Patents Assigned to Computer Methods Corporation
  • Active integrated circuit transponder and sensor apparatus for transmitting vehicle tire parameter data
    Patent number: 6087930
    Abstract: An active integrated circuit transponder with on-board power supply is mounted in or on a vehicle tire. A pressure sensor, a temperature sensor and a tire rotation sensor are mounted on a substrate along with the integrated circuit transponder chip, the power supply and an antenna. Upon receiving an interrogation signal from a remote source, the transponder activates the sensors to sense tire pressure and temperature and transmits an encoded radio frequency signal to the remote source containing serial, encoded tire identification, tire position on the vehicle, current tire pressure, current tire temperature and accumulated tire revolutions, as well as maximum and/or minimum tire and temperature pressure values encountered over a predetermined time period and other information specific to the tire.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: July 11, 2000
    Assignee: Computer Methods Corporation
    Inventors: Harvey J. Kulka, John H. Schramm
  • Transponder and sensor apparatus for sensing and transmitting vehicle tire parameter data
    Patent number: 5731754
    Abstract: A transponder and sensor apparatus with on-board power supply is mounted in or on a vehicle tire. A pressure sensor, a temperature sensor and a tire rotation sensor are mounted in a housing along with the transponder, the power supply and an antenna. Upon receiving an interrogation signal from a remote interrogator, the transponder activates the sensors to sense tire pressure and temperature and then backscatter-modulates the radio frequency signal from the interrogator with the tire condition parameter data from the sensors to return the backscatter modulated signal to the interrogator.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 24, 1998
    Assignee: Computer Methods Corporation
    Inventors: James E. Lee, Jr., Harvey J. Kulka, John H. Schramm
  • Active integrated circuit transponder and sensor apparatus for sensing and transmitting vehicle tire parameter data
    Patent number: 5483827
    Abstract: An active integrated circuit transponder with on-board power supply is mounted in or on a vehicle tire. A pressure sensor, a temperature sensor and a tire rotation sensor are mounted on a substrate along with the integrated circuit transponder chip, the power supply and an antenna. Upon receiving an interrogation signal from a remote source, the transponder activates the sensors to sense tire pressure and temperature and transmits an encoded radio frequency signal to the remote source containing serial, encoded tire identification, tire position on the vehicle, current tire pressure, current tire temperature and accumulated tire revolutions, as well as maximum and/or minimum tire and temperature pressure values encountered over a predetermined time period and other information specific to the tire.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: January 16, 1996
    Assignee: Computer Methods Corporation
    Inventors: Harvey J. Kulka, John H. Schramm