LandOfFree - US Patents - Listing for Cryptography

Cryptography – Communication system using cryptography – Wireless communication

Apparatus and method for concealing data bursts in an analog scr

Cryptography – Communication system using cryptography – Speech scrambler detail

Apparatus and method for concealing data bursts in an analog...

Cryptography – Facsimile cryptography – Including generation of an associated coded record

Apparatus and method for confirming, timestamping, and...

Cryptography – Cryptanalysis

Apparatus and method for continuous scrambling while transmittin

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus and method for controlling access to and interconnecti

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus and method for controlling access to and interconnecti

Cryptography – Cryptanalysis

Apparatus and method for controlling access to software

Cryptography – Video cryptography – Video electric signal masking

Apparatus and method for controlling secret data by using positi

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus and method for cryptographic companion imprinting

Cryptography – Communication system using cryptography – Time segment interchange

Apparatus and method for data encryption with block selection ke

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus and method for demonstrating and confirming the status

Cryptography – Key management – Key escrow or recovery

Apparatus and method for depositing encryption keys

Cryptography – Communication system using cryptography – Wireless communication

Apparatus and method for determining uplink ciphering...

Cryptography – Communication system using cryptography – Wireless communication

Apparatus and method for digitally processing signals in a radio

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

Apparatus and method for effecting a key change via a cryptograp

Cryptography – Video cryptography – Video electric signal modification

Apparatus and method for embedding and extracting...

Cryptography – Video cryptography – Video electric signal masking

Apparatus and method for embedding and extracting...

Cryptography – Communication system using cryptography – Data stream/substitution enciphering

Apparatus and method for embedding and extracting...

Cryptography – Video cryptography – Video electric signal modification

Apparatus and method for embedding and extracting...