Patents by Inventor Ming Seng Kao

Ming Seng Kao 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: 8902952
    Abstract: A method for acquiring a code phase shift between an input sequence and a reference sequence is provided. The method is to be implemented using an acquisition device that includes a mapping unit configured to transform the input sequence and the reference sequence respectively into an input signal and a reference signal each with a complex phase, a comparison unit configured to compare the input signal with the reference signal so as to obtain a phase coherent indicator, and calculating unit configured to obtain the code phase shift between the input sequence and the reference sequence based on a phase of the phase coherent indicator and a number of bits of the input sequence.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: December 2, 2014
    Assignees: National Chiao Tung University, National Applied Research Laboratories
    Inventors: Ming-Seng Kao, Chieh-Fu Chang, Wan-Hsin Hsieh
  • Patent number: 8472622
    Abstract: A wireless communication method for transmitting information to the designated region with the boundary defined by the sharp cutoff is provided. Receivers outside the designated region are excluded from retrieving the encoded information. The boundary of designated region is adjustable. The wireless communication method can be applied to clearly defining the accepted region and rejection region in satellite communications. The wireless communication method includes steps of providing an information; encoding the information into an encoded data regarding a designated bit-energy-to-noise-ratio; transmitting the encoded data to form a virtual antenna radiation pattern covering a designated region with boundary defined by the sharp cutoff based on the designated bit-energy-to-noise-ratio; receiving the encoded data; and decoding the encoded data into the original information only when receivers within the designated region with bit-energy-to-noise-ratio no less than the designated bit-energy-to-noise-ratio.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: June 25, 2013
    Assignee: National Applied Research Laboratories
    Inventors: Chieh-Fu Chang, Wan-Hsin Hsieh, Ming-Seng Kao
  • Publication number: 20130107927
    Abstract: A method for acquiring a code phase shift between an input sequence and a reference sequence is provided. The method is to be implemented using an acquisition device that includes a mapping unit configured to transform the input sequence and the reference sequence respectively into an input signal and a reference signal each with a complex phase, a comparison unit configured to compare the input signal with the reference signal so as to obtain a phase coherent indicator, and calculating unit configured to obtain the code phase shift between the input sequence and the reference sequence based on a phase of the phase coherent indicator and a number of bits of the input sequence.
    Type: Application
    Filed: September 6, 2012
    Publication date: May 2, 2013
    Applicants: National Applied Researach Laboratories, National Chiao Tung University
    Inventors: Ming-Seng Kao, Chieh-Fu Chang, Wan-Hsin Hsieh
  • Patent number: 8238506
    Abstract: A high-accuracy and computational efficient phase-discriminating device is provided and includes a phase-discriminating unit. The phase-discriminating unit converts an input and a reference signals into an input and a reference sequences respectively by a one-bit A/D conversion operation, determines a first value, an in-phase component and a quadrature component of the input signal in response to the input and the reference sequences, and produces an estimated phase of the input signal according to a relation among the first value, the in-phase component and a polarity of the quadrature component, wherein the first value is a certain integer being one of a first integer and a second integer, the first integer is a sampling count of the one-bit A/D conversion operation for producing the input sequence, and the second integer is a summation of an absolute value of the in-phase component and that of the quadrature component.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: August 7, 2012
    Assignee: National Applied Research Laboratories
    Inventors: Chieh-Fu Chang, Ru-Muh Yang, Ming-Seng Kao
  • Publication number: 20100235708
    Abstract: A wireless communication method for transmitting information to the designated region with the boundary defined by the sharp cutoff is provided. Receivers outside the designated region are excluded from retrieving the encoded information. The boundary of designated region is adjustable. The wireless communication method can be applied to clearly defining the accepted region and rejection region in satellite communications. The wireless communication method includes steps of providing an information; encoding the information into an encoded data regarding a designated bit-energy-to-noise-ratio; transmitting the encoded data to form a virtual antenna radiation pattern covering a designated region with boundary defined by the sharp cutoff based on the designated bit-energy-to-noise-ratio; receiving the encoded data; and decoding the encoded data into the original information only when receivers within the designated region with bit-energy-to-noise-ratio no less than the designated bit-energy-to-noise-ratio.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 16, 2010
    Inventors: Chieh-Fu Chang, Wan-Hsin Hsieh, Ming-Seng Kao
  • Publication number: 20100171526
    Abstract: A high-accuracy and computational efficient phase-discriminating device is provided and includes a phase-discriminating unit. The phase-discriminating unit converts an input and a reference signals into an input and a reference sequences respectively by a one-bit A/D conversion operation, determines a first value, an in-phase component and a quadrature component of the input signal in response to the input and the reference sequences, and produces an estimated phase of the input signal according to a relation among the first value, the in-phase component and a polarity of the quadrature component, wherein the first value is a certain integer being one of a first integer and a second integer, the first integer is a sampling count of the one-bit A/D conversion operation for producing the input sequence, and the second integer is a summation of an absolute value of the in-phase component and that of the quadrature component.
    Type: Application
    Filed: January 6, 2009
    Publication date: July 8, 2010
    Applicant: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Chieh-Fu Chang, Ru-Muh Yang, Ming-Seng Kao
  • Patent number: 5790288
    Abstract: A transport network with a transmission capacity for telecommunications in which nodes of the network are transparently connected with one another by optical glass fiber lines functionally to produce a full intermeshing of nodes permitting simultaneous addressing of all the nodes by every other node of the network. The nodes are coupled with one another in a matrix configuration in lines and columns. Each of corner nodes has at least n connections in the column direction and at least m connections in the line direction. Intermediate nodes (1,2 to 1,(m-1); n,2 to n,(m-1)) that are located in marginal lines, in a direction of the columns, have n connections and in a direction of the lines have 2.multidot.m connections. The intermediate nodes (2,1 to (n-1),1 and 2,m to (n-1),m)) located in marginal columns, in a line direction, have m connections and, in a column direction, have 2.multidot.n connections. Inner nodes of the network are connected with each of four neighbors by a total of 2.multidot.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: August 4, 1998
    Assignee: Nokia Telecommunications Oy
    Inventors: Hubert Anton Jager, Ming Seng Kao