Circuit arrangement for regenerating input signal containing digital data sequences

Abstract

A circuit arrangement, in particular for DECT systems, regenerates an input signal (UE) which contains characteristic digital data sequences with N>1 different admissible discrete values per digital position. The circuit arrangement comprises: conversion means (K) which generate a regenerated digital output signal (UA) by comparing the input signal (UE) to at least N-1 reference levels (UIGN); at least one integration member (IG) for generating the at least N-1 reference levels (UDCN) by integrating the sections of the input signal (UE) which consist of the characteristic data sequences; a switching device (S) that may be driven to switch on and off the integration of the input signal (UE); a controller (CTRL) which switches on the integration process by driving the switching device (S) at the beginning of a characteristic data sequence in the signal flow and which switches off again the integration process when the end of the data sequence is recognized to avoid shifting the at least N-1 reference levels (UDCN); and at least one delaying element (VZ) for delaying the supply of the input signal to the at least one integration member with regard to supply of the input signal to the conversion means (K), and thus to prevent the continuation of the integration beyond the end of a characteristic data sequence.

Description

technical field [0001] The invention relates to a circuit arrangement for reproducing an input signal comprising a sequence of digital data, especially for radio communication equipment operating according to the Pan-European Digital Cordless Telephone (DECT) standard. Background technique [0002] In today's data processing equipment, communication equipment, and communication systems, digital technology is used to realize the transmission, storage, and processing of ever-increasing data or information. At this time, the data or information is represented by a sequence of discrete values. In most cases, this digital encoding is based on a binary representation. At this point, available digital storage is limited to two distinct discrete values: generally "high" or "1" and "low" or "0". For binary encoding, a single item or position representing a usable value in such an encoded data sequence is called a binary value (binary number). In addition, however, the digital repr...

AI Technical Summary

Problems solved by technology

[0010] There is at least one further disadvantage for DECT radio communication equipment: for the two transmission directions "mobile station-base station" and "base station-mobile station", their synchronous transmission words are opposite to each other, so the polarity of the required compensation is also opposite

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