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:
Dec. 09, 1980
Filed:
Jun. 05, 1978
Applicant:
Inventors:
Eise C Dijkmans, Eindhoven, NL;
Klaus-Dieter K Brockmann, Hilversum, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 179 77 ;
Abstract
A supply circuit for a telephone subscriber's line circuit that includes a voltage source and a supply impedance connected in series with the line to the voltage source for limiting the line current upon short circuit of the line. The supply circuit includes an AC voltage generator, an AC/DC converter, and a circuit for coupling the AC voltage generator to the line via the supply impedance and the AC converter.
Dijkmans, Eise. (1980). Supply circuit for a subscriber's line circuit (U.S. Patent No. 4238644). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4238644
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile