Recording medium, recorder, reproducer, cryptocommunication...

Details Recording medium, recorder, reproducer, cryptocommunication... Recording medium, recorder, reproducer, cryptocommunication...

2006-10-24

2006-10-24

Dixon, Thomas A. (Department: 3639)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

Reexamination Certificate

active

07127430

ABSTRACT:
The operating and other procedures of a disk or recording medium application system of the type for which a network is used are simplified. Disks or recording media have auxiliary data recording areas, where different IDs for individual disk, and/or cipher keys and/or decoding keys for ciphers are recorded in advance in a factory. By using the IDs to release the soft ciphers, and using the cipher keys when sending the ciphers, and using the decoding keys when receiving the ciphers, user authorization procedures are simplified.

REFERENCES:
patent: 4278837 (1981-07-01), Best
patent: 4465901 (1984-08-01), Best
patent: 4677604 (1987-06-01), Selby, III et al.
patent: 4757534 (1988-07-01), Matyas et al.
patent: 4866769 (1989-09-01), Karp
patent: 5214627 (1993-05-01), Nakashima et al.
patent: 5418713 (1995-05-01), Allen
patent: 5513169 (1996-04-01), Fite et al.
patent: 5563946 (1996-10-01), Cooper et al.
patent: 5629980 (1997-05-01), Stefik et al.
patent: 5647049 (1997-07-01), Odaka et al.
patent: 5745568 (1998-04-01), O'Connor et al.
patent: 5761301 (1998-06-01), Oshimal et al.
patent: 5807640 (1998-09-01), Ueno et al.
patent: 5844593 (1998-12-01), Proffit et al.
patent: 5881038 (1999-03-01), Oshima et al.
patent: 5959944 (1999-09-01), Dockes et al.
patent: 6052465 (2000-04-01), Gotoh et al.
patent: 0 302 710 (1988-08-01), None
patent: 0 302 710 (1989-02-01), None
patent: 0 549 488 (1993-06-01), None
patent: 0 549 488 (1993-06-01), None
patent: 0 565 281 (1993-10-01), None
patent: 0 565 281 A 2 (1993-10-01), None
patent: 0 741382 (1996-08-01), None
patent: 0 741 382 (1996-11-01), None
patent: 03250878 (1990-02-01), None
patent: 04103253 (1990-08-01), None
patent: 4-178967 (1992-06-01), None
patent: 04 178987 (1992-08-01), None
patent: 07-021697 (1995-01-01), None
patent: 07-085574 (1995-03-01), None
Eickmann, I; Utility gives Clarity (PC disc identification); Oct. 1989; Mikrocomputer Zeitschrift No. 10 p. 140-4; dialog copy 1 page.

Affiliated with

Also associated with

Rating

Recording medium, recorder, reproducer, cryptocommunication... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recording medium, recorder, reproducer, cryptocommunication..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording medium, recorder, reproducer, cryptocommunication... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3644532