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:
May. 16, 2000
Filed:
May. 15, 1998
Applicant:
Inventors:
Andrew John Stevens, Johnstone, GB;
Robert Stevens, Nottingham, GB;
Wayne Mark Cranton, Tollerton, GB;
Assignee:
Barr & Stroud Limited, Glasgow, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01C / ;
U.S. Cl.
CPC ...
33 / ; 33 / ; 33262 ; 33512 ; 2503381 ;
Abstract
A head tracking system 10 comprises a radiation emitter 18 and a radiation sensor 16 connected to a tracking processor 12. The emitter 18 has an output 46 producing radiation with spectral peak in the range 1000 nm to 1100 nm from a conventional LED 40 with a spectral peak in the range 500 nm to 900 nm in combination with a photoluminescent material 42.
Stevens, Andrew. (2000). Head tracking system (U.S. Patent No. 6061916). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6061916
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile