-
公开(公告)号：EP0004182A2
公开(公告)日：1979-09-19
申请号：EP79300342.7
申请日：1979-03-07
申请人： THE POST OFFICE
发明人： Groves, Ian Stanley , Guard, David Robert , Bunting, John Graham , Rowlands, Christopher Edmund , Powter, Edwin John , Holmes, David William James , Trott, Graham John
IPC分类号： H04M3/56
摘要： A control unit for controlling operation of a plurality of audio teleconference terminals comprises a plurality of inputs 110 which are connected each to a particular terminaL A speech detector 118 detects from which terminals speech signals are received and actuates switching means 111 to connect those terminals in open loop teleconference.
-
公开(公告)号：EP0004182B2
公开(公告)日：1990-07-25
申请号：EP79300342.7
申请日：1979-03-07
申请人： THE POST OFFICE
发明人： Groves, Ian Stanley , Guard, David Robert , Bunting, John Graham , Rowlands, Christopher Edmund , Powter, Edwin John , Holmes, David William James , Trott, Graham John
IPC分类号： H04M3/56
-
公开(公告)号：EP0004182B1
公开(公告)日：1982-01-06
申请号：EP79300342.7
申请日：1979-03-07
申请人： THE POST OFFICE
发明人： Groves, Ian Stanley , Guard, David Robert , Bunting, John Graham , Rowlands, Christopher Edmund , Powter, Edwin John , Holmes, David William James , Trott, Graham John
IPC分类号： H04M3/56
-
-
搜索结果
3 条记录 (耗时 0.012 秒)
筛选
AND
AND
过滤
NOT
NOT
扫码加群
