公开(公告)号：US07167442B2

公开(公告)日：2007-01-23

申请号：US09862864

申请日：2001-05-22

申请人： John Courtney ,  David M. Goodman ,  Mark Carson

发明人： John Courtney ,  David M. Goodman ,  Mark Carson

IPC分类号： H04J3/14 ,  H04L12/26 ,  G06F11/00

CPC分类号： H04J14/0283 ,  H04J3/062 ,  H04J3/14 ,  H04J14/0227 ,  H04J14/0241 ,  H04J2203/006 ,  H04J2203/0094 ,  H04L1/22

摘要： The invention provides a method and apparatus for providing hitless protection switching in a synchronous transmission system. A switching apparatus is arranged to receive data signals on at least two transmission paths and to output data from a selected one of said transmission paths. The apparatus is arranged to align the respective received data signals so that a selector mechanism can select between corresponding elements of the received data signals. This arrangement allows hitless switching to be performed since there is no loss or repetition of signal elements when switching occurs. In a preferred embodiment, data in respect of each frame of each data signal is stored and the selector mechanism selects between paths on a frame-by-frame basis by comparing quality information carried by the data signals. This arrangement offers a very low end to end Bit Error Rate (BER) performance.

摘要翻译： 本发明提供一种用于在同步传输系统中提供无中断保护切换的方法和装置。 交换装置被布置为在至少两个传输路径上接收数据信号并从所选传输路径中选择一个输出数据。 该装置被布置成对齐各个接收的数据信号，使得选择器机构可以在接收到的数据信号的相应元件之间进行选择。 这种布置允许执行无中断切换，因为当发生切换时不存在信号元件的丢失或重复。 在优选实施例中，存储每个数据信号的每个帧的数据，并且选择器机构通过比较由数据信号携带的质量信息逐帧地选择路径之间。 这种布置提供了非常低的端到端误码率（BER）性能。

公开(公告)号：US07013348B1

公开(公告)日：2006-03-14

申请号：US10032412

申请日：2001-12-21

申请人： Mark Carson ,  David M. Goodman

发明人： Mark Carson ,  David M. Goodman

IPC分类号： G06F15/173

CPC分类号： G06F15/17375 ,  H04J3/0623 ,  H04J3/0685 ,  H04J3/1611

摘要： The invention concerns a switching apparatus comprising a low order switch subtended from a high order switch. In order to compensate for delays incurred by passing a data frame through the high order switch to the low order switch and delays incurred by the operation of the low order switch, the apparatus is arranged to advance the payload of a received data frame with respect to the fixed overhead of the data frame by an amount corresponding to the incurred delays. The low order switch uses the advanced payload to create an output frame, for sending to the high order switch, which is advanced with respect to the data frame that it receives. The apparatus, which is particularly suitable for use in SDH and/or SONET systems, obviates the need to provide an alignment apparatus, such as a VT/TU aligner between the high order switch and the subtended low order switch.

摘要翻译： 本发明涉及一种包括从高阶开关对向的低阶开关的开关装置。 为了补偿通过将数据帧通过高阶开关传递到低阶开关而引起的延迟和由低位开关的操作引起的延迟，该装置被安排为相对于 数据帧的固定开销与发生的延迟相对应。 低阶开关使用高级有效载荷来创建输出帧，用于发送到相对于其接收到的数据帧进行的高阶开关。 特别适用于SDH和/或SONET系统的装置避免了在高阶开关和对向的低阶开关之间提供诸如VT / TU对准器的对准装置的需要。

公开(公告)号：US4225880A

公开(公告)日：1980-09-30

申请号：US961280

申请日：1978-11-16

申请人： David M. Goodman

发明人： David M. Goodman

IPC分类号： H04N3/22 ,  H04N9/24 ,  H04N9/31 ,  H04N9/22

CPC分类号： H04N9/24 ,  H04N3/22 ,  H04N9/31

摘要： Programmable power supplies are made responsive to beam-index and timing signals in order to automatically control the size and position of the display on a cathode ray tube. The high voltage power supply is also made programmable, responsive to video signal content, to reduce the energy stored in the high voltage circuits. Savings in energy consumption are also obtained by efficiently modulating the target screen of a beam-index type color cathode ray tube. Energy lost at the target screen is less than 10% compared to approximately 70% for a conventional color tube, an improvement factor of 7:1 or more.

摘要翻译： 可编程电源响应于光束指数和定时信号，以便自动控制显示器在阴极射线管上的尺寸和位置。 高电压电源也可编程，响应于视频信号内容，以减少存储在高压电路中的能量。 通过有效地调制光束折射型彩色阴极射线管的目标屏幕也可以节省能量消耗。 在目标屏幕上损失的能量小于10％，而传统彩色管的损耗大约为70％，改进因子为7：1或更高。

公开(公告)号：US5479395A

公开(公告)日：1995-12-26

申请号：US243501

申请日：1994-05-16

申请人： David M. Goodman ,  Carlo Capaldo

发明人： David M. Goodman ,  Carlo Capaldo

IPC分类号： G06F13/372 ,  H04L12/40 ,  H04L12/413 ,  H04L12/407

CPC分类号： H04L12/40032 ,  H04L12/40143 ,  H04L12/40169

摘要： A multi-master serial bus system supporting, for example, up to 32 masters, and usable in applications requiring high-speed communications within a shelf. A plurality of nodes (2, 3, 4, 5) are interconnected by a highway (1) over which data is transmitted between the nodes. Each node has access control means (6) which ensures only one node accesses the highway at a time by means of an arbitration scheme. Data transmission involves an arbitration phase and a transmission phase and the highway comprises three lines, two of which are shared and perform respective functions in the arbitration and transmission phases (FIG. 1).

摘要翻译： 多主控串行总线系统，例如支持多达32个主控器，并且可用于需要架子内高速通信的应用中。 多个节点（2,3,4,5）通过高速公路（1）互连，数据在节点之间传输。 每个节点具有访问控制装置（6），其确保只有一个节点通过仲裁方案一次访问高速公路。 数据传输涉及仲裁阶段和传输阶段，高速公路包括三条线，其中两条共用，并在仲裁和传输阶段执行相应的功能（图1）。

公开(公告)号：US06870829B1

公开(公告)日：2005-03-22

申请号：US09537361

申请日：2000-03-29

申请人： David M. Goodman

发明人： David M. Goodman

IPC分类号： H04J3/12 ,  H04J3/16 ,  H04L12/66

CPC分类号： H04J3/1611 ,  H04J3/12

摘要： The invention relates to message signalling in a synchronous transmission apparatus using redundant pointer bits as a signalling channel within the apparatus. The preferred embodiment uses one or more of the new data flag (NDF) pointer bits as a signalling channel. The invention has particular, but not exclusive, application in the field of performance monitoring in a path protected telecommunications network, where the pointer bit signalling channel is used to communicate between data ports which transmission path is selected.

摘要翻译： 本发明涉及使用冗余指针位作为装置内的信令信道的同步传输装置中的消息信令。 优选实施例使用一个或多个新数据标志（NDF）指针比特作为信令信道。 本发明在路径保护电信网络中的性能监视领域中具有特殊但不排他的应用，其中指针位信令信道用于在选择传输路径的数据端口之间进行通信。

公开(公告)号：US3967315A

公开(公告)日：1976-06-29

申请号：US472154

申请日：1974-05-22

申请人： David M. Goodman

发明人： David M. Goodman

IPC分类号： G01T1/20 ,  H01J29/00 ,  H01J29/32 ,  H01J29/48 ,  H01J29/89 ,  H01J31/20 ,  H04N9/24 ,  H04N9/31

CPC分类号： G01T1/20 ,  H01J29/00 ,  H01J29/32 ,  H01J29/48 ,  H01J29/892 ,  H01J31/20 ,  H04N9/24 ,  H04N9/31 ,  H01J2231/121

摘要： Beam-index line-screen television display systems are disclosed for generating multi-color images throughout the size range from small direct view cathode ray tubes to projection type wall screen configurations. The image in the small screen display is generated by a scanning electron beam whereas the image generated in the large screen configuration is developed bY a scanning optical beam. In both cases the excitation of the image producing target screen is synchronized by beam-indexing features which utilize optical index signals transmitted across the target screen.

摘要翻译： 公开了一种用于在从小型直视阴极射线管到投射型壁屏幕配置的整个尺寸范围内产生多色图像的光束折射线电视显示系统。 小屏幕显示中的图像由扫描电子束产生，而在大屏幕配置中产生的图像是扫描光束。 在这两种情况下，图像产生目标屏幕的激励通过利用在目标屏幕上传输的光学索引信号的光束索引特征来同步。

公开(公告)号：US4306248A

公开(公告)日：1981-12-15

申请号：US170727

申请日：1980-07-21

申请人： David M. Goodman

发明人： David M. Goodman

IPC分类号： H04N3/22 ,  H04N9/24 ,  H04N9/31 ,  H04N17/00 ,  H04N9/16

CPC分类号： H04N9/24 ,  H04N3/22 ,  H04N9/31

摘要： Programmable power supplies are made responsive to beam-index and timing signals in order to automatically control the size and position of the display on a cathode ray tube. The high voltage power supply is also made programmable, responsive to video signal content, to reduce the energy stored in the high voltage circuits. Savings in energy consumption are also obtained by efficiently modulating the target screen of a beam-index type color cathode ray tube. Energy lost at the target screen is less than 10% compared to approximately 70% for a conventional color tube, an improvement factor of 7:1 or more. Taking advantage of the above features, a multi-color display apparatus is disclosed which employs dual excitation of a planar target screen to provide high resolution information in monochrome together with a wide range of colors for enhancement of contrast and for improved information discrimination. Beam-indexing means are used to maintain the registration between the monochrome and color components of the information being displayed.

摘要翻译： 可编程电源响应于光束指数和定时信号，以便自动控制显示器在阴极射线管上的尺寸和位置。 高电压电源也可编程，响应于视频信号内容，以减少存储在高压电路中的能量。 通过有效地调制光束折射型彩色阴极射线管的目标屏幕也可以节省能量消耗。 在目标屏幕上损失的能量小于10％，而传统彩色管的损耗大约为70％，改进因子为7：1或更高。 利用上述特征，公开了一种多色显示装置，其采用平面目标屏幕的双重激励以提供单色的高分辨率信息以及用于增强对比度和改善信息辨别的宽范围的颜色。 波束索引装置用于维护正在显示的信息的单色和彩色分量之间的配准。