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. 06, 2007
Filed:
Dec. 03, 1999
Antti Särelä, Espoo, FI;
Mario Loncar, Ekerö, SE;
Antti Särelä, Espoo, FI;
Mario Loncar, Ekerö, SE;
GE Healthcare Finland Oy, , FI;
Abstract
The invention relates to an arrangement in connection with a feedback control system, the arrangement comprising a controllable device (), a measuring device (), a controlling device () and a user interface by which the controlling device () can be monitored by means of set values. The measuring device () is adapted to measure a measuring value () from a measuring point, which measuring value is dependent on the operation of the controllable device and the controlling device () is adapted to monitor the controllable device () on the basis of the measuring value and set values. To improve safety, the arrangement comprises means () adapted to feed a reference signal () to the measuring device () periodically. The controlling device () is adapted to compare a measuring value () obtained from the reference signal with the real reference value () of the reference signal and adapted to take a safety measure when the measuring value () and the real reference value () differ substantially from each other.