Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2011-03-22
2011-03-22
Hu, Jinsong (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S419000, C455S414100
Reexamination Certificate
active
07912510
ABSTRACT:
Disclosed is a method for controlling a terminal for a multimedia Ring Back Tone (RBT) service, which allows RBT sound sources previously set in a sound source-providing server by a called subscriber to be reproduced to an originating terminal by means of a Home Location Register (HLR) and the sound source-providing server for storing the RBT sound sources when a calling subscriber telephones the called subscriber, the HLR storing profile information including whether the subscriber has joined the RBT service. The method includes the steps of: (a) receiving a codec setup message including information (multimedia codec information) regarding a multimedia codec from a switching center; (b) deactivating a decoding function of a voice codec; (c) activating a decoding function of the multimedia codec; (d) receiving the RBT sound sources; and (e) decoding the RBT sound sources through the multimedia codec and reproducing the decoded RBT sound sources.
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Kim Seong-keun
Lee Myungsung
Lee Sangshin
Oh Se-hyun
Park Seongsoo
Baker & Hostetler LLP
Hu Jinsong
SK Telecom Co. Ltd.
Tran Mong-Thuy
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