Security system method and article for photocopiers and telefax machines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5184849
SERIAL NO

07696736

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method and article for optically encoding copies of a printed document to make the copies unreadable to a casual observer uses a mask having alternating transparent and opaque, white-colored areas placed over the document prior to making a first photocopy of the document, referred to as a first coded half. The opaque regions of the mask, which preferably are spatially periodic, obscure portions of printed letters to make the first coded half unreadable. The mask is then shifted in location relative to the document so as to position transparent regions of the mask over formerly obscured areas, and vice versa. A second photocopy, or second coded half is then made. The first and second coded halves are then physically transmitted or telefaxed to a recipient, who must superimpose the first and second coded halves to render the document readable.

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First Claim

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Patent Owner(s)

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International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Taylor, Geoffrey L 211 Oak Street, Winnipeg, Manitoba, CA 24 681

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MOORE BUSINESS FORMS, INC. (1)
* 4582346 Document security system 34 1984
 
SCHMEISER, MORELLE & WATTS (1)
* 5018767 Counterfeit protected document 96 1989
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (4)
* 5350199 Security facsimile paper 15 1993
* 5435601 Reusable telecopier cover letter 5 1994
* 2006/0032,924 Tape indicia on clear film media 1 2005
* 2009/0046,856 METHODS AND APPARATUS FOR ENCRYPTING, OBFUSCATING AND RECONSTRUCTING DATASETS OR OBJECTS 27 2006
 
FUJI XEROX CO., LTD. (2)
* 9098946 Image processing apparatus and method, specifying mark estimating apparatus and method, and non-transitory computer readable medium 0 2012
* 2013/0176,605 IMAGE PROCESSING APPARATUS AND METHOD, SPECIFYING MARK ESTIMATING APPARATUS AND METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM 0 2012
 
NEC CORPORATION (1)
* 5991426 Field-based watermark insertion and detection 164 1998
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (4)
* 6650428 Automated duplex image generation for a duplexing image forming device 5 1999
* 2004/0047,467 Document encoding by pixel block transformation and document decoding by overlaying 0 2002
* 7456983 System and method for preventing comprehension of a printed document 4 2003
* 2005/0002,053 System and method for preventing comprehension of a printed document 8 2003
 
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. (1)
* 5466012 Facsimile security system 27 1994
 
XEROX CORPORATION (1)
* 6728376 System for encrypting documents with stencils 7 1999
 
THE 41ST PARAMETER, INC. (9)
8612854 Methods and apparatus for securely displaying digital images 8 2006
* 2007/0183,000 METHODS AND APPARATUS FOR SECURELY DISPLAYING DIGITAL IMAGES 45 2006
8938671 Methods and apparatus for securely displaying digital images 6 2007
* 2008/0002,911 Methods and Apparatus for Securely Displaying Digital Images 58 2007
9633201 Methods and systems for fraud containment 0 2013
9521551 Methods and systems for persistent cross-application mobile device identification 1 2013
9703983 Methods and apparatus for securely displaying digital images 0 2014
9754311 Systems and methods for detection of session tampering and fraud prevention 0 2015
9754256 Variable risk engine 0 2016
 
YEDA RESEARCH AND DEVELOPMENT CO. LTD. (1)
* 5488664 Method and apparatus for protecting visual information with printed cryptographic watermarks 156 1994
 
PRIVATIZER SYSTEMS, INCORPORATED (9)
* 6076336 Apparatus and method for advancing a confidential sheet into a pocket defined by a number of enclosure sheets 3 1997
* 5996317 Method for providing confidentiality to a facsimile transmission having a non-printed back enclosure sheet 0 1997
* 5979148 Apparatus and method for sealing an envelope in a document security apparatus having a sealing roller with a sealing ridge attached thereto 0 1997
* 5956930 Apparatus and method of forming an envelope in a document security apparatus 2 1997
* 5946889 Apparatus and method for enclosing a confidential sheet between a first enclosure sheet and a second enclosure sheet within a document security apparatus 2 1997
* 5941048 Apparatus and method of sealing an envelope in a document security apparatus 2 1997
* 5937619 Apparatus and method for sealing an envelope having a first lateral side and a second lateral side in a document security apparatus 0 1997
* 5934045 Method for providing confidentiality to a facsimile transmission having information associated with a first page of the transmission printed on a first enclosure sheet 3 1997
* 5887411 Apparatus and method for positioning a number of non-transparent enclosure sheets in a document security apparatus 0 1997
* Cited By Examiner