公开(公告)号：EP0671721A2

公开(公告)日：1995-09-13

申请号：EP95300954.5

申请日：1995-02-15

申请人： CABLE & WIRELESS PLC

发明人： Moore, Iain Charles ,  Ellis, Christopher William Henderson

IPC分类号： G10L3/00 ,  G10L9/00 ,  H04M1/72

CPC分类号： G10L15/30 ,  G10L15/02 ,  H04M1/271 ,  H04M1/72522

摘要： A communication system comprising at least one mobile handheld telephone handset (1) adapted to communicate via a wireless telephony medium (3) with a telephone network handling system (3,4).
The handset comprises input devices (10,8,11-13) to receive input from a user and produce signals dependent thereupon, an onboard processor (7) to adapt speech input to produce a voice transmission signal as part of a telephone conversation with a third party; and an antenna (9) to transmit the voice transmission signal via the wireless telephony medium (3).
The telephone network handling system (3,4) comprises a receiver to receive the voice transmission signal, and means to forward the voice signal to a third party (29,30).
The handset further comprises a first processor to carry out a first processing step on selected input signals and produce data dependent thereupon which preserves predetermined information necessary to carry out a remote second processing step, an onboard processor to adapt the data according to a conventional wireless telephony protocol to produce a transmission signal, and an antenna (9) to transmit the transmission signal via the wireless telephony medium to the telephone network handling system.
The system further comprises a remote processor (35,36,51) adapted to receive and adapt the transmission signal from the telephone network handling system to regenerate the data, and to carry out a second processing step on the data and produce an output (43) dependent thereupon.