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:
Jan. 26, 1988
Filed:
Jan. 21, 1986
Applicant:
Inventor:
Jurianus de Pauw, Emmen, NL;
Assignee:
Ericsson Paging Systems B.V., Emmen, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ; G08C / ; H03K / ;
U.S. Cl.
CPC ...
34082517 ; 34082506 ; 34082577 ; 307464 ;
Abstract
Remote-control system comprising a main unit and, connected at a distance via a pair of conductors to the main unit, an operating unit which comprises a series circuit of a number of diodes connected between the conductors of the conductor pair, a number of switches connected parallel to one or more of the diodes, and a signalling circuit. The main unit provides signalling corresponding to the certain current. In particular the certain current is determined by the state of the switches.