Patents by Inventor S. Alireza FAYAZI

S. Alireza FAYAZI 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).

  • Systems and methods for estimating traffic signal information
    Patent number: 9697729
    Abstract: Traffic signal information is estimated based on positioning system data obtained from a plurality of vehicles. Each data set includes the position and the velocity of a vehicle as functions of time. For an intersection having a traffic signal, an average acceleration of the vehicles when leaving the intersection is estimated, and an average deceleration of the vehicles when approaching the intersection is estimated. For each of a subset of the vehicles, a stop duration at the intersection is estimated based on the average acceleration, the average deceleration, and the positioning system data for the respective vehicle. A duration of a red phase of the traffic signal is estimated based on the stop duration of each of the subset of the vehicles.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: July 4, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Ardalan Vahidi, S. Alireza Fayazi, Grant Mahler, Andreas Winckler
  • Systems and Methods for Estimating Traffic Signal Information
    Publication number: 20160098924
    Abstract: Traffic signal information is estimated based on positioning system data obtained from a plurality of vehicles. Each data set includes the position and the velocity of a vehicle as functions of time. For an intersection having a traffic signal, an average acceleration of the vehicles when leaving the intersection is estimated, and an average deceleration of the vehicles when approaching the intersection is estimated. For each of a subset of the vehicles, a stop duration at the intersection is estimated based on the average acceleration, the average deceleration, and the positioning system data for the respective vehicle. A duration of a red phase of the traffic signal is estimated based on the stop duration of each of the subset of the vehicles.
    Type: Application
    Filed: October 5, 2015
    Publication date: April 7, 2016
    Inventors: Ardalan VAHIDI, S. Alireza FAYAZI, Grant MAHLER, Andreas WINCKLER
  • Systems and methods for estimating traffic signal information
    Patent number: 9183743
    Abstract: Systems and methods for estimating traffic signal information are provided. According to one aspect, positioning system data is obtained from a plurality of vehicles. Each data set includes the position and the velocity of a vehicle as functions of time. For an intersection having a traffic signal, an average acceleration of the vehicles when leaving the intersection is estimated, and an average deceleration of the vehicles when approaching the intersection is estimated. For each of a subset of the vehicles, a stop duration at the intersection is estimated based on the average acceleration, the average deceleration, and the positioning system data for the respective vehicle. A duration of a red phase of the traffic signal is estimated based on the stop duration of each of the subset of the vehicles.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: November 10, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Ardalan Vahidi, S. Alireza Fayazi, Grant Mahler, Andreas Winckler
  • SYSTEMS AND METHODS FOR ESTIMATING TRAFFIC SIGNAL INFORMATION
    Publication number: 20150120175
    Abstract: Systems and methods for estimating traffic signal information are provided. According to one aspect, positioning system data is obtained from a plurality of vehicles. Each data set includes the position and the velocity of a vehicle as functions of time. For an intersection having a traffic signal, an average acceleration of the vehicles when leaving the intersection is estimated, and an average deceleration of the vehicles when approaching the intersection is estimated. For each of a subset of the vehicles, a stop duration at the intersection is estimated based on the average acceleration, the average deceleration, and the positioning system data for the respective vehicle. A duration of a red phase of the traffic signal is estimated based on the stop duration of each of the subset of the vehicles.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Ardalan VAHIDI, S. Alireza FAYAZI, Grant MAHLER, Andreas WINCKLER