Automatische Verstärkungsregelung für einen hochauflösenden Fernsehsignalempfänger mit adaptivem Entzerrer

摘要

A high definition television receiver including analog and digital signal processing circuits (116,117) receives an analog high definition television signal representative of digital television information. The received signal contains narrowband high priority information and wideband low priority information. An automatic gain control (AGC) signal is developed (174) from the narrowband information as a function of the values of coefficients of an associated adaptive equalizer (120), and as a function of the number (162) of saturated samples processed by associated input analog-to-digital converters.