Dynamic magnetic information storage or retrieval – General recording or reproducing – Recording-or erasing-prevention
Patent
1997-06-27
1999-09-07
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Recording-or erasing-prevention
G11B 1904
Patent
active
059496010
ABSTRACT:
A method of inhibiting inadvertent and unauthorized writing and reading of information to and from a storage medium comprises the steps of (a) writing a first code in a predetermined location on the storage medium, the first code being indicative of a first protection mode of the storage medium; (b) receiving a command to change the protection mode of the storage medium from the first protection mode to a second protection mode; and, in response to the command, (c) writing in the predetermined location on the storage medium, in place of the first code, a second code indicative of the second protection mode. A protection mode can inhibit writing to the storage medium, both writing and reading to and from the medium, or neither. Changing of protection modes can also be password protected.
REFERENCES:
patent: 3828327 (1974-08-01), Berglund et al.
patent: 3890601 (1975-06-01), Pietrolewicz
patent: 4434471 (1984-02-01), Hildinger
patent: 4458315 (1984-07-01), Uchenick
patent: 4460930 (1984-07-01), Takahashi
patent: 4462076 (1984-07-01), Smith
patent: 4577289 (1986-03-01), Comerford et al.
patent: 4593353 (1986-06-01), Pickholtz
patent: 4606016 (1986-08-01), Verboom et al.
patent: 4644493 (1987-02-01), Chandra et al.
patent: 4680731 (1987-07-01), Izumi et al.
patent: 4734796 (1988-03-01), Grynberg et al.
patent: 4740890 (1988-04-01), William
patent: 4748561 (1988-05-01), Brown
patent: 4757533 (1988-07-01), Allen et al.
patent: 4785361 (1988-11-01), Brotby
patent: 4799635 (1989-01-01), Nakagawa
patent: 4815032 (1989-03-01), Fujii
patent: 4823210 (1989-04-01), Bond
patent: 4849836 (1989-07-01), Kachikian
patent: 4858036 (1989-08-01), Ginkel
patent: 4860128 (1989-08-01), Nakagawa
patent: 4864542 (1989-09-01), Oshima et al.
patent: 4865321 (1989-09-01), Nakagawa et al.
patent: 4866769 (1989-09-01), Karp
patent: 4903296 (1990-02-01), Chandra et al.
patent: 4942606 (1990-07-01), Kaiser et al.
patent: 4947318 (1990-08-01), Mineo
patent: 4959860 (1990-09-01), Watters et al.
patent: 4975898 (1990-12-01), Yoshida
patent: 4980782 (1990-12-01), Ginkel
patent: 4983816 (1991-01-01), Iijima
patent: 4984193 (1991-01-01), Nakagawa
patent: 4984272 (1991-01-01), McIlroy et al.
patent: 4985615 (1991-01-01), Iijima
patent: 5012514 (1991-04-01), Renton
patent: 5027396 (1991-06-01), Platteter et al.
patent: 5033084 (1991-07-01), Beecher
patent: 5041923 (1991-08-01), Iwata et al.
patent: 5042067 (1991-08-01), Moriyama
patent: 5070479 (1991-12-01), Nakagawa
patent: 5091901 (1992-02-01), Yamamoto et al.
patent: 5115508 (1992-05-01), Hatta
patent: 5119336 (1992-06-01), Itoh
patent: 5131091 (1992-07-01), Mizuta
patent: 5132954 (1992-07-01), Kulakowski et al.
patent: 5134391 (1992-07-01), Okada
patent: 5144660 (1992-09-01), Rose
patent: 5155768 (1992-10-01), Matsuhara
patent: 5161256 (1992-11-01), Iijima
patent: 5182680 (1993-01-01), Yamashita et al.
patent: 5184830 (1993-02-01), Okada et al.
patent: 5185792 (1993-02-01), Shimada
patent: 5231546 (1993-07-01), Shimada
patent: 5265163 (1993-11-01), Golding et al.
patent: 5265230 (1993-11-01), Saldanha et al.
patent: 5267311 (1993-11-01), Bakhoum
patent: 5282247 (1994-01-01), McLean et al.
patent: 5289540 (1994-02-01), Jones
patent: 5311498 (1994-05-01), Horiguchi
patent: 5369532 (1994-11-01), Dodt et al.
patent: 5371792 (1994-12-01), Asai et al.
patent: 5375243 (1994-12-01), Parzych et al.
patent: 5379433 (1995-01-01), Yamagishi
patent: 5388156 (1995-02-01), Blackledge, Jr. et al.
patent: 5418852 (1995-05-01), Itami et al.
patent: 5434562 (1995-07-01), Reardon
patent: 5453968 (1995-09-01), Veldhuis et al.
patent: 5454039 (1995-09-01), Coppersmith et al.
patent: 5475839 (1995-12-01), Watson et al.
patent: 5535188 (1996-07-01), Dang et al.
patent: 5557674 (1996-09-01), Yeow
patent: 5559993 (1996-09-01), Elliott et al.
patent: 5623637 (1997-04-01), Jones et al.
patent: 5644444 (1997-07-01), Braithwaite et al.
patent: 5677952 (1997-10-01), Blakley, III et al.
patent: 5682475 (1997-10-01), Johnson et al.
Dryden "Password Utility Locks Disks" (Fifth Generation Systems, Inc., Baton Rouge, LA), Macintosh News, p. 28, IDG Communications, Inc., Infoworld, Sep. 4, 1989.
"Disklock" (Fifth Generation Systems, Inc., Baton Rouge, LA) (Abvertisement).
"Sentry Software" Computerworld, pp. 55 and 56, Jun. 24, 1985. (Article).
"Advanced Security, Disklock, FileGuard" Advanced Gravis Computer Technology, Bellingham WA (Advertisement) (2 pgs.).
European Patent Office Supplementary Search Report, dated Aug. 8, 1997, 4 pages.
Fastlock File Protection System, RUPP Corporation, 1989, N000540-N000546.
IBM.RTM. Corporation, "Preventing Unauthorized Access to Diskette-Loaded Microcode", IBM .RTM. Technical Disclosure Bulletin, vol. 21(2), Jun. 1978, 836-837.
IBM.RTM. Corporation, "Data Base Security/Authorization Mechanisms", IBM.RTM. Technical Disclosure Bulletin, vol. 28(3), Aug. 1985, 942-947.
Voelcker, J. et al. (Assoc. Eds.), "How disks are `padlocked`", IEEE Spectrum, Jun. 1986, 32-40.
ATA-3 Security Mode Questions, Nov. 16, 1994, 2 pages.
ATA-3 Security Mode Questions, Nov. 23, 1994, 2 pages.
Proposal for adding Security Mode to ATA Specification, Apr. 18, 1994, 8 pages.
ATA Ad Hoc Minutes for Jan. 11-12, 1995, Jan. 16, 1995, 11 pages.
Allen Gregory M.
Braithwaite David G.
Bruderer Clark C.
Thompson David A.
Faher Alan
Iomega Corporation
Psitos Aristotelis M.
LandOfFree
Read/write protect scheme for a disk cartridge and drive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Read/write protect scheme for a disk cartridge and drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Read/write protect scheme for a disk cartridge and drive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1810128