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:
Jul. 28, 1998
Filed:
May. 10, 1996
Hilario S Costa, Sarasota, FL (US);
Andrew Novetzke, Sarasota, FL (US);
General Signal Corporation, Stamford, CT (US);
Abstract
A life safety system having message priority of a network of panels, each panel including a first module in the form of a central processing unit, and a plurality of local I/O modules connected to the central processing unit and to each other. To establish a message priority in communication between the panels, including a two-state token form of coded invitations to transmit messages, the first state of the token represents the low priority invitation and the second state of the token represents the high priority invitation. Moreover, to further establish message priority including the passing of tokens continuously between panels to determine if any panel has the high priority message, that panel having the high priority message preempts communication of such messages between panels by first capturing the high priority state token.