Patents Assigned to Honor Tone Limited
  • Personal breathalyzer having digital circuitry
    Patent number: 8590363
    Abstract: The present invention relates to a portable, personal breath tester device for testing the blood alcohol content of the user of the device. The breath tester comprises a circuit board, wherein a sensor, a liquid crystal display, and a processing unit are installed on and electrically connected to the circuit board. The processing unit receives a voltage signal from the sensor representing the blood alcohol content of the user and converts the voltage signal to a precise value that is displayed on the liquid crystal display.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: November 26, 2013
    Assignees: Resource Management, International, LLC, Honor Tone Limited
    Inventors: Paul C. Burke, Chi Wing Wong
  • Personal breathalyzer having digital circuitry
    Patent number: 7797982
    Abstract: The present invention relates to a portable, personal breath tester device for testing the blood alcohol content of the user of the device. The breath tester comprises a circuit board, wherein a sensor, a liquid crystal display, and a processing unit are installed on and electrically connected to the circuit board. The processing unit receives a voltage signal from the sensor representing the blood alcohol content of the user and converts the voltage signal to a precise value that is displayed on the liquid crystal display.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: September 21, 2010
    Assignees: Resource Management International, LLC, Honor Tone Limited
    Inventors: Paul C. Burke, Chi Wing Wong