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.

Date of Patent:
Jan. 14, 1992

Filed:

Oct. 16, 1989
Applicant:
Inventors:

Hans Ott, Regensburg, DE;

Hermann Zierhut, Munich, DE;

Assignee:

Siemens Aktiengesellschaft, Berlin & Munich, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
3403 / ; 3403 / ;
Abstract

A bus coupler for coupling transmitting and receiving stations to a two-conductor bus which feeds d-c current for coupling the on-board networks of the stations. It is designed for information traffic, for instance, with digital data transmission, for measuring and controlling and/or with analog signals for measuring and controlling and for speech transmission in that the information is superimposed as a completely symmetrical a-c voltage relative to a floating imaginary centralized ground, where the bus coupling comprises a switch for power and information which couples the information in and out, conductively separated from the power path.


Find Patent Forward Citations

Loading…