Patents by Inventor Mohamed Youssef

Mohamed Youssef 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: 9671502
    Abstract: Methods, systems, and portable devices capable of adaptive synthetic positioning while in a dead zone are described. In one method, when a portable device having a Global Navigational Satellite System (GNSS) receiver and a dead zone database enters a dead zone, it determines whether the dead zone database has a record for the dead zone. If it does, it retrieves parameters corresponding to the dead zone from the database and calculates synthetic position solutions using the retrieved parameters while in the dead zone. The portable device may also use the synthetic position solutions to help calculate position solutions when exiting the dead zone. If a dead zone database record does not exist, the portable device determines parameters for calculating synthetic position solutions in the dead zone and a new dead zone database record indicating a set of parameters based on the determined set of parameters is created.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: June 6, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Mohamed Youssef, Andi Jakupi, Bruce McCullough, William Stewart
  • Patent number: 9654930
    Abstract: A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 16, 2017
    Assignee: Rx Networks Inc.
    Inventors: Mohamed Youssef, Guylain Roy-Machabee, Ashkan Izadpanah
  • Publication number: 20170006423
    Abstract: A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format.
    Type: Application
    Filed: June 29, 2016
    Publication date: January 5, 2017
    Inventors: Mohamed YOUSSEF, Guylain ROY-MACHABEE, Ashkan IZADPANAH
  • Patent number: 9414196
    Abstract: A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical, area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: August 9, 2016
    Assignee: RX NETWORKS INC.
    Inventors: Mohamed Youssef, Guylain Roy-Machabee, Ashkan Izadpanah
  • Publication number: 20160227298
    Abstract: A method may include providing one or more telemetry transmission systems, the one or more transmission systems comprising one or more receivers and one or more transmitters. The method may also include transmitting a first synchronization sequence from the one or more telemetry transmission systems, the first synchronization sequence transmitted in a first channel, and the first synchronization sequence being at least a portion of a first telemetry signal. In addition, the method may include transmitting a second synchronization sequence the one or more telemetry transmission systems, the second synchronization sequence transmitted in a second channel, and the second synchronization sequence being at least a portion of a second telemetry signal. The first and second synchronization sequences may be transmitted simultaneously or at a predetermined time difference.
    Type: Application
    Filed: January 30, 2016
    Publication date: August 4, 2016
    Inventors: Matthew WHITE, Timothy WHITACRE, Brian GLEASON, MOHAMED YOUSSEF
  • Publication number: 20160195621
    Abstract: Methods, systems, and portable devices capable of adaptive synthetic positioning while in a dead zone are described. In one method, when a portable device having a Global Navigational Satellite System (GNSS) receiver and a dead zone database enters a dead zone, it determines whether the dead zone database has a record for the dead zone. If it does, it retrieves parameters corresponding to the dead zone from the database and calculates synthetic position solutions using the retrieved parameters while in the dead zone. The portable device may also use the synthetic position solutions to help calculate position solutions when exiting the dead zone. If a dead zone database record does not exist, the portable device determines parameters for calculating synthetic position solutions in the dead zone and a new dead zone database record indicating a set of parameters based on the determined set of parameters is created.
    Type: Application
    Filed: August 6, 2015
    Publication date: July 7, 2016
    Inventors: Mohamed YOUSSEF, Andi JAKUPI, Bruce MCCULLOUGH, William STEWART
  • Patent number: 9287921
    Abstract: A method for soft frame synchronization in a navigational receiver is provided. A distance between bits of a sync pattern received by the navigational receiver and a known sync pattern is computed. A probability of detection value for the received sync pattern based on the distance is assigned. A confidence level for the received sync pattern using the probability of detection value is computed. The confidence level is compared with a confidence threshold. If the confidence level is greater than or equal to the confidence threshold, the confidence level of the received sync pattern is updated to generate a credibility of the sync pattern. The credibility of the received sync pattern is compared with a predetermined credibility value and, if the credibility of the received sync pattern is greater than or equal to the predetermined credibility value, synchronization of the navigational receiver is performed using the received sync pattern.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: March 15, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Mohamed Youssef, Bruce McCullough, Steven Gronemeyer
  • Patent number: 9262487
    Abstract: Methods, systems, and apparatuses for a portable device capable of receiving satellite navigational system signals to retrieve visibility mask information corresponding to the portable device's current location and/or trajectory are described.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: February 16, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Mohamed Youssef, Andi Jakupi, Bruce McCullough, Steven Gronemeyer
  • Publication number: 20150345287
    Abstract: A method for transmitting data from a MWD system at the BHA of a drill string may include transmitting the data in a MWD signal from the MWD system. The MWD signal may be modulated at a position closer to the surface onto a mud pulse modulated signal. The mud pulse modulated signal may be generated by a downhole friction reducing device. The downhole friction reducing device may include a mud motor. The mud motor may create pressure pulses based on its speed of rotation. The downhole friction reducing device may include a modulating valve. The modulating valve may be electromechanically or mechanically operated. The modulated signal may be detected at the surface by a receiver using one or more pressure or flow sensors. The receiver may use one or more harmonics of the modulated signal to receive the data.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 3, 2015
    Inventors: Matthew A. White, Tim Whitacre, Brett Van Steenwyk, Mohamed Youssef
  • Patent number: 9161328
    Abstract: Disclosed system and method enable a location-unaware device to know its approximate location by wirelessly near-field coupling it to a geo-proximate location-aware device such as a Global Navigation Satellite System—(GNSS)-enabled mobile phone. The geo-location data are conveyed in accordance with a predefined signaling protocol. Request and response mechanisms within the devices take the form of predefined data packets that convey geo-location and the devices' unique identification (ID) information.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Mohamed Youssef, Bruce McCullough, Andi Jakupi
  • Publication number: 20150219769
    Abstract: A method of determining a position of a GNSS receiver includes: receiving, at the GNSS receiver, information from at least two GNSS satellites and an estimated location area from a non-GNSS positioning application, determining candidate pseudoranges corresponding to candidate correlation peaks determined based on the information received from the at least two GNSS satellites; determining possible positions of the GNSS receiver using the candidate pseudoranges and the estimated location area; determining a best possible position of the GNSS receiver from the possible positions; and setting the best possible position as the position of the GNSS receiver; wherein when multiple candidate correlation peaks corresponding to one of the at least two GNSS satellites are determined, the estimated location area is usable to reduce the number of candidate correlation peaks prior to candidate pseudoranges being determined.
    Type: Application
    Filed: April 17, 2015
    Publication date: August 6, 2015
    Inventors: Mohamed Youssef, Ashkan Izadpanah, Muhammad Haris Afzal, Behnam Aminian
  • Publication number: 20150124856
    Abstract: A method for soft frame synchronization in a navigational receiver is provided. A distance between bits of a sync pattern received by the navigational receiver and a known sync pattern is computed. A probability of detection value for the received sync pattern based on the distance is assigned. A confidence level for the received sync pattern using the probability of detection value is computed. The confidence level is compared with a confidence threshold. If the confidence level is greater than or equal to the confidence threshold, the confidence level of the received sync pattern is updated to generate a credibility of the sync pattern. The credibility of the received sync pattern is compared with a predetermined credibility value and, if the credibility of the received sync pattern is greater than or equal to the predetermined credibility value, synchronization of the navigational receiver is performed using the received sync pattern.
    Type: Application
    Filed: August 12, 2014
    Publication date: May 7, 2015
    Inventors: Mohamed YOUSSEF, Bruce McCullough, Steven Gronemeyer
  • Patent number: 9017605
    Abstract: A nickel-base superalloy is characterized by the following chemical composition (details in % by weight): 7.7-8.3 Cr, 5.0-5.25 Co, 2.0-2.1 Mo, 7.8-8.3 W, 5.8-6.1 Ta, 4.9-5.1 Al, 1.0-1.5 Ti, 1.0-2.0 Re, 0.11-0.15 Si, 0.1-0.7 Hf, 0-0.5 Nb, 0.02-0.17 C, 50-400 ppm B, remainder Ni and production-related impurities. The alloy is distinguished by a very high resistance to oxidation, resistance to corrosion and good creep properties at high temperatures.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 28, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Mohamed Youssef Nazmy, Andreas Kuenzler, Claus Paul Gerdes
  • Publication number: 20150032371
    Abstract: Methods, systems, and apparatuses for a portable device capable of receiving satellite navigational system signals to retrieve visibility mask information corresponding to the portable device's current location and/or trajectory are described.
    Type: Application
    Filed: November 4, 2013
    Publication date: January 29, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Mohamed Youssef, Andi Jakupi, Bruce McCullough, Steven Gronemeyer
  • Patent number: 8906296
    Abstract: The present invention relates to an oxidation resistant Nickel alloy, characterized in the following chemical composition (in % by weight): 4-7 Cr, 4-5 Si, 0.1-0.2 Y, 0.1-0.2 Mg, 0.1-0.2 Hf, remainder Ni and unavoidable impurities. A preferred embodiment has the following chemical composition (in % by weight): 6 Cr, 4.4 Si, 0.1 Y, 0.15 Mg, 0.1 Hf, remainder Ni and unavoidable impurities. This alloy has an improved oxidation resistance and good creep properties at high temperatures.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: December 9, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Mohamed Youssef Nazmy, Andreas Künzler, Hanspeter Zinn, Giuseppe Bandiera
  • Publication number: 20140349673
    Abstract: Disclosed system and method enable a location-unaware device to know its approximate location by wirelessly near-field coupling it to a geo-proximate location-aware device such as a Global Navigation Satellite System—(GNSS)-enabled mobile phone. The geo-location data are conveyed in accordance with a predefined signaling protocol. Request and response mechanisms within the devices take the form of predefined data packets that convey geo-location and the devices' unique identification (ID) information.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Mohamed YOUSSEF, Bruce McCULLOUGH, Andi JAKUPI
  • Publication number: 20140342755
    Abstract: A method of determining a location of a mobile device includes: detecting, at the mobile device, at least one Radio Frequency transmitter; receiving information associated with a number of Radio Frequency transmitters located within a geographical, area, the number of Radio Frequency transmitters being a subset of all Radio Frequency transmitters located within the geographical area, the information being decodable to provide global locations and identifiers of the number of Radio Frequency transmitters; comparing an identifier associated with the at least one detected Radio Frequency transmitter with the global locations and identifiers of the number of Radio Frequency transmitters; and determining the location of the mobile device within the geographical area; wherein the information is received in a reduced format.
    Type: Application
    Filed: September 20, 2012
    Publication date: November 20, 2014
    Applicant: RX Networks Inc.
    Inventors: Mohamed Youssef, Guylain Roy-Machabee, Ashkan Izadpanah
  • Patent number: 8798822
    Abstract: An onboard electrical junction box. The onboard electrical junction box comprises an auto-change-over switch adapted to acquire: a first state wherein power is supplied to the electrical system from a power rail via at least one onboard power collector device; and a second state wherein power is supplied to the electrical system from a removable shore power source, wherein during operation in the second state, the at least one onboard power collector device is isolated from the power supplied by the removable shore power source. The onboard electrical junction box also comprises a switch control module in electrical communication with the auto-change-over switch for causing the auto-change-over switch to acquire the second state upon detection that: the removable shore power source has established an electrical connection with the onboard electrical junction box; and the electrical system of the vehicle is receiving power below a predetermined threshold.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 5, 2014
    Assignee: Bombardier Transportation GmbH
    Inventors: Lech Adamin, Daniel Joyce, Mohamed Youssef
  • Patent number: 8792908
    Abstract: A method and apparatus for determining the location of a device capable of receiving/transmitting wireless signals from/to reference stations is provided, for example providing wireless signals in the form of range information to the device; determining a region or area surrounding each reference station, wherein regions intersect to form intersecting spaces; defining the intersecting spaces to delineate a device location search space and determining device locations within the search space; determining combinations of said device locations, and using a distribution analysis test to examine a skewness value of each combination; detecting and selecting the combinations of device positions that result in a minimum skewness value or simply a combination that provides skewness value less than a pre-defined minimum threshold value; and utilizing the detected and selected combinations to determine a refined final position of the device.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: July 29, 2014
    Inventors: Mohamed Youssef, Naser El-Sheimy, Michel Fattouche
  • Publication number: 20140050609
    Abstract: The present invention relates to an oxidation resistant Nickel alloy, characterized in the following chemical composition (in % by weight): 4-7 Cr, 4-5 Si, 0.1-0.2 Y, 0.1-0.2 Mg, 0.1-0.2 Hf, remainder Ni and unavoidable impurities. A preferred embodiment has the following chemical composition (in % by weight): 6 Cr, 4.4 Si, 0.1 Y, 0.15 Mg, 0.1 Hf, remainder Ni and unavoidable impurities. This alloy has an improved oxidation resistance, good creep properties at high temperatures and.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 20, 2014
    Applicant: ALSTOM Technology Ltd
    Inventors: Mohamed Youssef NAZMY, Andreas Künzler, Hanspeter Zinn, Giuseppe Bandiera