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:
Mar. 07, 1989
Filed:
May. 29, 1987
Frederik Van Dongen, Eindhoven, NL;
Peter J Sijbers, Eindhoven, NL;
U.S. Philips Corp., New York, NY (US);
Abstract
A telephone set comprising an active line voltage stabilizer circuit having two output terminals 10-1 and 10-2 between which it produces a stabilized direct voltage which is independent of the line current. A series arrangement of a capacitor (14) and a resistor (16) is connected between such output terminals, the junction thereof constituting a DC supply terminal for the telephone set. Such arrangement does not alter the a.c. impedance of the stabilizer circuit between the wires, and has a considerably lower d.c. output resistance than supply terminals previously employed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile