公开(公告)号：US4975916A

公开(公告)日：1990-12-04

申请号：US225106

申请日：1988-07-26

申请人： Gerald H. Miracle ,  Richard A. Neuner ,  Lee H. Wilson

发明人： Gerald H. Miracle ,  Richard A. Neuner ,  Lee H. Wilson

IPC分类号： H04L7/00 ,  H04L7/08 ,  H04L25/49

CPC分类号： H04L25/4908

摘要： A system for bit character synchronization of an 8/10 bit code being deserialized is provided by a deserializer with a skip bit function input used to move a character boundary one bit at a time, and 8/10 code error detector, a zero disparity character detector and skip pulse generator. After character sychronism is lost, the skip pulse generator is permitted to generate a skip pulse if the following sequence occurs: all bits of the old character boundary have been flushed through the logic circuits, at least one non-zero disparity character has been detected, and an 8/10 code error is detected. After character synchronism is re-acquired, then the skip pulse generator is no longer permitted to generate a skip pulse.

公开(公告)号：US5133078A

公开(公告)日：1992-07-21

申请号：US392867

申请日：1989-08-11

申请人： Vahe A. Minassian ,  Gerald H. Miracle ,  Richard A. Neuner ,  Peter L. Potvin

发明人： Vahe A. Minassian ,  Gerald H. Miracle ,  Richard A. Neuner ,  Peter L. Potvin

IPC分类号： G06F13/38 ,  G06F5/16 ,  G06F13/12 ,  H04L13/10

CPC分类号： G06F5/16

摘要： An asynchronous high-speed data interface for coupling a serial channel to a parallel control unit. A first state machine, running synchronously with the channel transmitter clock, controls the filling of a pair of dual-port input buffers in alternating fashion with frame contents bytes from incoming serial frames that have been deserialized and decoded. A second state machine, running synchronously with a second clock that is asynchronous with the channel transmitter clock, controls the transfer of the frame contents bytes from the selected input buffer to one of a pair of output buffers en route to the control unit. Upon detecting the receipt of the third incoming frame contents byte, the first state machine sets a start latch, causing the second state machine to begin transferring data from the selected input buffer to the selected output buffer while the input buffer is still being filled. Means are provided for disregarding the frame contents bytes that have been transferred to the selected output buffer if the frame is ultimately aborted.

公开(公告)号：US5559972A

公开(公告)日：1996-09-24

申请号：US981930

申请日：1992-11-24

申请人： Maurice E. Carey ,  Gerald H. Miracle ,  James T. Moyer ,  Richard A. Neuner

发明人： Maurice E. Carey ,  Gerald H. Miracle ,  James T. Moyer ,  Richard A. Neuner

IPC分类号： G06F13/12 ,  G06F13/14 ,  G06F13/42

CPC分类号： G06F13/122

摘要： In a data processing system in which an extender unit interconnects the parallel bus of a control unit and a serial link of an extender channel, the channel and the extender unit send and receive serial frames that permit the extender unit to operate under the protocol of the parallel bus with either byte mode devices or non-byte mode devices. The control unit can be modified to operate with a byte mode device in data streaming, a high speed data transfer mode.

摘要翻译： 在其中扩展器单元将控制单元的并行总线和扩展器信道的串行链路互连的数据处理系统中，信道和扩展器单元发送和接收允许扩展器单元在协议的协议下操作的串行帧 并行总线与任一字节模式器件或非字节模式器件。 在数据流，高速数据传输模式中，可以修改控制单元以使用字节模式设备进行操作。

公开(公告)号：US5434980A

公开(公告)日：1995-07-18

申请号：US996370

申请日：1992-12-23

申请人： Daniel F. Casper ,  John R. Flanagan ,  Gerald H. Miracle ,  Richard A. Neuner ,  Peter L. Potvin

发明人： Daniel F. Casper ,  John R. Flanagan ,  Gerald H. Miracle ,  Richard A. Neuner ,  Peter L. Potvin

IPC分类号： G06F13/12 ,  G06F13/42

CPC分类号： G06F13/122

摘要： A device control unit operating under the protocol of a parallel bus is connected by a serial link to a channel that is primarily adapted to operate under a different protocol with device control units connected by a serial link. An extender unit interconnects the parallel bus and the serial link and performs the specific operations of the parallel bus protocol. The channel and the extender unit send serial frames on the link for data transfer and associated operations. These frames are constructed according to a protocol that provides an intermediate step in translating between the protocol of the serial control units and the protocol of the parallel control units. The channel is operable in either mode (by microcode) and the new protocol permits the serial channel mode to be independent of the protocol of the parallel control unit and it permits the two modes to be closely similar in many features. New operations using the protocol reduce the delays that would otherwise be required in the communications between the channel and the extender unit. The serial link can be made longer when the delays are reduced.

摘要翻译： 在并行总线的协议下工作的设备控制单元通过串行链路连接到主要适于在具有通过串行链路连接的设备控制单元的不同协议下操作的信道。 扩展单元将并行总线和串行链路互连，并执行并行总线协议的特定操作。 通道和扩展器单元在链路上发送串行帧以进行数据传输和相关操作。 这些帧是根据提供在串行控制单元的协议和并行控制单元的协议之间转换的中间步骤的协议构成的。 信道可以在任一模式（通过微代码）操作，并且新协议允许串行信道模式独立于并行控制单元的协议，并且允许两种模式在许多特征中是紧密相似的。 使用该协议的新操作减少了在通道和扩展器单元之间的通信中否则将需要的延迟。 当延迟减少时，可以使串行链路更长。

公开(公告)号：US5537238A

公开(公告)日：1996-07-16

申请号：US427374

申请日：1995-04-24

申请人： Frank J. Janniello ,  Richard A. Neuner

发明人： Frank J. Janniello ,  Richard A. Neuner

IPC分类号： H04J14/00 ,  H04B10/02 ,  H04B10/08 ,  H04J14/02

CPC分类号： H04B10/07

摘要： Method and apparatus for making wavelength and power adjustments to a laser in a wavelength division multiplex system includes an extender card containing fiber optic transmission devices and path attenuators is inserted in the system in place of a card containing the laser to be adjusted. The extender card includes switches to put the laser under adjustment in known states for making power adjustments and wavelength adjustments without affecting system operation. After adjustments have been made, the extender card is removed and the laser card is reinstalled in the system.

摘要翻译： 用于在波分复用系统中对激光器进行波长和功率调整的方法和装置包括包含光纤传输装置的扩展卡，并且将路径衰减器插入系统中，代替包含要调节的激光器的卡。 扩展卡包括用于将激光器调整为已知状态的开关，用于进行功率调整和波长调整，而不影响系统操作。 进行调整后，取出扩充卡，将激光卡重新安装在系统中。