Broadcasting device selecting program information based on search conditions

1. A receiver comprising:

a decoder for receiving a digital broadcast from a transmitter, the digital broadcast including a program information organized by the condition including at least one pair of a predetermined search condition and a program identifier, the predetermined search condition being set by the transmitter, the program identifier satisfying the search condition;

a search condition memory storing search conditions defined by the receiver;

a screening section for extracting the program identifier of the program satisfying the search condition from the program information organized by the search condition;

a first search-result memory for storing the search condition and the program identifier of the program satisfying the search condition extracted by the screening section;

an output section for displaying the program satisfying the search condition stored in the first search-result memory;

a program data storage for storing a program information extracted from the digital broadcast;

an input section through which a search condition is input by a viewer;

a search section for searching the program data storage for a program satisfying the search condition supplied through the input section;

a second search-result memory for storing the program supplied from the search section and satisfying the search condition; and

a selecting section for selecting one of content stored in the first search-result memory and content stored in the second search-result memory, wherein when the search condition is supplied through the input section,

the selecting section selects content stored in the first search-result memory if the first search-result memory stores a pair of the predetermined search condition and the program identifier of the program satisfying the search condition supplied through the input section, or

the selecting section selects content stored in the second search-result memory, having the search section to search the program data storage for a program satisfying the search condition supplied through the input section, if the first search-result memory stores no pair of the predetermined search condition and the program identifier of the program satisfying the input search condition supplied through the input section.

2. A receiver comprising:

a decoder for receiving a digital broadcast from a transmitter, and extracting a data multiplexed on the digital broadcast wave;

a program data storage for storing a program information extracted from the digital broadcast;

an input section through which a search condition is input by a viewer;

a search condition memory storing the search condition which is input through the input section;

a screening section for extracting a program identifier of a program satisfying the search condition stored in the search condition memory, from a program information organized by condition including at least one pair of a predetermined search condition and the program identifier of the program satisfying the predetermined search condition, the program information organized by condition being extracted by the decoder;

a first search-result memory for storing the search condition and the program identifier of the program satisfying the search condition, extracted by the screening section;

a search section for searching the program data storage for the program satisfying the search condition supplied through the input section;

a second search-result memory for storing the program supplied from the search section and satisfying the search condition;

a selecting section for selecting one of content stored in the first search-result memory and content stored in the second search-result memory; and

an output section for displaying the program selected by the selecting section,

wherein when the search condition is supplied through the input section,

the selecting section selects content stored in the first search-result memory if the first search-result memory stores a pair of the predetermined search condition and the program identifier of the program satisfying the search condition supplied through the input section, or

the selecting section selects content stored in the second search-result memory, having the search section to search the program data storage for a program satisfying the search condition supplied through the input section, if the first search-result memory stores no pair of the predetermined search condition and the program identifier of the program satisfying the input search condition supplied through the input section.