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:
Aug. 26, 1986
Filed:
Dec. 13, 1982
Applicant:
Inventors:
Maurice Boutonnat, Gouvieux, FR;
Gerard Rose, Villers Saint Paul, FR;
Assignee:
Charbonnages de France, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ; G08C / ;
U.S. Cl.
CPC ...
3403 / ; 3403 / ; 34087013 ;
Abstract
A process of remote transmission of signals issued by at least one sensor over a transmission line, wherein the power necessary to supply the sensor is transmitted by that line in the form of an alternating current signal of approximately constant intensity, and wherein the line fulfills the triple function of supplying power to that sensor, of transmitting interrogation signals from a central station to that sensor and of transmitting data signals in response to that interrogation signal from the sensor to the central station. A device for incorporating this process is also disclosed.