Control unit including a circuit for controlling and setting control data for a digital processing circuit of a color television receiver

Claim 1

A control unit comprising: a signal processing circuit for converting a television signal into a digital signal, and for digitally processing the converted signal; a memory for storing control data including initial values required for the digital signal processing of said signal processing circuit; a control circuit including a control microcomputer for controlling said signal processing circuit and said memory; transmitter and receiver circuits for transmitting and receiving respectively at least one remote control signal; a first switch for setting said control circuit in a first mode or a second mode, said control circuit when set in said first mode controlling the digital processing including sound-volume adjustment of said signal processing circuit in accordance with said at least one remote control signal, and said control circuit when set in said second mode controlling the signal processing of said signal processing circuit to update the control data stored in said memory by adjustably setting said control data in accordance with said at least one remote control signal; and a second switch selectively operable for inhibiting in said first mode the updating of the control data stored in said memory and for allowing in said second mode the updating of the data stored in said memory.