Apparatus for receiving digital broadcast signal and apparatus for recording and reproducing digital broadcast information included in the digital broadcast signal

A digital information recording and reproducing apparatus for receiving a digital broadcast signal transmitted from a sender and outputting a watching signal derived from the digital broadcast signal, the digital broadcast signal containing watch-unable information which prevents the apparatus from outputting the watching signal and containing watch-enable information which enables the apparatus to output the watching signal, the apparatus comprising:

• receiving means for receiving the digital broadcast signal from the sender;
• signal processing means for processing an input signal supplied thereto responsive to the watch-enable information and outputting a processed signal;
• recording and reproducing means for recording the processed signal and for reproducing a recorded signal from the recording and reproducing means;
• selecting means, operable in a first and second operating mode, for selecting the input signal to the signal processing means, whereby an output signal of the receiving means is selected in said first operating mode, and the recorded signal from the recording and reproducing means is selected in said second operating mode;
• extracting means coupled directly to the receiving means bypassing said selecting means independent of position of said selecting means for constantly extracting the watch-enable information from the digital broadcast signal received by the receiving means such that said signal processing means operates in both said first and second operating modes in response to the watching signal;
• and
• decoding means for producing and outputting the watching signal by decoding the processed signal, said watching signal being produced from the digital broadpast signal currently received by the receiving means in said first operating mode, and produced from the recorded signal reproduced from the recording and reproducing means in said second operating mode responsive to said watch-enable information wherein said watch-enable information constantly extracted by the extracting means enables the signal processing means to unscramble said input signal thereto in both the first and second operating modes.

A digital information recording and reproducing apparatus for receiving a digital broadcast signal transmitted from a sender and outputting a watching signal derived from the digital broadcast signal, the digital broadcast signal containing watch-unable information which prevents the apparatus from outputting the watching signal and containing watch-enable information which enables the apparatus to output the watching signal, the apparatus comprising:

• receiving means for receiving the digital broadcast signal from the sender;
• signal processing means for processing an input signal supplied thereto responsive to the watch-enable information and outputting a processed signal;
• recording and reproducing means for recording the processed signal and for reproducing a recorded signal from the recording and reproducing means;
• selecting means, operable in a first and second operating mode, for selecting the input signal to the signal processing means, whereby an output signal of the receiving means is selected in said first operating mode, and the recorded signal from the recording and reproducing means is selected in said second operating mode;
• extracting means coupled directly to the receiving means bypassing said selecting means for constantly extracting the watch-enable information from the digital broadcast signal received by the receiving means;
• and
• storing means for storing the watch-enable information, the watching signal is being produced from the digital broadcast signal currently received by the receiving means in said first operating mode, and produced from the recorded signal reproduced from the recording and reproducing means in said second operating mode responsive to the watch-enable information stored in the storing means wherein said watch-enable information constantly extracted by the extracting means enables the signal processing means to unscramble said input signal thereto in both the first and second operating modes.

A digital broadcast signal receiving apparatus for receiving a digital broadcast signal transmitted from a sender and outputting a watching signal derived from the digital broadcast signal, the digital broadcast signal containing watch-unable information which prevents the apparatus from outputting the watching signal and containing watch-enable information which enables the apparatus to output the watching signal, the apparatus comprising;

• input terminal means and output terminal means;
• receiving means for receiving the digital broadcast signal from the sender;
• signal processing means for processing an input signal supplied thereto responsive to the watch-enable information and outputting a processed signal to the output terminal means;
• selecting means, operable in a first and second operating mode, for selecting the input signal of the signal processing means, whereby an output signal of the receiving means is selected in said first operating mode, and a signal inputted to the input terminal means is selected in said second operating mode;
• extracting means coupled directly to the receiving means bypassing said selecting means for constantly extracting the watch-enable information from the digital broadcast signal received by the receiving means;
• and
• storing means for storing the watch-enable information, the watching signal being produced from the digital broadcast signal currently received by the receiving means in said first operating mode, and produced from the signal inputted to the input terminal means in said second operating mode responsive to the watch-enable information stored in the storing means wherein said watch-enable information constantly extracted by the extracting means enables the signal processing means to unscramble said input signal thereto in both the first and second operating modes.

A digital information recording and reproducing apparatus for receiving a digital broadcast signal transmitted from a sender and outputting a watching signal derived from the digital broadcast signal, the digital broadcast signal containing watch-unable information which prevents the apparatus from outputting the watching signal and containing a watch-enable information which enables the apparatus to output the watching signal, the apparatus comprising;

• receiving means for receiving the digital broadcast signal from the sender;
• signal processing means for processing an input signal supplied thereto responsive to the watch-enable information and outputting a processed signal;
• recording and reproducing means for recording the processed signal and for reproducing a recorded signal from the recording and reproducing means;
• selecting means, operable in a first and second operating mode, for selecting the input signal to the signal processing means, whereby an output signal of the receiving means is selected in said first operating mode, and the recorded signal from the recording and reproducing means is selected in said second operating mode;
• extracting means coupled directly to the receiving means bypassing said selecting means for constantly extracting the watch-enable information from the digital broadcast signal received by the receiving means;
• and
• storing means for storing the watch-enable information, wherein the watch-enable information is stored in the storing means in said first operating mode, and is read out from the storing means in said second operating mode for processing the input signal supplied to the signal processing means wherein said watch-enable information constantly extracted by the extracting means enables the signal processing means to unscramble said input signal thereto in both the first and second operating modes.

A digital broadcast signal receiving apparatus for receiving a digital broadcast signal transmitted from a sender and outputting a watching signal derived from the digital broadcast signal, the digital broadcast signal containing, watch-unable information which prevents the apparatus from outputting the watching signal and containing watch-enable information which enables the apparatus to output the watching signal, the apparatus comprising.

• input terminal means and output terminal means;
• receiving means for receiving the digital broadcast signal from the sender;
• signal processing means for processing an input signal supplied thereto responsive to the watch-enable information and outputting a processed signal to the output terminal means;
• selecting means, operable in a first and second operating mode, for selecting the input signal of the signal processing means, whereby an output signal of the receiving means is selected in said first operating mode, and a signal inputted to the input terminal means is selected in said second operating mode;
• extracting means coupled directly to the receiving means bypassing said selecting means for constantly extracting the watch-enable information from the digital broadcast signal received by the receiving means;
• and
• storing means for storing the watch-enable information, wherein the watch, enable information is stored in the storing means in said first operating mode, and is read out from the storing means in the second operating mode for processing the input signal supplied to the signal processing means wherein said watch-enable information constantly extracted by the extracting means enables the signal processing means to unscramble said input signal thereto in both the first and second operating modes.