Data communication system, data communication method, data communication apparatus and digital interface

A data communication method comprising steps of:

• setting a logical connection relationship between a source node and one or more destination nodes;
• performing asynchronous communication at least once to transfer data comprising one or more segments to said one or more destination nodes;
• controlling a timing for performing said asynchronous communication;
• and
• using said logical connection relationship to receive the data transferred using said asynchronous communication.

A data communication system comprising;

• a source node for performing broadcast communication at least once to transfer data comprising one or more segments based on a logical connection relationship;
• and
• one or more destination nodes for receiving the data transferred from said source node based on said logical connection relationship, wherein
• said source node controls a timing for performing said broadcast communication.

A data communication method comprising steps of:

• performing broadcast communication at least once to transfer data comprising one or more segments to one or more destination nodes based on a logical connection relationship;
• controlling a timing for performing said broadcast communication;
• and
• receiving the data transferred from said source node based on said logical connection relationship.

A data communication apparatus comprising;

• means for packetizing data comprising one or more segments into a plurality of communication packets;
• and
• means for successively transferring the communication packets based on a logical connection relationship set with one or more destination nodes, wherein
• the communication packets are asynchronously transferred after a predetermined time elapses.

A data communication apparatus comprising:

• means for receiving communication packets successively transferred from a source node based on a logical connection relationship set with the source node;
• and
• means for writing data included in said communication packets into a memory space common to other apparatuses, wherein
• the communication packets are asynchronously transferred after a predetermined time elapses.

A data communication method comprising steps of:

• setting a logical connection relationship between a source node and one or more destination nodes;
• notifying said source node and said one or more destination nodes of a connection ID for identifying said logical connection relationship;
• and
• setting in said source node a time interval of communication packets successively transferred based on said logical connection relationship.

A digital interface comprising:

• means for packetizing data comprising one or more segments into a plurality of communication packets;
• and
• means for successively transferring the communication packets based on a logical connection relationship set with one or more destination nodes, wherein
• the communication packets are asynchronously transferred after a predetermined time elapses.

A digital interface comprising:

• means for receiving communication packets successively transferred from a source node based on a logical connection relationship set with the source node;
• and
• means for writing data included in said communication packets into a memory space common to other apparatuses, wherein
• the communication packets are asynchronously transferred after a predetermined time elapses.