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:
Feb. 17, 1998
Filed:
Jul. 03, 1996
Gerd Reime, Schomberg, DE;
Andres Richter, Pforzheim, DE;
Nokia Technology GmbH, Pforzheim, DE;
Abstract
A variable electronic resistor (16), which can be varied by a control signal (Ust) at the control input (15), contains two parallel, signal paths (1 and 2) with identical components, of which one signal path carries a phase inverted input transmission signal and the other signal path carries a non phase inverted input transmission signal and which are additively joined at the output side. Each signal path contains a charge carrier channel (3) and a signal transmission stage (7) with a low impedance current input, located downstream of the output electrode (5) in the signal path of the charge carrier channel. The resistor of the charge carrier channel can be varied by a control voltage (Ust), which is common to both charge carrier channels, in a control electrode (14) of the semiconductor components (4).