Patents by Inventor Alastair K. Livesey

Alastair K. Livesey 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).

  • Methods of programming digital multistate phase change materials
    Publication number: 20040098434
    Abstract: Non-binary methods of computing utilizing a digital multistate phase change material. Addition, subtraction, multiplication, and division are accomplished with the controlled application of energy to a phase change material. In one embodiment, energy in an amount insufficient to set the reset state of a phase change material is provided to store one or more numbers and further energy characteristic of the performance of a mathematical operation is provided to effect a computation. The set energy of the reset state of a phase change material provides an interval of energy that may be used to define programming states along the high resistance portion of the electrical resistance response curve of a phase change material. By sub-dividing this interval of energy, a plurality of programming states can be defined which are distinguishable in energy relative to the reset state.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 20, 2004
    Inventors: Stanford R. Ovshinsky, Alastair K. Livesey
  • Methods of computing with digital multistate phase change materials
    Patent number: 6671710
    Abstract: Non-binary methods of computing utilizing a digital multistate phase change material. Addition, subtraction, multiplication, and division are accomplished with the controlled application of energy to a phase change material. In one embodiment, energy in an amount insufficient to set the reset state of a phase change material is provided to store one or more numbers and further energy characteristic of the performance of a mathematical operation is provided to effect a computation. The set energy of the reset state of a phase change material provides an interval of energy that may be used to define programming states along the high resistance portion of the electrical resistance response curve of a phase change material. By sub-dividing this interval of energy, a plurality of programming states can be defined which are distinguishable in energy relative to the reset state.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: December 30, 2003
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Stanford R. Ovshinsky, Alastair K. Livesey
  • METHODS OF COMPUTING WITH DIGITAL MULTISTATE PHASE CHANGE MATERIALS
    Publication number: 20030212724
    Abstract: Non-binary methods of computing utilizing a digital multistate phase change material. Addition, subtraction, multiplication, and division are accomplished with the controlled application of energy to a phase change material. In one embodiment, energy in an amount insufficient to set the reset state of a phase change material is provided to store one or more numbers and further energy characteristic of the performance of a mathematical operation is provided to effect a computation. The set energy of the reset state of a phase change material provides an interval of energy that may be used to define programming states along the high resistance portion of the electrical resistance response curve of a phase change material. By sub-dividing this interval of energy, a plurality of programming states can be defined which are distinguishable in energy relative to the reset state.
    Type: Application
    Filed: May 10, 2002
    Publication date: November 13, 2003
    Inventors: Stanford R. Ovshinsky, Alastair K. Livesey