公开(公告)号：AT360907T

公开(公告)日：2007-05-15

申请号：AT05106698

申请日：2003-02-14

Applicant: IBM

Inventor： HARLEY IAN ,  HURSLEY PARK

IPC: H02G1/06 ,  H02G1/08 ,  H02G15/02

Abstract: Disclosed is a device for pulling a plurality of cables. The device comprises a base and means for attaching each of a plurality of cables to the base. The attachment means comprises a first central attachment device and an even number of further attachment devices symmetrically surrounding the central device, wherein each attachment device is freely rotatable about an axis normal to the base.

公开(公告)号：AT313883T

公开(公告)日：2006-01-15

申请号：AT99929590

申请日：1999-07-06

Applicant: IBM

Inventor： MCKAY DANNY ,  HURSLEY PARK ,  BAKER MURRAY ,  SINHA RUPAM ,  JEAN NELSON ,  WONG DANIEL

IPC: H04L47/765 ,  H04W80/02 ,  H04L12/28 ,  H04L12/56 ,  H04L1/16

Abstract: A method is provided for communication between a plurality of stations in a communication network using media access protocol, in which medium access is granted to stations obtaining a successful reservation of the medium and in which data transmission verification is performed by the protocol within the reservation. In the method a station sends a request message on the communication medium for a reservation of the medium to a recipient station in the network. The recipient station sends a reservation confirmation message back to the sending station which receives it and responds to the reservation confirmation message by sending an ordered sequence of data frames to the recipient station. After sending the ordered sequence of data frames the sending station sends an end of transmission message to the recipient station, which replies by sending back an end of transmission confirmation identifying the number of frames received in their original sequence. If the number is not correct remedial action can be taken by the sending station to resend missing data. Address conflict resolution is also provided by another aspect of the invention. The invention has embodiments which handle unicast and groupcasting transmissions.

公开(公告)号：AT305634T

公开(公告)日：2005-10-15

申请号：AT01000120

申请日：2001-04-20

Applicant: IBM

Inventor： CANNON DAVID M ,  HURSLEY PARK ,  DAWSON COLIN S ,  HAYE MARK A

IPC: G06F17/30 ,  G06F3/06 ,  G06F12/00

Abstract: A system and method are provided for transferring related data objects in a distributed data storage environment. The approach allows for data objects belonging to a common group to be transferred while preserving the grouping of the data objects. The data objects can be transferred in an order in which the data objects are stored, rather than in an order of grouping. The data objects are accompanied with attribute information including a unique group identifier when transferred from a source site to a target site. At the target site, the attribute information for each data object is received and analysed. An import groups table listing the groups of data objects is used to associate each data object with its group as it is received. Data objects of groups for which any members have not been received are also listed in an unresolved objects table. When a group is complete, all data objects of the group are removed from the unresolved objects table. At the end of a data transfer session, all data objects still listed in the unresolved objects table are deleted.