Debug routine accessing system

Details Debug routine accessing system Debug routine accessing system

1989-04-27

1990-06-26

Buczinski, Stephen C.

Cryptography

Cryptanalysis

380 2, 380 18, 380 21, 380 22, 380 23, 34082531, 34082534, 355204, 371 161, 371 19, 364186, 364481, 364523, 36455101, H04L 900

Patent

active

049378643

ABSTRACT:
Debug routine accessing system using special keys in the form of floppy disks for unlocking debug routines embedded in the operating software of a reproduction machine, each debug routine having a key number, with the floppy disks having various key numbers for different ones of the debug routines so that on insertion of a selected disk in the machine floppy disk port, the key number is read from the disk and compared with the key numbers of the various debug routines until a match is found enabling the debug routine represented by the key number to be accessed.

REFERENCES:
patent: 3890601 (1975-06-01), Pietrolewicz
patent: 4035072 (1977-07-01), Deetz et al.
patent: 4104726 (1978-08-01), Fisk et al.
patent: 4107779 (1978-08-01), Fisk et al.
patent: 4158886 (1979-06-01), Gray, Jr. et al.
patent: 4206995 (1980-06-01), Legg
patent: 4458315 (1984-07-01), Uchenick
patent: 4535456 (1985-08-01), Bauer et al.
patent: 4542452 (1985-09-01), Fukai et al.
patent: 4558176 (1985-12-01), Arnold et al.
patent: 4580232 (1986-04-01), Dugan et al.
patent: 4592053 (1986-05-01), Matsuura
patent: 4599489 (1986-07-01), Cargile
patent: 4633405 (1986-12-01), Ito et al.
patent: 4685053 (1987-08-01), Hattori et al.
patent: 4796181 (1989-01-01), Wiedemer
patent: 4870644 (1989-09-01), Sherry et al.

Affiliated with

Also associated with

Rating

Debug routine accessing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Debug routine accessing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Debug routine accessing system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1131381