Data communication apparatus, method and system and programs for data communication process stored in computer readable storage medium

A data communication apparatus, comprising:

• (a) communication means having a first mode of communication isochronous with a predetermined communication cycle and a second mode of communication asynchronous with the communication cycle;
• (b) encoding means for encoding image information in accordance with a decoding performance at an object node apparatus, the image information including moving image information and still image information;
• and
• (c) control means for controlling said communication means so as to transmit the moving image information by using the first mode and to transmit the still image information by using the second mode.

A data communication apparatus, comprising:

• (a) input means for inputting moving image information and still image information;
• (b) encoding means for encoding the moving image information and the still image information;
• and
• (c) transmitting means for transmitting the moving image to a number of unidentified apparatuses and transmitting the still image information to a designated apparatus.

A data communication apparatus, comprising:

• (a) input means for inputting information data;
• (b) encoding means for encoding the information data;
• and
• (c) transmitting means for transmitting decode information containing program codes realizing the decoding method corresponding to an encoding method to be used by said encoding means and transmitting the information data encoded by said encoding means.

A data communication apparatus, comprising:

• (a) encoding means for encoding information data by using a predetermined encoding method;
• (b) decoding means for decoding information data encoded by said encoding means;
• and
• (c) selecting means for selecting an output of either said encoding means or sad decoding means in accordance with whether the encoding method corresponds to a decoding method at an object node apparatus.

A data communication method, comprising the steps of:

• (a) encoding information data by a predetermined encoding method;
• (b) transmitting encoded information data isochronously with a predetermined communication cycle when the encoding method corresponds to a decoding method at an object node apparatus;
• and
• (c) transmitting non-encoded information data asynchronously with the communication cycle when the encoding method does not correspond to the decoding method at the object node apparatus.

A data communication method, comprising the steps of:

• (a) encoding image information in accordance with a decoding performance at an object node apparatus, the image information including moving image information and still image information;
• (b) transmitting the moving image information by using a communication scheme isochronous with a predetermined communication cycle;
• and
• (c) transmitting the still image by the communication scheme isochronous with the communication cycle or by a communication scheme asynchronous with the communication cycle.

A data communication method, comprising the steps of:

• (a) inputting moving image information and still image information;
• (b) encoding the moving image information and the still image information;
• and
• (c) transmitting the moving image to a number of unidentified apparatuses and transmitting the still image information to a designated apparatus.

A data communication method, comprising the steps of:

• (a) inputting information data;
• (b) encoding the information data;
• and
• (c) transmitting decode information containing program codes realizing the decoding method corresponding to an encoding method to be used at said encoding step and transmitting the information data encoded at said encoding step.

A data communication method, comprising the steps of:

• (a) encoding information data by using a predetermined encoding scheme;
• (b) decoding information data encoded at said encoding step;
• and
• (c) selecting an output of either the encoded information data or the decoded information data in accordance with whether the encoding scheme corresponds to a decoding scheme at an object node apparatus.

A program for a data communication process stored in a computer readable storage medium, comprising the steps of:

• (a) encoding information data by a predetermined encoding method;
• (b) transmitting encoded information data isochronously with a predetermined communication cycle when the encoding method corresponds to a decoding method at an object node apparatus;
• and
• (c) transmitting non-encoded information data asynchronously with the communication cycle when the encoding method does not correspond to the decoding method at the object node apparatus.

A program for a data communication process stored in a computer readable storage medium, comprising the steps of:

• (a) encoding image information in accordance with a decoding performance at an object node apparatus, the image information including moving image information and still image information;
• (b) transmitting the moving image information by using a communication scheme isochronous with a predetermined communication cycle;
• and
• (c) transmitting the still image by the communication scheme isochronous with the communication cycle or by a communication scheme asynchronous with the communication cycle.

A program for a data communication process stored in a computer readable storage medium, comprising the steps of:

• (a) inputting moving image information and still image information;
• (b) encoding the moving image information and the still image information;
• and
• (c) transmitting the moving image to a number of unidentified apparatuses and transmitting the still image information to a designated apparatus.

A program for a data communication process stored in a computer readable storage medium, comprising the steps of:

• (a) inputting information data;
• (b) encoding the information data;
• and
• (c) transmitting decode information containing program codes realizing the decoding method corresponding to an encoding method to be used at said encoding step and transmitting the information data encoded at said encoding step.

A program for a data communication process stored in a computer readable storage medium, comprising the steps of:

• (a) encoding information data by using a predetermined encoding scheme;
• (b) decoding information data encoded at said encoding step;
• and
• (c) selecting an output of either the encoded information data or the decoded information data in accordance with whether the encoding scheme corresponds to a decoding scheme at an object node apparatus.