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:
Sep. 24, 2002
Filed:
Dec. 11, 1998
Lars Olof Mikael Lindberg, Täby, SE;
Ulf Peter Hansson, Huddinge, SE;
Lars Johan Pettersson, Årsta, SE;
Telefonaktiebolaget LM Ericsson, Stockholm, SE;
Abstract
A fault tolerant processing system includes at least two processing planes. Each processing plane processes an input signal and generates an output signal. The system further includes plane termination logic for receiving the output signals of the processing planes to generate a non-redundant output signal. Each processing plane is provided with devices for detecting a fault in the plane, and devices for substituting, in response to detection of a fault in the plane, a signal component, referred to as control component, representing a predetermined logical state for each one of those components of the processed input signal that are affected by the detected fault. Furthermore, the plane termination logic includes devices for performing logical operations on the output signals of the planes such that, in the generation of the non-redundant output signal, unaffected signal components of a received signal override corresponding control components of another received signal.