Patents by Inventor Michael P. Duggan

Michael P. Duggan 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).

  • Patent number: 11571626
    Abstract: Examples of the present disclosure describe systems and methods for providing software ownership validation of optical discs using secondary devices. In aspects, a user may request access to electronic content using a first device. In response to the request, a local network comprising the first device may be queried to identify a second device having access to the electronic content. For example, the second device may comprise an optical disc comprising the electronic content. Upon identifying the second device, the second device may be queried to determine whether the second device is able to validate the user's ownership of the electronic content. If the second device is able to validate the user's ownership of the electronic content, the first device is provided access to the electronic content.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 7, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tero J. Patana, Shuoqi S. Wang, Michael P. Duggan
  • Publication number: 20220134235
    Abstract: Examples of the present disclosure describe systems and methods for providing software ownership validation of optical discs using secondary devices. In aspects, a user may request access to electronic content using a first device. In response to the request, a local network comprising the first device may be queried to identify a second device having access to the electronic content. For example, the second device may comprise an optical disc comprising the electronic content. Upon identifying the second device, the second device may be queried to determine whether the second device is able to validate the user's ownership of the electronic content. If the second device is able to validate the user's ownership of the electronic content, the first device is provided access to the electronic content.
    Type: Application
    Filed: November 2, 2020
    Publication date: May 5, 2022
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Tero J. PATANA, Shuoqi S. WANG, Michael P. DUGGAN
  • Patent number: 7834481
    Abstract: A threshold detection circuit includes, in one embodiment, a comparator having a first input connection for receiving a backup voltage from a backup power source, a second input connection for receiving a primary voltage from a primary power source, and an output connection for providing an output voltage; a first resistor and a first capacitor that are coupled in series between the first input connection and the output connection; and a second resistor that is coupled between the first input connection and the output connection, and that is coupled in parallel to the series of first resistor and the first capacitor.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: November 16, 2010
    Assignee: Scientific-Atlanta, Inc.
    Inventors: John D. Anderson, Michael P. Duggan
  • Patent number: 7608947
    Abstract: A back-up power supply system includes, in one embodiment, a threshold detector circuit; a first switching circuit for enabling access to a back-up power source, the first switching circuit comprising at least a first transistor; and an inverting switch coupled between the first switching circuit and the threshold detector circuit, the inverting switch comprising an input and an output, the inverting switch configured to receive a signal at the input, invert the signal, and provide the inverted signal from the output to the first switching circuit, the inverting switch further comprising a delay circuit, the delay circuit configured to provide a substantially-immediate high-output during an off-to-on transition at the output of the inverting switch and a switching delay during an on-to-off transition at the output of the inverting switch, the inverting switch comprising a first resistive branch in parallel to a second branch comprising the delay circuit, the first resistive branch and the second branch connec
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: October 27, 2009
    Assignee: Scientific-Atlanta, Inc.
    Inventors: John D. Anderson, Michael P. Duggan
  • Publication number: 20080211479
    Abstract: A threshold detection circuit includes, in one embodiment, a comparator having a first input connection for receiving a backup voltage from a backup power source, a second input connection for receiving a primary voltage from a primary power source, and an output connection for providing an output voltage; a first resistor and a first capacitor that are coupled in series between the first input connection and the output connection; and a second resistor that is coupled between the first input connection and the output connection, and that is coupled in parallel to the series of first resistor and the first capacitor
    Type: Application
    Filed: May 13, 2008
    Publication date: September 4, 2008
    Inventors: John D. Anderson, Michael P. Duggan
  • Publication number: 20080197704
    Abstract: A back-up power supply system includes, in one embodiment, a threshold detector circuit; a first switching circuit for enabling access to a back-up power source, the first switching circuit comprising at least a first transistor; and an inverting switch coupled between the first switching circuit and the threshold detector circuit, the inverting switch comprising an input and an output, the inverting switch configured to receive a signal at the input, invert the signal, and provide the inverted signal from the output to the first switching circuit, the inverting switch further comprising a delay circuit, the delay circuit configured to provide a substantially-immediate high-output during an off-to-on transition at the output of the inverting switch and a switching delay during an on-to-off transition at the output of the inverting switch, the inverting switch comprising a first resistive branch in parallel to a second branch comprising the delay circuit, the first resistive branch and the second branch connec
    Type: Application
    Filed: April 28, 2008
    Publication date: August 21, 2008
    Inventors: John D. Anderson, Michael P. Duggan
  • Patent number: 7394172
    Abstract: Systems and methods for switching to a back-up power supply are provided. One such system includes a threshold detector circuit; a first switching circuit for enabling access to a first power source, the first switching circuit comprising at least a first transistor; and a second switching circuit for enabling access to a second power source, the second switching circuit comprising at least a second transistor; wherein the threshold detector is configured to cause the second switching circuit to enable access to the second power supply responsive to a voltage provided by the first power supply dropping below a predetermined threshold.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: July 1, 2008
    Assignee: Scientific-Atlanta, Inc.
    Inventors: John D. Anderson, Michael P. Duggan
  • Patent number: D442056
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 15, 2001
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D423852
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 2, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D423856
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 2, 2000
    Inventor: Michael P. Duggan
  • Patent number: D423885
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 2, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D424345
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 9, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D424348
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 9, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D424349
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 9, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D424353
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 9, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D424354
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 9, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D425741
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 30, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D425742
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 30, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D425743
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 30, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan
  • Patent number: D432316
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: October 24, 2000
    Assignee: Melard Manufacturing Corp.
    Inventor: Michael P. Duggan