Patents by Inventor George Bilchev

George Bilchev has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7076060
    Abstract: A cipher for enciphering and deciphering a signal includes a plurality of sequentially coupled cipher units, each cipher unit being operable to carry out a reversible operation on the signal. The couplings between cipher units can be randomly configured using a cipher code. The cipher code can be secretly shared between the encipher and decipher. A signal which is enciphered using this technique is thus deciphered using a randomly selected cipher circuit as described by the cipher code.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: July 11, 2006
    Assignee: British Telecommunications public limited company
    Inventor: George Bilchev