Useful signal discriminator for the reception of a digital signal transmitted over infrared medium.

摘要

The discriminator comprises in cascade a capacitive link 1, a first filtering circuit 10 which essentially eliminates the 100 Hz noise component, a second filtering circuit 20 employing a sampler, a circuit 30 for relocking with respect to a reference voltage and a switch 40 eliminating the undesired components by short-circuiting at predetermined moments.