Transversal equalizer

Abstract

Abstract PURPOSE:To control many combinations of tap coefficients through a memory circuit of small capacity for a transversal equalizer, by providing an arithmetic means in a control circuit which decides the tap coefficient. CONSTITUTION:A thumbwheel switch 4 is operated for selection of a tap coefficient among amplitude distributions together with a tap coefficient among group delay time distortions. Then a tap of composite distortions of both amplitude and group delay time distortions is calculated by an arithmetic circuit 6 via a control circuit 2. This calculated tap is sent to a D/A converter circuit via the circuit 2 again and converted into the tap coefficient voltage. A transversal filter 1 is controlled by said tap coefficient voltage to obtain the desired characteristics.

Inventors

• 👤 Hiromi Shimoda
• 👤 下田　弘美

Bibliographic Details