| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless call speaker whereby a ringer tone of a phone can be recognized at a remote place. SOLUTION: The wireless call speaker comprises: an interface section 1 connectable to a speaker terminal of a phone or a master unit call signal terminal of the phone; a sound amplifier section 4; a level detection section 2; a timer section 3; a signal attachment section 8; an operation section 6 of a wireless transmission section 9; a system control section 7; the timer section 3 operable by a value set from the operation section 6 to the system control section 7; the wireless transmission section 9 for modulating a signal from the amplifier section 4 and wirelessly transmitting the modulated signal; a wireless reception section 22 for converting the signal wirelessly transmitted from the wireless transmission section 9 into voice; a signal detection section 25; an amplifier section 23 for outputting the voice from a speaker; a display control section 26; a display apparatus 27; and the speaker 24. COPYRIGHT: (C)2004,JPO
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