Receiving circuit for an optical receiving apparatus

摘要

A reception circuit for an optical receiving device has an optical receiving device which converts an optical signal into an electrical signal, an electrical element (50) which simulates the electrical behavior of the receiving device in the non-illuminated state, a first circuit device which averages the electrical signal of the optical receiving device and a device (330) for ascertaining the difference between the electrical signal of the optical receiving device which is averaged over time and the electrical signal of the electrical element (50).