Sequential check-out system including code comparison for circuit operation evaluation
Abstract
Abstract A "GO" OR "NO GO" INDICATION OF CIRCUIT OPERATION IS PRODUCED BY EXERCISING THE OPERTION OF THE CIRCUIT THROUGH VARIOUS MODES. TO EVALUATE THE OPERATION OF A CIRCUIT, A PROGRAMMER PRODUCES A SERIES OF INPUT CHECK SIGNALS IN A SEQUENCE DETERMINED BY CONTROL PULSES. THESE CHECK SIGNALS ARE CONNECTED TO THE INPUTS OF THE CIRCUIT UNDER EVALUATION AND EXERCISE THE CIRCUIT THROUGH THE VARIOUS OPERATING MODES. AS THE CIRCUIT IS EXERCISED, OUTPUT SIGNALS ARE PRODUCED WHICH OCNNECT TO AN ENCODER. THE ENCODER PRODUCES AN OPERATIONS CODE IN RESPONSE TO THE CIRCUIT OUTPUT SIGNALS. THIS OPERATIONS CODE IS COMPARED WITH A STANDARD CODE WHICH HAS BEEN DERIVED IN ADVANCE. IF THE OPERATIONS CODE COMPARES FAVORABLE WITH THE STANDARD CODE, A "GO" INDICATION IS PRODUCED, IF THE TWO CODES DO NOT MATCH, A CIRCUITS MAY BE CHECKED FOR OPERATION.
Inventors
- 👤 C Deering
Bibliographic Details
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