发明名称 SPEECH COMMUNICATION APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide speech communication apparatus not only for preventing echo suppression capability from degrading even when the positional relationship between a speaker and a microphone is changed but also for allowing high quality speech communication to be performed regardless of the positional relationship between a near-end person and the microphone. SOLUTION: A current value detection part 131 is provided that detects the current value of a parameter defining the positional relationship between a remote-end signal conversion part 112 and either of first 121 or second 122 near-end voice conversion parts. First 133 and second 134 near-end signal delay parts are used to delay near-end signals in accordance with the current value determined by the current value detection part 131. The difference between the near-end signals as delayed is outputted, as a near-end signal as echo-suppressed, from a first output part 135. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005051744(A) 申请公布日期 2005.02.24
申请号 JP20040172528 申请日期 2004.06.10
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 MIZUSHIMA KOICHIRO;MATSUI MINORU
分类号 H04M1/00;H04B3/23;H04M1/58;H04M9/08;(IPC1-7):H04B3/23 主分类号 H04M1/00
代理机构 代理人
主权项
地址