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:
Aug. 17, 2010
Filed:
Nov. 04, 2005
Heribert Baldus, Aachen, DE;
David Sanchez Sanchez, Aachen, DE;
Heribert Baldus, Aachen, DE;
David Sanchez Sanchez, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A system for securely synchronizing medical devices and providing message integrity with timeliness and uniqueness () includes a plurality of medical wireless devices (,, . . . ,). The medical devices (,, . . . ,) communicate wirelessly with one another. Each message (M) includes a data portion and a timestamp. Each medical device (,, . . . ,) includes a sensor () which is attached to a patient to monitor a common vital sign. The medical devices (,, . . . ,) are synchronized when the sensor () of each medical device detects a peak of the vital sign function. At this moment, internal clocks of each medical device (,, . . . ,) are zeroed and each internal timer starts counting time. Thus, the medical devices are loosely synchronized at approximately the same time. Each generated message (M) is timestamped with a send time (T) generated by a time count. The generated timestamp (T) of the message (M) is validated against a receive time (T) of the receiving medical device internal clock count. If the message (M) arrives out of the prespecified acceptance window, the message (M) is rejected by the receiving medical device.