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. 09, 1977
Filed:
Aug. 02, 1976
Gayle Russell Norberg, Columbia Heights, MN (US);
Control Data Corporation, Minneapolis, MN (US);
Abstract
A monitoring system for monitoring individual modules includes a central station and a plurality of remote modules connected to said central station by a data channel. Each remote module includes a switch responsive to a fault condition for connecting a passive circuit to said data channel. The central station supplies a monitor signal to which the passive circuit is responsive to supply a fault signal. The central station includes a monitor responsive to the fault signal for impressing an interrogation signal onto the data channel to which the passive circuit is responsive to supply a coded signal indicative of the particular module responding to the fault condition.