Uplink timing synchronization and access control for a...

Uplink transmission and reception techniques for a...

Upper layer node, lower layer node, and node control method

Upper-level protocol authentication

Upstream bandwidth management methods and apparatus

Upstream transmission using multiple transmission tags and...

Url based filtering of electronic communications and web pages

Url document viewing through a plug-in application for a...

Url notification device for portable telephone

Url-based certificate in a pki

Url-encoded internet access card for retrieving and viewing...

Usage-based billing for voice over packet communications

Usage-based billing method and system for computer networks

Usb (universal serial bus) modem

Usb-based networking and i/o hub

Use and generation of a session key in a secure socket layer...

Use of 4-hydroxy- or 4-aminobenzimidazole or their...

Use of a public key key pair in the terminal for...

Use of an encryption server for encrypting messages

Use of booking factors to redefine available bandwidth