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1. 发明授权

US5448624A Telephone network performance monitoring method and system 失效
标题翻译：电话网络性能监控方法和系统
公开(公告)号：US5448624A
公开(公告)日：1995-09-05
申请号：US2876
申请日：1993-01-14
申请人： William C. Hardy , Thomas H. Johnson, Jr.
发明人： William C. Hardy , Thomas H. Johnson, Jr.
IPC分类号： H04M3/22 , H04M3/00 , H04M3/32 , H04M3/36 , H04M3/42 , H04M3/487 , H04M3/51 , H04M3/523 , H04Q3/545 , H04M1/64
CPC分类号： H04M3/36 , H04M3/323 , H04M3/51 , H04M3/523 , H04M2201/40 , H04M3/487
摘要： The present invention automatically initiates a telephone call to a given destination. At the same time, the progress of the call is monitored. The time of a ring back and voice answer received from the destination are recorded to an output file. At the end of the voice answer, a pre-recorded voice message is sent by the system to the person answering at the destination. Thereafter, the recorded data is used to determine the response time for that particular telephone destination. A plurality of destinations can be tested. A second embodiment of the present invention provides for the interactive correspondence between a remote evaluation unit and a called destination and the measurement of the performance characteristics of the telephone network.
摘要翻译：本发明自动发起到给定目的地的电话呼叫。同时监听呼叫进度。从目的地接收到的回铃和语音应答的时间被记录到输出文件。在语音应答结束时，系统向目的地应答的人发送预先录制的语音消息。此后，记录的数据用于确定该特定电话目的地的响应时间。可以测试多个目的地。本发明的第二实施例提供了远程评估单元和被叫目的地之间的交互对应以及电话网络的性能特征的测量。

2. 发明授权

US4718074A Dejitterizer method and apparatus 失效
标题翻译：除虫剂方法和装置
公开(公告)号：US4718074A
公开(公告)日：1988-01-05
申请号：US843668
申请日：1986-03-25
申请人： Earl L. Mannas , Thomas H. Johnson, Jr.
发明人： Earl L. Mannas , Thomas H. Johnson, Jr.
IPC分类号： G06F5/06 , H04J3/06 , H04L7/00
CPC分类号： H04J3/0626 , G06F5/06 , G06F2205/061
摘要： Dejitterizer apparatus is disclosed which uses a counter to track the number of bits stored in a 64-bit FIFO buffer. The counter is incremented on a falling edge of pulses of a timing pulse signal, nominally 6.176 Mhz, that coincides with a pulse of a jittered, nominally 1.554 Mhz, clock pulse signal derived from a jittered T1 signal applied to the input of the apparatus. The counter is decremented on the rising edge of pulses of a local clock pulse signal which is derived from the timing pulse signal. The bits are stored in the buffer in response to pulses of the jittered clock pulse signal. Output from the buffer in response to timing pulses derived from the local clock pulse signal is enabled when the counter indicates that the buffer is one-half full. The frequency of the local clock pulse signal is a function of the average frequency of the jittered clock pulse signal over more than sixteen jittered clock periods.
摘要翻译：公开了一种使用计数器来跟踪存储在64位FIFO缓冲器中的比特数的脱粒器装置。计数器在定时脉冲信号的脉冲的下降沿递增，标称为6.176Mhz，其与从施加到设备的输入端的抖动的T1信号得到的抖动的标称的1.554Mhz的脉冲信号相一致。计数器在定时脉冲信号导出的本地时钟脉冲信号的脉冲的上升沿递减。响应于抖动的时钟脉冲信号的脉冲，这些位被存储在缓冲器中。当计数器指示缓冲器为一半满时，使能响应于从本地时钟脉冲信号导出的定时脉冲从缓冲器输出。本地时钟脉冲信号的频率是超过十六个抖动时钟周期的抖动时钟脉冲信号的平均频率的函数。

3. 发明授权

US5241584A Response time evaluation unit 失效
标题翻译：响应时间评估单位
公开(公告)号：US5241584A
公开(公告)日：1993-08-31
申请号：US570778
申请日：1990-08-22
申请人： William C. Hardy , Thomas H. Johnson, Jr.
发明人： William C. Hardy , Thomas H. Johnson, Jr.
IPC分类号： H04M3/32 , H04M3/36 , H04M3/487 , H04M3/51 , H04M3/523
CPC分类号： H04M3/323 , H04M3/36 , H04M3/51 , H04M3/523 , H04M2201/40 , H04M3/487
摘要： The present invention automatically initiates a telephone call to a given destination. At the same time, the progress of the call is monitored. The time of a ring back and voice answer received from the destination are recorded to an output file. At the end of the voice answer, a pre-recorded voice message is sent by the system to the person answering at the destination. Thereafter, the recorded data is used to determine the response time for that particular telephone destination. A plurality of destinations can be tested.
摘要翻译：本发明自动发起到给定目的地的电话呼叫。同时监听呼叫进度。从目的地接收到的回铃和语音应答的时间被记录到输出文件。在语音应答结束时，系统向目的地应答的人发送预先录制的语音消息。此后，记录的数据用于确定该特定电话目的地的响应时间。可以测试多个目的地。

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