LandOfFree - US Patents - Listing for Cryptography

Cryptography – Video cryptography – Copy protection or prevention

Video-signal output apparatus, video-signal input apparatus,...

Cryptography – Video cryptography – Video electric signal modification

Video/audio scrambling with single conversion tuners

Cryptography – Cryptanalysis

Videotape anti-copying encryption scheme

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Virtual authentication network for secure processors

Cryptography – Key management – Key distribution

Virtual disk management methods

Cryptography – Particular algorithmic function encoding

Virtual encryption scheme combining different encryption...

Cryptography – Particular algorithmic function encoding

Virtual matrix encryption (VME) and virtual key...

Cryptography – By modifying optical image

Virtual shop computer network system which displays member shops

Cryptography – Video cryptography – Video electric signal modification

Virtual smart card device, method and system

Cryptography – Video cryptography – Video electric signal modification

Virtual smart card device, method and system

Cryptography – Cryptanalysis

Virtualized installation of material

Cryptography – Key management – Having particular key generator

Virus-resistent mechanism for transaction verification to confir

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