Character information telephone
The present invention belongs to the field of communication and relates to a text information transmitting telephone set. In transmission side, text information codes are transferred into special audio signal (such as double-tone multiple-freq. signal), which is transmitted in specific communication...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention belongs to the field of communication and relates to a text information transmitting telephone set. In transmission side, text information codes are transferred into special audio signal (such as double-tone multiple-freq. signal), which is transmitted in specific communication protocol through telephone line and exchange to the receiving side where the audio signal is restored through code transfer into text information. The present invention can carry out fast interactive transmission and is used in information can carry out fast interactive transmission and is used ininformation consultation, paging, mobile communication and other fields needing text information transmission. |
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