Method, system and receiving terminal for processing information based on dual-tone multi-frequency
US9473937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2013 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Jun 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/72
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for processing information based on dual-tone multifrequency, and a receiving terminal are disclosed in the present document. The method includes: a sending terminal establishing a voice call with a receiving terminal; the sending terminal receiving input key information, encoding the key information into dual-tone multifrequency information, and transmitting the dual-tone multifrequency information and voice call audio information to the receiving terminal together; and the receiving terminal decoding and restoring the dual-tone multifrequency information to the key information; determining a type of the key information according to a preset key information judgment policy, and performing corresponding operations according to the key information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.