Abstract: A system and method to encrypt and decrypt data into highly secure forms, which uses common error correction hardware or algorithms to encipher data, with little or no impact on system cost or performance. The data encryption/decryption system allows a nearly limitless number of encryption keys to be used without compromising security, rather than encryption methods such as Data Encryption Standard (DES), which rely upon the difficulty in the factorization of keys based upon large prime numbers.
Abstract: A system for high-speed data transmission using a television signal to communicate encoded data. A multi-level encoding method is employed whereby raw data values are converted into one of a plurality of voltage levels. The encoding method allows for improved data transfer rates, conservation of bandwidth, and self-synchronization for decoding. Mock timing data signals are generated to comply with television signal standards, such as NTSC, SECAM, PAL and HDTV.
Abstract: A system for encoding data by converting an input value into one of a plurality of voltage levels. The multi-level encoding system allows for increased data transfer rates and conservation of bandwidth, and provides self-synchronization for decoding.
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