Detecting bit errors in a communications system
First Claim
1. A technique for determining a bit error rate comprising:
- receiving a digital signal;
detecting errors in said digital signal;
determining when a number of said errors reach a predetermined threshold; and
calculating a bit error rate based upon said predetermined threshold.
2 Assignments
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Accused Products
Abstract
Error codes output from a serializer/deserializer in a node of a communications network are detected by error decode logic that assumes that each new error occurrence reflects a one bit error in the word giving rise to the error code. Each error occurrence is then counted. When the error count reaches a predetermined limit (e.g., 250 errors), the total bit count required to accumulate the 250 errors is then determined. The total bits can be determined based on a clock count (time). The BER is then calculated based upon the fixed error limit and the total bit count. This BER is then reported and used to determine the health of the network.
25 Citations
23 Claims
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1. A technique for determining a bit error rate comprising:
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receiving a digital signal;
detecting errors in said digital signal;
determining when a number of said errors reach a predetermined threshold; and
calculating a bit error rate based upon said predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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14. A circuit for determining a bit error rate comprising:
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a receiver for receiving digital information and determining whether said information contains errors;
an error counter for counting errors;
a clock cycle counter for storing a value corresponding to a time required for said error counter to reach a predetermined error threshold value; and
a processing circuit for calculating a bit error rate based upon said threshold and said value.
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Specification