LandOfFree - US Patents - Listing for Cryptography

Cryptography – Electric signal modification – Having production of printed copy

Visually interactive encoding and decoding of dataforms

Cryptography – Cryptanalysis

Voice and data encryption device

Cryptography – Key management – Having particular key generator

Voice and data encryption method using a cryptographic key...

Cryptography – Communication system using cryptography – Frequency shift or inversion

Voice band splitting scrambler

Cryptography – Communication system using cryptography – Speech scrambler detail

Voice decoder and method for detecting channel errors using...

Cryptography – Communication system using cryptography – Wireless communication

Voice scrambler using frequency-inversion and band-splitting tec

Cryptography – Key management – Having particular key generator

WACS-type mobile communication with a unified frame format

Cryptography – Video cryptography – Copy protection or prevention

Watermark embedding and detection

Cryptography – Video cryptography

Watermark generating circuit and related method thereof

Cryptography – Communication system using cryptography

Watermarking and transferring material

Cryptography – Cryptanalysis

Watermarking method and apparatus for compressed digital video

Cryptography – Video cryptography – Copy protection or prevention

Watermarking of digital object

Cryptography – By modifying optical image

Watermarking process resilient to collusion attacks

Cryptography – Communication system using cryptography – Wireless communication

Wave packet communication subsystem for determining the sync pul

Cryptography – Key management – Having particular key generator

Web-based administration of IP tunneling on internet firewalls

Cryptography – Key management – Key distribution

Weighted secret sharing and reconstructing method

Cryptography – Key management – Having particular key generator

Wideband on-demand video distribution system and method

Cryptography – Selectively movable element having code characters – Rotatable

Windowed rotatable cover which reveals one indicia on one surfac

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Wired microcircuit card and a method for transactions between a