Patents by Inventor Kun Wei

Kun Wei 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: 20080198631
    Abstract: Provided is a flux regulation method for use in a power converter, wherein the method is carried out by a flux bias controller. The flux bias controller includes a current detector which is configured to detect the primary current of the transformer of the power converter in a predetermined switching cycle, a DC bias processor which is configured to obtain the duty ratio control signal according to the sampled primary current outputted from the current detector for a switching cycle later than the predetermined switching cycle, and a PWM controller which is configured to generate driving signals to control the on/off operations of the switching circuit of the power converter according to the duty ratio control signal, thereby suppressing the DC bias of the transformer by regulating the duty ratio of the switch circuit.
    Type: Application
    Filed: August 7, 2007
    Publication date: August 21, 2008
    Applicant: Delta Electronics, Inc.
    Inventors: Jianhong Zeng, Yuanyuan Zhang, Aibin Qiu, Kun Wei, Jianping Ying
  • Publication number: 20080159399
    Abstract: A method for decoding a video block in a video picture includes: selecting N motion vectors from M motion vector, wherein the M motion vectors corresponding to at least a video block of at least a reference area; and decoding the video block according to the N motion vectors.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 3, 2008
    Inventors: Jin-Sheng Gong, Kuo-Hua Yu, Yu-Teng Lin, Hsiao-Jen Weng, Kun-Wei Wang
  • Patent number: 7365922
    Abstract: An optical device. A lens module is movably disposed in a lens housing. A drive mechanism is connected to the lens module, driving the lens module along an optical axis of the lens module. A brake mechanism is disposed between the lens housing and the lens module and moves perpendicular to the optical axis, fixing and releasing the lens module. When the brake mechanism releases the lens module, the lens module moves along the optical axis.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: April 29, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Jin-Yu Lee, Yung-Hsing Wang, Chien-Sheng Liu, Meng-Che Tsai, Kun-Wei Lin, Ying-Chi Chuo
  • Publication number: 20070039015
    Abstract: An optical device. A lens module is movably disposed in a lens housing. A drive mechanism is connected to the lens module, driving the lens module along an optical axis of the lens module. A brake mechanism is disposed between the lens housing and the lens module and moves perpendicular to the optical axis, fixing and releasing the lens module. When the brake mechanism releases the lens module, the lens module moves along the optical axis.
    Type: Application
    Filed: November 8, 2005
    Publication date: February 15, 2007
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jin-Yu Lee, Yung-Hsing Wang, Chien-Sheng Liu, Meng-Che Tsai, Kun-Wei Lin, Ying-Chi Chuo
  • Publication number: 20060221202
    Abstract: An image processing apparatus comprises a characteristic value generator for receiving image data, analyzing neighboring pixels of a to-be-processed pixel and calculating characteristic values comprising average illumination, illumination variability and histogram of illumination of a local image; a weighting generator for generating first and second weightings according to the characteristic values, wherein the first weighting is inversely proportional to the average illumination and directly proportional to the illumination variability, and the second weighting is relative to the histogram of illumination and illumination of the to-be-processed pixel; a first/second modulated illumination generator for generating first/second modulated illumination according to the illumination of the to-be-processed pixel; and a computation unit for generating first and second weighting illumination according to the first and second weightings and the first and second modulated illumination, and synthesizing the first and
    Type: Application
    Filed: February 27, 2006
    Publication date: October 5, 2006
    Inventors: Kun-Wei Lin, Chien-Chia Chien
  • Publication number: 20060221201
    Abstract: A method and an apparatus of image dynamic response re-mapping and a digital camera using the same. The apparatus first transforms an original Bayer image data into new transformed image data on a new image coordinate system, and then performs dynamic response re-mapping for the new transformed image data to calculate a gain modulated value. Finally, the apparatus adjusts the original Bayer image data according to the gain modulated value and outputs adjusted Bayer image data with dynamic response re-mapping. Because the apparatus transforms the original Bayer image data into the new transformed image data on the new image coordinate system in advance, it can reduce the bad effect on performing the dynamic response re-mapping on a high-frequency color signal and also keep the color coherence in color processing.
    Type: Application
    Filed: February 27, 2006
    Publication date: October 5, 2006
    Inventors: Chien-Chia Chien, Kun-Wei Lin, Li-Ming Chen
  • Patent number: 6969900
    Abstract: A semiconductor diode with hydrogen detection capability includes a semiconductor substrate, a doped semiconductor active layer formed on the substrate and made from a compound having the formula XYZ, in which X is a Group III element, Y is another Group III element different from X, and Z is a Group V element, a semiconductor contact-enhancing layer formed on the active layer and made from a compound having the formula MN, in which M is a Group III element, and N is a Group V element, an ohmic contact layer formed on the semiconductor contact-enhancing layer, and a Schottky barrier contact layer formed on the active layer. The Schottky barrier contact layer is made from a metal that is capable of dissociating a hydrogen molecule into hydrogen atoms.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 29, 2005
    Assignee: National Cheng Kung University
    Inventors: Wen-Chau Liu, Huey-Ing Chen, Kun-Wei Lin, Chun-Tsen Lu
  • Publication number: 20050089196
    Abstract: A method for detecting sub-pixel motion for an optical navigation device is disclosed. The method calculates the displacement of the sub-pixel motion according to brightness curve equations of captured images, which is represented by positional coordinates x and y. The detection method includes capturing a first image frame and a second image frame at different times, selecting plural pixels from the first image frame as calculation reference pixels, generating brightness curve equations of the reference pixels, calculating partial-derivatives of the reference pixel to generate a plurality of two-dimensional first-order equations, and calculating the sub-pixel motion according to the plurality of the two-dimensional first-order equations. The method can reduce the pixel noise by choosing reliable pixels as the reference pixels. The method also reduce the noise by classifying the reference pixels.
    Type: Application
    Filed: May 12, 2004
    Publication date: April 28, 2005
    Inventors: Wei-Hsin Gu, Kun-Wei Lin, Chun-Hung Lin
  • Publication number: 20050074186
    Abstract: A directional interpolation method and device for increasing resolution of an image is disclosed. The device includes an input terminal, a memory, a texture analysis module, a texture variance consistence module and an interpolation module. The input terminal receives signals representing the pixels of the image. The memory stores the pixels in row direction. The texture analysis module obtains a monotone variation area by taking the position as a center. The texture variance consistence module computes all directional texture variances in a closest upper and a closest lower rows of pixels within the monotone variation area in the case of taking the position as a center and accordingly finds two pixels having texture variance consistence. The interpolation module finds a value of pixel to be interpolated to the position through a median filter in accordance with the two pixels and their neighbor pixels.
    Type: Application
    Filed: June 21, 2004
    Publication date: April 7, 2005
    Applicant: Sunplus Technology Co., Ltd.
    Inventors: Zhi-Ming Lu, Kun-Wei Lin
  • Patent number: 6876778
    Abstract: An edge enhancement method and an edge enhancement apparatus in digital image scalar-up circuit are provided. A band-pass filtering process is performed to an input image pixel in multiple directions to generate multiple sum-of-border values which are summed up to generate an overall sum-of-border value. A first gain and a second gain are provided according to the overall sum-of-border value. A high-pass filtering process and a low-pass filtering process are performed to the input image pixel to obtain border and plain components which are multiplied by the first gain and second gain, respectively. The gained border component and plain component are summed and added to the original pixel to obtain a new pixel.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: April 5, 2005
    Assignee: Sunplus Technology Co., Ltd.
    Inventors: Kun-Wei Lin, Thomas Chen
  • Patent number: 6847396
    Abstract: An interpolation method for producing full color images is disclosed. For a blue pixel, an interpolated green value is determined by green values of adjacent green pixels, and an interpolated red value is determined by red values of neighboring red pixels and a modification value. For a red pixel, an interpolated green value is determined by green values of adjacent green pixels, and an interpolated blue value is determined by blue values of neighboring blue pixels and a modification value. For a green pixel, an interpolated green value is determined by original green value of the green pixel and green values of neighboring green pixels, an interpolated red value is determined by red value of at least an adjacent red pixel and a modification value, and an interpolated blue value is determined by blue value of at least an adjacent blue pixel and a modification value.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: January 25, 2005
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Kun-Wei Lin
  • Patent number: 6830255
    Abstract: A scooter includes front and rear frame parts coupled together through a pivot unit so as to permit turning of the rear frame part relative the front frame part. The front and rear frame parts are respectively formed with front and rear absorber-mounting members which are respectively disposed frontwardly and rearwardly of the pivot unit. Left and right shock-absorbers have front ends pivoted to the front absorber-mounting member, and rear ends pivoted to the rear absorber-mounting member. Each of the left and right shock-absorbers extends inclinedly and upwardly from the rear absorber-mounting member to the front absorber-mounting member so as to absorb shocks smoothly from vertical and horizontal directions.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: December 14, 2004
    Inventor: Kun-Wei Cheng
  • Patent number: 6826726
    Abstract: In a system comprising a local processing device, a transmission link to a remote processing device, and a remote processing device, a method for updating a remote document in accordance with mutations made to a portion of the remote document maintained on the local processing device comprising the steps of loading at least a portion of the remote document into the local processing device as a local XML document, creating a logical document object model (DOM) having a plurality of nodes arranged in a logical hierarchical structure such that each node corresponds to an XML tag and data element in the XML document, mutating the XML document by adding, deleting, or modifying one or more of its data elements, updating the DOM to conform to the mutations to the XML document, creating a first event table that contains events corresponding to each mutation to the XML document where each entry comprises a path to a node in the DOM affected by the mutation and an event type, processing the first event table to create
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: November 30, 2004
    Assignee: Vaultus Mobile Technologies, Inc.
    Inventors: Jeff Hsing, Kun-Wei Chou, Isaac Kriegman, Arvind Goyal
  • Publication number: 20040183153
    Abstract: A semiconductor diode with hydrogen detection capability includes a semiconductor substrate, a doped semiconductor active layer formed on the substrate and made from a compound having the formula XYZ, in which X is a Group III element, Y is another Group III element different from X, and Z is a Group V element, a semiconductor contact-enhancing layer formed on the active layer and made from a compound having the formula MN, in which M is a Group III element, and N is a Group V element, an ohmic contact layer formed on the semiconductor contact-enhancing layer, and a Schottky barrier contact layer formed on the active layer. The Schottky barrier contact layer is made from a metal that is capable of dissociating a hydrogen molecule into hydrogen atoms.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 23, 2004
    Inventors: Wen-Chau Liu, Huey-Ing Chen, Kun-Wei Lin, Chun-Tsen Lu
  • Publication number: 20040135334
    Abstract: A scooter includes front and rear frame parts coupled together through a pivot unit so as to permit turning of the rear frame part relative the front frame part. The front and rear frame parts are respectively formed with front and rear absorber-mounting members which are respectively disposed frontwardly and rearwardly of the pivot unit. Left and right shock-absorbers have front ends pivoted to the front absorber-mounting member, and rear ends pivoted to the rear absorber-mounting member. Each of the left and right shock-absorbers extends inclinedly and upwardly from the rear absorber-mounting member to the front absorber-mounting member so as to absorb shocks smoothly from vertical and horizontal directions.
    Type: Application
    Filed: January 15, 2003
    Publication date: July 15, 2004
    Inventor: Kun-Wei Cheng
  • Publication number: 20040113216
    Abstract: A semiconductor diode with hydrogen detection capability includes a semiconductor substrate, a doped semiconductor active layer formed on the substrate and made from a compound having the formula XYZ, in which X is a Group III element, Y is another Group III element different from X, and Z is a Group V element, an ohmic contact layer formed on the active layer, and a Schottky barrier contact layer formed on the active layer so as to provide a Schottky barrier therebetween. The Schottky barrier contact layer is made from a metal that is capable of dissociating a hydrogen molecule into hydrogen atoms.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 17, 2004
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Wen-Chau Liu, Huey-Ing Chen, Kun-Wei Lin
  • Publication number: 20030169941
    Abstract: An edge enhancement method and an edge enhancement apparatus in digital image scalar-up circuit are provided. A band-pass filtering process is performed to an input image pixel in multiple directions to generate multiple sum-of-border values which are summed up to generate an overall sum-of-border value. A first gain and a second gain are provided according to the overall sum-of-border value. A high-pass filtering process and a low-pass filtering process are performed to the input image pixel to obtain border and plain components which are multiplied by the first gain and second gain, respectively. The gained border component and plain component are summed and added to the original pixel to obtain a new pixel.
    Type: Application
    Filed: March 11, 2002
    Publication date: September 11, 2003
    Applicant: Sunplus Technology Co., Ltd.
    Inventors: Kun-Wei Lin, Thomas Chen
  • Patent number: 6465815
    Abstract: The invention relates to a high-breakdown voltage heterostructure field-effect transistor (FET), which can be used under a high temperature condition. The FET device from bottom upward in succession includes a semiconductor substrate, a buffer layer, a delta-doped sheet, an undoped layer, a sub-channel layer, an active channel layer, a gate layer, and an ohmic contact layer.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: October 15, 2002
    Assignee: National Science Council
    Inventors: Wen-Chau Liu, Jung-Hui Tsai, Wen-Lung Chang, Kuo-Hui Yu, Kun-Wei Lin
  • Publication number: 20020030202
    Abstract: The invention relates to a high-breakdown voltage heterostructure field-effect transistor (FET), which can be used under a high temperature condition. The FET device from bottom upward in succession includes a semiconductor substrate, a buffer layer, a delta-doped sheet, an undoped layer, a sub-channel layer, an active channel layer, a gate layer, and an ohmic contact layer.
    Type: Application
    Filed: December 29, 2000
    Publication date: March 14, 2002
    Inventors: Wen-Chau Liu, Jung-Hui Tsai, Wen-Lung Chang, Kuo-Hui Yu, Kun-Wei Lin
  • Publication number: 20020023113
    Abstract: In a system comprising a local processing device, a transmission link to a remote processing device, and a remote processing device, a method for updating a remote document in accordance with mutations made to a portion of the remote document maintained on the local processing device comprising the steps of loading at least a portion of the remote document into the local processing device as a local XML document, creating a logical document object model (DOM) having a plurality of nodes arranged in a logical hierarchical structure such that each node corresponds to an XML tag and data element in the XML document, mutating the XML document by adding, deleting, or modifying one or more of its data elements, updating the DOM to conform to the mutations to the XML document, creating a first event table that contains events corresponding to each mutation to the XML document where each entry comprises a path to a node in the DOM affected by the mutation and an event type, processing the first event table to create
    Type: Application
    Filed: August 17, 2001
    Publication date: February 21, 2002
    Inventors: Jeff Hsing, Kun-Wei Chou, Isaac Kriegman, Arvind Goyal