Invention Grant
- Patent Title: System and method for the synchronized transmission of tone sequences
- Patent Title (中): 用于同步传输音调序列的系统和方法
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Application No.: US12693108Application Date: 2010-01-25
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Publication No.: US08260280B2Publication Date: 2012-09-04
- Inventor: Miranda Bing Ying Lim , Brian Alexander Oliver , Gibran Siddique , Valentina Iqorevna Kramarenko
- Applicant: Miranda Bing Ying Lim , Brian Alexander Oliver , Gibran Siddique , Valentina Iqorevna Kramarenko
- Applicant Address: CA Waterloo
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo
- Agency: Novak Druce + Quigg LLP
- Main IPC: H04M3/00
- IPC: H04M3/00 ; H04M1/24 ; H04W4/00
Abstract:
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.
Public/Granted literature
- US20110183665A1 SYSTEM AND METHOD FOR THE SYNCHRONIZED TRANSMISSION OF TONE SEQUENCES Public/Granted day:2011-07-28
Information query
