The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 2012
Filed:
Jan. 25, 2010
Miranda Bing Ying Lim, Nepean, CA;
Brian Alexander Oliver, Fergus, CA;
Gibran Siddique, Toronto, CA;
Valentina Iqorevna Kramarenko, Toronto, CA;
Miranda Bing Ying Lim, Nepean, CA;
Brian Alexander Oliver, Fergus, CA;
Gibran Siddique, Toronto, CA;
Valentina Iqorevna Kramarenko, Toronto, CA;
Research In Motion Limited, Waterloo, CA;
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.