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. 23, 2002
Filed:
Apr. 06, 2000
Jan-Erik Eklund, Linköping, SE;
Fredrik Gustafsson, Ljungsbro, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
The present invention relates to a method of offset compensating a parallel analogue-digital converter that includes at least two channels ( ), where the analogue to digital conversion takes place simultaneously in the various channels but offset relative to respective channels. An analogue input signal ( ) to the analogue-digital converter is multiplied by +1 or by −1 in accordance with an arbitrary pattern and the output signal from the analogue-digital converter is multiplied by +1 or by −1 in accordance with the same arbitrary pattern as that by which the input signal was multiplied. The invention also includes a parallel analogue-digital converter for carrying out the method.