Transmission/reception system, transmission apparatus and method, reception apparatus and method, transmission/reception apparatus and method, and computer-readable storage medium

A transmission apparatus for transmitting transmission data to a reception apparatus, comprising:

• a processor;
• a first production section for producing first data by dividing the transmission data into blocks having a predetermined size;
• a second production section for selecting a plurality of the blocks of the first data and for producing second data based on results of performing an exclusive OR operation on the selected plurality of blocks of the first data;
• an addition section for adding to at least one of the first data and the second data restoration relating information for enabling the reception apparatus to restore the first data when the reception apparatus fails to receive some of at least one of the first data and the second data;
• and
• a transmission section for packetizing the first data and the second data and for transmitting the resulting packets to the reception apparatus.

A transmission method of a transmission apparatus for transmitting transmission data to a reception apparatus, comprising:

• producing first data by dividing the transmission data into a plurality of blocks having a predetermined size;
• selecting a plurality of the blocks of the first data;
• producing second data based on the results of performing an exclusive OR operation on the selected plurality of blocks of the first data;
• adding to at least one of the first data and the second data restoration relating information for enabling the reception apparatus to restore the first data when the reception apparatus fails to receive some of at least one of the first data and the second data;
• packetizing the first data and the second data;
• and
• transmitting the resulting packets to the reception apparatus.

A computer-readable storage medium storing a computer program for causing a computer of a transmission apparatus to perform a method of transmitting transmission data to a reception apparatus, the method comprising:

• producing first data by dividing the transmission data into a plurality of blocks having a predetermined size;
• selecting a plurality of the blocks of the first data;
• producing second data based on results of performing an exclusive OR operation on the selected plurality of the blocks of the first data;
• adding to at least one of the first data and the second data restoration relating information for enabling the reception apparatus to restore the first data when the reception apparatus fails to receive some of at least one of the first data and the second data;
• packetizing the first data and the second data;
• and
• transmitting the resulting packets to the reception apparatus.

A reception apparatus for receiving transmission data transmitted from a transmission apparatus, comprising:

• a processor;
• a reception section for receiving first data comprising the transmission data divided into selected blocks having a predetermined size and packetized, and for receiving second data representative of the results of performing an exclusive OR operation on the selected plurality of the blocks of the first data;
• a decision section for deciding, based on first relating information for enabling the reception apparatus to restore the first data and added to the first data, whether the reception section fails to receive some of the first data;
• a determinant production section for producing, when it is decided that the reception section fails to receive some of the first data, an exclusive OR operation-based determinant for restoring the first data by using second relating information added to the second data and relating to the restoration of the first data;
• and
• a restoration section for solving the determinant to thereby restore the first data.

A reception method of a reception apparatus for receiving transmission data transmitted from a transmission apparatus, the method comprising:

• receiving first data comprising the transmission data divided into selected plurality of blocks having a predetermined size and packetized;
• receiving second data representative of results of performing an exclusive OR operation on the selected plurality of blocks of the first data;
• deciding, based on first relating information for enabling the reception apparatus to restore the first data added to at least one of the first data and second data, whether the reception apparatus fails to receive some of the first data;
• producing, when it is decided that the reception apparatus fails to receive some of the first data, an exclusive OR operation-based determinant for restoring the first data by using second relating information added to the second data and relating to the restoration of the first data;
• and
• solving the determinant to thereby restore the first data.

A computer-readable storage medium storing a program for causing a computer of a reception apparatus to perform a reception method of receiving transmission data transmitted from a transmission apparatus, the method comprising:

• receiving first data comprising the transmission data divided into a selected plurality of blocks having a predetermined size and packetized;
• receiving second data representative of results of performing an exclusive OR operation on the selected plurality of blocks of the first data;
• deciding, based on first relating information for enabling the reception apparatus to restore the first data added to at least one of the first data and second data whether the reception apparatus fails to receive some of the first data;
• producing, when it is decided that the reception apparatus fails to receive some of the first data, an exclusive OR operation-based determinant for restoring the first data by using second relating information added to the second data and relating to the restoration of the first data;
• and
• solving the determinant to thereby restore the first data.

A transmission/reception apparatus for transmitting and receiving transmission data, comprising:

• a processor;
• a first production section for producing first data by dividing the transmission data into a plurality of blocks having a predetermined size;
• a second production section for selecting a plurality of the blocks of the first data and for producing second data representative of results of performing an exclusive OR operation on the selected plurality of blocks of the first data;
• an addition section for adding to the first data first relating information for enabling the restoration of the first data and for adding to the second data second relating information which relates to the restoration of the first data;
• a transmission section for packetizing the first data and the second data and for transmitting the resulting packets to another transmission/reception apparatus;
• a reception section for receiving both of the first data and the second data transmitted from the other transmission/reception apparatus;
• a decision section for deciding, based on the first relating information, whether the reception section fails to receive some of the first data;
• a determinant production section for producing, when it is decided that the reception section fails to receive some of the first data, an exclusive OR operation-based determinant for restoring the first data by performing using the second relating information;
• and
• a restoration section for solving the determinant to thereby restore the first data.

A transmission/reception method of a transmission/reception apparatus for transmitting and receiving transmission data, comprising:

• producing first data by dividing of the transmission data into a plurality of blocks having a predetermined size;
• selecting a plurality of the blocks of the first data;
• producing second data representative of results of performing an exclusive OR operation on the selected plurality of blocks of the first data;
• adding to the first data first relating information for enabling the restoration of the first data;
• adding to the second data second relating information which relates to the restoration of the first data;
• packetizing the first data and the second data;
• transmitting the resulting packets to another transmission/reception apparatus;
• receiving the first data and the second data transmitted from the other transmission/reception apparatus;
• deciding, based on the first relating information, whether the other transmission/reception apparatus fails to receive some of the first data;
• producing, when it is decided that the other transmission/reception apparatus fails to receive some of the first data, an exclusive OR operation-based determinant for restoring the first data by using the second relating information;
• and
• solving the determinant to thereby restore the first data.

A computer-readable storage medium storing a program for causing a computer of a transmission/reception apparatus to perform a transmission/reception method for transmitting and receiving transmission data, the method comprising:

• producing first data by dividing of the transmission data into a plurality of blocks having a predetermined size;
• selecting a plurality of the blocks of the first data;
• producing second data representative of results of performing an exclusive OR operation on the selected plurality of blocks of the first data;
• adding to the first data first relating information for enabling the restoration of the first data;
• adding to the second data second relating information which relates to the restoration of the first data;
• packetizing the first data and the second data;
• transmitting the resulting packets to another transmission/reception apparatus;
• receiving the first data and the second data transmitted from the other transmission/reception apparatus;
• deciding, based on the first relating information, whether the other transmission/reception apparatus fails to receive some of the first data;
• producing, when it is decided that the other transmission/reception apparatus fails to receive some of the first data, an exclusive OR operaton-based determinant for restoring the first data by using the second relating information;
• and
• solving the determinant to thereby restore the first data.