Method and device for monitoring a data processing and transmission
First Claim
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1. A method for monitoring data processing and transmission in a data processing unit having two or more software modules, comprising:
- interchanging data between the software modules, the data having an associated checksum; and
shifting the checksum as the data passes correctly through each of the software modules, the checksum being shifted in the software modules by a number of digits corresponding to a number of correct software module data passes.
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Abstract
Data processing and transmission is monitored in a data processing unit. The data processing unit has a plurality of software modules, between which data is exchanged, a check sum is allocated to the data of a data transmission, which, in selected software modules is advanced by a plurality of places through one of the software modules.
66 Citations
13 Claims
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1. A method for monitoring data processing and transmission in a data processing unit having two or more software modules, comprising:
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interchanging data between the software modules, the data having an associated checksum; and shifting the checksum as the data passes correctly through each of the software modules, the checksum being shifted in the software modules by a number of digits corresponding to a number of correct software module data passes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for monitoring data processing and data transmission in a data processing unit, comprising:
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two or more logical channels for interchanging data having a checksum associated therewith; and a plurality of software modules communicating through the logical channels, the software modules including at least one checksum software module, each checksum software module modifying the checksum if the associated data passes successfully through the checksum software module, the checksum being modified by shifting the checksum a number of digits such that a total checksum shift corresponds with a total number of correct checksum software module passes. - View Dependent Claims (10, 11, 12, 13)
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Specification