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:
Mar. 02, 1999
Filed:
Jun. 28, 1996
Applicant:
Inventors:
Gregory Reid Lee, Torrance, CA (US);
Yie-Ming Chen, Rancho Palos Verdes, CA (US);
Assignee:
Northrop Grumman Corporation, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; G08G / ; G08G / ;
U.S. Cl.
CPC ...
701117 ; 701118 ; 701119 ; 367135 ; 340943 ;
Abstract
Traffic is monitored in individual lanes of a roadway as to vehicle count or presence, speed and direction of movement by mounting a microphone array high above the road surface, digitizing the output signals of the microphones, filtering, beamforming and storing the digitized signals to provide separate power histories for separate locations in individual lanes. These power histories are then analyzed to provide vehicle movement data for each lane.
Lee, Gregory. (1999). Passive acoustic traffic monitoring system (U.S. Patent No. 5878367). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5878367
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile