The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2000
Filed:
Jul. 06, 1998
J Stanley Kriz, Fairfax, VA (US);
Patrick K Garner, Fairfax, VA (US);
Resolution Displays, Inc., Fairfax, VA (US);
Abstract
Apparatus and methods for rapid and improved accuracy acoustic position determination comprising simultaneous and mutually distinguishable wide-band acoustic transmissions emitted from a plurality of spatially diverse transmitters and reception thereof by one or more receivers. The receivers identify the transmitters by directly (non-demodulated) correlating the received signal against stored or regenerated replicas of the transmitted signals. The location of the receiver is determined relative to the identified transmitter locations according to the measured times-of-flight from the identified transmitters to the receiver. Further embodiments of the method and apparatus of the present invention provides yaw, pitch and roll determination with a plurality of co-located receivers, and an extended and enhanced operating area.