Patents by Inventor Ahmed Sakr

Ahmed Sakr 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: 20250112372
    Abstract: Dual-polarized antennas with ring balun excitation are disclosed. In certain embodiments, a dual-polarized antenna includes an antenna element and a ring balun for providing excitation of the antenna element. The ring balun includes conductive segments electrically connected in a ring, a first input port that receives a first single-ended RF signal of a first signal polarization, and a second input port that receives a second single-ended RF signal of a second signal polarization. The ring balun further includes a first output port and a second output port that collectively provide a first differential RF signal of the first signal polarization to the antenna element, and a third output port and a fourth output port that collectively provide a second differential RF signal of the second signal polarization to the antenna element.
    Type: Application
    Filed: May 22, 2024
    Publication date: April 3, 2025
    Inventors: Ahmed Sakr, Islam A. Eshrah
  • Patent number: 12184085
    Abstract: A system for wireless power transfer (WPT) is described. The WPT system may be used for charging of electric vehicles or other mobile platforms. The WPT system includes a gap waveguide base including a conductive waveguiding structure and a bandgap structure along at least the lateral sides of the waveguiding structure. The WPT system also includes a charging plate separate from the gap waveguide base. The charging plate includes a conductive plate having a receiving structure for receiving the electromagnetic field from the gap waveguide base through an air gap. The disclosed WPT system enables propagation of an electromagnetic field through the air gap, including electromagnetic fields in the very high frequency (VHF) band.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: December 31, 2024
    Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.
    Inventors: Walid Dyab, Ahmed Sakr, Mourad Ibrahim, Intikhab Hussain, Ke Wu
  • Publication number: 20240367678
    Abstract: A local computing device of a vehicle receives a stream of sensor data from one or sensors of the vehicle. If a remote computing device is estimated to process the stream of sensor data and provide driving instructions within a maximum acceptable wait time, then the local computing device sends a request to the remote computing device to process the stream of sensor data and provide driving instructions. If the processing is estimated to meet or exceed the maximum acceptable wait time, then the local computing device uses a locally executed neural network to determine driving instructions. The driving instructions received either from the remote computing or from the local neural network are sent to an autonomous driving system of the vehicle. Offloading processing the sensor data to the remote computing device may result in the local computing device consuming less energy.
    Type: Application
    Filed: April 30, 2024
    Publication date: November 7, 2024
    Applicant: University of California Irvine
    Inventors: Mohammad Abdullah Al Faruque, Yasser Shoukry Ahmed SAKR, Mohanad Mohamed Abdelmagid Abdelkhalek Odema, James Robert FERLEZ
  • Patent number: 12107330
    Abstract: Apparatus and methods for circularly polarized antenna arrays are disclosed. In certain embodiments, a dual-band dual-polarized antenna array is provided. The antenna array uses separate frequency bands for transmit and receive signals, and supports a right hand circular polarization (RHCP) and a left hand circular polarization (LHCP). The antenna array can be formed on a circuit board to which a beamforming integrated circuit (IC) can be attached. For example, the antennary array can formed form a low-cost printed circuit board (PCB) stack-up construction. The antenna array can provide circular polarization without needing a polarizer or coupler. Furthermore, the antenna array achieves good isolation and axial ratio under scan.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: October 1, 2024
    Assignee: Analog Devices International Unlimited Company
    Inventors: Ahmed Sakr, Islam A. Eshrah
  • Publication number: 20240275058
    Abstract: Apparatus and methods for circularly polarized antenna arrays are disclosed. In certain embodiments, a dual-band dual-polarized antenna array is provided. The antenna array uses separate frequency bands for transmit and receive signals, and supports a right hand circular polarization (RHCP) and a left hand circular polarization (LHCP). The antenna array can be formed on a circuit board to which a beamforming integrated circuit (IC) can be attached. For example, the antennary array can formed form a low-cost printed circuit board (PCB) stack-up construction. The antenna array can provide circular polarization without needing a polarizer or coupler. Furthermore, the antenna array achieves good isolation and axial ratio under scan.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 15, 2024
    Inventors: Ahmed Sakr, Islam A. Eshrah
  • Patent number: 11776390
    Abstract: The disclosure includes embodiments for extracting roadway features from Vehicle-to-Everything (V2X) data to build a map having an improved accuracy. In some embodiments, a method for a connected vehicle includes transmitting, via a communication unit of the connected vehicle, a V2X message that includes V2X data. The method includes receiving, via the communication unit, map data describing a map that depicts one or more roadway features in a roadway region of the connected vehicle. The one or more roadway features are generated through a vehicle clustering analysis based on an aggregation of the V2X data in the roadway region so that an accuracy of the map is improved. The method includes modifying an operation of a vehicle control system of the connected vehicle based on the map data to improve the operation of the connected vehicle by reducing a risk of a collision involving the connected vehicle.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: October 3, 2023
    Inventor: Ahmed Sakr
  • Patent number: 11709258
    Abstract: The disclosure includes embodiments for a location data correction service for connected vehicles. A method includes receiving, by an operation center via a serverless ad-hoc vehicular network, a first wireless message that includes legacy location data that describes a geographic location of a legacy vehicle. The method includes causing a rich sensor set included in the operation center to record sensor data describing the geographic locations of objects in a roadway environment. The method includes determining correction data that describes a variance between the geographic location of the legacy vehicle as described by the sensor data and the legacy location data. The method includes transmitting a second wireless message to the legacy vehicle, wherein the second wireless message includes the correction data so that the legacy vehicle receives a benefit by correcting the legacy location data to minimize the variance.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: July 25, 2023
    Inventors: Rui Guo, Mahmoud Ashour, Ahmed Sakr, Bin Cheng, Hongsheng Lu, Prashant Tiwari
  • Publication number: 20230155270
    Abstract: A two-port dyadic radial coupler for RF communications between PCB layers is disclosed. The coupler includes an input port, an impedance matching transformer, a coaxial conductor, and at least one coupled port. The input or coupled port has an at least partially annular conducting strip axially aligned with the coaxial conductor, causing radial coupling excitation by an RF signal to couple the signal between the input port and coupled port. The coupler is configured for coupling of RF signals within a select frequency range at 0 dB attenuation. In other embodiments, the coupler is configured for frequency-selective coupling to attenuate undesired frequencies. In various embodiments, the RF signal is parasitically coupled to a plurality of coupled ports on intermediate layers of the PCB. In additional embodiments, the coupled port may be left disconnected from additional circuit elements, causing the coupler to act as an antenna.
    Type: Application
    Filed: November 14, 2022
    Publication date: May 18, 2023
    Inventors: Ahmed Sakr, Islam A. Eshrah
  • Publication number: 20220216729
    Abstract: A system for wireless power transfer (WPT) is described. The WPT system may be used for charging of electric vehicles or other mobile platforms. The WPT system includes a gap waveguide base including a conductive waveguiding structure and a bandgap structure along at least the lateral sides of the waveguiding structure. The WPT system also includes a charging plate separate from the gap waveguide base. The charging plate includes a conductive plate having a receiving structure for receiving the electromagnetic field from the gap waveguide base through an air gap. The disclosed WPT system enables propagation of an electromagnetic field through the air gap, including electromagnetic fields in the very high frequency (VHF) band.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 7, 2022
    Inventors: Walid DYAB, Ahmed SAKR, Mourad IBRAHIM, Intikhab HUSSAIN, Ke WU
  • Publication number: 20220026566
    Abstract: The disclosure includes embodiments for a location data correction service for connected vehicles. A method includes receiving, by an operation center via a serverless ad-hoc vehicular network, a first wireless message that includes legacy location data that describes a geographic location of a legacy vehicle. The method includes causing a rich sensor set included in the operation center to record sensor data describing the geographic locations of objects in a roadway environment. The method includes determining correction data that describes a variance between the geographic location of the legacy vehicle as described by the sensor data and the legacy location data. The method includes transmitting a second wireless message to the legacy vehicle, wherein the second wireless message includes the correction data so that the legacy vehicle receives a benefit by correcting the legacy location data to minimize the variance.
    Type: Application
    Filed: July 23, 2020
    Publication date: January 27, 2022
    Inventors: Rui Guo, Mahmoud Ashour, Ahmed Sakr, Bin Cheng, Hongsheng Lu, Prashant Tiwari
  • Patent number: 11234160
    Abstract: The disclosure includes embodiments a first connected vehicle to transmit a set of wireless communications based on a communication plan generated by a cloud server by observing a set of digital twin simulations. A method includes wirelessly transmitting, by the first connected vehicle that is included in a set of connected vehicles, first context data that describes a context of the first connected vehicle and a set of wireless communications to be sent by the first connected vehicle. The method includes receiving plan data that describes a communication plan for transmitting the set of wireless communications, wherein the set of digital twin simulations are executed by the cloud server based at least in part on the first context data and a set of other context data provided by the set of connected vehicles. The method includes wirelessly transmitting the set of wireless communications in compliance with the communication plan.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: January 25, 2022
    Inventors: Kyungtae Han, Ahmed Sakr, Prashant Tiwari
  • Patent number: 11041736
    Abstract: The disclosure includes embodiments for generating a real-time high-definition (HD) map for an ego vehicle using wireless vehicle data of a remote vehicle. In some embodiments, a method includes receiving a V2X wireless message which includes remote GPS data and remote road parameter data of the remote vehicle. The method includes retrieving ego GPS data of the ego vehicle. The method includes generating ego road parameter data describing an initial estimate of a geometry of a road on which the ego vehicle is located. The method includes fusing the ego road parameter data and the remote road parameter data to form fused road parameter data which describes an improved estimate of the geometry of the road that is more accurate than the initial estimate. The method includes generating a real-time HD map based on the remote GPS data, the ego GPS data, and the fused road parameter data.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: June 22, 2021
    Inventors: Ahmed Sakr, Gaurav Bansal
  • Patent number: 11023753
    Abstract: System, methods, and other embodiments described herein relate to detecting a lane change of a target vehicle ahead of an ego vehicle. In one approach, a method includes receiving communications from a target vehicle specifying state information about the target vehicle. The method includes determining a location of a first decision point at a first distance ahead of an ego vehicle and acquiring sensor data about the target vehicle. The method includes determining motion information about the target vehicle based on the sensor data. The motion information includes positions that the target vehicle occupied relative to the ego vehicle. The method includes storing the state information and motion information for a first amount of time, and determining whether the target vehicle has changed lanes based on the state information and the motion information that has been stored once the ego vehicle has reached the first decision position.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 1, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Vladimeros Vladimerou, Miles J. Johnson, Ahmed Sakr, Gaurav Bansal
  • Publication number: 20210160731
    Abstract: The disclosure includes embodiments a first connected vehicle to transmit a set of wireless communications based on a communication plan generated by a cloud server by observing a set of digital twin simulations. A method includes wirelessly transmitting, by the first connected vehicle that is included in a set of connected vehicles, first context data that describes a context of the first connected vehicle and a set of wireless communications to be sent by the first connected vehicle. The method includes receiving plan data that describes a communication plan for transmitting the set of wireless communications, wherein the set of digital twin simulations are executed by the cloud server based at least in part on the first context data and a set of other context data provided by the set of connected vehicles. The method includes wirelessly transmitting the set of wireless communications in compliance with the communication plan.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 27, 2021
    Inventors: Kyungtae Han, Ahmed Sakr, Prashant Tiwari
  • Publication number: 20200342750
    Abstract: The disclosure includes embodiments for extracting roadway features from Vehicle-to-Everything (V2X) data to build a map having an improved accuracy. In some embodiments, a method for a connected vehicle includes transmitting, via a communication unit of the connected vehicle, a V2X message that includes V2X data. The method includes receiving, via the communication unit, map data describing a map that depicts one or more roadway features in a roadway region of the connected vehicle. The one or more roadway features are generated through a vehicle clustering analysis based on an aggregation of the V2X data in the roadway region so that an accuracy of the map is improved. The method includes modifying an operation of a vehicle control system of the connected vehicle based on the map data to improve the operation of the connected vehicle by reducing a risk of a collision involving the connected vehicle.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 29, 2020
    Inventor: Ahmed SAKR
  • Patent number: 10782704
    Abstract: One or more roadway features can be determined based on information received from one or more vehicles traveling on a roadway. A data packet can be received from a remote vehicle. The data packet can include data corresponding to locations and headings of the remote vehicle. A path history for the remote vehicle can be determined based on the data packet. The path history can include data points corresponding to a plurality of locations and headings for the remote vehicle. A geometry for a portion of the roadway preceding the remote vehicle can be determined using the path history. The determined geometry of the roadway can be used to determine a driving maneuver for a vehicle and/or to verify a map.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: September 22, 2020
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Vladimeros Vladimerou, Miles J. Johnson, Guarav Bansal, Ahmed Sakr
  • Publication number: 20200272838
    Abstract: System, methods, and other embodiments described herein relate to detecting a lane change of a target vehicle ahead of an ego vehicle. In one approach, a method includes receiving communications from a target vehicle specifying state information about the target vehicle. The method includes determining a location of a first decision point at a first distance ahead of an ego vehicle and acquiring sensor data about the target vehicle. The method includes determining motion information about the target vehicle based on the sensor data. The motion information includes positions that the target vehicle occupied relative to the ego vehicle. The method includes storing the state information and motion information for a first amount of time, and determining whether the target vehicle has changed lanes based on the state information and the motion information that has been stored once the ego vehicle has reached the first decision position.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 27, 2020
    Inventors: Vladimeros Vladimerou, Miles J. Johnson, Ahmed Sakr, Gaurav Bansal
  • Publication number: 20200096359
    Abstract: The disclosure includes embodiments for generating a real-time high-definition (HD) map for an ego vehicle using wireless vehicle data of a remote vehicle. In some embodiments, a method includes receiving a V2X wireless message which includes remote GPS data and remote road parameter data of the remote vehicle. The method includes retrieving ego GPS data of the ego vehicle. The method includes generating ego road parameter data describing an initial estimate of a geometry of a road on which the ego vehicle is located. The method includes fusing the ego road parameter data and the remote road parameter data to form fused road parameter data which describes an improved estimate of the geometry of the road that is more accurate than the initial estimate. The method includes generating a real-time HD map based on the remote GPS data, the ego GPS data, and the fused road parameter data.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 26, 2020
    Inventors: Ahmed Sakr, Gaurav Bansal
  • Publication number: 20180217612
    Abstract: One or more roadway features can be determined based on information received from one or more vehicles traveling on a roadway. A data packet can be received from a remote vehicle. The data packet can include data corresponding to locations and headings of the remote vehicle. A path history for the remote vehicle can be determined based on the data packet. The path history can include data points corresponding to a plurality of locations and headings for the remote vehicle. A geometry for a portion of the roadway preceding the remote vehicle can be determined using the path history. The determined geometry of the roadway can be used to determine a driving maneuver for a vehicle and/or to verify a map.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 2, 2018
    Inventors: Vladimeros Vladimerou, Miles J. Johnson, Gaurav Bansal, Ahmed Sakr