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:
Apr. 14, 1987
Filed:
Apr. 03, 1985
Herman G Eldering, Nutting Lake, MA (US);
Baird Corporation, Bedford, MA (US);
Abstract
An optically readable system and method to allow for the remote identification of people and/or objects is disclosed. The system includes a spectrally continuous source of radiation generating an interrogating beam, an optically readable device carried by a person or attached to an object and having a unique spectral signature and, generating a retroreflected beam when exposed to the interrogating beam, and an optical spectrum analyzer and decoder for identifying the unique spectral signature of the interrogated optically readable device and for transmitting the identifying information to a display and/or a computer input. The spectrally continuous source of radiation can comprise a tungsten filament lamp, a tunable laser or the like. If covert identification is desired, the source is operated to generate an interrogating beam in the infra-red spectrum only.