Patents by Inventor Michael F. Dries

Michael F. Dries 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).

  • Magneto-resistive memory having sense amplifier with offset control
    Patent number: 6590805
    Abstract: A magneto-resistive memory is disclosed that includes a high-speed sense amplifier, that can reliably operate at low signal levels. The sense amplifier includes offset cancellation to reduce or eliminate the internal offsets of the amplifier. The offset cancellation is controlled by one or more switches, which during operation, selectively enable the offset cancellation of the amplifier and store the offsets in one or more coupling capacitors.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: July 8, 2003
    Assignee: Micron Technology, Inc.
    Inventors: Yong Lu, Michael F. Dries
  • Magneto-resistive memory having sense amplifier with offset control
    Publication number: 20030067801
    Abstract: A magneto-resistive memory is disclosed that includes a high-speed sense amplifier that can reliably operate at low signal levels. The sense amplifier includes offset cancellation to reduce or eliminate the internal offsets of the amplifier. The offset cancellation is controlled by one or more switches, which during operation, selectively enable the offset cancellation of the amplifier and store the offsets in one or more coupling capacitors.
    Type: Application
    Filed: November 12, 2002
    Publication date: April 10, 2003
    Inventors: Yong Lu, Michael F. Dries
  • Magneto-resistive memory having sense amplifier with offset control
    Patent number: 6487111
    Abstract: A magneto-resistive memory is disclosed that includes a high-speed sense amplifier that can reliably operate at low signal levels. The sense amplifier includes offset cancellation to reduce or eliminate the internal offsets of the amplifier. The offset cancellation is controlled by one or more switches, which during operation, selectively enable the offset cancellation of the amplifier and store the offsets in one or more coupling capacitors.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: November 26, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Yong Lu, Michael F. Dries
  • Magneto-resistive memory having sense amplifier with offset control
    Patent number: 6396733
    Abstract: A magneto-resistive memory is disclosed that includes a high-speed sense amplifier that can reliably operate at low signal levels. The sense amplifier includes offset cancellation to reduce or eliminate the internal offsets of the amplifier. The offset cancellation is controlled by one or more switches, which during operation, selectively enable the offset cancellation of the amplifier and store the offsets in one or more coupling capacitors.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: May 28, 2002
    Assignee: Micron Technology, Inc.
    Inventors: Yong Lu, Michael F. Dries
  • Magneto-resistive memory having sense amplifier with offset control
    Publication number: 20020039309
    Abstract: A magneto-resistive memory is disclosed that includes a high-speed sense amplifier that can reliably operate at low signal levels. The sense amplifier includes offset cancellation to reduce or eliminate the internal offsets of the amplifier. The offset cancellation is controlled by one or more switches, which during operation, selectively enable the offset cancellation of the amplifier and store the offsets in one or more coupling capacitors.
    Type: Application
    Filed: October 31, 2001
    Publication date: April 4, 2002
    Inventors: Yong Lu, Michael F. Dries
  • Thermally isolated integrated circuit
    Patent number: 5783854
    Abstract: Thermally isolated circuit formed on a semiconductor on insulator structure includes a semiconductor surrounded by a semiconductor outer portion with an insulator therebetween. A cavity formed in the underlying semiconductor substrate opposite to the island provides thermal isolation.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: July 21, 1998
    Assignee: Honeywell Inc.
    Inventors: Michael F. Dries, Roger L. Roisen
  • Temperature stabilized bandgap voltage reference circuit
    Patent number: 5712590
    Abstract: A voltage reference circuit includes at least a first and a second voltage supply having different operating temperature ranges. Output voltages of the two voltage supplies are compared and one of the supplies is selected to provide an optimum voltage reference.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: January 27, 1998
    Inventors: Michael F. Dries, Benjamin L. Gingerich
  • Input compression apparatus for charge coupled devices
    Patent number: 4598414
    Abstract: An input circuit coupled to receive a signal from a detector and compressing the input current representative of such signal with a fixed compression curve before injection of a charge representative thereof into a charge coupled device shift register, thereby accommodating a large dynamic range of input signal.
    Type: Grant
    Filed: October 26, 1984
    Date of Patent: July 1, 1986
    Assignee: Honeywell Inc.
    Inventors: Michael F. Dries, Mark N. Gurnee