirror device is connected to the pivot member to be foldably pivoted to the side of the display device. The reflection-mirror device is for reflecting the first images split along the first splitting direction in a reflection direction when being unfolded relative to the display device. The reflection direction is relatively biased toward the monitor so as to form an included angle cooperatively with a normal of the monitor.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 22, 2014
    Applicant: WINTEK CORPORATION
    Inventors: Chun-Ho Chen, Chung-Lun Li, Kun-Chang Ho, Wen-Chun Wang, Ching-Fu Hsu, Chong-Yang Fang
  • Publication number: 20140125878
    Abstract: A display device for a user to observe a stereo image through a pair of polarization glasses includes a projector, a switchable polarizer, and a sensor. The projector sequentially displays a first image, a first middle image, a second image, and a second middle image on a projection screen. The switchable polarizer is located between the projector and the projection screen and is switchable between a first mode and a second mode, so that each of the first and second images has a first or second polarization after passing through the switchable polarizer in the first or second mode and is then projected onto the projection screen. The sensor is coupled to the switchable polarizer and senses the images on the projection screen. When the sensor senses the first middle image or the second middle image, the switchable polarizer switches between the first mode and the second mode.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 8, 2014
    Applicant: WINTEK CORPORATION
    Inventors: Yan-Yu Su, Chong-Yang Fang, Chun-Ho Chen, Wen-Chun Wang, Tsung-Hsien Lin
  • Publication number: 20130316878
    Abstract: A free walking training machine includes a chassis having a left supporting frame and a right supporting frame, a left swing arm having a left axial portion extending sidewards, a right swing arm having a right axial portion extending sidewards, a left lifting mechanism, a right lifting mechanism, a first linking unit, and a second linking unit. The left lifting mechanism makes the left swing arm move upward and downward relative to the left supporting frame. The right lifting mechanism makes the right swing arm move upward and downward relative to the right supporting frame. The first and second linking mechanisms are connected between the left and right swing arms for enabling the left and right axial portions and the left and right swing arms to make linking movement and move toward contrary directions, respectively. The first and second linking mechanisms are operable independently.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 28, 2013
    Inventors: Chun-Ho CHEN, Chia-Hsun CHUANG
  • Publication number: 20130265510
    Abstract: A three-dimensional display device and an active optical element thereof are provided. The three-dimensional display device includes a display panel, a polarizing element, and an active optical element between the display panel and the polarizing element. The active optical element includes a first substrate, a second substrate, a first electrode structure layer disposed on the first substrate, a second electrode structure layer disposed on the second substrate and a liquid crystal layer. The first electrode structure layer includes a plurality of first electrodes, a plurality of second electrodes alternately arranged with the first electrodes, and a first insulating layer located between the first electrodes and the second electrodes. The first electrodes and the second electrodes are extended along a first direction, and a first gap is formed between two adjacent second electrodes. An area of each first electrode fills one corresponding first gap.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 10, 2013
    Applicants: WINTEK CORPORATION, DONGGUAN MASSTOP LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Chong-Yang Fang, Yu-Hung Chang, Ching-Fu Hsu, Chun-Ho Chen, Wen-Tui Liao
  • Publication number: 20130249413
    Abstract: A pixel circuit includes a control switch module, a capacitor, a driving switch, and a light emitting element. The control switch module is enabled and disabled according to a scan signal. A first end of the capacitor can be electrically connected to the control switch module, and a second end of the capacitor can be electrically connected to a voltage level. The capacitor receives and stores a predetermined driving voltage when the control switch module is enabled. Area of the capacitor occupies more than 20% area of the pixel circuit. The driving switch can be electrically connected to the capacitor and a voltage source for controlling a driving current flowing through the driving switch according to the predetermined driving voltage stored in the capacitor. The light emitting element emits light according to the driving current flowing through the driving switch.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 26, 2013
    Applicants: WINTEK CORPORATION, Wintek (China) Technology Ltd.
    Inventors: Chun-Ho Chen, Ching-Fu Hsu, Yu-Hung Chang, Kuang-Wei Li, Wen-Tui Liao
  • Patent number: 8451199
    Abstract: A color adjustment method for a color sequential liquid crystal display (LCD) having at least one white light source is provided. In the color adjustment method, firstly, an original image signal is converted into a target color point located in a chromaticity diagram in a color space. Then, a modified image signal having white data is calculated according to the original image signal. Afterwards, the modified image signal is converted into a main color point located in the chromaticity diagram by using a matrix group. Then, a plurality of subfield data are calculated according to the main color point and the target color point. The subfield data are used for enabling the main color point to fall on the target color point.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: May 28, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Yi-Pai Huang, Han-Ping Shieh, Yi-Ling Chen, Fang-Cheng Lin, Chun-Ho Chen, Wen-Chih Tai, Shian-Jun Chiou
  • Publication number: 20130075961
    Abstract: Disclosed is an efficient and inexpensive method for making an effective shock-absorptive material from a micro- or nano-colloidal solution. The method includes the steps of providing a liquid mixture via mixing silicon dioxide grains, poly ethylene glycol and an additive evenly, providing a colloidal solution-based raw material via heating the liquid mixture to evaporating and removing the additive, providing a colloidal solution-based mixture via adding a cross-linking agent into the colloidal solution-based raw material, and molding the colloidal solution-based mixture into a shock-absorptive plastic material via filling the colloidal solution-based mixture in a mold and casting ultraviolet light onto the mold or heating the mold to heat and cure the colloidal solution-based mixture.
    Type: Application
    Filed: September 24, 2011
    Publication date: March 28, 2013
    Applicant: Chung-Shan Institute of Science and Technology, Amaments, Bureau, Ministry of National Defense
    Inventors: Chun-Ho Chen, Chun-Wei Chiu, Tsai-Chi Yeh
  • Patent number: 8368627
    Abstract: An adaptive feedback control method of a field sequential color display includes: a rearrangement step of converting gray-scale values of a three primary color field of an input image into gray-scale values of a new three primary color field and a dominated color field; a sampling step of performing a pixel sampling on a resolution of the input image in a sampling interval; a feedback control step of performing a pixel by pixel sum operation for each separated color on a color break-up value and a color value of the input image in a Lu?v? color space to obtain a color difference sum, and performing a feedback control at a bit precision on the color difference sum; and a liquid crystal/backlight synchronization step of synchronizing a liquid crystal signal and a backlight grayscale value of the input image according to the minimum color difference sum.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 5, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chun-Ho Chen, Yi-Pai Huang, Ke-Horng Chen, Fang-Cheng Lin, Han-Ping Shieh, Chi-Chung Tsai
  • Patent number: 8368728
    Abstract: An adaptive feedback control method of a field sequential color display includes converting gray-scale values of a three primary color field of an input image into gray-scale values of a new three primary color field and a dominated color field (D-field); performing sampling; performing a pixel by pixel sum operation for each separated color through color gamut conversion to obtain a color difference sum; performing a feedback control at a bit precision to obtain a minimum color difference sum; and then performing a liquid crystal/backlight synchronization step of synchronizing a liquid crystal signal and a backlight gray-scale value of the input image; or dividing the input image into a plurality of blocks; performing feedback control operations; obtaining a minimum sum in each block to serve as an optical backlight value, thereby reducing a CBU phenomenon, and minimizing or controlling the generated CBUs to reduce the operation loads.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: February 5, 2013
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chun-Ho Chen, Shih-Hsun Chien, Fang-Cheng Lin, Yi-Pai Huang, Han-Ping Shieh, Wen-Chih Tai, Shian-Jun Chiou
  • Publication number: 20120277064
    Abstract: An elliptical exercise apparatus includes a base frame with two supporting frames, two swing sleeves each pivotally connected with one supporting frame, two sliding arms each having a top portion slidably inserted through one swing sleeve and a bottom portion extending transversely inwardly and coupled with a treadle, two swing arms each having an end pivotally coupled with the base frame, and two sliding sleeves each axially slidably sleeved onto one swing arm and pivotally connected with the bottom portion of one sliding arm through a pivot. A rotational shaft is transversely and rotationally coupled with the base frame. Two links each have an end vertically coupled with one of two ends of the rotational shaft, and an opposite end pivotally connected with a lower portion of one of the sliding sleeves.
    Type: Application
    Filed: December 27, 2011
    Publication date: November 1, 2012
    Inventors: Chun-Ho Chen, Chia-Hsun Chuang
  • Patent number: 8289351
    Abstract: A method for driving a display includes following steps. A display panel is divided into a plurality of bright regions and a plurality of dark regions, wherein the dark regions and the bright regions are alternately arranged so that the bright regions within the display panel are not adjacent to each other. Next, a full-color frame is divided into four sub-frames, wherein the sub-frames are matched with the four color-orders one by one. In this way, the display randomly displays the sub-frames in a frame period.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: October 16, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Ke-Horng Chen, Chun-Ho Chen, Shian-Jun Chiou, Han-Ping Shieh, Ti-Ti Liu
  • Patent number: 8246233
    Abstract: Display devices are used in portable computer systems, imaging systems, and other electronic devices. Many of these display devices require a source of light to illuminate a display screen. The invention relates to an illumination system for illuminating said display devices. The invention also relates to a display device provided with such an illumination system.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: August 21, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Hugo Johan Cornelissen, Fetze Pijlman, Chun-ho Chen
  • Publication number: 20120105506
    Abstract: A method for driving a display is provided. According to the driving method, a display panel is divided into a plurality of bright regions and a plurality of dark regions, wherein the dark regions and the bright regions are alternately arranged so that the bright regions within the display panel are not adjacent to each other. Next, a full-color frame is divided into four sub-frames, wherein the sub-frames are matched with the four color-orders one by one. In this way, the display randomly displays the sub-frames in a frame period.
    Type: Application
    Filed: January 11, 2012
    Publication date: May 3, 2012
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Ke-Horng Chen, Chun-Ho Chen, Shian-Jun Chiou, Han-Ping Shieh, Ti-Ti Liu
  • Patent number: 8120628
    Abstract: A method for driving a display is provided. According to the driving method, a display panel is divided into a plurality of bright regions and a plurality of dark regions, wherein the dark regions and the bright regions are alternately arranged so that the bright regions within the display panel are not adjacent to each other. Next, a full-color frame is divided into four sub-frames, wherein the sub-frames are matched with the four color-orders one by one. In this way, the display randomly displays the sub-frames in a frame period.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: February 21, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Ke-Horng Chen, Chun-Ho Chen, Shian-Jun Chiou, Han-Ping Shieh, Ti-Ti Liu
  • Publication number: 20110221361
    Abstract: Display devices are used in portable computer systems, imaging systems, and other electronic devices. Many of these display devices require a source of light to illuminate a display screen. The invention relates to an illumination system for illuminating said display devices. The invention also relates to a display device provided with such an illumination system.
    Type: Application
    Filed: August 4, 2008
    Publication date: September 15, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Hugo Johan Cornelissen, Fetze Pijlman, Chun-ho Chen
  • Publication number: 20110187632
    Abstract: A color adjustment method for a color sequential liquid crystal display (LCD) having at least one white light source is provided. In the color adjustment method, firstly, an original image signal is converted into a target color point located in a chromaticity diagram in a color space. Then, a modified image signal having white data is calculated according to the original image signal. Afterwards, the modified image signal is converted into a main color point located in the chromaticity diagram by using a matrix group. Then, a plurality of subfield data are calculated according to the main color point and the target color point. The subfield data are used for enabling the main color point to fall on the target color point.
    Type: Application
    Filed: June 2, 2010
    Publication date: August 4, 2011
    Inventors: Yi-Pai Huang, Han-Ping Shieh, Yi-Ling Chen, Fang-Cheng Lin, Chun-Ho Chen, Wen-Chih Tai, Shian-Jun Chiou
  • Patent number: 7981006
    Abstract: A track-adjusting method and a track-adjusting mechanism are applicable to an elliptical exercise apparatus using a linkage system to generate a cyclic exercise track. The track-adjusting method and the track-adjusting mechanism provide the elliptical exercise apparatus with additional exercise tracks by displacing at least one set of horizontally symmetrical pivotal joints in the linkage system, so as to allow diverse training programs and improved exercise effects.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: July 19, 2011
    Assignee: Cycling & Health Tech Industry R & D Center
    Inventors: Chun-Ho Chen, Chia-Hsiun Chuang
  • Publication number: 20100214327
    Abstract: An adaptive feedback control method of a field sequential color display includes converting gray-scale values of a three primary color field of an input image into gray-scale values of a new three primary color field and a dominated color field (D-field); performing sampling; performing a pixel by pixel sum operation for each separated color through color gamut conversion to obtain a color difference sum; performing a feedback control at a bit precision to obtain a minimum color difference sum; and then performing a liquid crystal/backlight synchronization step of synchronizing a liquid crystal signal and a backlight gray-scale value of the input image; or dividing the input image into a plurality of blocks; performing feedback control operations; obtaining a minimum sum in each block to serve as an optical backlight value, thereby reducing a CBU phenomenon, and minimizing or controlling the generated CBUs to reduce the operation loads.
    Type: Application
    Filed: February 2, 2010
    Publication date: August 26, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Chun-Ho Chen, Shih-Hsun Chien, Fang-Cheng Lin, Yi-Pai Huang, Han-Ping Shieh, Wen-Chih Tai, Shian-Jun Chiou
  • Publication number: 20100214201
    Abstract: An adaptive feedback control method of a field sequential color display includes: a rearrangement step of converting gray-scale values of a three primary color field of an input image into gray-scale values of a new three primary color field and a dominated color field; a sampling step of performing a pixel sampling on a resolution of the input image in a sampling interval; a feedback control step of performing a pixel by pixel sum operation for each separated color on a color break-up value and a color value of the input image in a Lu?v? color space to obtain a color difference sum, and performing a feedback control at a bit precision on the color difference sum; and a liquid crystal/backlight synchronization step of synchronizing a liquid crystal signal and a backlight grayscale value of the input image according to the minimum color difference sum.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 26, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: CHUN-HO CHEN, YI-PAI HUANG, KE-HORNG CHEN, FANG-CHENG LIN, HAN-PING SHIEH, CHI-CHUNG TSAI