Apparatus and method for controlling image quality and sound field in digital format broadcasting

An apparatus for controlling an image quality and a sound field in digital format broadcasting, comprising:

• a digital format broadcast de-modulator for generating digital data, service information, multiplexer information, and optimum sound field information and optimum image quality information in the digital format broadcasting, by de-modulating received signals according to a de-modulation method of the digital format broadcasting corresponding to a transmission method of the digital format broadcasting;
• a channel decoder for generating digital audio/video codes and digital data codes by channel-decoding the digital data according to a preset channel decoding method;
• a digital signal processor/image quality controller for controlling an image quality of the digital video codes according to the optimum image quality information, and controlling a sound field of the digital audio codes according to the optimum sound field information;
• a video decoder for outputting video service signals by decoding the digital video codes controlled by the optimum image quality information according to a preset video decoding method;
• an audio decoder for outputting audio service signals by decoding the digital audio codes controlled by the optimum sound field information according to a preset audio decoding method;
• and
• a data decoder for outputting data service signals by decoding the digital data codes according to a preset data decoding method.

A method for controlling an image quality and a sound field in digital format broadcasting, comprising the steps of:

• generating digital audio/video codes by encoding audio/video service signals according to a preset audio/video encoding method;
• generating digital data codes by encoding data service signals according to a preset data encoding method;
• generating digital data by multiplexing the digital audio/video codes and the digital data codes according to a preset multiplexing method;
• generating bit streams by multiplexing the digital data, service information, multiplexer information, and optimum sound field information and optimum image quality information in the digital format broadcasting according to a preset multiplexing method;
• and
• modulating the bit streams according to a transmission method of the digital format broadcasting, and transmitting the modulated bit streams through an antenna.

A method for controlling an image quality and a sound field in digital format broadcasting, comprising the steps of:

• generating digital data, service information, multiplexer information, and optimum sound field information and optimum image quality information in the digital format broadcasting, by de-modulating received signals according to a de-modulation method of the digital format broadcasting corresponding to a transmission method of the digital format broadcasting;
• generating digital audio/video codes and digital data codes by channel-decoding the digital data according to a preset channel decoding method;
• controlling an image quality of the digital video codes according to the optimum image quality information, and controlling a sound field of the digital audio codes according to the optimum sound field information;
• outputting video service signals by decoding the digital video codes controlled by the optimum image quality information according to a preset video decoding method;
• outputting audio service signals by decoding the digital audio codes controlled by the optimum sound field information according to a preset audio decoding method;
• and
• outputting data service signals by decoding the digital data codes according to a preset data decoding method.

An apparatus for controlling an image quality and a sound field in digital format broadcasting, comprising:

• a first encoder unit for generating digital audio/video codes by encoding audio/video service signals according to a preset audio/video encoding method;
• a second encoder unit for generating digital data codes by encoding data service signals according to a preset data encoding method;
• a multiplexer for generating digital data by multiplexing the digital audio/video codes and the digital data codes according to a preset multiplexing method;
• a transmission multiplexer for generating bit streams by multiplexing the digital data, service information and multiplexer information according to a preset multiplexing method;
• and
• a digital format broadcast modulator for modulating the bit streams according to a transmission method of the digital format broadcasting, and transmitting the modulated bit streams through an antenna.

An apparatus for controlling an image quality and a sound field in digital format broadcasting, comprising:

• a digital format broadcast de-modulator for generating digital data, service information and multiplexer information by de-modulating received signals according to a de-modulation method of the digital format broadcasting corresponding to a transmission method of the digital format broadcasting;
• a channel decoder for generating digital audio/video codes and digital data codes by channel-decoding the digital data according to a preset channel decoding method;
• a digital signal processor/image quality controller for controlling an image quality of the digital video codes according to the service information, and controlling a sound field of the digital audio codes according to the service information;
• a video decoder for outputting video service signals by decoding the digital video codes controlled by the service information according to a preset video decoding method;
• an audio decoder for outputting audio service signals by decoding the digital audio codes controlled by the service information according to a preset audio decoding method;
• and
• a data decoder for outputting data service signals by decoding the digital data codes according to a preset data decoding method.

A method for controlling an image quality and a sound field in digital format broadcasting, comprising the steps of:

• generating digital audio/video codes by encoding audio/video signals according to a preset audio/video encoding method;
• generating digital data codes by encoding data service signals according to a preset data encoding method;
• generating digital data by multiplexing the digital audio/video codes and the digital data codes according to a preset multiplexing method;
• generating bit streams by multiplexing the digital data, service information and multiplexer information according to a preset multiplexing method;
• and
• modulating the bit streams according to a transmission method of the digital format broadcasting, and transmitting the modulated bit steams through an antenna.

A method for controlling an image quality and a sound field in digital format broadcasting, comprising the steps of:

• generating digital data, service information and multiplexer information by de-modulating received signals according to a de-modulation method of the digital format broadcasting corresponding to a transmission method of the digital format broadcasting;
• generating digital audio/video codes and digital data codes by channel-decoding the digital data according to a preset channel decoding method;
• controlling an image quality of the digital video codes according to the service information, and controlling a sound field of the digital audio codes according to the service information;
• outputting video service signals by decoding the digital video codes controlled by the service information according to a preset video decoding method;
• outputting audio service signals by decoding the digital audio codes controlled by the service information according to a preset audio decoding method;
• and
• outputting data service signals by decoding the digital data codes according to a preset data decoding method.