Resources Contact Us Home
Electronic device providing automatic permutations of a Vigenere Square

Image Number 8 for United States Patent #4675477.

This invention relates to cryptographic teletypewriter systems and more picularly to an electronic device for use in such systems which automatically provides permutations of a Vigenere Square.

  Recently Added Patents
Input system including position-detecting device
Organic light emitting device connection methods
Semiconductor device with hetero-junction bodies
Schottky diode and method of manufacture
Authentication method
Methods and compositions to treat and detect misfolded-SOD1 mediated diseases
Methods and systems for enabling community-tested security features for legacy applications
  Randomly Featured Patents
Biopsy collection system
Bandwidth efficient system and method for ranging nodes in a wireless communication network
Information signal processing device, information signal processing method, image signal processing device and image display device using it, coefficient type data creating device used therein
Compressible fluid recoil system
Synchronization system for a semi-digital signal
Camera body tie down and quick release device
Methods of sampling a surface having a micro-texture
Process for preparing ondansetron
Apparatus and systems for electrically isolating a receiver from an antenna