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. 09, 1996
Filed:
Jul. 29, 1994
Applicant:
Inventors:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359110 ; 359152 ; 371 201 ; 370 13 ;
Abstract
A station-to-station communication system with a built-in testing arrangement in at least one of the stations. The testing arrangement includes a transmitter/receiver pair with associated light/electricity and electricity/light transducers connectable at will by controlled switching means. When the transmitter/receiver pair is connected to each other, electro-optical light signals emitted by the transmitter are returned to the receiver and produce perceptible signals.