Patents by Inventor Jack MacDougall

Jack MacDougall 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).

  • Multi-media digital interface systems and methods
    Patent number: 8462759
    Abstract: Systems and methods are provided herein for interfacing a first multi-media digital device with a second multi-media digital device. An exemplary method includes the steps of: (i) converting a plurality of differential digital content channels from the first multi-media digital device into a plurality of single-ended digital content channels; (ii) transmitting the plurality of single-ended digital content channels from the first multi-media digital device to the second multi-media digital device via one or more coaxial cables; and (iii) receiving the single-ended digital content channels from the one or more coaxial cables and converting the single-ended digital content channels back into a plurality of differential digital content channels that are supplied to the second multi-media digital device.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: June 11, 2013
    Assignee: Semtech Canada Corporation
    Inventors: Mohammad Hossein Shakiba, John Hudson, Jack MacDougall, Martin Rofheart, David L. Lynch
  • Transmit, receive, and cross-talk cancellation filters for back channelling
    Patent number: 8159927
    Abstract: Systems and methods are provided herein for interfacing a first digital device with a second digital device. An exemplary method includes the steps of combining one of a plurality of digital content channels and a back channel to form a composite channel, the back channel for transmitting information from the second multi-media digital device to the first multi-media digital device, converting a digital content channel and the composite channel from the first digital device into a plurality of single-ended digital content channels, transporting the plurality of single-ended digital content channels from the first digital device to the second digital device, and converting the single-ended digital content channels back into the digital content channel and the composite channel that are supplied to the second digital device. Cross-talk interference is reduced between the back channel and one of the plurality of digital content channels via a cross-talk cancellation filter.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: April 17, 2012
    Assignee: Gennum Corporation
    Inventors: Mohammad Hossein Shakiba, John Hudson, Jack MacDougall, Martin Rofheart, David L. Lynch
  • Transmit, Receive, and Cross-Talk Cancellation Filters for Back Channelling
    Publication number: 20100043045
    Abstract: Systems and methods are provided herein for interfacing a first digital device with a second digital device. An exemplary method includes the steps of combining one of a plurality of digital content channels and a back channel to form a composite channel, the back channel for transmitting information from the second multi-media digital device to the first multi-media digital device, converting a digital content channel and the composite channel from the first digital device into a plurality of single-ended digital content channels, transporting the plurality of single-ended digital content channels from the first digital device to the second digital device, and converting the single-ended digital content channels back into the digital content channel and the composite channel that are supplied to the second digital device. Cross-talk interference is reduced between the back channel and one of the plurality of digital content channels via a cross-talk cancellation filter.
    Type: Application
    Filed: June 15, 2009
    Publication date: February 18, 2010
    Inventors: Mohammad Hossein Shakiba, John Hudson, Jack MacDougall, Martin Rofheart, David L. Lynch
  • Multi-Media Digital Interface Systems and Methods
    Publication number: 20080201756
    Abstract: Systems and methods are provided herein for interfacing a first multi-media digital device with a second multi-media digital device. An exemplary method includes the steps of: (i) converting a plurality of differential digital content channels from the first multi-media digital device into a plurality of single-ended digital content channels; (ii) transmitting the plurality of single-ended digital content channels from the first multi-media digital device to the second multi-media digital device via one or more coaxial cables; and (iii) receiving the single-ended digital content channels from the one or more coaxial cables and converting the single-ended digital content channels back into a plurality of differential digital content channels that are supplied to the second multi-media digital device.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 21, 2008
    Inventors: Mohammad Hussein Shakiba, John Hudson, Jack MacDougall, Martin Rofheart, David L. Lynch