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:
Jan. 12, 2010
Filed:
Apr. 03, 2006
Applicant:
Risto Väisänen, Salo, FI;
Inventor:
Risto Väisänen, Salo, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit for rounding the edges of a digital pulse so as to reduce interference has a first rounding block, a second rounding block and an output stage. The first rounding block rounds the second and fourth pulse edges so as to prolong rising and falling time of the digital pulse. The second rounding block rounds the first and third pulse edges in accordance with non-linear characteristics of a semiconductor of the second rounding block. The output stage is a feedback circuit where the first rounding block is coupled with the second rounding block and the second rounding block is coupled with the feedback circuit.