Patents by Inventor Hang Chang

Hang Chang 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: 20150235602
    Abstract: An image display method of a half-source-driving (HSD) liquid crystal display (LCD) for mitigating the screen flickering effect caused by applying a frame rate control (FRC) algorithm in the LCD includes providing a first gate sequence corresponding to a pixel array in the LCD display. If a target gray level of the pixel array is an average value of a first gray level and a second gray level, write the first gray level to a plurality of sub-pixels of the pixel array being charged first according to the first gate sequence, and write the second gray level smaller than the first gray level to a plurality of sub-pixels of the pixel array being charged latter according to the first gate sequence.
    Type: Application
    Filed: September 11, 2014
    Publication date: August 20, 2015
    Inventors: Hang-Chang Tseng, Nan-Ying Lin, Chung-Lung Li, Fu-Yuan Liou, Chung-Lin Fu
  • Publication number: 20150153426
    Abstract: The present invention discloses a magnetic field sensing device and method. The magnetic field sensing device includes a pinned layer with a first magnetization direction, an analyzer with a second magnetization direction, wherein the first and the second magnetization directions form an angle, and a sensing layer of magnetic material, located between the analyzer and the pinned layer. The magnetic field sensing method includes: providing a pinned layer with a first magnetization direction, providing an analyzer with a second magnetization direction, wherein the first and the second magnetization directions form an angle, and providing a sensing layer of magnetic material, located between the analyzer and the pinned layer.
    Type: Application
    Filed: November 29, 2014
    Publication date: June 4, 2015
    Inventors: Jui-Hang Chang, Ching-Ray Chang
  • Patent number: 9031306
    Abstract: Determining at least one of a prognosis or a therapy for a patient based on a stained tissue section of the patient. An image of a stained tissue section of a patient is processed by a processing device. A set of features values for a set of cell-based features is extracted from the processed image, and the processed image is associated with a particular cluster of a plurality of clusters based on the set of feature values, where the plurality of clusters is defined with respect to a feature space corresponding to the set of features.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: May 12, 2015
    Assignee: The Regents of the University of California
    Inventors: Bahram Parvin, Hang Chang, Ju Han, Gerald V. Fontenay
  • Publication number: 20150110381
    Abstract: Embodiments disclosed herein provide methods and systems for delineating cell nuclei and classifying regions of histopathology or microanatomy while remaining invariant to batch effects. These systems and methods can include providing a plurality of reference images of histology sections. A first set of basis functions can then be determined from the reference images. Then, the histopathology or microanatomy of the histology sections can be classified by reference to the first set of basis functions, or reference to human engineered features. A second set of basis functions can then be calculated for delineating cell nuclei from the reference images and delineating the nuclear regions of the histology sections based on the second set of basis functions.
    Type: Application
    Filed: September 22, 2014
    Publication date: April 23, 2015
    Inventors: Bahram Parvin, Hang Chang, Yin Zhou
  • Publication number: 20130294676
    Abstract: Determining at least one of a prognosis or a therapy for a patient based on a stained tissue section of the patient. An image of a stained tissue section of a patient is processed by a processing device. A set of features values for a set of cell-based features is extracted from the processed image, and the processed image is associated with a particular cluster of a plurality of clusters based on the set of feature values, where the plurality of clusters is defined with respect to a feature space corresponding to the set of features.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 7, 2013
    Applicant: The Regents of the University of California
    Inventors: Bahram Parvin, Hang Chang, Ju Han, Gerald V. Fontenay
  • Patent number: 8545947
    Abstract: A transparent substrate with optical compensation ability comprises polyimide having the following chemical formula: wherein A and A? are cyclic aliphatic or aromatic compounds, B and B? are cyclic aliphatic or aromatic compounds. In particular, the refractive index of the transparent polyimide is nx=ny>nz, that is, it has ability of adjusting the negative type c-plate phase difference, wherein nx represents the lateral refractive index, ny represents the longitudinal refractive index, nz represents the vertical refractive index along the thickness direction, and m and n are between 10 and 10,000.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: October 1, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Horng Long Tyan, Chyi Ming Leu, Hang Chang Chang
  • Patent number: 8404319
    Abstract: The invention relates to a transparent substrate with low birefringence. The transparent substrate comprises polyimide having a repeat unit of formula (I) and has a birefringence below 0.005: wherein each A of the repeat unit, being the same or different, represents an aromatic or aliphatic group, and at least one A is an aromatic or aliphatic group containing sulfonyl functionality; each B of the repeated unit, being the same or different, represents an aromatic or cycloaliphatic group; and n is an integer greater than one.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: March 26, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Chen-Lung Lin, Chyi-Ming Leu, Hang-Chang Chang
  • Publication number: 20120178592
    Abstract: A bicycle which is made up of a frame, a front and rear wheel, an electric DC motor, a multiple mode selection switch, a torque selection switch, and a rear wheel stand which can either raise the wheel off of a surface or allow the wheel to touch the surface, is described. The multi-purpose bicycle can be used in standard mode, electric mode, stationary gym mode, or mobile gym mode.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 12, 2012
    Inventors: Hang Chang Chieh, Baladhandayuthapan Pachyappa
  • Publication number: 20100225190
    Abstract: A generator includes a body and at least one drive unit. The body includes at lease one winding portion and one magnetic pole portion. The winding portion is formed that is wrapped with windings, while the magnetic pole portion is rounded with a magnetic pole around the circumference of winding portion. Both the winding portion and the magnetic pole portion may run freely. The drive unit drives the winding portion and the magnetic pole portion, making the winding portion and the magnetic pole portion run reversely. Thus, the drive unit may drive the winding portion and the magnetic pole portion run oppositely for heightening the frequency of magnetic pole cutting to increase flux, and then increasing the efficiency of generator.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 9, 2010
    Inventor: Hang-Chang HUANG
  • Patent number: 7662449
    Abstract: A liquid crystal display. The liquid crystal display includes a color filter substrate and an array substrate, wherein at least one of the color filter substrate and the array substrate comprises polyimide having formula (I): wherein A and A? are the same or different and comprise cycloaliphatic compounds or aromatic compounds, B and B? are the same or different and comprise cycloaliphatic compounds or aromatic compounds, and x and y are 10˜10000, wherein at least one of A and A? is a cycloaliphatic compound.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: February 16, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Horng-Long Tyan, Chyi-Ming Leu, Hang-Chang Chang, Tzong-Ming Lee
  • Publication number: 20080286498
    Abstract: The invention relates to a transparent substrate with low birefringence. The transparent substrate comprises polyimide having a repeat unit of formula (I) and has a birefringence below 0.005: , wherein each A of the repeat unit, being the same or different, represents an aromatic or aliphatic group, and at least one A is an aromatic or aliphatic group containing sulfonyl functionality; each B of the repeated unit, being the same or different, represents an aromatic or cycloaliphatic group; and n is an integer greater than one.
    Type: Application
    Filed: November 15, 2007
    Publication date: November 20, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chen-Lung Lin, Chyi-Ming Leu, Hang-Chang Chang
  • Publication number: 20080231577
    Abstract: A displaying method for trans-flective type display device is provided. The pixel array of the display device has a selected pixel unit formed by three sub-pixels selected from three basic-color sub-pixels and one enhancement sub-pixel, wherein there is a reflective area within the enhancement sub-pixel. The displaying method includes the following steps. Firstly, an original image having an image data is provided to the display device. Next, when the backlight is turned off, the resolution of the original image is scaled down for obtaining an adjusted image data. Then, another pixel unit consisting of the three basic-color sub-pixels and the enhancement sub-pixel is re-selected, and the driving value of the enhancement sub-pixel is calculated according to the adjusted image data for driving the enhancement sub-pixel.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 25, 2008
    Applicant: Wintek Corporation
    Inventors: Lin Lin, Bau-Jy Liang, Hang-Chang Lin, Chien-Yu Fan
  • Publication number: 20080161473
    Abstract: A hybrid composition and films fabricated by the same are provided. The film fabricated by the hybrid composition exhibits high transparency, high thermal-resistance, and low coefficient of thermal expansion. The hybrid composition of the invention comprises silicon oxide and polyimide uniformly mixed, wherein the weight ratio between silicon oxide and polyimide is 1:9 to 9:1.
    Type: Application
    Filed: June 22, 2007
    Publication date: July 3, 2008
    Inventors: Chyi-ming Leu, Hang-chang Chang
  • Publication number: 20080113120
    Abstract: A transparent substrate with optical compensation ability comprises polyimide having the following chemical formula: wherein A and A? are cyclic aliphatic or aromatic compounds, B and B? are cyclic aliphatic or aromatic compounds. In particular, the refractive index of the transparent polyimide is nx=ny>nz, that is, it has ability of adjusting the negative type c-plate phase difference, wherein nx represents the lateral refractive index, ny represents the longitudinal refractive index, nz represents the vertical refractive index along the thickness direction, and m and n are between 10 and 10,000.
    Type: Application
    Filed: February 13, 2007
    Publication date: May 15, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Horng Long Tyan, Chyi Ming Leu, Hang Chang Chang
  • Publication number: 20070116899
    Abstract: A liquid crystal display. The liquid crystal display includes a color filter substrate and an array substrate, wherein at least one of the color filter substrate and the array substrate comprises polyimide having formula (I): wherein A and A? are the same or different and comprise cycloaliphatic compounds or aromatic compounds, B and B? are the same or different and comprise cycloaliphatic compounds or aromatic compounds, and x and y are 10˜10000, wherein at least one of A and A? is a cycloaliphatic compound.
    Type: Application
    Filed: March 31, 2006
    Publication date: May 24, 2007
    Inventors: Horng-Long Tyan, Chyi-Ming Leu, Hang-Chang Chang, Tzong-Ming Lee
  • Publication number: 20070109765
    Abstract: A bottom lighting type backlight module includes a frame, a plurality of light sources, a reflecting sheet and one optical sheet. The frame includes a base and a plurality of sidewalls extending from the peripheral of the base to define an opening. The base defines a plurality of guide holes therein. The optical sheet is disposed on the opening of the frame. The optical sheet and the frame collectively define a chamber. The reflecting sheet is supported by the sidewalls, for partitioning the chamber into an illumination space and a heat dissipation space. The reflecting sheet defines a plurality of through holes therein. The light sources are arranged on the base of the frame under the reflecting sheet according to the through holes, illuminating light through the through holes towards the optical sheet. The present backlight module has a thin body with good heat dissipation capability.
    Type: Application
    Filed: August 10, 2006
    Publication date: May 17, 2007
    Applicant: HON HAI Precision Industry CO., LTD.
    Inventors: Shao-Hang Chang, Fen Chen
  • Patent number: 6855211
    Abstract: Disclosed is a composition of about 20 to about 80 wt % benzotrifluoride and about 20 to about 80 wt % trichloroethylene. Up to about 1 wt % of a stabilizer for the trichloroethylene can be included in the composition.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: February 15, 2005
    Assignee: Emerald Agrochemicals Company AVV
    Inventors: Hang-Chang Bobby Chen, Edward A. Rowe
  • Publication number: 20020129840
    Abstract: Disclosed is a composition of about 20 to about 80 wt % benzotrifluoride and about 20 to about 80 wt % trichloroethylene. Up to about 1 wt % of a stabilizer for the trichloroethylene can be included in the composition.
    Type: Application
    Filed: February 13, 2002
    Publication date: September 19, 2002
    Applicant: EMERALD AGROCHEMICALS COMPANY AVV
    Inventors: Hang-Chang Bobby Chen, Edward A. Rowe
  • Publication number: 20020107268
    Abstract: Disclosed is a composition of about 20 to about 80 wt % benzotrifluoride and about −20 to about 80 wt % trichloroethylene. Up to about 1 wt % of a stabilizer for the trichloroethylene can be included in the composition.
    Type: Application
    Filed: February 19, 2002
    Publication date: August 8, 2002
    Applicant: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: Hang-Chang Bobby Chen, Edward A. Rowe
  • Patent number: 6429176
    Abstract: Disclosed is a composition of about 20 to about 80 wt % benzotrifluoride and about 20 to about 80 wt % trichloroethylene. Up to about 1 wt % of a stabilizer for the trichloroethylene can be included in the composition.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: August 6, 2002
    Assignee: Emerald Agrochemicals Company AVV
    Inventors: Hang-Chang Bobby Chen, Edward A. Rowe