| 摘要 |
PROBLEM TO BE SOLVED: To provide a call device which can prevent howling and be miniaturized. SOLUTION: The call device A is provided with a speaker SP for outputting voice information transmitted via an information line L2, and microphones M1, M2 for collecting voices and outputting voice signals, which are housed in a main body A10. The microphone M1 is arranged into the main body A10 so that its voice collecting portion opposes a diaphragm of the speaker SP. The microphone M2 is arranged in the main body A10 so that its voice collecting section faces the front of the main body A10. A signal processing section in the main body A10 executes processing of reducing voices emitted from the speaker SP from voice signals to be output from the microphone M2, using voice signals to be output from the microphone M1. COPYRIGHT: (C)2007,JPO&INPIT |
