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:
Nov. 06, 1984
Filed:
May. 03, 1982
Applicant:
Inventor:
Gilbert M Ferrieu, Bievres, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323315 ; 179 / ; 179 70 ; 179 77 ;
Abstract
A current mirror circuit for weighting a plurality of input currents and for forming their sum, the weighting coefficients of the input currents each being determined by the ratio between the value of first resistors present between an input terminal and a power supply terminal, and the value of a second resistor. Such circuits are suitable for use in subscriber line interface circuits in which the weighted sum is to be formed of the currents entering and leaving the subscriber's line with a precise adjustment of the weighting coefficients.