Patents by Inventor David C. Nagel

David C. Nagel 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).

  • MESSAGING DEVICES AND METHODS
    Publication number: 20240107357
    Abstract: An electronic messaging device includes a receiver configured to receive a message at one of a first operational frequency and second operational frequency. The messaging device can operate using a time synchronous protocol and can receive commands through over-the-internet-programming (OTIP) and over-the-air-programming (OTAP).
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Inventors: John F. Nagel, J. Roy Pottle, Peter C. Barnett, David Andersen, Jamie Gordon Nichol, Sangsoo Kim
  • Method for reducing congestion in packet-switched networks
    Patent number: 7227843
    Abstract: The present invention permits a network service provider to detect an operational condition—such as congestion—in a packet-switched network and to alleviate such congestion by providing customer incentives to avoid use of the network. The detection mechanism triggers an incentive such as the modification of the user's access charges and the customer can be immediately notified of either the occurrence of the congestion or of information regarding the incentive. Usage of the network during congested periods can be deterred by imposing additional access charges during such periods—similarly, customers can be given a discount to encourage usage during periods of low congestion. An incentive schedule can be tailored to dynamically change the usage patterns of the customers of the network to accommodate the operational conditions in the network.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: June 5, 2007
    Assignee: AT&T Corp.
    Inventors: David Gerald Belanger, Steven Michael Bellovin, Ramon Caceres, David C. Nagel
  • Method for reducing congestion in packet-switched networks
    Publication number: 20030137938
    Abstract: The present invention permits a network service provider to detect an operational condition—such as congestion—in a packet-switched network and to alleviate such congestion by providing customer incentives to avoid use of the network. The detection mechanism triggers an incentive such as the modification of the user's access charges and the customer can be immediately notified of either the occurrence of the congestion or of information regarding the incentive. Usage of the network during congested periods can be deterred by imposing additional access charges during such periods—similarly, customers can be given a discount to encourage usage during periods of low congestion. An incentive schedule can be tailored to dynamically change the usage patterns of the customers of the network to accommodate the operational conditions in the network.
    Type: Application
    Filed: February 24, 2003
    Publication date: July 24, 2003
    Applicant: AT&T Corp.
    Inventors: David Gerald Belanger, Steven Michael Bellovin, Ramon Caceres, David C. Nagel