Laura Joyce Weaver

US Patent:

6892172, May 10, 2005

Filed:

Feb 16, 2000

Appl. No.:

09/505748

Inventors:

Raj Kumar Singh - Cary NC, US
Laura Ann Weaver - Chapel Hill NC, US

International Classification:

G06F017/50

US Classification:

703 14

Abstract:

This system represents a customizable simulation model of an ATM/SONET Framer for System Level Verification and Performance-Characterization. An Asynchronous Transfer Mode (ATM) data processing ASIC interfaces with a Media Access Control (MAC) device that presents an electrical data path interface, called Universal Test & Operations PHY Interface for ATM (UTOPIA), using ATM protocol on the ASIC side and simplex optical interfaces using Synchronous Optical Network (SONET) protocol on the network side. Such a MAC device, commonly referred to as ATM/SONET Framer, provides one Receive and one Transmit interface to the network at various SONET line rates such as 155. 52 Mbps (OC-3), 622. 08 Mbps (OC-12), 2488. 32 Mbps (OC-48), etc. The ATM and the SONET interfaces operate on different clock frequencies and thus represent two distinct clocking domains.

US Patent:

7360035, Apr 15, 2008

Filed:

Sep 1, 2004

Appl. No.:

10/931705

Inventors:

Steven K. Jenkins - Raleigh NC, US
Laura A. Weaver - Chapel Hill NC, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 13/00

US Classification:

711150, 711151

Abstract:

Efficient transfer of data to and from random access memory is described. Multiple request sources and a memory system comprise memory modules having memory banks, each bank containing rows of data. The retrieval comprises transferring all data pursuant to a given request by one source before any data is transferred pursuant to a subsequent request from said second source. This retrieval is achieved using a memory arbiter that implements an algorithm for atomic read/write. Each bank is assigned a FIFO buffer by the arbiter to store access requests. The access requests are arbitrated, and an encoded value of a winner of arbitration is loaded into the relevant FIFO buffer(s) before choosing the next winner. When an encoded value reaches the head of the buffer, all associated data is accessed in the given bank before accessing data for another request source.

US Patent:

7660951, Feb 9, 2010

Filed:

Feb 26, 2008

Appl. No.:

12/037309

Inventors:

Steven K. Jenkins - Raleigh NC, US
Laura A. Weaver - Chapel Hill NC, US

Assignee:

Inernational Business Machines Corporation - Armonk NY

International Classification:

G06F 13/00

US Classification:

711150, 711 5, 711130, 711151, 365200, 345558

Abstract:

Efficient transfer of data to and from random access memory is described. Multiple request sources and a memory system comprise memory modules having memory banks, each bank containing rows of data. The retrieval comprises transferring all data pursuant to a given request by one source before any data is transferred pursuant to a subsequent request from said second source. This retrieval is achieved using a memory arbiter that implements an algorithm for atomic read/write. Each bank is assigned a FIFO buffer by the arbiter to store access requests. The access requests are arbitrated, and an encoded value of a winner of arbitration is loaded into the relevant FIFO buffer(s) before choosing the next winner. When an encoded value reaches the head of the buffer, all associated data is accessed in the given bank before accessing data for another request source.

US Patent:

61920355, Feb 20, 2001

Filed:

Jul 24, 1997

Appl. No.:

8/900204

Inventors:

Andrew Keith Boggs - Raleigh NC
Quy N. Hoang - Raleigh NC
Joe Jacobs - Chapel Hill NC
John Mark Mullen - Wake Forest NC
Challis Purrington - Raleigh NC
Laura A. Weaver - Durham NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04L 1242

US Classification:

370252

Abstract:

An intelligent multistation access unit is provided having a transmission speed detection circuit for determining the data transmission speed of an attached device attempting to gain access to a node of a multiple transmission rate digital data communications network. The intelligent multistation access unit is comprised of a speed detect circuit, which indicates the data transmission speed of the attached device, a switching circuit which directs the attached device to the speed detect circuit until switched to allow the attached device access to the network node, and a processor that controls the switching circuit and which permits the attached device access to the node depending on the data transmission speed indication.

US Patent:

55306969, Jun 25, 1996

Filed:

Jun 22, 1994

Appl. No.:

8/263704

Inventors:

Andrew K. Boggs - Raleigh NC
Quy N. Hoang - Raleigh NC
Joe Jacobs - Chapel Hill NC
John M. Mullen - Wake Forest NC
Challis Purrington - Raleigh NC
Laura A. Weaver - Durham NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04L 1242

US Classification:

370 17

Abstract:

An intelligent multistation access unit is provided having a transmission speed detection circuit for determining the data transmission speed of an attached device attempting to gain access to a node of a multiple transmission rate digital data communications network. The intelligent multistation access unit is comprised of a speed detect circuit, which indicates the data transmission speed of the attached device, a switching circuit which directs the attached device to the speed detect circuit until switched to allow the attached device access to the network node, and a processor that controls the switching circuit and which permits the attached device access to the node depending on the data transmission speed indication.

US Patent:

57038724, Dec 30, 1997

Filed:

Feb 8, 1996

Appl. No.:

8/598293

Inventors:

Andrew Keith Boggs - Raleigh NC
Quy N. Hoang - Raleigh NC
Joe Jacobs - Chapel Hill NC
John Mark Mullen - Wake Forest NC
Challis Purrington - Raleigh NC
Laura A. Weaver - Durham NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04L 1242

US Classification:

370252

Abstract:

An intelligent multistation access unit is provided having a transmission speed detection circuit for determining the data transmission speed of an attached device attempting to gain access to a node of a multiple transmission rate digital data communications network. The intelligent multistation access unit is comprised of a speed detect circuit, which indicates the data transmission speed of the attached device, a switching circuit which directs the attached device to the speed detect circuit until switched to allow the attached device access to the network node, and a processor that controls the switching circuit and which permits the attached device access to the node depending on the data transmission speed indication.

US Patent:

20170171263, Jun 15, 2017

Filed:

Dec 14, 2015

Appl. No.:

14/968143

Inventors:

- New Tech Park, SG
Joseph Francis Herman - Raleigh NC, US
William James Sommerville - Raleigh NC, US
Laura Ann Weaver - Chapel Hill NC, US

International Classification:

H04L 29/06

Abstract:

A computing device determines a collaboration event in which users are participating. For instance, the users' computing devices may be located within a same location, the users' communication devices may be currently engaging in a common communication session, or calendar entries of the users' calendars may indicate that they are currently participating in a common session. The computing device determines data related to the collaboration event, and may filter this data to yield the data most related to the collaboration event. The computing device provides the data related to the collaboration event to at least one of the users participating in the collaboration event.

US Patent:

20170078207, Mar 16, 2017

Filed:

Sep 10, 2015

Appl. No.:

14/850176

Inventors:

- Singapore, SG
Gary D. Cudak - Wake Forest NC, US
Joseph F. Herman - Raleigh NC, US
Laura A. Weaver - Chapel Hill NC, US
William J. Sommerville - Raleigh NC, US

International Classification:

H04L 12/851

Abstract:

A first method includes a plurality of nodes communicating with a network switch, each node transmitting a packet with a packet header that includes a value of a node-level attribute selected from a node utilization level, a node role, and a dependency involving the node, and the network switch receiving the packet and prioritizing transmission of the packet based on the value of the node-level attribute identified in the packet header. In a related second method, each node reports the value of the node-level attribute to a management entity, the management entity determines a priority for each node based on the value of the node-level attribute received from each node, and the management entity provides the priority for each node to the network switch, such that the network switch prioritizes, for each packet, transmission of the packet based on the priority for the node involved in communication of the packet.