Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-11-28
2006-11-28
Appiah, Charles N. (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S424000, C455S445000, C455S517000, C370S352000, C704S270000
Reexamination Certificate
active
07142881
ABSTRACT:
When communications between mobile terminals MS1and MS2are terminated, a TRAU1judges whether the communications between mobile terminals MS1and MS2are synchronous and notifies the mobile terminal MS1of this information through both a base station control center BSC1and a base station BTS. The mobile terminal MS1stores this information in relation to both the dial number of the mobile terminal MS2and a voice-encoding type used in communications with the mobile terminal MS2. Similarly, a TRAU2transmits the same information to the mobile terminal MS2and the mobile terminal MS2stores this information along with the dial number of the mobile terminal MS1and a voice-encoding type. When the mobile terminals MS1and MS2communicate the second time, communications are conducted using another voice-encoding type if the communications are asynchronous and using the previous voice-encoding type if the communications are synchronous, based on the information stored in this way.
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Imamura Toru
Sekino Toru
Appiah Charles N.
Fujitsu Limited
Katten Muchin & Rosenman LLP
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