Patent · US Expired

Adapter frequency range equalizer for digital radio relay systems

US4800572A · kind A · utility

7Cited by

10References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Josef Nossek · Iffeldorf, DE
Georg Sebald · Birkenfeld, DE
Berthold Lankl · Egmating, DE
Klaus Boshold · Kaufering, DE

Key dates

Filing date	Aug 31, 1987
Grant date	Jan 24, 1989
Priority date	—
Expiry date	Aug 31, 2007

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/01
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An adaptive frequency range equalizer for digital radio relay systems which require adaptive frequency range equalizers which have coefficients that are adjustable. That are different possibilities for setting the coefficients of the transversal filter in such equalizers in a manner such that the transmission function of the transversal filter is either of the minimum phase type (mp), or the linear phase type (lp) or the non-minimum phase type (mnp). The invention discloses a method and apparatus for obtaining either of the three transmission functions for the transversal filter.

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