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1. 发明授权

US6163549A Synchronizing a central timing unit to an external link via a switching network 失效
标题翻译：通过交换网络将中央定时单元与外部链路同步
公开(公告)号：US6163549A
公开(公告)日：2000-12-19
申请号：US921677
申请日：1997-08-29
申请人： James R. Bortolini , Dominick Scordo
发明人： James R. Bortolini , Dominick Scordo
IPC分类号： H04J3/00 , H04J3/06 , H04Q3/00 , H04Q11/04
CPC分类号： H04J3/0685 , H04J3/0688
摘要： Synchronizing local timing units to a central timing unit to determine the difference in timing between external links and the local timing units so as to synchronize the centralized timing unit to the external links. This difference in timing is then transmitted to the central timing unit, which utilizes this information to adjust the timing of the central timing unit. The adjustment to the central timing unit brings it into synchronization with the selected external link. The local timing units are synchronized to the central timing unit via multiple timing paths set up through switching units within the network. Each switching unit switches one bit of data for each group of data being received on each of the external links. In addition, information received by each of the external links designating the accuracy of the external link is transmitted to the central timing unit so that the central timing unit can select the external link having the highest accuracy.
摘要翻译：将本地定时单元同步到中央定时单元，以确定外部链路与本地定时单元之间的定时差异，以使集中定时单元与外部链路同步。然后将该定时差发送到中央定时单元，该中央定时单元利用该信息来调整中央定时单元的定时。对中央定时单元的调整使其与选定的外部链路同步。本地定时单元经由通过网络内的交换单元建立的多个定时路径与中央定时单元同步。每个切换单元为在每个外部链路上接收的每组数据切换一位数据。此外，指定外部链路的精度的每个外部链路接收的信息被发送到中央定时单元，使得中央定时单元可以选择具有最高精度的外部链路。

2. 发明申请

US20140177658A1 Optical Wavelength-Selective Switch With A Bank Of Wavelength Convertors 有权
标题翻译：具有波长转换器组的光波长选择开关
公开(公告)号：US20140177658A1
公开(公告)日：2014-06-26
申请号：US13726382
申请日：2012-12-24
申请人： Aref Chowdhury , Dominick Scordo
发明人： Aref Chowdhury , Dominick Scordo
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0005 , H04J14/0212 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/003 , H04Q2011/0058
摘要： An apparatus includes a wavelength-selective optical switch able to route light between a first optical port and a plurality of second optical ports. The wavelength-selective optical switch includes a bank of optical wavelength-converters. Each wavelength converter of the bank is able to selectively optically couple an optical data stream on a wavelength-channel between the first optical port and individual ones of the second optical ports.
摘要翻译：一种装置包括能够在第一光学端口和多个第二光学端口之间路由光的波长选择性光学开关。波长选择光开关包括一组光波长转换器。银行的每个波长转换器能够选择性地光耦合在第一光学端口和第一光学端口上的波长通道之间的波长信道上的光学数据流。

3. 发明授权

US09319757B2 Optical wavelength-selective switch with a bank of wavelength convertors 有权
标题翻译：具有一组波长转换器的光波长选择开关
公开(公告)号：US09319757B2
公开(公告)日：2016-04-19
申请号：US13726382
申请日：2012-12-24
申请人： Aref Chowdhury , Dominick Scordo
发明人： Aref Chowdhury , Dominick Scordo
IPC分类号： H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0212 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/003 , H04Q2011/0058
摘要： An apparatus includes a wavelength-selective optical switch able to route light between a first optical port and a plurality of second optical ports. The wavelength-selective optical switch includes a bank of optical wavelength-converters. Each wavelength converter of the bank is able to selectively optically couple an optical data stream on a wavelength-channel between the first optical port and individual ones of the second optical ports.
摘要翻译：一种装置包括能够在第一光学端口和多个第二光学端口之间路由光的波长选择性光学开关。波长选择光开关包括一组光波长转换器。银行的每个波长转换器能够选择性地光耦合在第一光学端口和第一光学端口上的波长通道之间的波长信道上的光学数据流。

4. 发明授权

US4575860A Data clock recovery circuit 失效
标题翻译：数据时钟恢复电路
公开(公告)号：US4575860A
公开(公告)日：1986-03-11
申请号：US588359
申请日：1984-03-12
申请人： Dominick Scordo
发明人： Dominick Scordo
IPC分类号： H04L7/033 , H04L7/02
CPC分类号： H04L7/0338 , H04L7/0037
摘要： Clock recovery pulse signals for use in recovering transmitted data are generated by employing a digitally variable phase oscillator. The variable phase oscillator includes an oscillator having a substantially fixed frequency output signal, a phase encoder and a comparator. Coded phase values of the oscillator output signal are periodically generated by the phase encoder. These coded phase values are compared to a prescribed phase value to generate periodically clock recovery pulse signals. The prescribed phase value is obtained in one embodiment by storing the coded phase value being generated upon the occurrence of an incoming data transition and adding a predetermined phase value to it to center the clock recovery pulse signals substantially in the center of the incoming data eye pattern.
摘要翻译：通过采用数字可变相位振荡器产生用于恢复发送数据的时钟恢复脉冲信号。可变相位振荡器包括具有基本上固定的频率输出信号的振荡器，相位编码器和比较器。振荡器输出信号的编码相位值由相位编码器周期性地产生。将这些编码相位值与规定的相位值进行比较，以周期性地产生时钟恢复脉冲信号。在一个实施例中通过存储在出现进入数据转换时产生的编码相位值并且向其添加预定相位值以获得规定相位值，以将时钟恢复脉冲信号基本上置于输入数据眼图的中心。

5. 发明授权

US4558180A Programmable audio mixer 失效
标题翻译：可编程音频混音器
公开(公告)号：US4558180A
公开(公告)日：1985-12-10
申请号：US545162
申请日：1983-10-25
申请人： Dominick Scordo
发明人： Dominick Scordo
IPC分类号： H04M3/56 , H04Q11/04
CPC分类号： H04M3/561 , H04M3/568
摘要： Audio mixes for a plurality of conference locations are controllably obtained by using a matrix multiplication arrangement. The audio mixes for the individual conference locations are obtained by multiplying a dynamically determined gain matrix by an audio input matrix. Coefficient values in the gain matrix are dependent on whether incoming and outgoing transmission paths are assigned to a location and on whether an audio sample is being received or not.
摘要翻译：通过使用矩阵乘法装置可控地获得用于多个会议位置的音频混合。通过将动态确定的增益矩阵乘以音频输入矩阵来获得用于各个会议位置的音频混合。增益矩阵中的系数值取决于输入和输出传输路径是否被分配到一个位置以及是否正在接收音频样本。

6. 发明授权

US4529839A Multilocation video conference terminal including an arrangement to reduce disruption in video switching 失效
标题翻译：多位置视频会议终端包括减少视频切换中断的布置
公开(公告)号：US4529839A
公开(公告)日：1985-07-16
申请号：US545461
申请日：1983-10-25
申请人： John R. Colton , Dominick Scordo , David M. Simmons
发明人： John R. Colton , Dominick Scordo , David M. Simmons
IPC分类号： H04M3/56 , H04N7/15 , H04M11/00 , H04N7/14
CPC分类号： H04N7/152 , H04M3/561 , H04N7/15 , H04M3/568
摘要： In a Multilocation Conference Terminal (MLCT), disruptions in the video being viewed which are caused by switching from one conference location to another are minimized by delaying switching of the video signal until a so-called get ready control signal is received from the conference location to be viewed. The conference location transmits the get ready control signal a predetermined interval prior to transmitting a so-called fast video picture update in response to a request from a Multilocation Conference Terminal (MLCT). Additional possible disruptions in the video are eliminated by minimizing the number of fast video picture updates that are used to serve a multiplicity of requests from other conference locations. When multiple MLCTs are employed in a conference, the MLCTs communicate to each other the video select modes of all the conference locations in the conference, i.e., a manual select mode or an automatic select mode. Then, the video select mode information is used to minimize the number of fast video picture updates needed to serve conference locations in the automatic select mode.
摘要翻译：在多位会议终端（MLCT）中，通过延迟视频信号的切换直到从会议位置接收到所谓的准备就绪控制信号来使通过从一个会议位置切换到另一个会议地点而被观看的视频的中断被最小化被看待。响应于来自多位置会议终端（MLCT）的请求，在发送所谓的快速视频图像更新之前，会议位置以预定间隔发送准备就绪控制信号。通过最小化用于服务来自其他会议地点的多个请求的快速视频图像更新的数量来消除视频中的其他可能的中断。当在会议中使用多个MLCT时，MLCT将会议中所有会议地点的视频选择模式彼此通信，即手动选择模式或自动选择模式。然后，使用视频选择模式信息来最小化在自动选择模式下为会议位置服务所需的快速视频图像更新的数量。

7. 发明授权

US4873663A Control memory using recirculating shift registers for a TDM switching apparatus 失效
标题翻译：使用用于TDM交换设备的循环移位寄存器的控制存储器
公开(公告)号：US4873663A
公开(公告)日：1989-10-10
申请号：US185653
申请日：1988-04-25
申请人： Lawrence Baranyai , Dominick Scordo
发明人： Lawrence Baranyai , Dominick Scordo
IPC分类号： G11C19/00 , H04Q3/52 , H04Q11/04 , H04Q11/08
CPC分类号： H04Q11/08
摘要： A memory matrix for storing control words for controlling a common control time division multiplexed (TDM) switch is formed by employing a plurality of shift registers connected in recirculating configuration. Synchronization of control word time slots in the memory matrix to system timing is realized by storing a timing marker which is advanced in identical manner as the control word time slots. If synchronization between the system timing and control word time slots is interrupted, it is restored by controllably inhibiting advancing of the control word time slots and the stored timing marker.

8. 发明授权

US4633193A Clock circuit synchronizer using a frequency synthesizer controlled by a frequency estimator 失效
标题翻译：使用由频率估计器控制的频率合成器的时钟电路同步器
公开(公告)号：US4633193A
公开(公告)日：1986-12-30
申请号：US805124
申请日：1985-12-02
申请人： Dominick Scordo
发明人： Dominick Scordo
IPC分类号： H04L7/033 , H03L7/06 , H03L7/07 , H03L7/08 , H03L7/14 , H04J3/06 , H04L7/00
CPC分类号： H03L7/146 , H03L7/07 , H04J3/0688 , H04L7/0083
摘要： Synchronization of a local timing signal with an incoming reference timing signal is realized by employing a frequency estimator and frequency synthesizer in conjunction with a local fixed oscillator. The frequency estimator includes a first phase-locked loop including an integrator for generating a frequency estimate which is the difference between the frequency of the incoming reference timing signal and the frequency of the fixed oscillator signal. The phase value of the frequency estimate obtained by integrating the frequency estimate is supplied to a second phase-locked loop which includes a digitally controlled oscillator to generate the local timing signal. If the incoming reference timing signal is lost or if there is too large a variation in a phase error signal in the first phase-locked loop, the value of the frequency estimate is held constant. Consequently, the second phase-locked loop never free runs and the local timing signal remains in synchronization with the reference timing signal.
摘要翻译：通过采用频率估计器和频率合成器结合本地固定振荡器来实现本地定时信号与输入参考定时信号的同步。频率估计器包括第一锁相环，其包括用于产生频率估计的积分器，该频率估计是输入参考定时信号的频率与固定振荡器信号的频率之间的差。通过对频率估计进行积分而获得的频率估计的相位值被提供给包括数字控制振荡器以产生本地定时信号的第二锁相环。如果输入的参考定时信号丢失，或者如果第一锁相环中的相位误差信号的变化太大，则频率估计值保持不变。因此，第二锁相环永远不会自由运行，并且本地定时信号保持与参考定时信号同步。

9. 发明授权

US4591660A Common control audio decryptor 失效
标题翻译：公共控制音频解码器
公开(公告)号：US4591660A
公开(公告)日：1986-05-27
申请号：US545364
申请日：1983-10-25
申请人： Dominick Scordo
发明人： Dominick Scordo
IPC分类号： H04L9/00
CPC分类号： H04L9/0625 , H04L9/0637 , H04L2209/26 , H04L2209/601
摘要： Decryption of a plurality of simultaneously received, randomly phased signals is realized by employing a single data encryption standard module in a time shared manner. A plurality of process state counters, each of which is associated with a received signal, are employed to direct operations of the decryptor on a time shared basis. These operations include the generation on a time shared basis of so-called plain text data for each received signal, generation of corresponding encryption requests, and generation of cipher text data for each received signal which is used to decrypt associated received signal samples.
摘要翻译：通过以时间共享的方式采用单个数据加密标准模块来实现多个同时接收的随机定相信号的解密。采用与接收信号相关联的多个处理状态计数器来指导解密器在时间上的操作。这些操作包括基于用于每个接收到的信号的所谓明文数据的时间共享的生成，相应的加密请求的产生，以及用于解密相关联的接收信号样本的每个接收信号的密文数据的生成。

10. 发明授权

US4574374A Multilocation video conference terminal including rapid video switching 失效
标题翻译：多位视频会议终端包括快速视频切换
公开(公告)号：US4574374A
公开(公告)日：1986-03-04
申请号：US545363
申请日：1983-10-25
申请人： Dominick Scordo
发明人： Dominick Scordo
IPC分类号： H04M3/56 , H04N7/15 , H04Q11/04 , H04J3/08
CPC分类号： H04N7/15 , H04M3/561 , H04M3/568 , H04N7/152 , H04Q11/04
摘要： In a multilocation conference terminal for transmitting audio and video information to a plurality of remote locations, rapid video and non-disrupted audio switching are obtained by employing a plurality of single composite digital signals each including all the video information from an associated location and all of the audio mixes for all of the locations in a conference. Then, the composite signals are switched prior to conversion for transmission to one or more of the locations. Since each composite signal includes all the audio mixes for all of the locations, when video from anyone of the locations is selected for transmission to any of the locations, the audio mixes for those locations are also switched.
摘要翻译：在用于将音频和视频信息发送到多个远程位置的多分配会议终端中，通过采用多个单个复合数字信号来获得快速视频和非中断的音频切换，每个复合数字信号包括来自相关位置的所有视频信息和全部会议中所有位置的音频混合。然后，复合信号在转换之前被切换以传输到一个或多个位置。由于每个复合信号包括用于所有位置的所有音频混合，当来自任何位置的视频被选择用于传输到任何位置时，用于这些位置的音频混合也被切换。

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