| 摘要 |
PROBLEM TO BE SOLVED: To provide a conference microphone device capable of increasing the number of simultaneous speakers while preventing howling. SOLUTION: A howling pattern storage unit 35 stores a howling generation microphone ON pattern indicating a microphone unit 12 in an ON state when howling generation is detected. A microphone output request data acquiring unit 36 acquires microphone output request data from the microphone unit 12. A pattern comparing unit 38 compares a request answer microphone ON pattern representing a microphone unit 12 which is in an ON state when the microphone output request data are acquired and the microphone unit 12 sending the microphone output request data with the howling generation microphone ON pattern. A microphone ON control unit 39 suppresses ON control over the microphone unit 12 sending the microphone output request data when both the pattern match each other. COPYRIGHT: (C)2008,JPO&INPIT
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