Patents by Inventor SweeChuan Samuel Gan

SweeChuan Samuel Gan 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).

  • In Situ Sensor Based Contact Detection
    Publication number: 20140268406
    Abstract: Apparatus and method for positional sensing and control. In accordance with some embodiments, a transducer is positioned adjacent a recording medium. The transducer includes a write element, a read element, a heater and a thermally responsive sensor. Power is applied to the heater to establish a selected fly height of the transducer relative to the medium. A contact event between the transducer and the medium is detected responsive to an accumulated plural count of pulses in a bias signal obtained from the thermally responsive sensor.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: CheeWee Cheng, Subhash Guddati, ShengYuan Lin, Andy Chou, SweeChuan Samuel Gan, Stefan Ionescu, Scott Ryun, Richard Martin, Jesse Speckhard
  • In situ sensor based contact detection
    Patent number: 8837076
    Abstract: Apparatus and method for positional sensing and control. In accordance with some embodiments, a transducer is positioned adjacent a recording medium. The transducer includes a write element, a read element, a heater and a thermally responsive sensor. Power is applied to the heater to establish a selected fly height of the transducer relative to the medium. A contact event between the transducer and the medium is detected responsive to an accumulated plural count of pulses in a bias signal obtained from the thermally responsive sensor.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 16, 2014
    Assignee: Seagate Technology LLC
    Inventors: CheeWee Cheng, Subhash Guddati, ShengYuan Lin, Andy Chou, SweeChuan Samuel Gan, Stefan Ionescu, Scott Ryun, Richard Martin, Jesse Speckhard