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. 13, 1993
Filed:
Apr. 11, 1991
Applicant:
Inventor:
Hans-Werner Rudolf, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04M / ;
U.S. Cl.
CPC ...
370 17 ; 328147 ; 379 27 ; 371 201 ;
Abstract
Given the prerequisite of a division of a subscriber line circuit into a high-voltage portion and a signal processor that defines the transmission-oriented properties, voltages arising at significant locations of the receiving branch and of the transmitting branch of the signal processor as a result of supplied and reflected sine signals are taken via a digital interface and specific transmission properties such as reflection attenuation and hybrid transfer attenuation are calculated therefrom on the basis of a correlation.