DISTRIBUTED COMMUNICATION SYSTEM
PROBLEM TO BE SOLVED: To solve the problem in a conventional multi-user audio communication system or IM system that it requires a server for managing a conference or a terminal having functions of the server, and cannot be realized in a server-less environment. SOLUTION: A specific terminal broadca...
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| creator | SHIGA KENTA TANIGAWA KEIKO FUKUZAWA JUNJI |
| description | PROBLEM TO BE SOLVED: To solve the problem in a conventional multi-user audio communication system or IM system that it requires a server for managing a conference or a terminal having functions of the server, and cannot be realized in a server-less environment. SOLUTION: A specific terminal broadcasts an online or offline command to all other terminals when it is on-line or off-line to an ad hoc network. In an online state, resources (buffer, etc.) used by a plurality of channels consenting in advance are ensured, a participation-expressing command including a number of a channel, which the terminal itself desires to participate in, is multicasted to a pre-assigned address, and audio as well as IM data are transmitted to the address at the same time. If other terminals are participating in the channel, a plurality of pieces of audio and IM data are received from the other terminals. In the case of audio data, mixed data of a plurality of audio data are generated. When a terminal leaves the channel, a departure command is transmitted to the address. COPYRIGHT: (C)2004,JPO |
| format | Patent |
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SOLUTION: A specific terminal broadcasts an online or offline command to all other terminals when it is on-line or off-line to an ad hoc network. In an online state, resources (buffer, etc.) used by a plurality of channels consenting in advance are ensured, a participation-expressing command including a number of a channel, which the terminal itself desires to participate in, is multicasted to a pre-assigned address, and audio as well as IM data are transmitted to the address at the same time. If other terminals are participating in the channel, a plurality of pieces of audio and IM data are received from the other terminals. In the case of audio data, mixed data of a plurality of audio data are generated. When a terminal leaves the channel, a departure command is transmitted to the address. 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SOLUTION: A specific terminal broadcasts an online or offline command to all other terminals when it is on-line or off-line to an ad hoc network. In an online state, resources (buffer, etc.) used by a plurality of channels consenting in advance are ensured, a participation-expressing command including a number of a channel, which the terminal itself desires to participate in, is multicasted to a pre-assigned address, and audio as well as IM data are transmitted to the address at the same time. If other terminals are participating in the channel, a plurality of pieces of audio and IM data are received from the other terminals. In the case of audio data, mixed data of a plurality of audio data are generated. When a terminal leaves the channel, a departure command is transmitted to the address. COPYRIGHT: (C)2004,JPO</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBw8QwOCfJ0Cg1xdVFw9vf1DfXzdHYM8fT3UwiODA5x9eVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGBiaG5hZGxmaOxkQpAgBglSK7</recordid><startdate>20040624</startdate><enddate>20040624</enddate><creator>SHIGA KENTA</creator><creator>TANIGAWA KEIKO</creator><creator>FUKUZAWA JUNJI</creator><scope>EVB</scope></search><sort><creationdate>20040624</creationdate><title>DISTRIBUTED COMMUNICATION SYSTEM</title><author>SHIGA KENTA ; TANIGAWA KEIKO ; FUKUZAWA JUNJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2004178236A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2004</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>SHIGA KENTA</creatorcontrib><creatorcontrib>TANIGAWA KEIKO</creatorcontrib><creatorcontrib>FUKUZAWA JUNJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHIGA KENTA</au><au>TANIGAWA KEIKO</au><au>FUKUZAWA JUNJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DISTRIBUTED COMMUNICATION SYSTEM</title><date>2004-06-24</date><risdate>2004</risdate><abstract>PROBLEM TO BE SOLVED: To solve the problem in a conventional multi-user audio communication system or IM system that it requires a server for managing a conference or a terminal having functions of the server, and cannot be realized in a server-less environment. SOLUTION: A specific terminal broadcasts an online or offline command to all other terminals when it is on-line or off-line to an ad hoc network. In an online state, resources (buffer, etc.) used by a plurality of channels consenting in advance are ensured, a participation-expressing command including a number of a channel, which the terminal itself desires to participate in, is multicasted to a pre-assigned address, and audio as well as IM data are transmitted to the address at the same time. If other terminals are participating in the channel, a plurality of pieces of audio and IM data are received from the other terminals. In the case of audio data, mixed data of a plurality of audio data are generated. When a terminal leaves the channel, a departure command is transmitted to the address. COPYRIGHT: (C)2004,JPO</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | DISTRIBUTED COMMUNICATION SYSTEM |
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