| 6909783 |
Alphabet soup cryptography |
| Jun-21-2005 |
Computer methods, systems, and devices, providing automatic permutations of a programmed modified random symbol square matrix producing one time pad messages are disclosed enabling messages to be encrypted... |
| 6826281 |
Storage-encryption-retrieval device and method with resulting business processes |
| Nov-30-2004 |
An encryption device includes a card with a grid comprising multiple rows and columns defining boxes for receiving individual characters. One of the columns or rows contains a master password or code character... |
| 6621933 |
MPEG2 moving picture encoding/decoding system |
| Sep-16-2003 |
An MPEG2 moving picture and encoding/decoding system to provide digital copy protection of digital moving picture data. The MPEG2 moving picture encoder discrete cosine transforms a video input signal... |
| 6571336 |
Method and apparatus for securing a list of passwords and personal identification numbers |
| May-27-2003 |
A method for securing passwords, personal identification numbers and identifying patterns utilizes a MasterCode camouflaged within a grid which contains all the characters, symbols or pictograms of which... |
| 6253328 |
Method and apparatus for securing passwords and personal identification numbers |
| Jun-26-2001 |
A method for securing passwords and personal identification numbers utilizes a mastercode. At least ten characters are selected for the mastercode. The selected characters are randomly associated to a... |
| 6209097 |
Content protection method and content protection system |
| Mar-27-2001 |
A recording medium in which a purchased image protected by a copyright or the like has been stored and a recording medium in which a user image has been stored is set, the purchased image as encrypted... |
| 6175625 |
Control circuits for electric coding machines |
| Jan-16-2001 |
The machine involves code wheels in cascade or in a maze with random or mixed circuits which operate a printing device to print the cipher conjugate of the letter on an operated key when the keyboard is... |
| 6130946 |
Cryptographs |
| Oct-10-2000 |
The cryptographic system automatically and continuously changes the cipher equivalents representing plaintext characters so as to prevent any periodicity in the relationship. The system has a series of... |
| 6097812 |
Cryptographic system |
| Aug-1-2000 |
The crytographic system automatically and continuously changes the cipher equivalents representing plaintext characters so as to prevent any periodicity in the relationship. The system has a series of... |
| 6085178 |
Apparatus and method for communicating between an intelligent agent and client computer process using disguised messages |
| Jul-4-2000 |
An intelligent agent and its client communicate using a selector known by both parties to generate and interpret messages and thereby effectively disguise confidential information transmitted in the messages... |
| 6055635 |
Method and device for facilitating access to a multitude of alphanumeric sequences |
| Apr-25-2000 |
A method and a device for facilitating authorized and simultaneously restraining unauthorized access to a multitude of alphanumeric sequences, for instance for credit cards, code keys and the like. According... |
| 5629770 |
Document copying deterrent method using line and word shift techniques |
| May-13-1997 |
A method is provided that deters the illicit copying of electronically published documents. It includes publishing a plurality of copies of electronically created material to be distributed to a plurality... |
| 5321755 |
Information-encrypting device and method |
| Jun-14-1994 |
A method of encrypting a sequence of characters such as a code number on an information slide or disc is provided. The method allows the encryption of a plurality of sequences on a single user-markable... |
| 5307414 |
Encryption template |
| Apr-26-1994 |
An encryption template has a grid of permanent openings thereon forming several arrays which are symmetrically located about a rotational axis, and members for selectively marking certain of the openings... |
| 5133554 |
Lotto ticket card holder |
| Jul-28-1992 |
A lotto ticket card holder for viewing numbers thereon and for comparing the viewed numbers with the current winning combination. The holder includes a front sheet and a back sheet that is joined thereto... |
| 5077796 |
Cryptograph |
| Dec-31-1991 |
An apertured device translatably receives a lottery ticket in juxtaposed relationship with the aperture to display a set of numbers appearing upon the lottery ticket. A panel adjacent the aperture accommodates... |
| 5056142 |
Decryption device |
| Oct-8-1991 |
A decryption device, comprising a substrate, a plurality of encrypted information symbols located within a rectangular array of further symbols carried by the substrate, wherein the array is arranged in... |
| 5046096 |
Windowed rotatable cover which reveals one indicia on one surface and a second indicia on a second surface corresponding to the first that encodes and decodes messages |
| Sep-3-1991 |
A simple and inexpensive apparatus for encoding and decoding messages is disclosed. The apparatus comprises a first surface having a first series of indicia and a second surface having a series of letters.... |
| 5042157 |
Fiber optic angular orientation sensor digital serial encoding |
| Aug-27-1991 |
A sensor provides remote angular orientation sensing. A rotational signal transmitted to a rotatable input shaft mounted in an encoder body causes the shaft to rotate. Light signals are transmitted through... |
| 4885779 |
Personal identification encryptor system with error-correcting code and method |
| Dec-5-1989 |
An inexpensive encryption device, system and method includes coded alphanumeric characters preprinted according to different key codes on mail-out forms that can be manipulated by a prospective user to... |
| 4870683 |
Personal identification encryptor system and method |
| Sep-26-1989 |
An inexpensive encryption device, system and method includes coded alphanumeric characters preprinted according to different key codes or mail-out forms that can be manipulated by a prospective user to... |
| 4664418 |
Order handling sheet and method |
| May-12-1987 |
A system for handling orders including a sheet defining a plurality of delineated spaces. Indicia are displayed in the spaces for identifying a plurality of items available for ordering, and a pencil or... |
| 4560164 |
Toy puzzle |
| Dec-24-1985 |
In a tubular toy puzzle, the object is to manipulate indicia on rotatable rings to achieve a desired arrangement of the indicia. Manipulation occurs by rotating a drive mechanism connected with a combination... |
