Patents by Inventor National Central University

National Central University 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: 20140136141
    Abstract: A method of motion trajectory reconstruction is described as follows: obtaining angular velocity time-domain data and linear acceleration time-domain data from a traveling inertial sensor; performing a spectrum analysis to transform the angular velocity time-domain data into angular velocity frequency-domain data; choosing a main frequency wave of the spectrum from the angular velocity frequency-domain data; transforming the angular velocity frequency-domain data only having the main frequency wave into angular displacement time-domain data; obtaining linear displacement time-domain data by calculating the linear acceleration time-domain data and the angular displacement time-domain data; and reconstructing and displaying the motion trajectory of the inertial sensor according to the linear displacement time-domain data and the angular displacement time-domain data.
    Type: Application
    Filed: December 14, 2012
    Publication date: May 15, 2014
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventor: National Central University
  • Publication number: 20130183221
    Abstract: A preparation method of nano-gold catalysts supported on copper oxide-cerium oxide (CuO—CeO2) and a process of preferential oxidation of carbon monoxide by oxygen in hydrogen stream with the nano-gold catalysts are disclosed. CuO—CeO2 is prepared by either coprecipitation or incipient-wetness impregnation method, and gold is deposited thereon by deposition-precipitation. After adding CuO into Au/CeO2, the interaction between the nano-gold and the support is increased, thereby enhancing the stability of the gold particle and the activity of the catalysts. Preferential oxidation of CO in hydrogen stream (with O2 existing) over these catalysts is carried out in a fixed bed reactor. The O2/CO ratio should be between 0.5 and 4. The catalyst is applied to remove CO (to lower than 10 ppm) in hydrogen stream in fuel cell to prevent from poisoning of the electrode of the fuel cell.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 18, 2013
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventor: NATIONAL CENTRAL UNIVERSITY
  • Publication number: 20130183220
    Abstract: The preparation of bimetallic gold-silver cerium dioxide-supported catalysts and the process of oxidation of carbon monoxide (CO) in air to remove CO using the gold-silver cerium dioxide-supported catalysts are disclosed. The gold loading is between 0.5 and 5 wt. %. Gold and silver particle sizes are between 1 and 3 nm, and Au/Ag weight ratio is between 1 and 10. Oxidation of CO in air over these catalysts is carried out in a fixed bed reactor to remove CO.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 18, 2013
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventor: NATIONAL CENTRAL UNIVERSITY
  • Publication number: 20130175455
    Abstract: A laser cavity two-photon spectroscopy includes a gain medium, a first reflector, a second reflector, an electrical pumping module, and a two-photon absorption cell. The first reflector is disposed at a side of the gain medium. The second reflector is movably disposed at a side of the gain medium relative to the first reflector. The electrical pumping module is electrically connected to the gain medium. Therefore, the gain medium is able to emit a light beam, which bounces back and forth between the first reflector and the second reflector and forms a laser beam through enhanced by the gain medium. The two-photon absorption cell disposed between the gain medium and the second reflector includes a plurality of two-photon absorption mediums. The two-photon absorption mediums absorb a portion of the laser beam reflected between the first reflector and the second reflector and then emit fluorescence.
    Type: Application
    Filed: January 3, 2013
    Publication date: July 11, 2013
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventor: National Central University
  • Publication number: 20130169949
    Abstract: Measuring device of the present invention includes a plurality of measuring sites for generating a plurality of optical paths and various dilutions. The range for concentration measurement and the measurement accuracy are enhanced due to the plurality of optical path length, and the interference on the measurement ranges and results caused by the concentration or the turbidity of suspended solid is reduced and removed by water sample dilution, and thus the characteristic wavelengths of the components in the water are measured. Next, the information of spectrum database is used to determine the ingredients which may exist in the water (qualitative analysis), and UV-VIS-NIR absorbance spectrum analysis is used to obtain the concentration of the respective ingredients in the water at the same time (quantitative analysis).
    Type: Application
    Filed: December 27, 2012
    Publication date: July 4, 2013
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL CENTRAL UNIVERSITY
    Inventors: National Central University, Industrial Technology Research Institute
  • Publication number: 20130136151
    Abstract: A highly adaptive thermal properties measurement system and measuring method thereof, for measuring various thermal property values of a device under test without actually lighting up the device under test, are disclosed. The measurement system includes a light source unit, a light modulation module, a holding unit, a thermal reflection unit, a thermal signal capture unit, and a control and computation unit. A light field provided from the light source unit is first modulated by the light modulation module for its distribution of intensity, and then illuminates on the device under test such that the device under test is heated in a specific mode so as to simulate a temperature distribution of the device under test in a state of continuous operation. Further, the control and computation unit computes various thermal property values of the device under test based on a top-surface thermal signal and a bottom-surface thermal signal captured by the thermal signal capture unit.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 30, 2013
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventor: National Central University
  • Publication number: 20130105300
    Abstract: A Zr-based or Zr—Cu based metallic glass thin film (MGTF) coated on aluminum alloy substrate and a method of fabricating the metallic glass and MGTF coated on aluminum alloy substrate are disclosed. The Zr-based metallic glass thin film-coated aluminum alloy substrate of the present invention comprises: an aluminum alloy substrate; and a Zr-based metallic glass thin film located on the substrate, in which the Zr-based metallic glass is represented by the following formula 1, (ZraCubNicAld)100-xSix, ??[formula 1] wherein 45=<a=<75, 25=<b=<35, 5=<c=<15, 5=<d=<15, 0.1=<x=<10. The Zr—Cu-based metallic glass thin film coated substrate of the present invention comprises: an aluminum alloy substrate; a Zr—Cu-based metallic glass thin film located on the aluminum alloy substrate, in which the Zr—Cu-based metallic glass is represented by the following formula 2, (ZreCufAlgAgh)100-ySiy, ??[formula 2] wherein 35=<e=<55, 35=<f=<55, 5=<g=<15, 5=<h=<15, 0.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 2, 2013
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventor: National Central University