Patents by Inventor Terence Douglas Macaulay

Terence Douglas Macaulay 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).

  • Mini-map-matching for navigation systems
    Patent number: 9075141
    Abstract: The present invention uses a map database which is created with the view of optimization in terms of size and complexity, so that it can be easily embedded into a navigation chip. The optimized map database is referred to as a “mini-map” database. The mini-map database easily integrates with the position calculation routine. The algorithm for position calculation includes a map-matching component, which is referred to as the “mini-map-matching” (MMM) algorithm, which is implemented on the navigation chip. Application of the present invention includes any navigation system for vehicles and/or pedestrians. The navigation system may include an inertial sensor, such as a dead-reckoning (DR) sensor, for further improvement in calculated positional accuracy when satellite signals are degraded due to environmental factors.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: July 7, 2015
    Assignee: CAMBRIDGE SILICON RADIO LIMITED
    Inventors: Qutub Salman Syed, Jaime B. Colley, Stefan Witanis, Terence Douglas Macaulay
  • Mini-Map-Matching for Navigation Systems
    Publication number: 20130151146
    Abstract: The present invention uses a map database which is created with the view of optimization in terms of size and complexity, so that it can be easily embedded into a navigation chip. The optimized map database is referred to as a “mini-map” database. The mini-map database easily integrates with the position calculation routine. The algorithm for position calculation includes a map-matching component, which is referred to as the “mini-map-matching” (MMM) algorithm, which is implemented on the navigation chip. Application of the present invention includes any navigation system for vehicles and/or pedestrians. The navigation system may include an inertial sensor, such as a dead-reckoning (DR) sensor, for further improvement in calculated positional accuracy when satellite signals are degraded due to environmental factors.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 13, 2013
    Applicant: CSR Technology Inc.
    Inventors: Qutub Salman Syed, Jaime B. Colley, Stefan Witanis, Terence Douglas Macaulay