Patents by Inventor Simon Su

Simon Su 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).

  • Control device for permitting two-stage operation of an alarm system
    Patent number: 5610576
    Abstract: A control device for an alarm system includes a sensor circuit, an amplifier circuit for amplifying a sensor signal from the sensor circuit, a filter circuit for filtering an amplified output of the amplifier circuit, and first and second comparators, each having a reference input and a test input which receives a filtered signal output of the filter circuit. The first reference signal present at the reference input of the first comparator is lower than the second reference signal present at the reference input of the second comparator. The first comparator activates an oscillator circuit to generate an intermittent activating signal when the filtered signal output exceeds the first reference signal. A first alarm signal source presents a first control signal to the alarm system upon reception of the intermittent activating signal from the oscillator circuit.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: March 11, 1997
    Assignee: Lite-On Automotive Corporation
    Inventor: Simon Su