1
David Griffin, Jonathan Campbell, Michael Reilly, Richard Rosenbaum: Arrangement with cooperating management server node and network service node. Digital Equipment Corporation, Fish & Richardson, April 2, 1991: US05005122 (733 worldwide citation)

A network including a plurality of nodes which communicate over a communications link includes client nodes which are used by users and server nodes. At least one of the server nodes is a management server node, and other server nodes may comprise backup server nodes or software distribution server ...


2
Rex A Flynn, Peter G Anick: System for reconstructing prior versions of indexes using records indicating changes between successive versions of the indexes. Digital Equipment Corporation, Kenyon & Kenyon, September 13, 1994: US05347653 (724 worldwide citation)

A method and apparatus for providing an historical perspective into a database of information objects through an efficient method and apparatus for versioning information objects stored in a database as well as an index representative of the information objects is disclosed. The latest versions of e ...


3
Christian D Saether, Peter Stoppani Jr: System of device independent file directories using a tag between the directories and file descriptors that migrate with the files. Digital Equipment Corporation, Flehr Hohbach Test Albritton & Herbert, July 26, 1994: US05333315 (641 worldwide citation)

A computer file system, having a multiplicity of distinct disk storage devices, includes a multiplicity of file directories, stored on various disks. Each file directory is used to translate file names into corresponding tag values. For each disk there is a file descriptor table with a file descript ...


4
Robert M Wyman: Filters in license management system. Digital Equipment Corporation, Arnold White & Durkee, November 9, 1993: US05260999 (627 worldwide citation)

A distributed computer system employs a license management system to account for software product usage. A management policy having a variety of alternative styles and contexts is provided. Each licensed product upon start-up makes a call to a license server to check on whether usage is permitted, a ...


5
Robert M Wyman: Management interface for license management system. Digital Equipment Corporation, Arnold White & Durkee, April 20, 1993: US05204897 (615 worldwide citation)

A distributed computer system employs a license management system to account for software product usage. A management policy having a variety of alternative styles and contexts is provided. Each licensed product upon start-up makes a call to a license server to check on whether usage is permitted, a ...


6
Paul David Saxon: Method and apparatus for performing retroactive backups in a computer system. Digital Equipment Corporation, Ronald C Hudgens, May 26, 1998: US05758359 (614 worldwide citation)

A mechanism for performing retroactive backups in a computer system is presented. The retroactive backup mechanism employs a backup policy dictating that certain backups are to be performed at set times and for set backup levels, but subject to user-defined selection criteria so that the backups are ...


7
Richard P Pitkin, John P Morency: Broker for computer network server selection. Digital Equipment Corporation, Kenyon & Kenyon, August 23, 1994: US05341477 (600 worldwide citation)

In a computer network, a broker mechanism allocates a plurality of servers, each having an available resource capacity, to a plurality of clients for delivering one of several services to the clients. The broker operates by monitoring a subset of all available servers capable of delivering the reque ...


8
Peter Stoppani Jr: System for allocating storage spaces based upon required and optional service attributes having assigned piorities. Digital Equipment Corporation, Flehr Hohbach Test Albritton & Herbert, February 15, 1994: US05287500 (580 worldwide citation)

A computer file system, for use with a computer system having a multiplicity of distinct data storage devices, includes a management program that defines a set of service attributes which characterize operational characteristics of data storage devices. A service class table stores data denoting whi ...


9
Clark E Lubbers, Susan G Elkington, Ronald H McLean: Enhanced raid write hole protection and recovery. Digital Equipment Corporation, Cathy L Peterson, Ronald C Hudgens, June 30, 1998: US05774643 (576 worldwide citation)

Disclosed is a method and apparatus for reconstructing data in a computer system employing a modified RAID 5 data protection scheme. The computer system includes a write back cache composed of non-volatile memory for storing (1) writes outstanding to a device and associated data read, and (2) storin ...


10
Donald F Hooper, Matthew S Goldman, Peter C Bixby, Suban Krishnamoorthy: Segmented video on demand system. Digital Equipment Corporation, Arthur W Fisher, Barry N Young, May 9, 1995: US05414455 (510 worldwide citation)

In a system for distributing videos, a plurality of videos are stored on a mass storage device. Each video includes a plurality of frames of digitized video data for play-back on a viewing device. The system includes a memory buffer for storing a segment of a selected one of the videos. The segment ...



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