Patents by Inventor Francesco Tampellini

Francesco Tampellini 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).

  • Electronic device for driving an actuator device for a hard disk and for driving a motor that turns the hard disk
    Patent number: 6721127
    Abstract: An electronic device for driving an actuator device for a hard disk and a motor for turning the hard disk, the device having a first driving circuit connected to the rotation motor and integrated in a chip of semiconductor material having a substrate defining a reference-potential region, a second driving circuit integrated in the chip and connected to a first actuation stage of the actuator device, and a third driving circuit integrated in the chip and connected to a second actuation stage of the actuator device. The actuator device supports a read/write transducer of the hard disk. The first actuation stage performs a rough displacement of the read/write transducer, while the second actuation stage performs a finer displacement of the same read/write transducer.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: April 13, 2004
    Assignee: STMicroelectronics S.r.l.
    Inventors: Giulio Ricotti, Giorgio Pedrazzini, Francesco Tampellini
  • Electronic device for driving an actuator device for a hard disk and for driving a motor that turns the hard disk
    Publication number: 20020001154
    Abstract: An electronic device for driving an actuator device for a hard disk and a motor for turning the hard disk, the device having a first driving circuit connected to the rotation motor and integrated in a chip of semiconductor material having a substrate defining a reference-potential region, a second driving circuit integrated in the chip and connected to a first actuation stage of the actuator device, and a third driving circuit integrated in the chip and connected to a second actuation stage of the actuator device. The actuator device supports a read/write transducer of the hard disk. The first actuation stage performs a rough displacement of the read/write transducer, while the second actuation stage performs a finer displacement of the same read/write transducer.
    Type: Application
    Filed: March 30, 2001
    Publication date: January 3, 2002
    Inventors: Giulio Ricotti, Giorgio Pedrazzini, Francesco Tampellini