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:
Apr. 22, 2003
Filed:
Nov. 21, 2001
Applicant:
Inventor:
Rainer Esch, Blomberg, DE;
Assignee:
Phoenix Contact GmbH & Co. KG, Blomberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 1/90175 ;
U.S. Cl.
CPC ...
H03K 1/90175 ;
Abstract
Apparatuses for level adjustment are essential to make adjustments to signals between integrated circuits having differing signal levels in electronic circuits. To assure signal adjustment for a large number of signals, as occur in parallel busses, an apparatus for level adjustment is used. This digital level adjustment uses the I/O cells already present in the integrated circuits with an externally wired pullup resistor and an internal digitally programmed or constructed signal connection for controlling output drivers.