Patents by Inventor Gregory J. Barlow

Gregory J. Barlow 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).

  • Publication number: 20220415168
    Abstract: Traffic control systems, signal control systems, and methods of using such systems are disclosed. A real-time adaptive traffic control system includes multiple signal control systems, each associated with a signalized intersection. Each signal control system includes a receiver, a processor, and a transmitter. The receiver receives inflow traffic control information from other signal control systems and information associated with one or more vehicles or devices. The processor generates a signal timing plan based on the information and the inflow traffic control information. The transmitter transmits outflow traffic control information to other signal control systems. A fee or toll may be incurred for receiving the route information associated with a vehicle or device. The result of providing such route information may be better traffic flow for the transmitting vehicle or device and other vehicles or devices resulting from improved information being available to the traffic control system.
    Type: Application
    Filed: September 22, 2020
    Publication date: December 29, 2022
    Applicant: Rapid Flow Technologies, Inc.
    Inventors: Gregory J. Barlow, Stephen F. Smith, Allen Hawkes
  • Patent number: 9830813
    Abstract: Scalable urban traffic control system has been developed to address current challenges and offers a new approach to real-time, adaptive control of traffic signal networks. The methods and system described herein exploit a novel conceptualization of the signal network control problem as a decentralized process, where each intersection in the network independently and asynchronously solves a single-machine scheduling problem in a rolling horizon fashion to allocate green time to its local traffic, and intersections communicate planned outflows to their downstream neighbors to increase visibility of future incoming traffic and achieve coordinated behavior. The novel formulation of the intersection control problem as a single-machine scheduling problem abstracts flows of vehicles into clusters, which enables orders-of-magnitude speedup over previous time-based formulations and is what allows truly real-time (second-by-second) response to changing conditions.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: November 28, 2017
    Assignee: CARNEGIE MELLON UNIVERSITY, a Pennsylvania Non-Profit Corporation
    Inventors: Stephen F. Smith, Gregory J. Barlow, Xiao-Feng Xie
  • Publication number: 20160042641
    Abstract: Scalable urban traffic control system has been developed to address current challenges and offers a new approach to real-time, adaptive control of traffic signal networks. The methods and system described herein exploit a novel conceptualization of the signal network control problem as a decentralized process, where each intersection in the network independently and asynchronously solves a single-machine scheduling problem in a rolling horizon fashion to allocate green time to its local traffic, and intersections communicate planned outflows to their downstream neighbors to increase visibility of future incoming traffic and achieve coordinated behavior. The novel formulation of the intersection control problem as a single-machine scheduling problem abstracts flows of vehicles into clusters, which enables orders-of-magnitude speedup over previous time-based formulations and is what allows truly real-time (second-by-second) response to changing conditions.
    Type: Application
    Filed: October 12, 2015
    Publication date: February 11, 2016
    Applicant: CARNEGIE MELLON UNIVERSITY, a Pennsylvania Non-Profit Corporation
    Inventors: Stephen F. Smith, Gregory J. Barlow, Xiao-Feng Xie
  • Patent number: 9159229
    Abstract: Scalable urban traffic control system has been developed to address current challenges and offers a new approach to real-time, adaptive control of traffic signal networks. The methods and system described herein exploit a novel conceptualization of the signal network control problem as a decentralized process, where each intersection in the network independently and asynchronously solves a single-machine scheduling problem in a rolling horizon fashion to allocate green time to its local traffic, and intersections communicate planned outflows to their downstream neighbors to increase visibility of future incoming traffic and achieve coordinated behavior. The novel formulation of the intersection control problem as a single-machine scheduling problem abstracts flows of vehicles into clusters, which enables orders-of-magnitude speedup over previous time-based formulations and is what allows truly real-time (second-by-second) response to changing conditions.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: October 13, 2015
    Assignee: Carnegie Mellon University, a Pennsylvania Non-Profit Corporation
    Inventors: Xiao-Feng Xie, Stephen F. Smith, Gregory J. Barlow
  • Publication number: 20140368358
    Abstract: Scalable urban traffic control system has been developed to address current challenges and offers a new approach to real-time, adaptive control of traffic signal networks. The methods and system described herein exploit a novel conceptualization of the signal network control problem as a decentralized process, where each intersection in the network independently and asynchronously solves a single-machine scheduling problem in a rolling horizon fashion to allocate green time to its local traffic, and intersections communicate planned outflows to their downstream neighbors to increase visibility of future incoming traffic and achieve coordinated behavior. The novel formulation of the intersection control problem as a single-machine scheduling problem abstracts flows of vehicles into clusters, which enables orders-of-magnitude speedup over previous time-based formulations and is what allows truly real-time (second-by-second) response to changing conditions.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Applicant: CARNEGIE MELLON UNIVERSITY, a Pennsylvania Non-Profit Corporation
    Inventors: Xiao-Feng Xie, Stephen F. Smith, Gregory J. Barlow