公开(公告)号：US5544324A

公开(公告)日：1996-08-06

申请号：US969911

申请日：1992-11-02

Applicant: Brian C. Edem ,  Debra J. Worsley

Inventor： Brian C. Edem ,  Debra J. Worsley

IPC: H04J3/12 ,  H04J3/14 ,  H04J3/22 ,  H04L12/44 ,  H04L12/64 ,  G06F13/36 ,  H04L5/22

CPC classification number: H04L12/44 ,  H04L12/6418 ,  H04L2012/6427 ,  H04L2012/6437 ,  H04L2012/644 ,  H04L2012/6448 ,  H04L2012/6459

Abstract: A data communication system, such as a local area network, is provided with a capability of transmitting isochronous data. Preferably the system conveys both isochronous data and non-isochronous data by time-multiplexing the data into a recurring frame structure on a four-bit nibble basis. Bandwidth available for a particular isochronous source/sink is selectable and sustainable with a predefined granularity. Data rates can be adjusted by using "rate adjustment" time slots which can transmit data in some frames and "no data" in other frames. A particular time frame or template is provided which accommodates isochronous data, non-isochronous data, D channel data, maintenance data and frame synchronization signals. Non-isochronous operation and bandwidth allocation is independent and transparent to the isochronous data activity. Frame timing can be coordinated with one or more reference clock signals, e.g., from a public telephone or wide area network. A buffer can convert between the source/sink or hub circuitry data rates and the data rates for transmission over the physical media which, for a given type of data, is discontinuous on a small time scale.

Abstract translation: 诸如局域网的数据通信系统被提供有传输同步数据的能力。 优选地，系统通过以四位半字节的方式将数据进行时分复用为循环帧结构来传送同步数据和非等时数据。 可用于特定等时源/汇的带宽可以预定义的粒度来选择和持续。 可以通过使用可以在某些帧中传送数据的“速率调整”时隙和其他帧中的“无数据”来调整数据速率。 提供了一个特定的时间框架或模板，其中包含等时数据，非等时数据，D通道数据，维护数据和帧同步信号。 非同步操作和带宽分配对于同步数据活动是独立的和透明的。 帧定时可以与一个或多个参考时钟信号协调，例如来自公共电话或广域网。 缓冲器可以在源/汇或集线器电路数据速率和数据速率之间进行转换，以便通过物理介质进行传输，对于给定类型的数据，它们在小时间尺度上是不连续的。

公开(公告)号：US5349684A

公开(公告)日：1994-09-20

申请号：US918871

申请日：1992-07-22

Applicant: Brian C. Edem ,  Richard P. Helliwell ,  John T. Johnston ,  Richard F. Lary

Inventor： Brian C. Edem ,  Richard P. Helliwell ,  John T. Johnston ,  Richard F. Lary

IPC: G06F7/24 ,  G06F7/36

CPC classification number: G06F7/36 ,  Y10S707/99931 ,  Y10S707/99937

Abstract: A speed and memory control system and method for use with a sort accelerator having a rebound sorter. The speed and memory control system includes a variable length shift register which utilizes circulating RAM indexing, tag extraction lookahead features to speed up access of records, and merge lookahead and memory management features to provide quick and effective storage of records.

Abstract translation: 一种用于具有回弹分拣机的排序加速器的速度和记忆控制系统和方法。 速度和存储器控制系统包括可变长度移位寄存器，其利用循环RAM索引，标签提取前瞻特征来加速记录的访问，并且合并前瞻和存储管理特征以提供记录的快速和有效的存储。

公开(公告)号：US5111465A

公开(公告)日：1992-05-05

申请号：US374349

申请日：1989-06-30

Applicant: Brian C. Edem ,  Richard P. Helliwell ,  John T. Johnston ,  Richard F. Lary

Inventor： Brian C. Edem ,  Richard P. Helliwell ,  John T. Johnston ,  Richard F. Lary

IPC: G06F11/10 ,  G06F7/00 ,  G06F7/24 ,  G06F11/08

CPC classification number: G06F11/08 ,  G06F11/10 ,  G06F7/00

Abstract: A data integrity checking system and method for use with a sort accelerator having a rebound sorter as a merger. The data integrity checking system checks the integrity of data which has been processed by a sorting system wherein unsorted data has been received from and sorted data has been delivered to a host processor. Parity valves and checksum schemes are used. Sorted data is also checked for proper sorting by a sort order checker.

Abstract translation: 一种数据完整性检查系统和方法，用于具有反弹分类器作为合并的排序加速器。 数据完整性检查系统检查已经由分类系统处理的数据的完整性，其中已经接收到未排序的数据，并且已经将数据排序到主处理器。 使用平衡阀和校验和方案。 排序数据也会被排序顺序检查器进行正确排序。

公开(公告)号：US08464093B1

公开(公告)日：2013-06-11

申请号：US10934928

申请日：2004-09-03

Applicant: Erik R. Swenson ,  Brian C. Edem ,  Thuan D. Nguyen ,  Khoi D. Vu

Inventor： Erik R. Swenson ,  Brian C. Edem ,  Thuan D. Nguyen ,  Khoi D. Vu

IPC: G06F11/10

CPC classification number: G06F11/108 ,  G06F11/1004 ,  G06F11/1044

Abstract: A memory array comprises N+1 memory elements. N memory elements store data and one or more error check bits respectively derived from the stored data. A separate N+1 memory element stores parity bits generated from the data stored in the N memory elements. These parity bits are stored in. To recover from data errors, data in each N memory element are first checked using their respective error check bits. If faulty data are detected in one of the N memory elements, an exclusive-or operation is performed involving data in the remaining N−1 memory elements and parity bits in the N+1 memory element. This recovers the faulty data in the one memory element.

Abstract translation: 存储器阵列包括N + 1个存储元件。 N个存储器元件存储分别从存储的数据导出的数据和一个或多个错误校验位。 单独的N + 1个存储元件存储从存储在N个存储元件中的数据生成的奇偶校验位。 这些奇偶校验位被存储。为了从数据错误中恢复，首先使用各自的错误校验位来检查每个N个存储器元件中的数据。 如果在N个存储器元件之一中检测到有故障的数据，则执行涉及N + 1个存储元件中的剩余N-1个存储元件和奇偶校验位中的数据的异或运算。 这恢复了一个存储器元件中的故障数据。

公开(公告)号：US5566169A

公开(公告)日：1996-10-15

申请号：US147359

申请日：1993-11-01

Applicant: Geetha N. K. Rangan ,  Debra J. Worsley ,  Richard Thaik ,  Brian C. Edem

Inventor： Geetha N. K. Rangan ,  Debra J. Worsley ,  Richard Thaik ,  Brian C. Edem

IPC: F02B75/02 ,  H04L12/44 ,  H04L12/64 ,  H04J3/14

CPC classification number: H04L12/44 ,  H04L12/6418 ,  F02B2075/025 ,  H04L2012/644 ,  H04L2012/6454 ,  H04L2012/6459

Abstract: A data communication system, such as a local area network, is provided with a capability of transmitting isochronous data. Preferably the system conveys both isochronous data and non-isochronous data by time-multiplexing the data into a recurring frame structure on a four-bit nibble basis. An efficient encoding scheme permits transmission of both isochronous and non-isochronous data over existing media, such as twisted pair, without degrading bandwidth previously achieved for non-isochronous data over the same media, such as using an ethernet system. Bandwidth available for a particular isochronous source/sink is selectable and sustainable with a predefined granularity. The arriving data is de-multiplexed at the hub into separate channels for handling the separate streams by appropriate hardware. Preferably, the present invention can be implemented in a fashion that is transparent to already-installed media access controllers. Preferably, some components of the system can detect the frame-transmission capability of other components and, if such capability is lacking, can fall back to a mode compliant with existing capabilities.

公开(公告)号：US5521928A

公开(公告)日：1996-05-28

申请号：US439440

申请日：1995-05-11

Applicant: Debra J. Worsley ,  Brian C. Edem ,  Michael S. Evans

Inventor： Debra J. Worsley ,  Brian C. Edem ,  Michael S. Evans

IPC: F02B75/02 ,  H04L12/44 ,  H04L12/64 ,  H04J3/06 ,  H04L12/427

CPC classification number: H04L12/6418 ,  H04L12/44 ,  F02B2075/025 ,  H04L2012/644 ,  H04L2012/6454 ,  H04L2012/6459

Abstract: An apparatus and method for transferring data between two entities in a time slot interchange fashion. The apparatus and method includes a buffer memory comprised of three sections to accommodate up to one cycle of skew between the two independently operating entities. Cycle start detection logic coupled to the two entities controls or, as implemented in the preferred embodiment, designates a physical location within the buffer memory for each of the three sections upon receipt of cycle start reference signals from the two entities.

Abstract translation: 一种用于以时隙交换方式在两个实体之间传送数据的装置和方法。 该装置和方法包括缓冲存储器，其由三个部分组成，以容纳两个独立操作实体之间的多达一个歪斜周期。 或者，如在优选实施例中所实施的，循环启动检测逻辑，在从两个实体接收到周期开始参考信号时，为三个部分中的每一个指定缓冲存储器内的物理位置。

公开(公告)号：US5319651A

公开(公告)日：1994-06-07

申请号：US24795

申请日：1993-03-01

Applicant: Brian C. Edem ,  Richard P. Helliwell ,  John T. Johnston ,  Richard F. Lary

Inventor： Brian C. Edem ,  Richard P. Helliwell ,  John T. Johnston ,  Richard F. Lary

IPC: G06F11/10 ,  G06F7/00 ,  G06F7/24 ,  G06F11/08 ,  H03M13/00

CPC classification number: G06F11/08 ,  G06F11/10 ,  G06F7/00

Abstract: A data integrity checking system and method for use with a sort accelerator having a rebound sorter as a merger. The data integrity checking system checks the integrity of data which has been processed by a sorting system wherein unsorted data has been received from and sorted data has been delivered to a host processor. Parity valves and checksum schemes are used. Sorted data is also checked for proper sorting by a sort order checker.

Abstract translation: 一种数据完整性检查系统和方法，用于具有反弹分类器作为合并的排序加速器。 数据完整性检查系统检查已经由分类系统处理的数据的完整性，其中已经接收到未排序的数据，并且已经将数据排序到主处理器。 使用平衡阀和校验和方案。 排序数据也会被排序顺序检查器进行正确排序。

公开(公告)号：USRE39116E1

公开(公告)日：2006-06-06

申请号：US09286679

申请日：1999-04-01

Applicant: Ramin Shirani ,  Brian C. Edem

Inventor： Ramin Shirani ,  Brian C. Edem

IPC: H04Q1/30

CPC classification number: H04L29/06 ,  H04L12/44 ,  H04L12/6418 ,  H04L49/205 ,  H04L49/351 ,  H04L69/18 ,  H04L69/323 ,  H04L2012/6437 ,  H04L2012/6451 ,  H04L2012/6454 ,  H04L2012/6459

Abstract: Support for a mixed network environment is provided which can contain multiple isochronous and/or non-isochronous LAN protocols such as Isochronous-Ethernet. Ethernet, isochronous-token ring, token ring, other isochronous-LAN or other LAN Systems. Support for a mixed environment includes a protocol detection mechanism which is embodied in a handshaking scheme. This handshaking scheme determines the signalling capability at the end points of the link and implements the correct protocol. This enables isochronous nodes and hubs to automatically detect the presence of Ethernet, token ring, or other LAN equipment at the other and of the network cable. If this detection occurs, the isochronous LAN equipment will fall-back to a LAN compliant mode of operation. Typically, only the hub will have the capability of operating at different networking modes, such as Ethernet, Token Ring isochronous modes. The hub will listen for some form of identification from the attached nodes as to the type of service to provide—isochronous or non-isochronous: Ethernet, token ring or other LAN service.

Abstract translation: 提供对混合网络环境的支持，其可以包含多个等时和/或非等时同步LAN协议，诸如等时以太网。 以太网，等时令牌环，令牌环，其他同步网或其他LAN系统。 对混合环境的支持包括以握手方式体现的协议检测机制。 该握手方案确定链路端点的信令能力，并实现正确的协议。 这使得同步节点和集线器能够自动检测网络电缆的另一个和网络上的以太网，令牌环或其他LAN设备的存在。 如果发生此检测，同步LAN设备将落后于LAN兼容操作模式。 通常，只有集线器将具有在不同组网模式下工作的能力，例如以太网，令牌环等时模式。 集线器将从连接的节点监听关于提供等时或非等时的服务类型的某种形式的标识：以太网，令牌环或其他LAN服务。

公开(公告)号：US5687174A

公开(公告)日：1997-11-11

申请号：US430143

申请日：1995-04-26

Applicant: Brian C. Edem ,  Debra J. Worsley

Inventor： Brian C. Edem ,  Debra J. Worsley

IPC: H04L12/28 ,  H04L12/44 ,  H04L12/56 ,  H04L12/64 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L12/6418 ,  H04L12/44 ,  H04L29/06 ,  H04L49/351 ,  H04L69/323 ,  H04L2012/6437 ,  H04L2012/6451 ,  H04L2012/6454 ,  H04L2012/6459 ,  H04L69/18

Abstract: Support for a mixed network environment is provided which can contain multiple isochronous and/or non-isochronous LAN protocols such as isochronous-ethernet, ethernet, isochronous-token ring, token ring, other isochronous-LAN or other LAN systems. Support for a mixed environment includes a protocol detection mechanism which is embodied in a handshaking scheme. This handshaking scheme determines the signalling capability at the end points of the link and implements the correct protocol. This enables isochronous nodes and hubs to automatically detect the presence of ethernet, token ring, or other LAN equipment at the other end of the network cable. If this detection occurs, the isochronous LAN equipment will fall-back to a LAN compliant mode of operation. Typically, only the hub will have the capability of operating in different networking modes, such as ethernet, Token Ring isochronous modes. The hub will listen for some form of identification from the attached nodes as to the type of service to provide--isochronous or non-isochronous; ethernet, token ring or other LAN service.

Abstract translation: 提供对混合网络环境的支持，其可以包含多个等时和/或非等时LAN协议，诸如等时以太网，以太网，等时令牌环，令牌环，其他同步LAN或其他LAN系统。 对混合环境的支持包括以握手方式体现的协议检测机制。 该握手方案确定链路端点的信令能力，并实现正确的协议。 这使得同步节点和集线器能够自动检测网络电缆另一端的以太网，令牌环或其他LAN设备的存在。 如果发生此检测，同步LAN设备将落后于LAN兼容操作模式。 通常，只有集线器将具有在不同组网模式下运行的能力，例如以太网，令牌环等时模式。 集线器将从连接的节点收听某种形式的标识，以提供提供同步或非同步的服务类型; 以太网，令牌环或其他LAN服务。

公开(公告)号：US5668811A

公开(公告)日：1997-09-16

申请号：US486110

申请日：1995-06-07

Applicant: Debra J. Worsley ,  Brian C. Edem

Inventor： Debra J. Worsley ,  Brian C. Edem

IPC: F02B75/02 ,  H04L12/44 ,  H04L12/64 ,  H04J3/07 ,  H04L12/43

CPC classification number: H04L12/44 ,  H04L12/6418 ,  F02B2075/025 ,  H04L2012/644 ,  H04L2012/6454 ,  H04L2012/6459

Abstract: A data communication system, such as a local area network, is provided with a capability of transmitting isochronous data. Preferably the system conveys both isochronous data and non-isochronous data by time-multiplexing the data into a recurring frame structure on a four-bit nibble basis. An efficient encoding scheme permits transmission of both isochronous and non-isochronous data over existing media, such as twisted pair, without degrading bandwidth previously achieved for non-isochronous data over the same media, such as using an ethernet system. Bandwidth available for a particular isochronous source/sink is selectable and sustainable with a predefined granularity. The arriving data is de-multiplexed at the hub into separate channels for handling the separate streams by appropriate hardware. Preferably, the present invention can be implemented in a fashion that is transparent to already-installed media access controllers. Preferably, some components of the system can detect the frame-transmission capability of other components and, if such capability is lacking, can fall back to a mode compliant with existing capabilities.

Abstract translation: 诸如局域网的数据通信系统被提供有传输同步数据的能力。 优选地，系统通过以四位半字节的方式将数据进行时分复用为循环帧结构来传送同步数据和非等时数据。 有效的编码方案允许在诸如双绞线之类的现有介质上传输同步和非同步数据，而不会降低先前通过同一介质（例如使用以太网系统）对非同步数据实现的带宽。 可用于特定等时源/汇的带宽可以预定义的粒度来选择和持续。 到达的数据在集线器处被解复用为单独的信道，以通过适当的硬件来处理单独的流。 优选地，本发明可以以对已经安装的媒体访问控制器透明的方式来实现。 优选地，系统的一些组件可以检测其他组件的帧传输能力，并且如果缺乏这种能力，则可以回到符合现有能力的模式。