Multi-spot call system, sound volume adjustment device,...

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers

Reexamination Certificate

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Details

C455S519000, C455S517000, C455S500000, C455S416000, C455S403000, C379S202010, C379S203010, C379S204010, C379S205010, C379S206010

Reexamination Certificate

active

07574228

ABSTRACT:
Stored in an each speaker's sound volume coefficient table13are a speaker identification ID and information of a voice coefficient so as to be correlated with each other. A speaker identification unit11extracts an each speaker's ID from a received packet based on floor control information or outputs the packet as an RTP packet to an RTP buffer. A sound volume control unit12executes a control program14aof a recording medium14to record a current speaker identification ID and reads a sound volume coefficient relevant to the speaker identification ID from the each speaker's sound volume coefficient table13to output the coefficient as sound volume control information. In this case, the sound volume control unit12increments/decrements the relevant sound volume coefficient based on sound volume adjustment information of a sound volume adjustment unit.

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