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Class 380/245 - Nonstandard scan pattern


Subclass of Class 380 - Cryptography
Definition: Subject matter wherein the normal ordering of the scan components
No. of patents: 11
Last issue date: 12/11/2007


NumberTitleIssue Date
7308099Device and method for producing an encoded audio and/or video data stream
An apparatus for generating an encrypted data stream representing an audio and/or video signal comprises an encoder for encoding an input signal to generate a data stream with a predefined data stream syntax as output signal. The apparatus further comprises an encry...
12/11/2007
7266200Method and apparatus for encryption of data
A method and apparatus for encryption of data are provided, in which the data is made up of a series of data items (600). The data items (600) maybe bytes of data or blocks of data. The method includes providing a plurality of encryption algorithms (
09/04/2007
RE38739Facsimile apparatus
A facsimile apparatus is provided with changeover means that makes it possible to pass signals through or to bypass a coder, which encrypts transmission information, and a decoder, which decodes encrypted information that has been received. Whether or not a facsimil...
05/31/2005
6414757Document security system and method
A system and method for secured image creation. A bitmap image is processed to separate color or greyscale planes, or is used as a greyscale, single plane image. The plane(s) are each converted into microtype character layers with each layer arranged at a...
07/02/2002
6269164Method of and system for encrypting messages
A technique for encrypting and decrypting a data message is described herein and includes a stream cipher, a block cipher and a key generation embodiment which use a process of Summary Reduction. This overall technique uses a secret key to generate cipher...
07/31/2001
6226384Method and device for providing controlled access video signals without providing a signal in the clear
A display device for receiving encrypted or scramble video data and for decrypting or descrambling the video data such that a signal is not provided "in the clear". The video data is stored in a memory array in an encrypted form and read out from the memo...
05/01/2001
6222926Method and device for providing controlled access video signals without providing a signal in the clear
A LCD display device for receiving encrypted video data and for decrypting the video data such that a signal is not provided "in the clear" before receipt by the display device. The video data is encrypted within a row of video and decrypted at the displa...
04/24/2001
4916739Adhesive photocopyable transparency for use in a secure facsimile transmission system
An adhesive photocopyable transparency for use in a secure facsimile transmission system wherein one of two partial documents each containing portions of an original document which are complementary and mutually exclusive is photocopied onto the transpare...
04/10/1990
4821321Automatic secure transmission and reception of pictorial information
A real time coding system for the transmission and reception of pictorial o-dimensional information at television (TV) rates. In one coding system, the input signal and a coding signal are modulo added in an operational amplifier and are transmitted there...
04/11/1989
4177486Facsimile device
1. In a facsimile system, a distributor including an array of n electrical contacts, a source of potential therefor and a normally rotating brush for applying potential from said source to said contacts in sequence, a plurality of cryptographic rotors in ...
12/04/1979
4173025Electrical signal scrambling apparatus
2. In an apparatus of the nature described, the combination of means for storing a portion of an electrical signal, means for picking up elements of said portion, a plurality of switching means controlling the conduction of said elements each switching me...
10/30/1979
 
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