Patents by Inventor Yung-Kang Chen

Yung-Kang 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).

  • Publication number: 20090115579
    Abstract: A signal processing apparatus for receiving RFID signal comprises a first low-pass filter, a first down-sampler, a first comparator and a first waveform converter. The first low-pass filter filters the RFID signal. The first down-sampler down-samples the filtered RFID signal. The first comparator generates a new signal for value determination according to the down-sampled RFID signal. The first waveform converter converts the waveform of the new signal for the following process.
    Type: Application
    Filed: October 6, 2008
    Publication date: May 7, 2009
    Applicant: MICROELECTRONICS TECHNOLOGY INC.
    Inventors: MING TSAI CHEN, MING TSANG CHEN, YUNG KANG CHEN, YAO CHENG YEH, YI FENG SU
  • Patent number: 7077809
    Abstract: In a vasodilatation index measuring and analyzing system, a measuring unit includes a measuring device for measuring standard and comparative pulses of a digit of a subject in relaxed and comparative states, respectively. An external pressure is applied to a limb part of the subject to occlude blood flow to the digit following measurement of the standard pulse. The comparative pulse is measured upon release of the external pressure. A pre-processing unit is coupled to the measuring unit for filtering noise from and digitizing the standard and comparative pulses obtained by the measuring device. An analyzing unit is coupled to the pre-processing unit for calculating standard and comparative pulse areas of at least one cycle of the standard and comparative pulses processed by the pre-processing unit, respectively, and for subsequently calculating a pre-defined index related to a difference between the standard and comparative pulse areas.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: July 18, 2006
    Assignee: Hsien-Tsao WU
    Inventors: Hsien-Tsai Wu, Chih-Kai Chi, Yung-Kang Chen
  • Publication number: 20040254485
    Abstract: In a vasodilatation index measuring and analyzing system, a measuring unit includes a measuring device for measuring standard and comparative pulses of a digit of a subject in relaxed and comparative states, respectively. An external pressure is applied to a limb part of the subject to occlude blood flow to the digit following measurement of the standard pulse. The comparative pulse is measured upon release of the external pressure. A pre-processing unit is coupled to the measuring unit for filtering noise from and digitizing the standard and comparative pulses obtained by the measuring device. An analyzing unit is coupled to the pre-processing unit for calculating standard and comparative pulse areas of at least one cycle of the standard and comparative pulses processed by the pre-processing unit, respectively, and for subsequently calculating a pre-defined index related to a difference between the standard and comparative pulse areas.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 16, 2004
    Applicant: Hsien-Tsai WU
    Inventors: Hsien-Tsai Wu, Chih-Kai Chi, Yung-Kang Chen