公开(公告)号：EP0451711A2

公开(公告)日：1991-10-16

申请号：EP91105363.5

申请日：1991-04-04

申请人： Siemens Rolm Communications Inc. (a Delaware corp.)

发明人： Agah, Michael D. ,  Locke, Michael E.

IPC分类号： H04M3/28 ,  H04M7/00

CPC分类号： H04M3/28 ,  H04M1/24 ,  H04M7/0096

摘要： Method and apparatus for sectionalization and self--diagnosis of loop start and ground start trunk interfaces (10) without intervention from host telephone company equipment. The inventive method entails the use of an isolation relay (110) in the trunk circuit to isolate the trunk circuit electrically from the physical medium and to apply various signals to portions of the isolated trunk circuit to carry out specific self-diagnostic tests.

摘要翻译： 对分节和自我的方法和装置 - 循环启动和接地的诊断开始中继接口，而不从主机电话公司设备的干预。 本发明的方法需要在中继电路中使用的隔离继电器的到中继线电路电从物理介质隔离并施加各种信号的分离的中继电路的部分，以进行特定的自诊断测试。

公开(公告)号：EP0579927A3

公开(公告)日：1994-08-31

申请号：EP93108380.2

申请日：1993-05-24

申请人： Siemens Rolm Communications Inc. (a Delaware corp.)

发明人： Locke, Michael E. ,  Hagh-Panah, Morteza

IPC分类号： H04Q1/46

CPC分类号： H04Q1/46

摘要： By testing a received signal for power, frequency content, and stability, one can measurably improve DTMF signal detection and identification performance in voice store and forward systems. The algorithms described here have been found to be especially useful in minimizing talk-off. Further, the approach improves the performance with acoustic-type generators and minimizes transhybrid loss.

公开(公告)号：EP0451711A3

公开(公告)日：1993-05-05

申请号：EP91105363.5

申请日：1991-04-04

申请人： Siemens Rolm Communications Inc. (a Delaware corp.)

发明人： Agah, Michael D. ,  Locke, Michael E.

IPC分类号： H04M3/28 ,  H04M7/00

CPC分类号： H04M3/28 ,  H04M1/24 ,  H04M7/0096

摘要： Method and apparatus for sectionalization and self--diagnosis of loop start and ground start trunk interfaces (10) without intervention from host telephone company equipment. The inventive method entails the use of an isolation relay (110) in the trunk circuit to isolate the trunk circuit electrically from the physical medium and to apply various signals to portions of the isolated trunk circuit to carry out specific self-diagnostic tests.

公开(公告)号：EP0579927A2

公开(公告)日：1994-01-26

申请号：EP93108380.2

申请日：1993-05-24

申请人： Siemens Rolm Communications Inc. (a Delaware corp.)

发明人： Locke, Michael E. ,  Hagh-Panah, Morteza

IPC分类号： H04Q1/46

CPC分类号： H04Q1/46

摘要： By testing a received signal for power, frequency content, and stability, one can measurably improve DTMF signal detection and identification performance in voice store and forward systems. The algorithms described here have been found to be especially useful in minimizing talk-off. Further, the approach improves the performance with acoustic-type generators and minimizes transhybrid loss.

摘要翻译： 通过测试接收信号的功率，频率内容和稳定性，可以显着提高语音存储和转发系统中的DTMF信号检测和识别性能。 这里描述的算法已经被发现在使谈话最小化方面特别有用。 此外，该方法改善了声学型发生器的性能，并最大限度地减少了转换混合损耗。