CIRCUIT ARRANGEMENT FOR CONVERTING AN INFORMATION SIGNAL INTO A RECTANGULAR SIGNAL

摘要

"Circuit arrangement for converting an information signal into a rectangular signal" For the conversion of a signal read from a record carrier into a rectangular signal a thresholdvalue circuit is used, whose threshold value is determined by a reference signal. Said reference signal is derived from a d.c. component in the converted signal. During a dropout in the signal being read said reference signal is maintained at the level which it had before the occurrence of the dropout.