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Aagaard; Einar A.
Eindhoven, NL
No. of patents:

Patent Number Title Of Patent Date Issued
4276649 Receiver for digital signals in line code June 30, 1981
Receiver for a digital line code signal. This receiver comprises a line code decoder and a digital-to-analog converter. To reduce the audibility of bursts this receiver also comprises a line-code violation detector detecting whether the received signal deviates from the line code; as wel
4164632 Signalling system for overvoltage protectors August 14, 1979
A system for signalling the fact that the fuses and limiting diodes in the connecting circuits of telephone lines are defective. Use is made of the rest supply resistors already present in the connecting circuits and the loop detector which is normally used for detecting calls. The fuses
4158109 Interference insensitive line supervision circuit June 12, 1979
Interference insensitive line supervision circuit for subscriber's line having a given working range for the line potentials. A call can be simulated by the occurrence of overvoltages. Means are applied which supervise the occurrence of overvoltages. In the case of overvoltages these

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