Patents by Inventor Fred M. Schreider

Fred M. Schreider 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).

  • Channel quality measurement and transmit power allocation in a dynamic spectrum management system
    Patent number: 10050762
    Abstract: A dynamic spectrum management (DSM) engine may determine the channel quality of one or more channels associated with the DSM engine when packets are not being transmitted over the channels. For example, the DSM engine may trigger a channel quality measurement on a non-primary channel on a condition that a predetermined period of time has lapsed since the last activity associated with the non-primary channel. Channel quality measurement may be triggered via a data sending event on the non-primary channel such as sending a data frame on the non-primary channel. The DSM engine may perform respective quality measurements on multiple channels and store the respective quality values in a database. Time-averaged channel qualities for the channels may be computed based on the stored quality values for computing transmit power distribution of across the channels.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 14, 2018
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Jane Mack, Francois Periard, Fred M. Schreider, John Cartmell, Amith V. Chincholi, Alpaslan Demir, Zinan Lin
  • CHANNEL QUALITY MEASUREMENT AND TRANSMIT POWER ALLOCATION IN A DYNAMIC SPECTRUM MANAGEMENT SYSTEM
    Publication number: 20140086081
    Abstract: A dynamic spectrum management (DSM) engine may determine the channel quality of one or more channels associated with the DSM engine when packets are not being transmitted over the channels. For example, the DSM engine may trigger a channel quality measurement on a non-primary channel on a condition that a predetermined period of time has lapsed since the last activity associated with the non-primary channel. Channel quality measurement may be triggered via a data sending event on the non-primary channel such as sending a data frame on the non-primary channel. The DSM engine may perform respective quality measurements on multiple channels and store the respective quality values in a database. Time-averaged channel qualities for the channels may be computed based on the stored quality values for computing transmit power distribution of across the channels.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 27, 2014
    Inventors: Jane Mack, Francois Periard, Fred M. Schreider, John Cartmell, Amith V. Chincholi, Alpaslan Demir, Zinan Lin
  • LOCATION DETERMINATION OF INFRASTRUCTURE DEVICE AND TERMINAL DEVICE
    Publication number: 20130217408
    Abstract: A method and apparatus determines a physical location of a wireless infrastructure device. At least one coarse location data from an associated terminal device is determined. Additional coarse location data are stored and accumulated. The device location is considered accurate by determining that enough received coarse location data has been received.
    Type: Application
    Filed: March 10, 2011
    Publication date: August 22, 2013
    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.
    Inventors: Robert A. DiFazio, Prabhakar R. Chitrapu, John M. McNally, James J. Nolan, Fred M. Schreider, Narayan P. Menon