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:
Jul. 29, 2008
Filed:
Feb. 08, 2002
Applicants:
Bengt Erik Jonsson, Spånga, SE;
Christer Alf Jansson, Linköping, SE;
Inventors:
Bengt Erik Jonsson, Spånga, SE;
Christer Alf Jansson, Linköping, SE;
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An A/D converter stage including an A/D sub-converter connected to a D/A sub-converter () is calibrated by a method that inserts a calibration test sequence into the D/A sub-converter. This is accomplished by forcing (SW) the comparators (COMP-COMP) of the A/D sub-converter to generate and insert the sequence into the D/A sub-converter.