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:
Oct. 14, 1997
Filed:
Sep. 10, 1992
Applicant:
Inventor:
Jouni Nyqvist, Muurla, FI;
Assignee:
Nokia Mobile Phones Ltd., Salo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323315 ;
Abstract
A scaling circuit in which a signal, which contains an ambient offset portion and a desired signal portion, in current mode, is scaled using a resistance means. The offset portion is substantially eliminated using constant flow rate means in the form of a current mirror, thus enabling the entire scaling dynamic of the circuit to be utilized. The teaching of the invention is directed in particular to the elimination of an error signal component from a Received Signal Strength Indicator (RSSI) signal that is output from a radio frequency receiver, such as a radiotelephone receiver.