发明名称 CRESCENDO TELEPHONE RINGER
摘要 Crescendo telephone ringers and methods of providing a crescendo telephone ring signal. The crescendo telephone ringer provides a gradual increase in audible ringing volume as a sequence of incoming electrical ring signals is detected. According to one embodiment, upon receipt of an incoming call, a first audible ring signal corresponding to a first detected electrical ring signal is set to a minimum volume. Subsequent audible ring signals corresponding to subsequent detected electrical ring signals are set to increasing volume levels, and finally to a maximum ringer volume.
申请公布号 WO2005013584(A3) 申请公布日期 2005.03.17
申请号 WO2004US24573 申请日期 2004.07.28
申请人 TELEDEX LLC;LESNIAK, RONALD, S.;HERMANSON, SPENCER, L.;BAKALEYNIK, MAXIM;JAUREGUI, MARIO, E. 发明人 LESNIAK, RONALD, S.;HERMANSON, SPENCER, L.;BAKALEYNIK, MAXIM;JAUREGUI, MARIO, E.
分类号 H04M19/04 主分类号 H04M19/04
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