LandOfFree - US Patents - Listing for Cryptography

Cryptography – Communication system using cryptography

Data transmission system

Cryptography – Key management – Having particular key generator

Data transmission system capable of carrying out a data transmis

Cryptography – Communication system using cryptography – Time segment interchange

Data transmission system for prevention of unauthorized copy...

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data transmission systems

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Data transmitter and receiver

Cryptography – Video cryptography – Video electric signal modification

Data transmitting apparatus

Cryptography – Key management – Key distribution

Data transmitting apparatus, data transmitting method, data...

Cryptography – Video cryptography – Video electric signal modification

Data transmitting apparatus, receiving apparatus, and data...

Cryptography – Key management – Having particular key generator

Data transmitting equipment

Cryptography – Video cryptography – Video electric signal modification

Data transmitting/receiving method, data transmission...

Cryptography – Communication system using cryptography

DATA TRANSMITTING/RECEIVING METHOD, DATA TRANSMITTER, DATA...

Cryptography – Particular algorithmic function encoding

Data type preserving encryption

Cryptography – Particular algorithmic function encoding

Data-dependent binary encoder/decoder

Data-locking system

Cryptography – Communication system using cryptography – Symmetric key cryptography

Data-processing arrangement comprising confidential data

Cryptography – Particular algorithmic function encoding

Data-processing device and method of operating said device

Data-protecting system

Database system with local information remotely supported with d

Database usage metering and protection system and method