发明名称 In-band audio signaling
摘要 The vocoder in a digital cellular phone is used to create a status message indicating something that is happening in the cellular phone. That message can be noise, beeps, voice or other information. That information is played to the user to indicate the condition.
申请公布号 US6522878(B1) 申请公布日期 2003.02.18
申请号 US19990288043 申请日期 1999.04.07
申请人 DENSO CORPORATION 发明人 ANDREWS JOSEPH;EVANS TODD H.;VANHOOREBEKE MARK;CAMPBELL LOWELL
分类号 H04M1/56;H04M1/57;H04M1/725;(IPC1-7):H04Q7/20 主分类号 H04M1/56
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