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:
Feb. 24, 2009
Filed:
Oct. 29, 2004
Applicants:
Alberto Canella, Villach, AT;
Christian Jenkner, Velden, AT;
David Schwingshackl, Villach, AT;
Inventors:
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a transmission apparatus () for transmission of electrical signals between a line driver (), which is connected to a transmission line (), and a switching center (), having an analog feedback device () for coarse setting of a line voltage level () on the transmission line (), and a digital feedback device (), which is coupled to the analog feedback device () and has a feedback filter device (), designed such that a filter input signal () can be converted to a filter output signal () at a rate which is lower than the sampling rate (f) of an analog/digital converter ().