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:
Apr. 24, 2001
Filed:
Mar. 02, 1998
Applicant:
Inventor:
Martin Siegwarth, Esslingen, DE;
Assignee:
Richard Hirschmann GmbH & Co., Neckartenzlingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 ; H02J 1/00 ;
U.S. Cl.
CPC ...
H04B 1/00 ; H02J 1/00 ;
Abstract
An improved circuit and method for connecting a device to an actuator-sensor interface (“ASI”) bus. The circuit provides the proper AC and DC coupling between the device and bus during normal operation, while providing AC and DC decoupling in the event of a short circuit or when the device is disconnected. The circuit accomplishes these goals while advantageously eliminating some of the components used in prior art circuits.