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    • 17. 发明专利
    • VOICE ANNOUNCEMENT SYSTEM
    • JPH11261985A
    • 1999-09-24
    • JP5497998
    • 1998-03-06
    • FUJITSU LTD
    • OOTANI KEIICHIYAMAMOTO TAKAYA
    • H04H20/02H04H20/28H04H20/77H04H20/79H04H60/13H04N7/16H04N21/262H04N21/4425H04H1/04
    • PROBLEM TO BE SOLVED: To provide a voice announcement system capable of stopping broadcasting even when a broadcasting stop message is not delivered to a subscriber terminal because of noises or the like. SOLUTION: Concerning this voice announcement system, a center device 34 is provided with a broadcasting ID register means 38 for registering a broadcasting ID specifying broadcasting in a broadcasting ID storage means 36 when there is a broadcasting start request from a broadcasting console 32, a first broadcasting ID deleting means 40 for deleting the broadcasting ID from the broadcasting ID register means when there is a broadcasting stop request from the broadcasting console, a broadcasting continuation message sending means 42 for sending out a broadcasting continuation message instructing the continuation of broadcasting while containing the broadcasting ID according to a broadcasting continuing instruction, and a broadcasting monitoring means 44 for periodically instructing the continuation of broadcasting concerning the broadcasting ID registered in the broadcasting ID storage means and subscriber terminals 30-1 to 30-n are provided with a broadcasting stop means 46 for stopping broadcasting when the broadcasting continuation message is not received for a fixed period concerning broadcasting under reception.