Patent EP0009828A2 successfully refreshed from Google Patents.
EP0009828A2
Expired / Lapsed
EP
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Digital display exerciser
Assignee: Westinghouse Electric Corp
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Filing: 1979-10-10
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Granted: —
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Expires: 1999-10-10
Abstract
Abstract This invention relates to a digital display exerciser (50) which increases the test and maintenance capability of the computer input/output interface (30) coupling a processor/display unit (22, 24) to a computer (40). The interface includes a memory (32) for storing therein data from data sources (DS) in response to display addresses generated by a processor (22). When there is some test or maintenance operation to be desired or any time the plant is down not using computer, the display exerciser is connected between the output of the interface and the input of the processor, while the data sources and the computer are disconnected from the processor/display unit. The display exerciser can recirculate data stored in the memory to the processor to provide a visual display of the contents of the memory in order to permit checking of the operational integrity of the interface. The display exerciser can also introduce new "simulated" data to the memory to aid in training of control room operators.
Inventors
- 👤 Charles Alfred Lawson Ii
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 15:37
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/006
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
263 words
A digital display exerciser for a data acquisition and storage system wherein data from at least one data source is not only processed for display but also is stored for computer address access of the data in response to periodically generated display addresses, said data acquisition and storage system including a data processor means having an input and an output, and including means for generating display addresses for addressing said at least one data source and causing data from said data source to be .supplied to the input of said data processor means, a display means operatively coupled to the output of said data processor means to provide a visual display of the data processed by said data processor means, a storage means for retraining in storage locations corresponding to the display addresses of said at least one data source, the data from said data source, and means responsive to a computer address data request by accessing and reading out the data stored in said storage means at an address location corresponding to the computer address, said display exerciser means being connected between the output of said storage means and the input of said data processor means, characterized in that said display exerciser includes data recirculating means for recirculating data from said storage means to the input of said data processor means in accordance with the display addresses generated by said data processor means, whereby the recirculated data is displayed by said display means thus permitting checking of the operational integrity of said storage means as well as said stored data access means.
Claim 2
Dependent Claim
263 words
A digital display exerciser for a data acquisition and storage system wherein data from at least one data source is not only processed for display but also is stored for computer address access of the data in response to periodically generated display addresses, said data acquisition and storage system including a data processor means having an input and an output, and including means for generating display addresses for addressing said at least one data source and causing data from said data source to be .supplied to the input of said data processor means, a display means operatively coupled to the output of said data processor means to provide a visual display of the data processed by said data processor means, a storage means for retraining in storage locations corresponding to the display addresses of said at least one data source, the data from said data source, and means responsive to a computer address data request by accessing and reading out the data stored in said storage means at an address location corresponding to the computer address, said display exerciser means being connected between the output of said storage means and the input of said data processor means, characterized in that said display exerciser includes data recirculating means for recirculating data from said storage means to the input of said data processor means in accordance with the display addresses generated by said data processor means, whereby the recirculated data is displayed by said display means thus permitting checking of the operational integrity of said storage means as well as said stored data access means.
Claim 3
Dependent Claim
44 words
A digital display exerciser as claimed in claim 1 wherein said data recirculating means includes means synchronized to the display address of said data processor means for accessing data in a storage location of said storage means corresponding to the display address plus one.
Claim 4
Dependent Claim
71 words
A digital display exerciser as'claimed in claim 1 or 2 further comprising new data generating means for supplying data to the input of said data processor means as well as said storage means which simulates data from said at least one data source, and selecting means for connecting either said data recirculating means or said new data generating means to the input of said data processor means as said storage means.
Claim 5
Dependent Claim
71 words
A digital display exerciser as claimed in claim 3 wherein said new data generating means includes means synchronized to the display address of said data processor means for generating predetermined. system test and evaluation data for supply to the input of said data processor means as well as said storage means in response to the selecting means connecting said new data generator means to the input of said data processor means.
Claim 6
Dependent Claim
23 words
A digital display exerciser substantially as hereinbefore described with reference to and, as shown in, Figures 2 through 5 of the accompanying drawings.
Claim 7
Dependent Claim
23 words
A digital display exerciser substantially as hereinbefore described with reference to and, as shown in, Figures 2 through 5 of the accompanying drawings.
References Cited (Backward Citations)
No citation records indexed.
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