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:
Oct. 08, 2019
Filed:
Aug. 12, 2015
Festo Ag & Co. KG, Esslingen, DE;
Steffen Wunderlich, Aichtal, DE;
Stefan Beuel, Walddorfhaslach, DE;
FESTO AG & CO. KG, Esslingen, DE;
Abstract
Field-device coupling unit for providing a supply voltage for a field device and for communication with a superordinate control unit, the field-device coupling unit including a current interface, which is configured for communication with the control unit and has a first controllable input load which is configured to provide, from an interface current of the current interface, a load voltage on which the supply voltage is based, the field-device coupling unit further including a circuit arrangement for providing a communication signal which is to be transmitted to the control unit, wherein the circuit arrangement is configured to control the first controllable input load according to the communication signal in order to superimpose the interface current with a current signal corresponding to the communication signal.