Patents by Inventor LaiKein James Chang

LaiKein James Chang 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).

  • Intelligent speed monitoring auto retract system
    Patent number: 6636374
    Abstract: A system for hardware intelligent speed monitoring and auto-retract is disclosed. The system contains a monitoring device that monitors the TACH (Tachometer) output of motor driver. The device provides a trigger to the signal processor and a retract mechanism to retract the actuator when the spindle motor speed is unexpectedly much higher or lower than normal speed. The system DSP (Digital Signal Processor) is unaware of such occurrence.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: October 21, 2003
    Assignee: Seagate Technology LLC
    Inventors: Ban Hok Goh, Nan Ling Goh, Tze Ming Jimmy Pang, Kah Liang Gan, LaiKein James Chang