公开(公告)号：US06639899B1

公开(公告)日：2003-10-28

申请号：US09417834

申请日：1999-10-14

申请人： Randall Allan Law ,  Steven Douglas Margerm ,  Andre Poulin ,  Robert Morton ,  Steve Driediger ,  Jason Sterne ,  Pual Nadj

发明人： Randall Allan Law ,  Steven Douglas Margerm ,  Andre Poulin ,  Robert Morton ,  Steve Driediger ,  Jason Sterne ,  Pual Nadj

IPC分类号： G01R3108

CPC分类号： H04L49/3081 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/555 ,  H04L2012/5625 ,  H04L2012/5628 ,  H04L2012/5652 ,  H04Q11/0478

摘要： A method for verifying the integrity of data payloads of ATM cells passing through a switching device involves computing a payload integrity verification code for the payload portion of an ATM cell. The payload integrity verification code may be generated according to any error detection or error correction scheme. Preferably, the payload integrity verification code is stored in a portion of the standard ATM cell header which is not used while the cell is passing through the switching device. Preferably the payload integrity verification code is stored in all, or a portion of, the virtual path identifier or virtual connection identifier fields. The invention allows for the immediate identification of cells having corrupted payload data. Different actions may be taken on the detection of errors in the ATM cell header and ATM cell payloads respectively.

摘要翻译： 用于验证通过交换设备的ATM信元的数据有效载荷的完整性的方法包括计算ATM信元的有效载荷部分的净荷完整性验证码。 有效载荷完整性验证码可以根据任何错误检测或纠错方案生成。 优选地，有效载荷完整性验证码存储在标准ATM信元报头的一部分中，该小区在小区通过交换设备时未被使用。 优选地，净荷完整性验证码存储在虚拟路径标识符或虚拟连接标识符字段的全部或部分中。 本发明允许立即识别具有损坏的有效载荷数据的小区。 可以分别对ATM信元报头和ATM信元有效载荷中的错误的检测采取不同的动作。

公开(公告)号：US06771605B1

公开(公告)日：2004-08-03

申请号：US09476374

申请日：2000-01-03

申请人： Randall Allan Law ,  Steven Douglas Margerm ,  Andre Poulin ,  Robert Morton ,  Steve Driediger ,  Jason Sterne ,  Paul Nadj

发明人： Randall Allan Law ,  Steven Douglas Margerm ,  Andre Poulin ,  Robert Morton ,  Steve Driediger ,  Jason Sterne ,  Paul Nadj

IPC分类号： H04L100

CPC分类号： H04L49/3081 ,  H04L49/30 ,  H04L49/3009 ,  H04L49/555 ,  H04L2012/5625 ,  H04L2012/5628 ,  H04L2012/5652 ,  H04Q11/0478

摘要： A method for identifying faulty modules within telecommunication devices, such as ATM switches, involves generating and attaching verification codes, such as CRC or checksum codes, to data packets, such as ATM cells, at an upstream location, determining the integrity of the verification codes at each of multiple downstream location within a telecommunication device; and signaling an error condition where a corrupted data packet has been detected. A verification code may be written to a filed of a data packet which is not used while the ATM cell is in transit through the telecommunication device, thereby identifying a faulty module device without adversely affecting throughput.

摘要翻译： 用于识别诸如ATM交换机之类的电信设备内的故障模块的方法涉及在诸如ATM或ATM校验码之类的诸如CRC或校验和码之类的校验码生成和附加，确定验证码的完整性 在电信设备内的多个下游位置的每个处; 并发出已经检测到损坏的数据分组的错误状况。 当ATM信元通过电信设备进行传输时，验证码可以被写入到不使用的数据包的字段中，从而识别错误的模块设备而不会不利地影响吞吐量。

公开(公告)号：US06763024B1

公开(公告)日：2004-07-13

申请号：US09417833

申请日：1999-10-14

申请人： Randall Allan Law ,  Steven Douglas Margerm

发明人： Randall Allan Law ,  Steven Douglas Margerm

IPC分类号： H04L1228

CPC分类号： H04L49/3081 ,  H04L2012/5647 ,  H04Q11/0478

摘要： Methods and devices for detecting cell loss in telecommunication devices, such as ATM switches, attach cell loss detection information to cells in cell streams passing through the telecommunications devices. The cell loss detection information can trigger counters at up stream and down stream locations thereby avoiding the problem of synchronizing counters and ensuring that all cells to be counted have been flushed through the telecommunications device. The cell loss detection information can include a sequence number in a sequence of n sequence numbers where n is not a power of 2. Preferably n=2P−1, where P is an integer. Such series of sequence numbers allow the detection of lost cells in bursts consisting of a number of lost cells which is a power of 2. The methods and apparatus of the invention permit detection of unintentionally dropped cells in a call without the need to tear down the call.

摘要翻译： 用于检测诸如ATM交换机的电信设备中的小区丢失的方法和设备将小区丢失检测信息附加到通过电信设备的小区流中的小区。 信元丢失检测信息可以在上行流和下行位置触发计数器，从而避免同步计数器的问题，并确保要计数的所有单元已经通过电信设备刷新。 细胞损失检测信息可以包括n个序列号的序列中的序列号，其中n不是2的幂。优选n = 2-P，其中P是整数。 这样的一系列序列号允许在由多个丢失的小区组成的突发中检测到丢失的小区，该小区的功率为2.本发明的方法和装置允许在呼叫中检测到无意丢弃的小区，而不需要拆除 呼叫。

公开(公告)号：US07017059B2

公开(公告)日：2006-03-21

申请号：US10733275

申请日：2003-12-12

申请人： Randall Allan Law ,  Kent Graham Bodell ,  David Ray Londry

发明人： Randall Allan Law ,  Kent Graham Bodell ,  David Ray Londry

IPC分类号： G06F1/26 ,  G06F1/28 ,  G06F1/30

CPC分类号： G06F1/324 ,  G06F1/206 ,  G06F1/3203 ,  G06F1/3296 ,  H01L23/34 ,  H01L23/467 ,  H01L2924/0002 ,  Y02D10/126 ,  Y02D10/172 ,  H01L2924/00

摘要： An apparatus and method for replacing a CPU cooling system, for example, a fan, while a computer continues to operate has a mechanism for maintenance personnel to signal that cooling fan replacement is about to begin. In response to the signal, a control mechanism causes the CPU to shift into an operating mode in which heat generation is reduced. In some cases, a clock frequency of the affected CPU and/or a duty cycle at which the CPU operates is reduced. After the fan has been replaced the control mechanism returns the CPU to a normal operational mode, for example, by increasing the clock frequency or duty cycle to a normal level. During the fan replacement procedure, the CPU and its software continues to run at lower than normal performance.

摘要翻译： 在计算机继续操作的同时，用于更换CPU冷却系统（例如风扇）的装置和方法具有用于维护人员即将开始冷却风扇更换的信号的机构。 响应于该信号，控制机构使CPU转移到减少发热的操作模式。 在某些情况下，受影响的CPU的时钟频率和/或CPU运行的占空比减小。 在更换风扇之后，控制机构例如通过将时钟频率或占空比提高到正常水平，使CPU返回正常工作模式。 在风扇更换过程中，CPU及其软件继续运行低于正常性能。

公开(公告)号：US07219247B2

公开(公告)日：2007-05-15

申请号：US11327467

申请日：2006-01-09

申请人： Randall Allan Law ,  Kent Graham Bodell ,  David Ray Londry

发明人： Randall Allan Law ,  Kent Graham Bodell ,  David Ray Londry

IPC分类号： G06F1/00 ,  G06F1/26 ,  G06F1/32 ,  G05D23/00

CPC分类号： G06F1/324 ,  G06F1/206 ,  G06F1/3203 ,  G06F1/3296 ,  H01L23/34 ,  H01L23/467 ,  H01L2924/0002 ,  Y02D10/126 ,  Y02D10/172 ,  H01L2924/00

摘要： An apparatus and method for replacing a CPU cooling system, for example, a fan, while a computer continues to operate has a mechanism for maintenance personnel to signal that cooling fan replacement is about to begin. In response to the signal, a control mechanism causes the CPU to shift into an operating mode in which heat generation is reduced. In some cases, a clock frequency of the affected CPU and/or a duty cycle at which the CPU operates is reduced. After the fan has been replaced the control mechanism returns the CPU to a normal operational mode, for example, by increasing the clock frequency or duty cycle to a normal level. During the fan replacement procedure, the CPU and its software continues to run at lower than normal performance.

摘要翻译： 在计算机继续操作的同时，用于更换CPU冷却系统（例如风扇）的装置和方法具有用于维护人员即将开始冷却风扇更换的信号的机构。 响应于该信号，控制机构使CPU转移到减少发热的操作模式。 在某些情况下，受影响的CPU的时钟频率和/或CPU运行的占空比减小。 在更换风扇之后，控制机构例如通过将时钟频率或占空比提高到正常水平，使CPU返回正常工作模式。 在风扇更换过程中，CPU及其软件继续运行低于正常性能。