Data communication method using mobile terminal
US6768904B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Jan 16, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for transmitting data in a data communication system having a mobile terminal and a transmitting/receiving terminal is enclosed. The method includes the steps of establishing a voice communication channel between the mobile terminal and a receiving data terminal in the data communication system set to a Voice mode, setting the data communication system to a Data mode without disconnecting the voice communication channel by transmitting a first connection request and a telephone number of the receiving data terminal by the transmitting data terminal to the mobile terminal, establishing a data communication channel between the transmitting and receiving data terminals, and transmitting data to the receiving data terminal through the data communication channel. By sending a receiving side telephone number to the mobile terminal together with a connection request signal (ATD command) as shown in the data communication method according to the present invention, a user can transmit or receive data more conveniently during the wireless conversation. The mode of the communication system can simply be converted from a Voice mode to a Data (Fax) mode by transmitting a ATD command to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.