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:
Sep. 12, 2017
Filed:
Dec. 11, 2015
Pepperl + Fuchs Gmbh, Mannheim, DE;
Pepperl + Fuchs GmbH, , DE;
Abstract
There is provided an interface circuit, a network switch or network device coupler incorporating the interface circuit, and a network incorporating the network switch or network device. The interface circuit has a data bus interface () for connecting a data bus to either a first device () that communicates in a first signalling protocol or a second device () that communicates in a second signalling protocol. The data bus has two bus conductors that provide combined power and data. A voltage source () powers the data bus. The voltage source () is connected to the data bus via a reactance () and then a first resistance () connected in series. An output of a transmitter () is connected via a second resistance () to a point between the reactance () and the first resistance, to modulate the data bus.