Patents by Inventor Keiji Hoson

Keiji Hoson 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).

  • Magnetic card reader and magnetic data reproduction method, data demodulation method and demodulator of magnetic record data
    Patent number: 6570723
    Abstract: A magnetic card reader for causing a magnetic card to make a move relative to a magnetic head and reproducing data on the magnetic card by the magnetic head, said magnetic card reader includes an amplifier for amplifying a magnetic signal provided by the magnetic head, a peak detection section for detecting a peak point of amplifier output from the amplifier output, a data reproduction section for reproducing digital data based on the interval between the peak points, an anomaly detection section for detecting an anomaly of the peak point interval and an output value storage section for converting the amplifier output from analog form into digital form every predetermined time and storing the provided data.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: May 27, 2003
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Mitsuo Yokozawa, Hiroshi Nakamura, Shinya Morozumi, Keiji Hoson
  • Magnetic card reader and magnetic data reproduction method using signal peak point intervals
    Patent number: 6570722
    Abstract: A magnetic card reader for causing a magnetic card to make a move relative to a magnetic head and reproducing data on the magnetic card by the magnetic head, said magnetic card reader includes an amplifier for amplifying a magnetic signal provided by the magnetic head, a peak detection section for detecting a peak point of amplifier output from the amplifier output, a data reproduction section for reproducing digital data based on the interval between the peak points, an anomaly detection section for detecting an anomaly of the peak point interval and an output value storage section for converting the amplifier output from analog form into digital form every predetermined time and storing the provided data.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: May 27, 2003
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Mitsuo Yokozawa, Hiroshi Nakamura, Shinya Morozumi, Keiji Hoson
  • Magnetic card reader and magnetic data reproduction method data demodulation method and demodulator of magnetic record data
    Publication number: 20020191312
    Abstract: A magnetic card reader for causing a magnetic card to make a move relative to a magnetic head and reproducing data on the magnetic card by the magnetic head, said magnetic card reader includes an amplifier for amplifying a magnetic signal provided by the magnetic head, a peak detection section for detecting a peak point of amplifier output from the amplifier output, a data reproduction section for reproducing digital data based on the interval between the peak points, an anomaly detection section for detecting an anomaly of the peak point interval and an output value storage section for converting the amplifier output from analog form into digital form every predetermined time and storing the provided data.
    Type: Application
    Filed: May 14, 2002
    Publication date: December 19, 2002
    Applicant: KABUSHIKI KAISHA SANKYO SEIKI SEISAKUSHO
    Inventors: Mitsuo Yokozawa, Hiroshi Nakamura, Shinya Morozumi, Keiji Hoson
  • Magnetic card reader and magnetic data reproduction method data demodulation method and demodulator of magnetic record data
    Publication number: 20010017742
    Abstract: A magnetic card reader for causing a magnetic card to make a move relative to a magnetic head and reproducing data on the magnetic card by the magnetic head, said magnetic card reader includes an amplifier for amplifying a magnetic signal provided by the magnetic head, a peak detection section for detecting a peak point of amplifier output from the amplifier output, a data reproduction section for reproducing digital data based on the interval between the peak points, an anomaly detection section for detecting an anomaly of the peak point interval and an output value storage section for converting the amplifier output from analog form into digital form every predetermined time and storing the provided data.
    Type: Application
    Filed: January 24, 2001
    Publication date: August 30, 2001
    Inventors: Mitsuo Yokozawa, Hiroshi Nakamura, Shinya Morozumi, Keiji Hoson