LandOfFree - US Patents - Listing for Cryptography,Communication system using cryptography

Cryptography – Communication system using cryptography – Frequency shift or inversion

Digital voice-band spectrum inversion apparatus

Cryptography – Communication system using cryptography – Wireless communication

Disguised transmission system and method

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

Disk drive with flexible data stream encryption

Cryptography – Communication system using cryptography – Wireless communication

Dual processor framer

Cryptography – Communication system using cryptography – Frequency shift or inversion

Duplex analog scrambler

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

DVD data descrambler for host interface and MPEG interface

Cryptography – Communication system using cryptography – Symmetric key cryptography

Dynamic key generation and confidential synchronization of...

Cryptography – Communication system using cryptography – Symmetric key cryptography

Dynamic system bus encryption using improved differential...

Cryptography – Communication system using cryptography – Position dependent or authenticating

Dynamically adjustable software encryption

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

Early detection system and method for encrypted signals...

Cryptography – Communication system using cryptography – Time segment interchange

Efficient encryption and authentication for data processing...

Cryptography – Communication system using cryptography – Symmetric key cryptography

Efficient handling of messages, data and keys in media...

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

Efficient packet encryption method

Cryptography – Communication system using cryptography – Time segment interchange

Efficient selection and mixing of multiple sub-word items packed

Cryptography – Communication system using cryptography – Time segment interchange

Efficient stream cipher system and method

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

Electronic communications and control system

Cryptography – Communication system using cryptography – Symmetric key cryptography

Electronic device with encryption/decryption cells

Cryptography – Communication system using cryptography – Symmetric key cryptography

Electronic device with encryption/decryption cells

Cryptography – Communication system using cryptography – Having compression

Electronic watermarking method and apparatus for compressed...