ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,799, issued on Nov. 18, was assigned to Siemens AG (Munich).
"Constrained operation of a field device" was invented by Markus Sauer (Munich), Tobias Aigner (Munich) and Nejc Zupan (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for operating a field device. The field device is configured for interacting with a control device. According to the method, a base key is received from a key generation device. A current constraint parameter relating to a predefined operating constraint for operating the field device is determined. A key is generated based on the base key and the current constraint parameter. The field device inte...