Cryptography – Electric signal modification – Having production of printed copy
Patent
1993-10-12
1995-07-25
Gregory, Bernarr E.
Cryptography
Electric signal modification
Having production of printed copy
380 3, 380 23, 380 59, 283 72, 283 73, 283 74, 283901, H04L 900, G09C 500, B42D 1500, B42D 1510
Patent
active
054369746
ABSTRACT:
The invention disclosed here is a method of encoding serial numbers indicating "confidentiality" or "proprietary information" on printed documents. A group of marks in the form of small-sized dots or equivalent markings are repetitively printed across the face of the document. The placement and location of the markings defines a readable binary serial number. Intermixing the markings with the printed matter on the document makes it difficult or impossible to remove the serial number created by the markings, and they will remain on the document after repeated photocopies of it are made.
REFERENCES:
patent: 792312 (1905-06-01), Bush
patent: 1070342 (1913-08-01), Hoffman
patent: 2129364 (1938-09-01), Simons et al.
patent: 3279826 (1966-10-01), Rudershausen et al.
patent: 3675948 (1972-07-01), Wicker
patent: 3862501 (1975-01-01), Jemseby
patent: 4234214 (1980-11-01), Lee
patent: 4303307 (1981-12-01), Tureck
patent: 4351547 (1982-09-01), Brooks
patent: 4582346 (1986-04-01), Caprio
patent: 4678322 (1987-07-01), Finkel
patent: 4681348 (1987-07-01), Mowry, Jr.
patent: 4739377 (1988-04-01), Allen
patent: 4837737 (1989-06-01), Watanabe
patent: 4896029 (1990-01-01), Chandler
patent: 4998010 (1991-03-01), Chandler
patent: 5062666 (1991-11-01), Mowry et al.
patent: 5149140 (1992-09-01), Mowrey
patent: 5153418 (1992-10-01), Batterman et al.
patent: 5178418 (1993-01-01), Merry et al.
patent: 5189292 (1993-02-01), Batterman et al.
Bank Statement, Mar. 14, 1994.
Computer Products Literature Library Order Form, Jan. 15, 1994.
Gregory Bernarr E.
Innovator Corporation
Kaser Bruce A.
LandOfFree
Method of encoding confidentiality markings does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of encoding confidentiality markings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of encoding confidentiality markings will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-746191