Yusaku Okamura

Multi-carrier transmission system and method thereof

Capacity allocation for ADSL

Data transmission device and data transmission method capable of minimizing delay of fast data

Communication quality controller and a communication quality control method

Data transmission device and data transmission method capable of minimizing delay of fast data both in normal conditions and noisy conditions

FAILURE INFORMATION DELIVERY SYSTEM, FAILURE MANAGEMENT SERVER, MOBILE OBJECT COMMUNICATION APPARATUS, FAILURE INFORMATION DELIVERY METHOD, AND PROGRAM

CONGESTION INFORMATION DELIVERY SYSTEM, MOBILE TERMINAL, SERVER, METHOD OF CONGESTION INFORMATION DELIVERY AND COMPUTER-READABLE MEDIUM STORING PROGRAM

SEARCH SYSTEM, MANAGEMENT SERVER, MOBILE COMMUNICATION DEVICE, SEARCH METHOD, AND PROGRAM

A multi-carrier transmission system

Mehrträger-Übertragungssystem A multi-carrier transmission system