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:
Nov. 24, 2015
Filed:
Oct. 26, 2010
Steen Moellebjerg Matzen, Sydals, DK;
Steen Moellebjerg Matzen, Sydals, DK;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A field device for process instrumentation comprising a measurement transducer having an analog output to which a two-wire line can be connected for transmitting an analog output signal, wherein a unit galvanically separates the processor from an analog output circuit. A read-back channel for a pulse-width modulated digital signal, which is tapped behind an element for galvanic separation, is provided for monitoring generation of the analog output signal, and a unit is provided for monitoring the analog output signal to maintain a specifiable maximum deviation from a reference signal, which is generated in the same manner as the analog output signal by low-pass filtering from the pulse-width modulated digital signal. In the case of transient signals, the monitoring unit advantageously detects error states quickly and appropriate measures for reacting to the error states can therefore be implemented in less time.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile