发明名称 |
System and method for the synchronized transmission of tone sequences |
摘要 |
A computer implemented method for transmitting dual tone multi-frequency (DTMF) tones is disclosed. The method includes sending an indication to a mobile device to start a cyclic ring tone including ring and pause periods. The delay incurred to send a DTMF tone to the mobile device is estimated. The server schedules the transmission of the DTMF tone to be received at the mobile device during a pause period of the cyclic ring tone and the DTMF tone is sent as scheduled.
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申请公布号 |
US8260280(B2) |
申请公布日期 |
2012.09.04 |
申请号 |
US20100693108 |
申请日期 |
2010.01.25 |
申请人 |
LIM MIRANDA BING YING;OLIVER BRIAN ALEXANDER;SIDDIQUE GIBRAN;KRAMARENKO VALENTINA IQOREVNA;RESEARCH IN MOTION LIMITED |
发明人 |
LIM MIRANDA BING YING;OLIVER BRIAN ALEXANDER;SIDDIQUE GIBRAN;KRAMARENKO VALENTINA IQOREVNA |
分类号 |
H04M3/00;H04M1/24;H04W4/00 |
主分类号 |
H04M3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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