Patents by Inventor Ping KAI

Ping KAI 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: 10085333
    Abstract: A light emitting diode (LED) failure detecting device is operatively associated with an LED array, and includes a driving circuit and a determining circuit. The driving circuit drives LED units of the LED array through scan lines and data lines of the LED array in such a way that a current flows through one of the LED units. The determining circuit selects a voltage at the data line that is coupled to said one of the LED units, and generates, based on a difference between a first sample voltage that is related to at least the selected voltage at a first time point and a second sample voltage that is related to at least the selected voltage at a second time point, a determination output indicating whether said one of the LED units is determined to have failed.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: September 25, 2018
    Assignee: Macroblock, Inc.
    Inventors: Ping-Kai Huang, Chung-Ta Tsai
  • Publication number: 20160005415
    Abstract: An audio signal processing apparatus and an audio signal processing method thereof are provided. The audio signal processing apparatus is configured to receive an audio signal and divide the audio signal into a plurality of frames. The audio signal processing apparatus is also configured to apply Fourier Transform on each of the frames to obtain a plurality of acoustic spectra. The audio signal processing apparatus is also configured to apply Fourier Transform again on each of component combinations corresponding to respective acoustic frequencies in these acoustic spectra to obtain a two-dimensional joint frequency spectrum. The two-dimensional joint frequency spectrum has an acoustic frequency dimension and a modulation frequency dimension. The audio signal processing apparatus is also configured to calculate at least one feature of the audio signal according to the two-dimensional joint frequency spectrum.
    Type: Application
    Filed: January 19, 2015
    Publication date: January 7, 2016
    Inventors: Ping Kai HUANG, Jian Zhang CHEN, Che Yi LIN, Bo Yu CHU
  • Publication number: 20150161089
    Abstract: A page restoring method includes when starting, detecting whether a predetermined file is empty. The predetermined file is configured to store a Uniform/Universal Resource Locator (URL) accessed before a browser exits abnormally. When detecting that the predetermined file is not empty, take a page corresponding to the URL in the predetermined file as a displaying page.
    Type: Application
    Filed: February 17, 2015
    Publication date: June 11, 2015
    Inventors: Daxin ZHOU, Ping KAI
  • Publication number: 20140099755
    Abstract: A fabrication method of a stacked package structure is provided, which includes the steps of: providing a substrate having at least a semiconductor device disposed thereon; and disposing a semiconductor package on the substrate through a plurality of conductive elements such that the semiconductor device is located between the substrate and the semiconductor package, and forming an encapsulant between the substrate and the semiconductor package to encapsulate the semiconductor device. The encapsulant can be formed on the semiconductor package first and then laminated on the substrate to encapsulate the semiconductor device, or alternatively the encapsulant can be filled between the substrate and the semiconductor package driven by a capillary force after the semiconductor package is disposed on the substrate. Therefore, the present invention alleviates pressure and temperature effects on the package to prevent warpage of the substrate and facilitate fabrication of multi-layer stacked package structures.
    Type: Application
    Filed: December 28, 2012
    Publication date: April 10, 2014
    Applicant: Siliconware Precision Industries Co., Ltd.
    Inventors: Ping Kai Cheng, Wen-Shan Tsai
  • Patent number: 7816502
    Abstract: Provided are a method for preparing an array for authenticating biological samples and a method for authenticating the biological samples based on analysis of variable sequences of ribosomal RNA genes as well as a kit for authentication of the biological samples. The hybridization of probes of the samples to the array of overlapping fragments of authentic variable ribosomal RNA gene regions is quantified. The test enables distinction of species or prokaryotic strains and is unaffected by intra-species or strain polymorphism. The method disclosed is illustrated by authentication of traditional Chinese medicinal materials.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: October 19, 2010
    Assignee: The Chinese University of Hong Kong
    Inventors: Hoi Shan Kwan, Chun Yin Mak, Oi Wah Lau, Ping Kay Hon, legal representative
  • Patent number: 7362672
    Abstract: An apparatus is provided for disc rotation control in an optical storage system, which is capable of generating a focusing error signal from light that was reflected by a loaded optical disc. The apparatus includes a focus controller for processing the focusing error signal to obtain a focus output signal, a low pass filter unit for processing the focus output signal by low pass filtering to obtain a filtered signal, a direct current level remover for removing a direct current component of the filtered signal to obtain a warp-indicating signal, and a speed controller for comparing the warp-indicating signal with a predetermined threshold value to determine extent of warping of the optical disc. The speed controller is operable to control the optical storage system so as to limit maximum rotation speed of the optical disc according to result of the comparison made by the speed controller.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: April 22, 2008
    Assignee: Micro-Star International Co., Ltd.
    Inventors: Ping-Kai Huang, Cheng-Pin Wang
  • Patent number: 7352669
    Abstract: A digital signal processing device is provided for disc rotation control in an optical storage system, which is capable of generating a focusing error signal from light that was reflected by an optical disc loaded in the optical storage system. The digital signal processing device includes a low pass filter for removing a high-frequency component of the focusing error signal to obtain a filtered signal, a direct current level remover for removing a direct current component of the filtered signal to obtain a warp-indicating signal, and a controller for comparing the warp-indicating signal with a predetermined threshold value to determine extent of warping of the optical disc. The controller functions to control the optical storage system so as to limit maximum rotation speed of the optical disc according to result of the comparison made by the controller.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: April 1, 2008
    Assignee: Micro-Star International Co., Ltd.
    Inventors: Ping-Kai Huang, Cheng-Pin Wang
  • Patent number: 7297490
    Abstract: Provided are a method for preparing an array for authenticating biological samples and a method for authenticating the biological samples based on analysis of variable sequences of ribosomal RNA genes as well as a kit for authentication of the biological samples. The hybridization of probes of the samples to the array of overlapping fragments of authentic variable ribosomal RNA gene regions is quantified. The test enables distinction of species or prokaryotic strains and is unaffected by intra-species or strain polymorphism. The method disclosed is illustrated by authentication of traditional Chinese medicinal materials.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: November 20, 2007
    Assignee: Chinese University of Hong Kong
    Inventors: Hoi Shan Kwan, Chun Yin Mak, Ping Kay Hon, legal representative, Oi Wah Lau, deceased
  • Publication number: 20060028945
    Abstract: A digital signal processing device is provided for disc rotation control in an optical storage system, which is capable of generating a focusing error signal from light that was reflected by an optical disc loaded in the optical storage system. The digital signal processing device includes a low pass filter for removing a high-frequency component of the focusing error signal to obtain a filtered signal, a direct current level remover for removing a direct current component of the filtered signal to obtain a warp-indicating signal, and a controller for comparing the warp-indicating signal with a predetermined threshold value to determine extent of warping of the optical disc. The controller functions to control the optical storage system so as to limit maximum rotation speed of the optical disc according to result of the comparison made by the controller.
    Type: Application
    Filed: July 13, 2004
    Publication date: February 9, 2006
    Inventors: Ping-Kai Huang, Cheng-Pin Wang
  • Publication number: 20050213454
    Abstract: An apparatus is provided for disc rotation control in an optical storage system, which is capable of generating a focusing error signal from light that was reflected by a loaded optical disc. The apparatus includes a focus controller for processing the focusing error signal to obtain a focus output signal, a low pass filter unit for processing the focus output signal by low pass filtering to obtain a filtered signal, a direct current level remover for removing a direct current component of the filtered signal to obtain a warp-indicating signal, and a speed controller for comparing the warp-indicating signal with a predetermined threshold value to determine extent of warping of the optical disc. The speed controller is operable to control the optical storage system so as to limit maximum rotation speed of the optical disc according to result of the comparison made by the speed controller.
    Type: Application
    Filed: October 22, 2004
    Publication date: September 29, 2005
    Inventors: Ping-Kai Huang, Cheng-Pin Wang
  • Publication number: 20040235021
    Abstract: Provided are a method for preparing an array for authenticating biological samples and a method for authenticating the biological samples based on analysis of variable sequences of ribosomal RNA genes as well as a kit for authentication of the biological samples. The hybridization of probes of the samples to the array of overlapping fragments of authentic variable ribosomal RNA gene regions is quantified. The test enables distinction of species or prokaryotic strains and is unaffected by intra-species or strain polymorphism. The method disclosed is illustrated by authentication of traditional Chinese medicinal materials.
    Type: Application
    Filed: March 10, 2004
    Publication date: November 25, 2004
    Inventors: Hoi Shan Kwan, Chun Yin Mak, Oi Wah Lau, Ping Kay Hon