Network system
First Claim
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1. A network system, comprising:
- a media data conversion unit;
end systems including a sending end system capable of transmitting media data and at least two receiving end systems capable of receiving media data, each of said end systems being connected to a network across which said sending end system transmits media data through said media data conversion unit to said at least two receiving end systems; and
a system information management unit for;
receiving system information from each one of said end systems and said media data conversion unit, said system information received from said one of said end systems including;
end system media data processing capability information; and
a user media presentation requirement specifying a user'"'"'s preference for presentation of said media data by said one of said end systems, anddetermining media data conversion settings for said media data conversion unit in response to said system information;
in which;
said media data conversion unit operates in response to said media data conversion settings determined by said system information management unit to receive said media data from said sending end system, to convert said media data into converted media data that are in accordance with said system information for said at least two receiving end systems and to transmit said converted media data to said at least two receiving end systems.
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Abstract
A system information management unit obtains system information from end systems or media data conversion units and sets end system media data compatibility conditions. The media data conversion units obtain this system information from the system information management unit. When media data are transmitted between the end systems, the media data are first converted in accordance with the system information and then sent to receiving end systems.
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Citations
14 Claims
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1. A network system, comprising:
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a media data conversion unit; end systems including a sending end system capable of transmitting media data and at least two receiving end systems capable of receiving media data, each of said end systems being connected to a network across which said sending end system transmits media data through said media data conversion unit to said at least two receiving end systems; and a system information management unit for; receiving system information from each one of said end systems and said media data conversion unit, said system information received from said one of said end systems including; end system media data processing capability information; and a user media presentation requirement specifying a user'"'"'s preference for presentation of said media data by said one of said end systems, and determining media data conversion settings for said media data conversion unit in response to said system information;
in which;said media data conversion unit operates in response to said media data conversion settings determined by said system information management unit to receive said media data from said sending end system, to convert said media data into converted media data that are in accordance with said system information for said at least two receiving end systems and to transmit said converted media data to said at least two receiving end systems. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In a network system, a method for reducing the load on end systems connected to the network and on the network by efficiently transmitting and receiving media data when user demands for said media data, end system processing capability, and media presentation format differ at ones of said end systems, said method comprising:
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connecting end systems, a system information management unit, and a media data conversion unit to a network, said end systems including a sending end system capable of transmitting media data and at least two receiving end systems capable of receiving media data; receiving system information for each one of said end systems and said media data conversion unit using said system information management unit, said system information for said one of said end systems including; end system media data processing capability information, and a user media presentation requirement specifying a user'"'"'s preference for presentation of said media data by said one of said end systems; determining media data conversion settings for said media data conversion unit in response to said system information using said system information management unit; receiving said media data from said sending end system at said media data conversion unit; in response to said media data conversion settings, converting said media data to converted media data using said media data conversion unit, said converted media data according with said system information for said at least two receiving end systems; and transmitting said converted media data to said at least two receiving end systems from said media data conversion unit. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification