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US 2012/0071202 A1Published application
Method And System For Inputting DTMF Tones From A Smart Phone Keyboard
AssigneeResearch In Motion Limited
InventorYongqian Zheng
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Abstract
A smart phone is provided. The smart phone comprises a dual-tone multi-frequency (DTMF) key configured such that when the DTMF key is activated and when a key on a keypad on the smart phone is selected, the smart phone generates and transmits a DTMF tone corresponding to the selected key.
Claims20
A method for a smart phone to receive a data input, comprising:
- the smart phone receiving an activation of a dual-tone multi-frequency (DTMF) key on the smart phone;
- the smart phone entering a DTMF entry mode;
- the smart phone receiving a selection of a key on a keypad on the smart phone while in the DTMF entry mode;
- and
- the smart phone generating and transmitting a DTMF tone corresponding to the selected key.
2 more elements
A smart phone, comprising:
- a dual-tone multi-frequency (DTMF) key configured such that when the DTMF key is activated and when a key on a keypad on the smart phone is selected, the smart phone generates and transmits a DTMF tone corresponding to the selected key.
A method for entering data into a smart phone, comprising:
- activating a dual-tone multi-frequency (DTMF) key on the smart phone;
- and
- selecting a key on a keypad on the smart phone, wherein activating the DTMF key and selecting the key on the keypad cause the smart phone to generate and transmit a DTMF tone corresponding to the selected key.
Dependencies are inferred from the claim text.