Patent
Virtual addressing of optical storage media as magnetic tape equivalents
Richard V. Keele,Craig D. Mautner,Tracy J. Thorpe,Sidney R. Thompson,Michael C. Goodsell,Philip J. Erdelsky +5 more
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TLDR
In this article, an optical disk storage system emulates a magnetic tape subsystem by virtual addressing of data recorded on write once optical disk media having a predetermined group of available sectors for rewriting a disk ID, a predetermined plurality of bands of available sector for rewriting virtual tape directory to virtual tape VSNs, and available sectors with data portions for simulating tape marks and interblock gap and for addressing blocks of data within the virtual tapes.Abstract:
An optical disk storage system emulates a magnetic tape subsystem by virtual addressing of data recorded on write once optical disk media having a predetermined group of available sectors for rewriting a disk ID, a predetermined plurality of bands of available sectors for rewriting a virtual tape directory to virtual tape VSNs, and, available sectors for rewriting virtual tape maps and rewriting user records, the tape maps have data portions for simulating tape marks and interblock gap and for addressing blocks of data within the virtual tapes, the virtual tape directory has pointers for pointing to tape maps, and the system rewrites the tape directory, tape maps and user records so as to function as a rewritable magnetic tape.read more
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System and method for achieving reliable WORM storage using WMRM storage
Windsor Wee Sun Hsu,Shauchi Ong +1 more
TL;DR: In this article, the authors propose a method for ensuring that data stored on rewritable storage is immutable, which includes initializing selected user-addressable blocks of storage to a writable state.
Patent
Emulation of dissimilar removable medium storage device types assisted by information embedded in the logical format
TL;DR: In this paper, the authors present systems and methods for allowing a holographic storage device to emulate optical WORM drives and tape drives, and demonstrate that such a storage device can be used for data storage.
Patent
Data storage management system and method
Stephen H. Blendermann,Alan Ray Sutton,Robert Raicer,L. Michael Anderson,Clayton E. Ruff,William G. Kefauver +5 more
TL;DR: In this article, a virtual automated cartridge system (ACS) and data storage device management method is presented, which incorporates a temporary data buffer arrangement between multiple user systems and conventional physical data storage devices.
Patent
Virtual automated cartridge system
Stephen H. Blendermann,Alan Ray Sutton,Robert Raicer,L. Michael Anderson,Clayton E. Ruff,William G. Kefauver +5 more
TL;DR: In this article, the authors present a virtual automated cartridge system (ACS) and data storage device management method which incorporates a temporary data buffer arrangement (32) between multiple user systems (12, 14) and conventional physical data storage devices (24, 26, 28, 30).
Patent
Audiovisual distribution system for playing an audiovisual piece among a plurality of audiovisual devices connected to a central server through a network
Guy Nathan,Tony Mastronardi +1 more
TL;DR: In this article, the order for performing a selected piece is processed as a hard disc sequential access task, and the hard disc is declared as a peripheral corresponding to the network card of the unit, enabling a request to be sent through the network to the server for processing.
References
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Patent
Information retrieval system and method using independent user stations
Justin Korn,Stephen F. Schmelzer +1 more
TL;DR: An information retrieval system (10) including user stations (30) and storage units is described in this paper, where the storage units such as video disks or cassettes are stored oriented vertically in a storage rack (60).
Patent
Crypto microprocessor that executes enciphered programs
TL;DR: In this article, a microprocessor for executing computer programs which are stored in cipher to prevent software piracy is proposed, which can process valuable proprietary programs and data files which are distributed in cipher on videodiscs, semiconductor memory, or other media without risk of software piracy.
Patent
Computer memory system with parallel garbage collection independent from an associated user processor
TL;DR: In this article, the reference count process includes providing for a reference count indicating the number of pointer references to a memory block (120, 121, 126-129, 122, 132, 133) in the virtual address space (Area 1, Area 2, Area 3).
Patent
Pseudo-erasable and rewritable write-once optical disk memory system
TL;DR: In this article, a write-once, read-many optical data storage system is defined, which includes an optical disk to which data is written such that a host data system having access to the optical data disk is enabled to access any one of a predetermined number of logical addresses for storing data at a selected logical address whether or not data had previously been stored at that logical address.
Patent
Optical disk storage format, method and apparatus for emulating a magnetic tape drive
TL;DR: In this article, a high-level directory is constructed providing a list of addresses for the embedded directories, which comprise a fixed maximum number of entries each indicating the length of a corresponding record.
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