Patent · US Expired

Method for eliminating the zero point error in an iterative analog-digital converter

US4468651A · kind A · utility

7Cited by

6References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Robert Lechner · Otterfing, DE
Frithjof von Sichart · Munich, DE
Peter Picard · Taufkirchen, DE

Key dates

Filing date	Jul 21, 1981
Grant date	Aug 28, 1984
Priority date	—
Expiry date	Jul 21, 2001

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/74
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A zero equalization capacitor is connected to a first input of the comparator K, and at the beginning of the equalization phase, a voltage value of zero is placed at both comparator inputs, and a feedback network RN is connected between the comparator output and the capacitor, whereby the capacitor is charged to such a degree that the output signal of the comparator arrives at the decision threshold between the equality or inequality of the comparator inputs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.