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21. 发明授权

US5717692A Apparatus and method for generalized digital network signaling 失效
标题翻译：广义数字网络信令的装置和方法
公开(公告)号：US5717692A
公开(公告)日：1998-02-10
申请号：US631099
申请日：1996-04-12
申请人： Steven R. Blackwell
发明人： Steven R. Blackwell
IPC分类号： H04J3/12 , H04Q3/00
CPC分类号： H04J3/12 , H04Q3/0025
摘要： A data communication system (100) has a table driven state machine (300) for communicating call establishment and call termination information with a network switch (200). The table driven state machine (300) has a processor (310) and a memory (320) which stores a set of vectors defining a state transition table for a predetermined signaling type of the switch (200), such as trunk signaling or wink start signaling. The set of vectors defines state transitions and output signals, such as transmit AB signaling bits and a ring flag, based upon input signals of the predetermined signaling type, such as receive AB signaling bits and an off hook flag. The set of vectors is utilized by the processor (310) to receive signaling information from the switch, and to generate signaling information to the switch and other output signals to the data communication system, all corresponding to the predetermined signaling type. The sets of vectors may be varied based upon the selected predetermined signaling type utilized by the switch (200) and may be downloaded into the data communication system (100) or other data communication device.
摘要翻译：数据通信系统（100）具有用于与网络交换机（200）通信呼叫建立和呼叫终止信息的表驱动状态机（300）。表驱动状态机（300）具有处理器（310）和存储器（320），其存储定义用于交换机（200）的预定信令类型的状态转换表的一组向量，诸如中继信令或闪烁启动信令。矢量集合基于预定信令类型的输入信号（例如接收AB信令位和摘机标志）定义状态转换和输出信号，例如发送AB信令位和环形标志。所述处理器（310）利用所述向量集合来接收来自所述交换机的信令信息，并且向所述数据通信系统生成与所述数据通信系统相关的信令信息给所述交换机和其他输出信号，所述信号信息全部对应于所述预定信令类型。可以基于由开关（200）使用的所选择的预定信令类型来改变向量集合，并且可以将其下载到数据通信系统（100）或其他数据通信设备中。

22. 发明授权

US5598401A Apparatus and method for a digital data communications device to operate in an analog mode 失效
标题翻译：用于数字数据通信设备以模拟模式操作的装置和方法
公开(公告)号：US5598401A
公开(公告)日：1997-01-28
申请号：US407749
申请日：1995-03-21
申请人： Steven R. Blackwell , John T. Pearson , Charles C. Fridlin, IV
发明人： Steven R. Blackwell , John T. Pearson , Charles C. Fridlin, IV
IPC分类号： H04M11/06 , H04L1/22
CPC分类号： H04M11/06
摘要： An apparatus and method for a data communications device to selectively operate in a plurality of analog and digital modes, including as an analog modem, as a digital modem, and as a terminal adapter. The embodiments provide for a single, integrated data communications device to be configured and also subsequently reconfigured to provide for data communications over a variety of networks, including public switched telephone networks, leased line, and digital networks, including T1, E1 and ISDN. The various embodiments further provide for the selection of a primary digital operating mode while simultaneously providing for automatic reconfiguration for an auxiliary or back-up analog operating mode. The various embodiments also provide for signal simulation of the various networks, such that the actual coupled network is transparent to a data terminal transferring information through the data communication device to the network.
摘要翻译：一种用于数据通信设备的选择性操作的装置和方法，其以多个模拟和数字模式（包括作为模拟调制解调器，数字调制解调器）和终端适配器进行选择性操作。这些实施例提供了要配置的单个集成数据通信设备，并且随后被重新配置以提供包括公共交换电话网，租用线路和包括T1，E1和ISDN在内的数字网络的各种网络的数据通信。各种实施例进一步提供主要数字操作模式的选择，同时为辅助或备用模拟操作模式提供自动重新配置。各种实施例还提供各种网络的信号模拟，使得实际耦合网络对通过数据通信设备向网络传送信息的数据终端是透明的。

23. 发明授权

US5365545A MODEM-channel bank converter 失效
标题翻译： MODEM通道bank转换器
公开(公告)号：US5365545A
公开(公告)日：1994-11-15
申请号：US873320
申请日：1992-04-24
申请人： Steven R. Blackwell , Michael D. Fanning
发明人： Steven R. Blackwell , Michael D. Fanning
IPC分类号： H04L13/08 , H04B14/04 , H04L25/05 , H04L27/06 , H04M11/00 , H04B1/38
CPC分类号： H04L25/05
摘要： A converter (200) includes a transmit circuit that converts modem transmit samples at 9,600 samples/second into samples that may be transmitted by a T1 channel bank at 8,000 samples/second. The converter also includes a receive circuit that converts T1 channel bank receive samples at 8,000 samples/second into samples that may be received by a modem at 9,600 samples/second.
摘要翻译： A转换器（200）包括发射电路，其将调制解调器发送样本以9600采样/秒转换成可由8个采样/秒的T1信道组发送的采样。该转换器还包括一个接收电路，可以以8,000个采样/秒的速度将T1通道组接收采样转换成可由调制解调器以9600采样/秒的速率接收的采样。

24. 发明授权

US4969144A Adaptive passband echo canceller 失效
标题翻译：自适应通带回波消除器
公开(公告)号：US4969144A
公开(公告)日：1990-11-06
申请号：US292848
申请日：1989-01-03
申请人： Steven R. Blackwell , Steven E. Turner , Michael D. Turner , Jerry D. Moore
发明人： Steven R. Blackwell , Steven E. Turner , Michael D. Turner , Jerry D. Moore
IPC分类号： H04B3/23
CPC分类号： H04B3/23
摘要： A passband echo canceller achieves improved performance by providing a signal having a substantially uniform power spectral density to an adaptive echo canceller; the improved input signal is substantially uniform from approximately zero hertz to one half the operating or sample frequency of the echo canceller. This signal may comprise that range of frequencies occupied by the transmitted spectrum with added out of band noise.
摘要翻译：通带回波消除器通过向自适应回波消除器提供具有基本上均匀的功率谱密度的信号来实现改进的性能; 改进的输入信号从近似零赫兹到回声消除器的操作或采样频率的一半是基本均匀的。该信号可以包括由带外噪声带来的发射频谱占据的频率范围。

25. 发明授权

US06975676B1 Timing loop and method filter for a digital communications system 有权
标题翻译：数字通信系统的定时循环和方法滤波器
公开(公告)号：US06975676B1
公开(公告)日：2005-12-13
申请号：US09670047
申请日：2000-09-25
申请人： Richard L. Goodson , Steven R. Blackwell , Ayman Ghobrial , Cynthia Lin
发明人： Richard L. Goodson , Steven R. Blackwell , Ayman Ghobrial , Cynthia Lin
IPC分类号： H04B1/10 , H04L7/02
CPC分类号： H04L7/0054 , H04L7/0025
摘要： A timing loop is used in a data communications receiver to time lock the receiver to a transmitter sending data across a communications loop, where the receiver includes a linear equalizer for correcting signal distortion associated with the communications loop. The timing loop includes a timing equalizer filter functionally positioned to provide an equalized signal to the phase detector portion of the timing loop. After the linear equalizer trains, the equalizer coefficients are copied to the timing equalizer.
摘要翻译：在数据通信接收机中使用定时环来将接收机时间锁定到通过通信环路发送数据的发射机，其中接收机包括用于校正与通信环路相关联的信号失真的线性均衡器。定时环包括定时均衡器滤波器，其功能地定位成向定时环路的相位检测器部分提供均衡的信号。在线性均衡器列之后，均衡器系数被复制到定时均衡器。

26. 发明授权

US06725176B1 Loop diagnostics for ADSL systems 有权
标题翻译： ADSL系统的循环诊断
公开(公告)号：US06725176B1
公开(公告)日：2004-04-20
申请号：US10056786
申请日：2002-01-22
申请人： Guozhu Long , Jalil Kamali , Syed A. Abbas , Steven R. Blackwell
发明人： Guozhu Long , Jalil Kamali , Syed A. Abbas , Steven R. Blackwell
IPC分类号： G06F1516
CPC分类号： H04L43/50 , H04M3/304
摘要： The present invention provides techniques for performing loop diagnostics in DSL communication systems.
摘要翻译：本发明提供了用于在DSL通信系统中执行循环诊断的技术。

27. 发明授权

US06597479B1 Fiber quadrupler device method for providing full duplex communications to a synchronous optical network over a single optical fiber 有权
标题翻译：用于通过单个光纤向同步光网络提供全双工通信的光纤四重装置方法
公开(公告)号：US06597479B1
公开(公告)日：2003-07-22
申请号：US09427128
申请日：1999-10-22
申请人： Fred Chu , Kevin W. Schneider , Peter O. Brackett , W. Stuart Venters , Steven R. Blackwell
发明人： Fred Chu , Kevin W. Schneider , Peter O. Brackett , W. Stuart Venters , Steven R. Blackwell
IPC分类号： H04B1000
CPC分类号： H04B10/40 , H04J14/02 , H04J2203/0042
摘要： A fiber quadrupler device and method multiplexes the four optical fibers in a synchronous optical network (SONET) ring into a single linking fiber for full duplex optical transmission. The fiber quadrupler device optically couples two of the SONET fibers to a transmit converter for communications of downstream data from the SONET ring to a network element linked to the quadrupler by a single linking fiber. Two other SONET ring fibers are optically coupled to a receive converter for communications of upstream data from the network element over the single linking fiber to the SONET. An optical transceiver processes and directs the downstream and upstream signals to the receive and transmit converters. Either subcarrier modulation (SCM) or wavelength division multiplexing (WDM) is used in the receive and transmit converters.
摘要翻译：光纤四路器件和方法将同步光网络（SONET）环中的四根光纤复用到用于全双工光传输的单链路光纤中。光纤四路器件将两个SONET光纤光耦合到发射转换器，用于通过单个链接光纤将从SONET环到下游数据的通信连接到与四连接器相连的网络元件。两个其它SONET环形光纤被光耦合到接收转换器，用于将来自网络单元的上游数据通过单个链接光纤通信到SONET。光收发器处理并将下行和上行信号引导到接收和发射转换器。在接收和发射转换器中使用任一副载波调制（SCM）或波分复用（WDM）。

28. 发明授权

US5751974A Contention resolution for a shared access bus 失效
标题翻译：共享访问总线的争用解决方案
公开(公告)号：US5751974A
公开(公告)日：1998-05-12
申请号：US827123
申请日：1997-03-27
申请人： Steven R. Blackwell , Charles E. Polk , Jason N. Morgan
发明人： Steven R. Blackwell , Charles E. Polk , Jason N. Morgan
IPC分类号： G06F13/374 , H04L12/413 , H04J6/00
CPC分类号： G06F13/374 , H04L12/4135
摘要： Data communication stations 10, 12, 14 are connected by way of a shared bus 15 common to all the communication stations. When two stations attempt to access the shared bus simultaneously, a conflict resolution method if used to determine which of the two stations is allowed access to the bus 15. Each station seeking access to the bus 15 serially transmits its address. The priority of the stations is determined, and the station with priority is given access to the bus 15.
摘要翻译：数据通信站10,12,14通过所有通信站共用的共享总线15连接。当两个站同时尝试访问共享总线时，如果用于确定两个站中的哪一个被允许访问总线15，则冲突解决方法。每个寻求访问总线15的站顺序地发送其地址。确定站的优先级，优先站到达总线15。

29. 发明授权

US5661726A Advanced communication system architecture 失效
标题翻译：先进的通信系统架构
公开(公告)号：US5661726A
公开(公告)日：1997-08-26
申请号：US559887
申请日：1995-11-20
申请人： David Earl Wilder , Steven R. Blackwell , Charles E. Polk, Jr. , David Paul Nelson
发明人： David Earl Wilder , Steven R. Blackwell , Charles E. Polk, Jr. , David Paul Nelson
IPC分类号： H04J3/04 , H04L12/24 , H04L12/28 , H04L12/403 , H04L12/46 , H04L12/52 , H04Q11/04
CPC分类号： H04L12/403 , H04L12/28 , H04L12/4612 , H04L12/52 , H04Q11/0414 , H04L12/24 , H04L41/00
摘要： A communication system for coupling a plurality of data terminals to a telephone network has a time division multiplexed telephone network access bus, providing a plurality of time division slots containing data, coupled to the telephone network, and a digital terminal access bus coupled to the plurality of communication devices, each communication device being configurable to access any of the time division slots. A controller for configures each communication device to access a time division slot.
摘要翻译：用于将多个数据终端耦合到电话网络的通信系统具有时分多路复用的电话网络接入总线，提供耦合到电话网络的包含数据的多个时分时隙以及耦合到多个数字终端的数字终端接入总线的通信设备，每个通信设备可配置为访问任何时分时隙。用于配置每个通信设备以访问时分时隙的控制器。

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