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. 19, 1986
Filed:
Mar. 05, 1984
Ian A Schorr, Chicago, IL (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
This disclosure depicts an active network for providing a virtual impedance to a voice frequency loaded pair having tip and ring terminals. The network comprises means for providing a predetermined capacitance between the tip terminal and ground and between the ring terminal and ground and has a variable resistive means. The means has a first input operatively connected to the tip terminal and a second input operatively connected to the ring terminal and also has first and second outputs. First and second fixed resistive means are operatively connected between the first output and the tip terminal and the second output and the ring terminal, respectively. The value of the predetermined capacitance is determined by the first and second fixed resistive means and the variable resistive means in the means for providing a predetermined capacitance.