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).
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Patent number: 8740755Abstract: 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: GrantFiled: December 27, 2011Date of Patent: June 3, 2014Assignee: Cycling & Health Tech Industry R & D CenterInventors: Chun-Ho Chen, Chia-Hsun Chuang
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Publication number: 20140139756Abstract: 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: ApplicationFiled: November 6, 2013Publication date: May 22, 2014Applicant: WINTEK CORPORATIONInventors: Chun-Ho Chen, Chung-Lun Li, Kun-Chang Ho, Wen-Chun Wang, Ching-Fu Hsu, Chong-Yang Fang
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Publication number: 20140125878Abstract: 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: ApplicationFiled: November 1, 2013Publication date: May 8, 2014Applicant: WINTEK CORPORATIONInventors: Yan-Yu Su, Chong-Yang Fang, Chun-Ho Chen, Wen-Chun Wang, Tsung-Hsien Lin
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Publication number: 20130316878Abstract: 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: ApplicationFiled: September 14, 2012Publication date: November 28, 2013Inventors: Chun-Ho CHEN, Chia-Hsun CHUANG
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Publication number: 20130265510Abstract: 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: ApplicationFiled: April 8, 2013Publication date: October 10, 2013Applicants: 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
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Publication number: 20130249413Abstract: 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: ApplicationFiled: March 14, 2013Publication date: September 26, 2013Applicants: WINTEK CORPORATION, Wintek (China) Technology Ltd.Inventors: Chun-Ho Chen, Ching-Fu Hsu, Yu-Hung Chang, Kuang-Wei Li, Wen-Tui Liao
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Patent number: 8451199Abstract: 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: GrantFiled: June 2, 2010Date of Patent: May 28, 2013Assignee: 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
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Publication number: 20130075961Abstract: 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: ApplicationFiled: September 24, 2011Publication date: March 28, 2013Applicant: Chung-Shan Institute of Science and Technology, Amaments, Bureau, Ministry of National DefenseInventors: Chun-Ho Chen, Chun-Wei Chiu, Tsai-Chi Yeh
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Patent number: 8368627Abstract: 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: GrantFiled: February 24, 2009Date of Patent: February 5, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Chun-Ho Chen, Yi-Pai Huang, Ke-Horng Chen, Fang-Cheng Lin, Han-Ping Shieh, Chi-Chung Tsai
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Patent number: 8368728Abstract: 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: GrantFiled: February 2, 2010Date of Patent: February 5, 2013Assignee: 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
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Publication number: 20120277064Abstract: 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: ApplicationFiled: December 27, 2011Publication date: November 1, 2012Inventors: Chun-Ho Chen, Chia-Hsun Chuang
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Patent number: 8289351Abstract: 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: GrantFiled: January 11, 2012Date of Patent: October 16, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Ke-Horng Chen, Chun-Ho Chen, Shian-Jun Chiou, Han-Ping Shieh, Ti-Ti Liu
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Patent number: 8246233Abstract: 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: GrantFiled: August 4, 2008Date of Patent: August 21, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Hugo Johan Cornelissen, Fetze Pijlman, Chun-ho Chen
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Publication number: 20120105506Abstract: 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: ApplicationFiled: January 11, 2012Publication date: May 3, 2012Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Ke-Horng Chen, Chun-Ho Chen, Shian-Jun Chiou, Han-Ping Shieh, Ti-Ti Liu
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Patent number: 8120628Abstract: 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: GrantFiled: March 19, 2008Date of Patent: February 21, 2012Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Ke-Horng Chen, Chun-Ho Chen, Shian-Jun Chiou, Han-Ping Shieh, Ti-Ti Liu
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Publication number: 20110221361Abstract: 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: ApplicationFiled: August 4, 2008Publication date: September 15, 2011Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Hugo Johan Cornelissen, Fetze Pijlman, Chun-ho Chen
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Publication number: 20110187632Abstract: 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: ApplicationFiled: June 2, 2010Publication date: August 4, 2011Inventors: Yi-Pai Huang, Han-Ping Shieh, Yi-Ling Chen, Fang-Cheng Lin, Chun-Ho Chen, Wen-Chih Tai, Shian-Jun Chiou
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Patent number: 7981006Abstract: 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: GrantFiled: December 2, 2010Date of Patent: July 19, 2011Assignee: Cycling & Health Tech Industry R & D CenterInventors: Chun-Ho Chen, Chia-Hsiun Chuang
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Publication number: 20100214327Abstract: 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: ApplicationFiled: February 2, 2010Publication date: August 26, 2010Applicant: 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
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Publication number: 20100214201Abstract: 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: ApplicationFiled: February 24, 2009Publication date: August 26, 2010Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: CHUN-HO CHEN, YI-PAI HUANG, KE-HORNG CHEN, FANG-CHENG LIN, HAN-PING SHIEH, CHI-CHUNG TSAI