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Feature Articles: Services for Hikari Era: Terminal Configuration Technologies
 Service and Terminal Component Technology Development Initiatives for the Optical Fiber Broadband Era (Hikari Era)
Abstract
In the optical fiber broadband era (hikari era), which has just begun, optical fiber is being used to transmit large amounts of digital information at high speed, providing a great variety of services to users. We introduce various research and development activities for terminal component technologies.
- Voice Processing Technology for Realistic-quality Voice and Rich Telecommunication Services
Abstract
This article describes the speech coding, acoustic design, and signal processing technologies for the high-quality telephone service that NTT provides over the Next Generation Network (NGN). Since the conventional telephone system uses a limited frequency range less than that of the human voice, voice individuality and clarity are sometimes insufficient. On the other hand, the high-quality NGN telephone service enables realistic-quality voice communication. A stereo conference phone under development for future services is also described.
- Visual Softphone: New Ways to Communicate
Abstract
NTT is providing a visual softphone for use on Windows personal computers as a tool for expanding the means of communication. This article provides an overview of it and describes various communication formats that it can provide.
- Software H.264 Encoder Engine for Online Video Delivery Service Cost Reduction
Abstract
This article describes the software H.264 encoder engine that we have developed in NTT Cyber Space Laboratories. It implements technologies for fast encoding, high compression performance, and reduced encoder operation cost, which are all important features for reducing the cost of online video delivery services. In tests, it outperformed conventional encoders. It is also suitable for use in creating content for online video delivery services.
- Network Processing Technology for Terminals Enabling High-quality Services
Abstract
This article describes the RENA-SoC, which is a network processor that provides basic functionalities required for a home or SOHO (small office home office) network gateway in the fiber-to-the-home (FTTH) broadband era (RENA: routing engine for NGN access, SoC: system on a chip). Network processing is performed by a packet processing engine, and the application processing load is distributed over two microprocessors to provide the user with high-quality stable services.
Regular Articles
- Cabling Technologies Providing More Optical Cabling Potential in Multi-dwelling Unit Buildings
Abstract
For optical access services to multi-dwelling units (MDUs), we have developed compact optical splitter modules that provide greater installation flexibility and indoor optical cabling that can be installed on the building’s exterior walls. They overcome problems encountered in providing optical fiber cabling systems to MDUs and installing splitter modules in the limited space available in main-distributor-frame boxes as well as other difficulties caused by a lack of space in conduits or the absence of conduits.
- Lower-cost Cicada-resistant Optical Drop Cable with Better Workability
Abstract
We have developed a simpler type of cicada-resistant optical fiber drop cable that offers better workability and is less expensive than the older one. It resulted from a rethink of the protective walls and sheath design.
Global Standardization Activities
- Standardization Activities for Cloud Computing
Abstract
This article describes standardization activities for cloud computing. Since cloud computing involves a wide range of technical and business elements, the targets of cloud computing standardization are diverse and many standards organizations are studying cloud computing focusing on their respective areas of expertise. The study areas can be broadly classified into: (i) framework development, terminology definition, use cases, and requirements identification, (ii) cloud configuration management, and (iii) inter-cloud federation. Cloud computing standardization was started by industrial organizations, which develop what are called forum standards. Since late 2009, de jure standards bodies, such as ITU-T and ISO/IEC JTC1, and ICT-oriented standards bodies (ICT: information and communications technology), such as IEEE (Institute of Electrical and Electronic Engineers) and IETF (Internet Engineering Task Force), have also begun to study cloud computing standardization. In the USA and Europe, government-affiliated organizations are also discussing it.
Practical Field Information about Telecommunication Technologies
- Fault Cases and Countermeasures against Damage to Access System Facilities Caused by Wildlife
Abstract
Wildlife that damages access system facility is classified into three groups (rodents, insects, and birds). We have investigated the types of damage and have studied countermeasures. Such countermeasures will contribute greatly to reducing maintenance costs and improving the reliability of access system facilities. This article is the fifth in a bimonthly series on the theme of practical field information about telecommunication technologies. This month’s contribution is from the Access Engineering Group, Technical Assistance and Support Center, Maintenance and Service Operations Department, Network Business Headquarters.
External Awards/Papers Published in Technical Journals and Conference Proceedings
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