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. 26, 1998
Filed:
Apr. 12, 1995
Applicant:
Inventor:
Hermann Friedrich Hoepken, Sprockhovel, DE;
Assignee:
K.A. Schmersal GmbH & Co., Wuppertal, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ; H04Q / ;
U.S. Cl.
CPC ...
36455101 ; 340538 ;
Abstract
The operability of a plurality of sensors is monitored by periodically interrogating the sensors individually and evaluating the responses to the interrogation. The sensors are each connected to a two-conductor power supply bus via a signal processor and an interface. The information exchanged via the bus is in the form of binary coded signals generated by clocking the bus voltage.