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EP0142983A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Fault protection flip flop

Assignee: Tandem Computers Inc
•
Filing: 1984-11-14
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Granted: —
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Expires: 2004-11-14
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Abstract

Abstract The disclosure relates to the use of a flip flop or the like to provide additional protection against the destruction of data located in microprocessor system support circuits. An electronic system comprising microprocessor means, memory means connected to said microprocessor means for storing information that can be altered by said microprocessor means, communication path means connecting together said microprocessor means and said memory means for communicating information and control signals between said microprocessor means and said memory means, and multistable means connected to said communication path means wherein said control signals from said microprocessor means must alter said multistable means to a predetermined state in order for said microprocessor means to alter the state of said memory means.

Inventors

  • 👤 William Robert Goodman
  • 👤 Kenneth George Koenig

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 22:38
CPC Classifications
G; G06; G06F; G06F11/00

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 90 words
An electronic system comprising microprocessor means, memory means connected to said microprocessor means for storing information that can be altered by said microprocessor means, communication path means connecting together said microprocessor means and said memory means for communicating information and control signals between said microprocessor means and said memory means, and multistable means connected to said communication path means wherein said control signals from said microprocessor means must alter said multistable means to a predetermined state in order for said microprocessor means to alter the state of said memory means.
Claim 2
Dependent Claim 90 words
An electronic system comprising microprocessor means, memory means connected to said microprocessor means for storing information that can be altered by said microprocessor means, communication path means connecting together said microprocessor means and said memory means for communicating information and control signals between said microprocessor means and said memory means, and multistable means connected to said communication path means wherein said control signals from said microprocessor means must alter said multistable means to a predetermined state in order for said microprocessor means to alter the state of said memory means.
Claim 3
Dependent Claim 27 words
The electronic system of claim 1 wherein said multistable means is a Bistable memory device for enabling or disabling said memory means through said communication path means.

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