Patents by Inventor Jhih-Guo Peng

Jhih-Guo Peng 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).

  • Passive tag with oscillator circuit and frequency identification system utilizing the same
    Patent number: 8183981
    Abstract: A passive tag receiving a reader signal provided by a reader is disclosed. The passive tag includes an antenna, an oscillator circuit, and an internal chip. The antenna receives the reader signal. The reader signal is within an operation frequency band. The oscillator circuit is coupled to the antenna and generates a frequency signal. The internal chip processes the reader signal according to power provided by the reader signal and the frequency signal when the reader signal is received and the frequency signal is generated.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: May 22, 2012
    Assignee: National Taiwan University of Science and Technology
    Inventors: Hsin-Chin Liu, Jhih-Guo Peng
  • Radio frequency identification tag
    Patent number: 8085130
    Abstract: A battery-assisted radio frequency identification (RFID) tag having a battery-assisted circuit and a filter is provided. The battery-assisted circuit generates a radio frequency signal whose frequency is outside an operating frequency band of the RFID tag to supply additional power to the RFID tag. The filter filters the radio frequency signal output from the battery-assisted circuit before the RFID tag demodulates a reader command, so that a modulation depth of the read command is less affected by multi-carrier. By using the battery-assisted circuit and the filter, the RFID tag has a longer read range and is less affected by multipath fading effects.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: December 27, 2011
    Assignee: National Taiwan University of Science and Technology
    Inventors: Hsin-Chin Liu, Jhih-Guo Peng
  • RADIO FREQUENCY IDENTIFICATION TAG
    Publication number: 20110068901
    Abstract: A battery-assisted radio frequency identification (RFID) tag having a battery-assisted circuit and a filter is provided. The battery-assisted circuit generates a radio frequency signal whose frequency is outside an operating frequency band of the RFID tag to supply additional power to the RFID tag. The filter filters the radio frequency signal output from the battery-assisted circuit before the RFID tag demodulates a reader command, so that a modulation depth of the read command is less affected by multi-carrier. By using the battery-assisted circuit and the filter, the RFID tag has a longer read range and is less affected by multipath fading effects.
    Type: Application
    Filed: November 6, 2009
    Publication date: March 24, 2011
    Applicant: National Taiwan University of Science and Technology
    Inventors: Hsin-Chin Liu, Jhih-Guo Peng
  • Passive Tag And Radio Frequency Identification System Utilizing The Same
    Publication number: 20100102925
    Abstract: A passive tag receiving a reader signal provided by a reader is disclosed. The passive tag includes an antenna, an oscillator circuit, and an internal chip. The antenna receives the reader signal. The reader signal is within an operation frequency band. The oscillator circuit is coupled to the antenna and generates a frequency signal. The internal chip processes the reader signal according to power provided by the reader signal and the frequency signal when the reader signal is received and the frequency signal is generated.
    Type: Application
    Filed: February 12, 2009
    Publication date: April 29, 2010
    Applicant: National Taiwan University of Science & Technology
    Inventors: Hsin-Chin Liu, Jhih-Guo Peng