Patents by Inventor Hung-Ching Chen

Hung-Ching 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: 9709090
    Abstract: A circulating module of a linear guideway includes a slider and a circulator. The slider has two carrying surfaces arranged on two opposite outer surface thereof. Each carrying surface includes a first circular-arc segment and two second circular segments respectively arranged at two opposite sides of the first circular-arc segment, and a radius of each first circular-arc segment is smaller than that of each second circular-arc segment. The circulator includes two inner circular-arc surfaces. The slider is inserted into the circulator, the carrying surfaces stretch a distance between the inner circular-arc surfaces, each inner circular-arc surface is abutted against the two second circular-arc segments of the corresponding carrying surface, and a gap is formed between each inner circular-arc surface and the corresponding first circular-arc segments.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: July 18, 2017
    Assignee: OME TECHNOLOGY CO., LTD.
    Inventors: Hung-Ching Chen, Jia-Sin Lai
  • Patent number: 9677610
    Abstract: An end module of a linear guideway includes an end cap, a cover, and a lubricating sheet. The end cap has an accommodating trough, and the cover is installed on the end cap to cover the accommodating trough, so a surface of the end cap faces a surface of the cover. At least one supporting pillar is formed on one of the two facing surfaces of the end cap and the cover, and the supporting pillar abuts against the other one of the two facing surfaces of the end cap and the cover. The lubricating sheet is received in the accommodating trough. The lubricating sheet has at least one penetrating hole, and the supporting pillar is inserted into the penetrating hole. Thus, the lubricating sheet of the instant disclosure is provided without any deformation, which is caused by the end cap and the cover.
    Type: Grant
    Filed: January 3, 2016
    Date of Patent: June 13, 2017
    Assignee: OME TECHNOLOGY CO., LTD.
    Inventors: Hung-Ching Chen, Jia-Sin Lai
  • Publication number: 20170097041
    Abstract: An end module of a linear guideway includes an end cap, a cover, and a lubricating sheet. The end cap has an accommodating trough, and the cover is installed on the end cap to cover the accommodating trough, so a surface of the end cap faces a surface of the cover. At least one supporting pillar is formed on one of the two facing surfaces of the end cap and the cover, and the supporting pillar abuts against the other one of the two facing surfaces of the end cap and the cover. The lubricating sheet is received in the accommodating trough. The lubricating sheet has at least one penetrating hole, and the supporting pillar is inserted into the penetrating hole. Thus, the lubricating sheet of the instant disclosure is provided without any deformation, which is caused by the end cap and the cover.
    Type: Application
    Filed: January 3, 2016
    Publication date: April 6, 2017
    Inventors: Hung-Ching Chen, Jia-Sin Lai
  • Publication number: 20170097043
    Abstract: A circulating module of a linear guideway includes a slider and a circulator. The slider has two carrying surfaces arranged on two opposite outer surface thereof. Each carrying surface includes a first circular-arc segment and two second circular segments respectively arranged at two opposite sides of the first circular-arc segment, and a radius of each first circular-arc segment is smaller than that of each second circular-arc segment. The circulator includes two inner circular-arc surfaces. The slider is inserted into the circulator, the carrying surfaces stretch a distance between the inner circular-arc surfaces, each inner circular-arc surface is abutted against the two second circular-arc segments of the corresponding carrying surface, and a gap is formed between each inner circular-arc surface and the corresponding first circular-arc segments.
    Type: Application
    Filed: February 1, 2016
    Publication date: April 6, 2017
    Inventors: HUNG-CHING CHEN, JIA-SIN LAI
  • Publication number: 20130230107
    Abstract: A method for determining a motion vector of a specific macro-block of an image frame includes: determining a plurality of motion vectors of a plurality of macro-blocks of the image frame, wherein the macro-blocks comprise at least the specific macro-block and its neighboring macro-blocks; determining weighting factors of the macro-blocks; for a first motion vector of the plurality of motion vectors, determining a cost of the first motion vector according to at least a portion of the weighting factors and the motion vectors; for a second motion vector of the plurality of motion vectors, determining a cost of the second motion vector according to at least a portion of the weighting factors and the motion vectors; and refining determination of the motion vector of the specific macro-block according to the cost of the first motion vector and the cost of the second motion vector.
    Type: Application
    Filed: March 1, 2012
    Publication date: September 5, 2013
    Inventor: Hung-Ching Chen
  • Publication number: 20130109289
    Abstract: An electronic device includes a housing, a covering module, and a temperature sensing module. The housing defines a cooling opening. The temperature sensing module is connected to the covering module and adapted to detect a temperature of the housing and output a control signal to the covering module. When the temperature of the housing is lower than a pre-set temperature, the covering module closes the cooling opening. When the temperature of the housing is equal or greater than the pre-set temperature, the control signal controls the covering module to move relative to the housing and open the cooling opening.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 2, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: WEI-CHENG CHENG, LEE-HUI KUO, CHIH-HANG CHAO, PO-YEN HSU, YEN-CHI TSAI, HUNG-CHING CHEN
  • Patent number: 8199478
    Abstract: An electronic device includes an upper cover and a main body. A sliding assembly is disposed between the upper cover and the main body and includes a sliding portion, a spring, and a track with a first positioning portion disposed at the center of a side of the track and two second positionings portion disposed on two ends of the side of the track. The spring including an engaging portion and two ends, and the sliding portion are fixed on the cover. The engaging portion and the ends form an included angle. The sliding portion is movably connected to the track and slides thereon. When the sliding portion slides on the track, the engaging portion is engaged with one of the first positioning portion and the second positioning portions.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: June 12, 2012
    Assignee: Quanta Computer Inc.
    Inventors: Yuan-Chen Liang, Cheng-Wang Lin, Jui-Lan Yu, Chia-Hui Wu, Hung-Ching Chen
  • Publication number: 20120084335
    Abstract: A method and apparatus of processing floating point number(s) is provided. The method which processes a plurality of first floating point numbers each having a mantissa and an exponent includes: normalizing exponents of the first floating point numbers according to a minimum value of the exponents to generate normalized exponents of the first floating point numbers; generating a plurality of second floating point numbers respectively corresponding to the first floating point numbers according to mantissas and the normalized exponents of the first floating point numbers; utilizing a processor to perform a specific computation on the second floating point numbers to generate a plurality of third floating point numbers; and de-normalizing each of the normalized exponents to accordingly generate a de-normalization result and adjusting the third floating point numbers according to the de-normalization result.
    Type: Application
    Filed: October 3, 2010
    Publication date: April 5, 2012
    Inventor: Hung-Ching Chen
  • Publication number: 20100309612
    Abstract: An electronic device includes an upper cover and a main body. A sliding assembly is disposed between the upper cover and the main body and includes a sliding portion, a spring, and a track with a first positioning portion disposed at the center of a side of the track and two second positionings portion disposed on two ends of the side of the track. The spring including an engaging portion and two ends, and the sliding portion are fixed on the cover. The engaging portion and the ends form an included angle. The sliding portion is movably connected to the track and slides thereon. When the sliding portion slides on the track, the engaging portion is engaged with one of the first positioning portion and the second positioning portions.
    Type: Application
    Filed: September 1, 2009
    Publication date: December 9, 2010
    Applicant: QUANTA COMPUTER INC.
    Inventors: Yuan-Chen Liang, Cheng-Wang Lin, Jui-Lan Yu, Chia-Hui Wu, Hung-Ching Chen
  • Patent number: 6754147
    Abstract: A phase locked loop (PLL) for generating an oscillation signal such that the oscillation signal maintains a substantially constant phase difference with respect to a phase of a reference signal. The PLL includes a first frequency divider for dividing a frequency of the oscillation signal by a first divisor, and for generating a number of multiphase signals, such that each multiphase signal is out of phase with each of the other multiphase signals, a phase shift detection circuit for comparing a phase of the oscillation signal with the phase of the reference signal, and a phase adjusting circuit for selecting one of the multiphase signals generated by the first frequency divider to be an output signal such that the PLL is able to reduce the phase difference between the oscillation signal and the reference signal.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: June 22, 2004
    Assignee: Mediatek Incorporation
    Inventors: Tse-Hsiang Hsu, Hung-Ching Chen
  • Publication number: 20040095861
    Abstract: A phase locked loop (PLL) for generating an oscillation signal such that the oscillation signal maintains a substantially constant phase difference with respect to a phase of a reference signal. The PLL includes a first frequency divider for dividing a frequency of the oscillation signal by a first divisor, and for generating a number of multiphase signals, such that each multiphase signal is out of phase with each of the other multiphase signals, a phase shift detection circuit for comparing a phase of the oscillation signal with the phase of the reference signal, and a phase adjusting circuit for selecting one of the multiphase signals generated by the first frequency divider to be an output signal such that the PLL is able to reduce the phase difference between the oscillation signal and the reference signal.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Inventors: Tse-Hsiang Hsu, Hung-Ching Chen