1
Whiting Douglas L, Dilatush Tom: System for backing up files from disk volumes on multiple nodes of a computer network. Stac Electronics, May 21, 1997: EP0774715-A1 (699 worldwide citation)

A system for backing up files from disk volumes on multiple nodes of a computer network to a common random-access backup storage means. As part of the backup process, duplicate files (or portions of files) may be identified across nodes, so that only a single copy of the contents of the duplicate fi ...


2
Matze John E G, Whiting Douglas L: System for backing up computer disk volumes. Stac, April 9, 1997: EP0767431-A1 (21 worldwide citation)

A system for backing up data from a computer disk volume at very high speed by saving a logical image copy of the volume to a backup medium such as magnetic tape. This logical image copy can later be restored in its entirety to a disk volume with a different physical geometry and flaw map in a disas ...


3
Mayers Clay, Whiting Douglas L: Data compression apparatus and method using matching string searching and huffman encoding.. Stac Electronics, February 16, 1994: EP0582907-A2 (14 worldwide citation)

An apparatus and method for converting an input data character stream into a variable length encoded data stream in a data compression system. A sliding window data compression algorithm is combined with Huffman encoding on the strings and raw bytes. The Huffman table, in a compressed form, is prepe ...


4
Whiting Douglas L, George Glen A, Ivey Glen E: Data compressing device and its method. Stac, July 18, 2000: JP2000-201081 (2 worldwide citation)

PROBLEM TO BE SOLVED: To obtain a device for achieving a high compression rate at a high speed by storing the processed segments of an input data stream in a history array having plural entries, and making a first-in first-out data buffer full or empty while the history array is searched. SOLUTION: ...


5
Whiting Douglas L, George Glen A, Ivey Glen E: Data compression device and method. Stac, April 25, 1995: JP1995-111460

PURPOSE: To perform the data compression of a high speed and high compressibility by converting an input data character stream to a variable length encoded data stream. CONSTITUTION: A circuit 228 provided with an input data stream 4 is controlled by a compression controller and a sequence unit 230. ...


6
Whiting Douglas L, Dilatush Tom: System for backing up file of network system. Stac Electron, February 20, 1998: JP1998-049416

PROBLEM TO BE SOLVED: To enable a user to access a file directly from a backup by backing up a file to a backup storage means from disk volumes on nodes of a network. SOLUTION: A node to be backed up is a work station 102, a desk-top personal computer 103, a laptop computer 104, or a server 105 on t ...


7
Matze John E G, Whiting Douglas L: System for backing up disk volume of computer. Stac Electron, February 24, 1998: JP1998-055298

PROBLEM TO BE SOLVED: To prevent a user from being forced to compromise in the flexibility or performance of a restoration processing by executing re-mapping at some physical standard required for detecting and evading a physical defect on a restoration storage means. SOLUTION: The entry of respecti ...