Data communication system, transmitting device, and communication terminal

A data communication system for transmitting and receiving data, including:

• a transmitting device for transmitting first data;
• and
• a communication terminal including:
• a receiving unit for receiving the first data transmitted from the transmitting device;
• a first storage for storing the first data received by the receiving unit;
• a second storage for storing second data different from the first data;
• a reading unit for reading out data stored in the first storage or second storage;
• a display unit for displaying the data read out by the reading unit;
• a measuring unit for measuring an amount of the first data stored in the first storage;
• and
• a control unit for performing control such that the reading unit reads out data from the first storage or second storage.

A data communication system for transmitting and receiving data between a transmitting device and a communication terminal, wherein

• the transmitting device comprises:
• a data memory for storing a plurality of data;
• a receiving unit for receiving a request to transmit first data from the communication terminal;
• a selecting unit for selecting the first data from the data memory in response to the request for transmission;
• and
• a transmitting unit for transmitting the first data to the communication terminal;
• and wherein
• the communication terminal comprises:
• a request transmitting unit for transmitting a request to send the first data to the transmitting device;
• a data receiving unit for receiving the first data transmitted from the transmitting device;
• a first storage for storing the first data received by the data receiving unit;
• a second storage for storing second data different from the first data;
• a reading unit for reading out data stored in the first storage or second storage;
• a display unit for displaying the data read out by the reading unit;
• and
• a control unit for performing control over the reading unit such that, when an amount of the first data is less than a predetermined amount, the second data is read out from the second storage.

A transmitting device for transmitting data to a communication terminal comprising:

• storage means for storing a plurality of data;
• receiving means for receiving a request to transmit first data from the communication terminal;
• reading means for reading out the first data from the storage means;
• and
• transmitting means for transmitting the first data and inhibit data that inhibits insertion of second data different from the first data into the first data.

A communication terminal for transmitting data to and receiving data from a transmitting device, the communication terminal comprising:

• a request transmitting unit for transmitting a request to transmit first data to the transmitting device;
• a data receiving unit for receiving the first data transmitted from the transmitting device;
• a first storage for storing the first data received by the data receiving unit;
• a second storage for storing second data different from the first data;
• a reading unit for reading out data stored in the first storage or the second storage;
• a display unit for displaying the data read out by the reading unit;
• and
• a control unit for performing control such that the reading unit reads out the data from the first storage or the second storage according to an amount of the first data stored in the first storage.

A method of reproducing a plurality of data, comprising the steps of:

• receiving first data transmitted from a transmitting device;
• storing the received first data in a memory;
• reproducing first data from the memory;
• notifying reproduction of second data different from the first data when an amount of the first data stored in the memory becomes small;
• and
• selecting whether to allow reproduction of the second data or not;
• wherein when permission to reproduce the second data is selected, reproduction of the first data is stopped, and then reproduction of the second data is started.