Patents by Inventor John G. Leddy

John G. Leddy 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: 10038642
    Abstract: A method of traffic regulation in a packet communication network involves a token bucket associated with a subscriber. Packets arriving at the regulator are handled in accordance with the token bucket configuration. The method involves measuring a demand placed on the network by the subscriber. The token bucket configuration is dynamically adjusted based on the demand. Another method of traffic regulation handles packets arriving at the regulator in accordance with first and second token bucket configurations. The first token bucket regulates packet rate while the second token bucket regulates data rate. Another method of traffic regulation involves handling packets in accordance with a token bucket configuration, where the amount of tokens to be removed is based on the amount of the flow and is further based on a classification of the flow. Packet-level devices for traffic regulation are also contemplated.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 31, 2018
    Assignee: Comcast Cable Communications, LLC
    Inventors: Charles L. Compton, Richard M. Woundy, John G. Leddy
  • Publication number: 20170019340
    Abstract: A method of traffic regulation in a packet communication network involves a token bucket associated with a subscriber. Packets arriving at the regulator are handled in accordance with the token bucket configuration. The method involves measuring a demand placed on the network by the subscriber. The token bucket configuration is dynamically adjusted based on the demand. Another method of traffic regulation handles packets arriving at the regulator in accordance with first and second token bucket configurations. The first token bucket regulates packet rate while the second token bucket regulates data rate. Another method of traffic regulation involves handling packets in accordance with a token bucket configuration, where the amount of tokens to be removed is based on the amount of the flow and is further based on a classification of the flow. Packet-level devices for traffic regulation are also contemplated.
    Type: Application
    Filed: March 21, 2016
    Publication date: January 19, 2017
    Inventors: Charles L. Compton, Richard M. Woundy, John G. Leddy
  • Patent number: 9325627
    Abstract: A method of traffic regulation in a packet communication network involves a token bucket associated with a subscriber. Packets arriving at the regulator are handled in accordance with the token bucket configuration. The method involves measuring a demand placed on the network by the subscriber. The token bucket configuration is dynamically adjusted based on the demand. Another method of traffic regulation handles packets arriving at the regulator in accordance with first and second token bucket configurations. The first token bucket regulates packet rate while the second token bucket regulates data rate. Another method of traffic regulation involves handling packets in accordance with a token bucket configuration, where the amount of tokens to be removed is based on the amount of the flow and is further based on a classification of the flow. Packet-level devices for traffic regulation are also contemplated.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: April 26, 2016
    Assignee: Comcast Cable Communications, LLC
    Inventors: Charles L. Compton, Richard M. Woundy, John G. Leddy
  • Publication number: 20120176899
    Abstract: A method of traffic regulation in a packet communication network involves a token bucket associated with a subscriber. Packets arriving at the regulator are handled in accordance with the token bucket configuration. The method involves measuring a demand placed on the network by the subscriber. The token bucket configuration is dynamically adjusted based on the demand. Another method of traffic regulation handles packets arriving at the regulator in accordance with first and second token bucket configurations. The first token bucket regulates packet rate while the second token bucket regulates data rate. Another method of traffic regulation involves handling packets in accordance with a token bucket configuration, where the amount of tokens to be removed is based on the amount of the flow and is further based on a classification of the flow. Packet-level devices for traffic regulation are also contemplated.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 12, 2012
    Applicant: COMCAST CABLE HOLDINGS, LLC
    Inventors: Charles L. Compton, Richard M. Woundy, John G. Leddy
  • Patent number: 8121033
    Abstract: A method of traffic regulation in a packet communication network involves a token bucket associated with a subscriber. Packets arriving at the regulator are handled in accordance with the token bucket configuration. The method involves measuring a demand placed on the network by the subscriber. The token bucket configuration is dynamically adjusted based on the demand. Another method of traffic regulation handles packets arriving at the regulator in accordance with first and second token bucket configurations. The first token bucket regulates packet rate while the second token bucket regulates data rate. Another method of traffic regulation involves handling packets in accordance with a token bucket configuration, where the amount of tokens to be removed is based on the amount of the flow and is further based on a classification of the flow. Packet-level devices for traffic regulation are also contemplated.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: February 21, 2012
    Assignee: Comcast Cable Holdings, LLC
    Inventors: Charles L. Compton, Richard M. Woundy, John G. Leddy
  • Patent number: 7289447
    Abstract: A method of traffic regulation in a packet communication network involves a token bucket associated with a subscriber. Packets arriving at the regulator are handled in accordance with the token bucket configuration. The method further involves measuring a demand placed on the packet communication network by the subscriber. The token bucket configuration for the subscriber is dynamically adjusted based on the demand. Another method of traffic regulation handles packets that arrive at the regulator in accordance with first and second token bucket configurations. The first token bucket regulates packet rate while the second token bucket regulates data rate. Another method of traffic regulation involves handling packets in accordance with a token bucket configuration, where the amount of tokens to be removed is based on the amount of the flow and is further based on a classification of the flow. Packet-level devices for traffic regulation are also contemplated.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: October 30, 2007
    Assignee: Comcast Cable Holdings, LLC
    Inventors: Charles L. Compton, Richard M. Woundy, John G. Leddy
  • Patent number: 7080161
    Abstract: Network architectures and protocols to support enhancements to the decision making process of standard routing protocols are described. Embodiments allow decisions to be exchanged between networks, or autonomous systems, about which internetwork paths have been chosen for outbound traffic. Some embodiments of the invention allow information about the measured performance of internetwork paths to be exchanged between autonomous systems. Embodiments allow additional policy information to be communicated between networks, including but not limited to information about why local policy decisions have been made; requests of policies from remote networks; performance information about particular paths; and informational status. Such information may be exchanged dynamically between networks.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: July 18, 2006
    Assignee: Avaya Technology Corp.
    Inventors: John G. Leddy, Michael A. Lloyd, Sean P. Finn, James G. McGuire, Omar C. Baldonado, Herbert S. Madan
  • Publication number: 20020184393
    Abstract: Network architectures and protocols to support enhancements to the decision making process of standard routing protocols are described. Embodiments allow decisions to be exchanged between networks, or autonomous systems, about which internetwork paths have been chosen for outbound traffic. Some embodiments of the invention allow information about the measured performance of internetwork paths to be exchanged between autonomous systems. Embodiments allow additional policy information to be communicated between networks, including but not limited to information about why local policy decisions have been made; requests of policies from remote networks; performance information about particular paths; and informational status. Such information may be exchanged dynamically between networks.
    Type: Application
    Filed: July 10, 2001
    Publication date: December 5, 2002
    Inventors: John G. Leddy, Michael A. Lloyd, Sean P. Finn, James G. McGuire, Omar C. Baldonado, Herbert S. Madan
  • Patent number: 4885564
    Abstract: A power line carrier communication system for monitoring refrigerated containers which includes a master monitoring unit and a first power line interface which interchange messages in a first format. The first power line interface translates the first format to a second format suitable for power line environment, and messages in the second format are applied to a power line. Remote monitoring units receive the messages from the power line, and they return messages to the power line containing status data relative to refrigerated containers. The second format includes a message starting preamble having a duration and logic level which is not duplicated by normal operation of the apparatus, enhancing the probability of proper message synchronization and reception over noisy power line environments.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: December 5, 1989
    Assignee: Thermo King Corporation
    Inventors: Leonard C. Vercellotti, Arthur A. Anderson, David A. Christiansen, Dannis R. Johnson, Laurence R. Brickner, Robert G. Colclaser III, John G. Leddy
  • Patent number: 4757420
    Abstract: A motor controller system is taught in which an overload relay board utilizes a current monitor which produces an output signal which is related to the current being sensed thereby over a wide range of currents which may vary for instance between 1 and 1,000 amperes. This indicative signal is converted to a DC voltage level which is then provided to the analog-to-digital portion of a microprocessor for being converted to a digital number for being processed by the microprocessor for causing the contacts of the motor controller to open at appropriate current values. The system utilizes an integrating capacitor which samples the output current from the sensor 32 times in succession providing a voltage which is proportional to the line current. This voltage which may exceed the input voltage level of the analog-to-digital converter is nevertheless supplied to the analog-to-digital converter and sampled internally by the microprocessor at double the line cycle time period until the 32 samplings have expired.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: July 12, 1988
    Assignee: Westinghouse Electric Corp.
    Inventors: Gary F. Saletta, Joseph C. Engel, John G. Leddy
  • Patent number: 4720761
    Abstract: An electromagnetic contactor is taught which includes a conduction angle controlled triac or similar gated device which is connected in series circuit relationship with the winding of an electromagnetic solenoid or coil which is responsible for closing the contactor contacts and for keeping them closed. The current flowing through the triac is fed to a microprocessor which digitizes the current and compares it to a stored standard. The conduction angle is then decremented or incremented as necessary to change the conduction angle to cause less or more current to flow per half cycle until the amount of current flowing as sensed on a half-cycle-by-half-cycle basis is equal to the current represented by the stored standard.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: January 19, 1988
    Assignee: Westinghouse Electric Corp.
    Inventors: Gary F. Saletta, Joseph C. Engel, John G. Leddy