Patents by Inventor Ahmed Ali Mohamed

Ahmed Ali Mohamed 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: 10158324
    Abstract: Switching interference is a primary artifact which affects the accuracy of arc detectors. To address switching interference, conventional arc detectors employ computationally intensive techniques which are often designed specifically for a target application. Thus, conventional arc detectors require a significant amount of hardware to accurately detect arc faults, which can increase costs of the power systems and prohibit wide deployment of arc detectors. With improved signal processing, a unique method for arc detection can accurately detect arc faults efficiently while tolerate switching interference from an inverter of the power system. Specifically, the method provides accurate but efficient arc detection by using a small Fast Fourier Transform with coherent sampling that is accomplished with a common clock generator in combination with signal conditioning. The overall system implementing the method is also programmable to suit a variety of target applications.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: December 18, 2018
    Assignee: ANALOG DEVICES GLOBAL UNLIMITED COMPANY
    Inventors: Gordon Cheung, John A. Hayden, Hans Brueggemann, Ahmed Ali Mohamed
  • Publication number: 20150378939
    Abstract: A memory mechanism for providing semaphore functionality in a multi-master processing environment is disclosed. An exemplary memory unit includes a memory controller that manages access to a shared memory. The memory controller includes a semaphore context monitor associated with each master having access to the shared memory. A semaphore context monitor associated with a semaphore-capable master is activated by the semaphore-capable master (for example, by exclusive request signal(s) received by memory controller from semaphore-capable master). A semaphore context monitor associated with a non-semaphore-capable master is activated by the memory controller (for example, by exclusive request signal(s) generated by the memory controller).
    Type: Application
    Filed: June 27, 2014
    Publication date: December 31, 2015
    Applicant: ANALOG DEVICES, INC.
    Inventor: Ahmed Ali Mohamed