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1. 发明授权

US5784558A Method and apparatus for testing of extended ISDN BRI service 失效
标题翻译：扩展ISDN BRI业务的测试方法和装置
公开(公告)号：US5784558A
公开(公告)日：1998-07-21
申请号：US635412
申请日：1996-04-26
申请人： Earl A. Emerson , Henry J. Gonzalez
发明人： Earl A. Emerson , Henry J. Gonzalez
IPC分类号： H04M3/22 , H04M3/28 , H04Q11/04 , H04L1/14 , H04J3/14
CPC分类号： H04M3/28 , H04M3/2254 , H04Q11/045 , H04Q2213/1316 , H04Q2213/13176 , H04Q2213/13202 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/13297
摘要： An enhanced ISDN-DP transmission device of the present invention allows for testing of ISDN-protocol communication paths using an existing DDS-protocol test infrastructure. The ISDN-DP unit receives a DDS test command and determines whether the command was intended for the immediate receiving unit or a tandem unit. If the command is intended for the immediate ISDN-DP unit, the unit processes the command. If the command is intended for another ISDN device in the transmission path, the ISDN-DP converts the DDS-protocol command to an ISDN-protocol command and transmits the converted ISDN command to an adjacent tandem ISDN device in the communication path in an upstream or downstream direction. After the test path is enabled, loopback testing is available on all available ISDN bandwidth, including the B1, B2 and D+ channels, from a DDS-protocol test set. DDS-protocol test access is available from a plurality of locations including: multiplexed bit stream access at a digital crossconnect switch; metallic access at a DS0 interface; faceplate access at the ISDN-DP unit.
摘要翻译：本发明的增强型ISDN-DP传输设备允许使用现有的DDS协议测试基础设施测试ISDN协议通信路径。 ISDN-DP单元接收DDS测试命令并确定该命令是用于立即接收单元还是串联单元。如果该命令用于立即ISDN-DP单元，则本机处理该命令。如果该命令用于传输路径中的另一个ISDN设备，则ISDN-DP将DDS协议命令转换为ISDN协议命令，并将转换的ISDN命令发送到上游或下游的通信路径中的相邻串联ISDN设备下游方向。启用测试路径后，可以从DDS协议测试集中对所有可用的ISDN带宽（包括B1，B2和D +通道）进行环回测试。 DDS协议测试访问可从多个位置获得，包括：数字交叉连接交换机处的多路复用位流访问; 在DS0接口进行金属接入; ISDN-DP设备的面板接入。

2. 发明授权

US5553059A Network interface unit remote test pattern generation 失效
标题翻译：网络接口单元远程测试模式生成
公开(公告)号：US5553059A
公开(公告)日：1996-09-03
申请号：US440297
申请日：1995-05-26
申请人： Earl A. Emerson , Henry J. Gonzalez , Kyung-Yeop Hong
发明人： Earl A. Emerson , Henry J. Gonzalez , Kyung-Yeop Hong
IPC分类号： G06F11/00 , G06F11/14 , G06F11/22 , G06F13/38 , H04B17/40 , H04L1/24 , H04L12/26 , H04J3/14
CPC分类号： H04L1/247 , G06F11/1402 , G06F11/22 , G06F13/38 , H04B17/401 , H04L1/241 , H04L1/243 , H04L1/244 , H04L12/2697 , H04L43/50
摘要： A system for isolating the direction of communication errors in the local loop of a digital data network is described. A Network Interface Unit (NIU) located at the customer premises typically has a loopback feature, allowing for Bit Error Rate Tests (BERT) to be performed on the local loop from a remote test system located on the data network. The NIU loopback test isolates transmission problems at the customer premises from problems on the local loop. The present invention adds test pattern generation capability to the NIU, allowing the remote test system to determine whether the transmission problem on the local loop is in the network to customer premises direction or in the customer premises to network direction.
摘要翻译：描述了用于隔离数字数据网络的本地环路中的通信错误的方向的系统。位于客户驻地的网络接口单元（NIU）通常具有环回功能，允许在位于数据网络上的远程测试系统的本地环路上执行误码率测试（BERT）。 NIU环回测试将客户端的传输问题与本地环路上的问题隔离开来。本发明向NIU添加测试模式生成能力，允许远程测试系统确定本地环路上的传输问题是否在网络中到客户驻地方向或者在客户驻地到网络方向。

3. 发明授权

US5726986A Digital communication system with intelligent channel units 失效
标题翻译：具有智能通道单元的数字通信系统
公开(公告)号：US5726986A
公开(公告)日：1998-03-10
申请号：US448700
申请日：1995-05-24
申请人： Earl A. Emerson , Mahesh P. Desai , Henry J. Gonzalez , Kyung-Yeop Hong , Martin L. Swim
发明人： Earl A. Emerson , Mahesh P. Desai , Henry J. Gonzalez , Kyung-Yeop Hong , Martin L. Swim
IPC分类号： H04J3/14 , H04L1/08 , H04Q3/00 , H04Q11/04 , H04J3/12
CPC分类号： H04Q3/00 , H04J3/14 , H04L1/08 , H04Q11/04
摘要： In a time division multiplex digital communication system, access devices are capable of generating and detecting data sequences that are normally suppressed by end user equipment for establishing in-band communications between the access device and selected intelligent channel units (ICU's ). An ICU initiates in-band communication with the access device by transmitting a service request sequence to the access device. The access device transmits a wake-up sequence to the ICU to establish in-band communication. Once established, in-band communications can then be used to accomplish automated provisioning, performance reporting, status reporting, alarm reporting as well as other important functions.
摘要翻译：在时分复用数字通信系统中，接入设备能够生成和检测由终端用户设备正常抑制的用于在接入设备和所选择的智能信道单元（ICU）之间建立带内通信的数据序列。 ICU通过向接入设备发送服务请求序列来发起与接入设备的带内通信。接入设备向ICU发送唤醒序列以建立带内通信。一旦建立起来，可以使用带内通信来实现自动配置，性能报告，状态报告，报警报告以及其他重要功能。

4. 发明授权

US5434866A Digital communication system with intelligent channel units 失效
标题翻译：具有智能通道单元的数字通信系统
公开(公告)号：US5434866A
公开(公告)日：1995-07-18
申请号：US118936
申请日：1993-09-09
申请人： Earl A. Emerson , Mahesh P. Desai , Henry J. Gonzalez , Kyung-Yeop Hong , Martin L. Swim
发明人： Earl A. Emerson , Mahesh P. Desai , Henry J. Gonzalez , Kyung-Yeop Hong , Martin L. Swim
IPC分类号： H04J3/14 , H04L1/08 , H04Q3/00 , H04Q11/04 , H04J3/00 , H04L1/16
CPC分类号： H04Q3/00 , H04J3/14 , H04L1/08 , H04Q11/04
摘要： In a time division multiplex digital communication system, access devices are capable of generating and detecting data sequences that are normally suppressed by end user equipment for establishing in-band communications between the access device and selected intelligent channel units (ICU's). In-band communication is initiated by transmitting a sequence comprising a plurality of first bytes for preventing inadvertent initiation of maintenance operations for digital devices in a particular time slot, followed by a plurality of second bytes in said time slot. In-band communications is established when the selected ICU receives a sequence comprising a plurality of said first bytes, a plurality of bytes which identify the select device and a plurality of said second bytes. Once established, in-band communications can then be used to accomplish automated provisioning, performance reporting, status reporting, alarm reporting as well as other important functions.
摘要翻译：在时分复用数字通信系统中，接入设备能够生成和检测由终端用户设备正常抑制的用于在接入设备和所选择的智能信道单元（ICU）之间建立带内通信的数据序列。通过发送包括多个第一字节的序列来启动带内通信，用于防止在特定时隙中数字设备的意外启动，随后在所述时隙中的多个第二字节。当选择的ICU接收到包括多个所述第一字节的序列，识别选择设备的多个字节和多个所述第二字节时，建立带内通信。一旦建立起来，可以使用带内通信来完成自动配置，性能报告，状态报告，报警报告以及其他重要功能。

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