Adaptable subscriber unit for interactive telephone applications
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United States of America Patent
Stats
-
May 6, 2003
Grant Date -
N/A
app pub date -
Dec 17, 1999
filing date -
Dec 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for telephone communications includes providing a protocol that defines a relation between predetermined graphic elements and respective sequences of dual-tone multi-frequency (DTMF) signals. A screen to be displayed is designed, including one or more of the graphic elements. An encoded representation of the screen is then generated using DTMF signals in accordance with the protocol. The encoded representation is transmitted over a telephone line to a telephone subscriber unit, whereby the one or more graphic elements are displayed by the subscriber unit responsive to the encoded representation of the screen.
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Family
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Cited Art Landscape
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