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:
May. 13, 2003
Filed:
Nov. 13, 2001
Applicant:
Inventors:
Assignee:
IC-Haus GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 1/104 ;
U.S. Cl.
CPC ...
H04M 1/104 ;
Abstract
The invention is based on the object of making available a control and data transmission system which uses simple components to permit current-modulated data transmission via a serial bus, and whose components can be used in a flexible way. For this purpose, the control and data transmission system ( ) has a controllable bus terminating device ( ) for impressing a predetermined working current into the bus ( ). Each subscriber ( ) has a D.C.-coupled transmitter ( ) for generating and emitting control signals and data signals which modulate the working current, and a D.C.-coupled receiver ( ) for sensing and evaluating the working current which is modulated by the control signals and data signals.