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Last $34.17 USD
Change Today +0.49 / 1.45%
Volume 236.1K
NTT On Other Exchanges
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As of 8:04 PM 05/1/15 All times are local (Market data is delayed by at least 15 minutes).

nippon telegraph & tele-adr (NTT) Key Developments

Nippon Telegraph and Telephone Corporation and Oki Electric Industry Co., Ltd. to Jointly Develop New Technology

Nippon Telegraph and Telephone Corporation and Oki Electric Industry Co., Ltd. have jointly developed a new technology that combines the PON technology with the wavelength and time division multiplexing technology - 'WDM/TDM-PON technology.' The two companies have successfully demonstrated the jointly developed optical access system featuring the WDM/TDM-PON technology in ultra-large capacity transmission at 40Gbit/s over a 40km distance servicing 1,024 users. In other words, this new optical access system enables a transmission capacity of 40 times that of the existing system while accommodating 32 times more users. This research and development project was contracted to NTT and OKI by the Ministry of Internal Affairs and Communications under a research contract titled 'Research and development of wide area optical access networks.' Research and development in the field of next generation optical access network systems has been tasked with a major objective of achieving an enhanced transmission capacity in order to handle ever-increasing traffic of broadband services users. Another important objective of R&D has been to achieve a longer transmission distance and increase the number of users supported per system. This will make possible efficient operation and lower power consumption of a network as a whole as a result of overall reduction of the number of central offices as well as the number of system equipment located in such central offices. Thus, further technological innovation, innovation that pushes the envelope of the conventional time division multiplexing (TDM-) PON technology, is necessary to allow for a larger transmission capacity, wider coverage and an increased per system number of users. To this end, NTT Access Network Service Systems Laboratories (NTT labs.) and OKI have devoted their efforts in developing WDM/TDM-PON technology, a combination of the conventional TDM-PON technology with the Wavelength Division Multiplexing (WDM) technology popularly used in Core/Mero networks for transmission over long distances. The WDM/TDM-PON technology has combined advantages; it efficiently accommodates multiple users by using the TDM-PON technology while largely enhancing the total bandwidth and the transmission capability over longer distances with smaller optical power loss by using the WDM. The jointly developed WDM/TDM-PON technology consists of wavelength-tunable burst-mode optical transceivers, a wavelength multiplexed burst-mode optical amplifier and a wavelength tuning protocol. Wavelength-tunable burst-mode optical transceivers [NTT labs and OKI]: In a WDM/TDM-PON, each Optical Network Unit (ONU) on the customer premises communicates at one of four pre-determined wavelengths. Using different ONUs for each of these wavelengths would increase management cost and the risk of improper connection. A solution is to equip the ONU with an optical transceiver capable of tuning to different wavelengths (that is colorless). Two types of wavelength-tunable burst-mode optical transceiver have been developed in this project. Wavelength multiplexed bust-mode optical amplifier [NTT]: Achieving a 40km transmission distance and a split ratio of 1 to 1,024 over a WDM/TDM-PON requires an optical amplification technology that can economically amplify wavelength multiplexed upstream burst signals. Also important is to equalize the signal output power level for upstream bursts and to expand the input dynamic range.

Nippon Telegraph and Telephone Corporation Provides Earnings Guidance for the Year Ending March 31, 2016

Nippon Telegraph and Telephone Corporation provided earnings guidance for the year ending March 31, 2016. For the year, the company expects operating revenues of JPY 417 billion, non-operating revenues of JPY 28 billion, recurring profit of JPY 277 billion and operating income of JPY 281 billion.

Nippon Telegraph and Telephone Corporation Launches Netrosphere Concept for Network Development

Nippon Telegraph and Telephone Corporation has introduced the 'NetroSphere concept' to form the carrier network infrastructure. Instead of using conventional purpose-built high-functionality equipment, NetroSphere seeks to divide them into small modular components, and flexibly assemble those components at will. The concept is designed to quickly form proportional networks that can offer required functionality, capacity, and level of redundancy in accordance to the user's needs. NTT will work on the development of 'Magonia' and 'Multi-Service Fabric'. He operator plans to accelerate these R&D initiatives by collaboration with other carriers and vendors.

Nippon Telegraph and Telephone Corporation Reports Unaudited Consolidated Earnings Results for the Third Quarter Ended December 31, 2014

Nippon Telegraph and Telephone Corporation reported unaudited consolidated earnings results for the third quarter ended December 31, 2014. For the period, the company reported operating revenues of JPY 2,808,859 million against JPY 2,759,114 million a year ago. Operating income was JPY 320,023 million against JPY 332,093 million a year ago. Income before income taxes and equity in earnings of affiliated companies was JPY 318,025 million against JPY 348,325 million a year ago. Net income attributable to the company was JPY 159,609 million or JPY 141.35 per share against JPY 160,764 million or JPY 146.23 per share a year ago.

Nippon Telegraph and Telephone Corporation Announces Unaudited Consolidated Earnings Results for the Nine Months Ended December 31, 2014; Provides Dividend Guidance for the Year Ending March 31, 2015; Provides Earnings Guidance for the Year Ending March 31, 2015

Nippon Telegraph and Telephone Corporation announced unaudited consolidated earnings results for the nine months ended December 31, 2014. For the nine months, the company reported operating revenues of JPY 8,182,527 million against JPY 8,025,184 million a year ago. Operating income was JPY 910,947 million against JPY 985,120 million a year ago. Income before income taxes was JPY 910,182 million against JPY 1,024,103 million a year ago. Net income attributable to the company was JPY 449,941 million or JPY 407.69 per basic share against JPY 484,304 million or JPY 418.78 per basic share a year ago. Net cash provided by operating activities was JPY 1,399,729 million against JPY 1,662,605 million a year ago. Payments for property, plant and equipment were JPY 1,108,674 million against JPY 1,165,357 million a year ago. Payments for acquisitions of intangible assets were JPY 260,862 million against JPY 326,638 million a year ago. For the year ending March 31, 2015, the company expects a dividend of JPY 90 per share compared to JPY 90 a year ago. The company provided consolidated earnings guidance for the year ending March 31, 2014. For the year, the company expects operating revenues of JPY 11,010,000 million, operating income of JPY 1,095,000 million, income before income taxes of JPY 1,075,000 million, net income attributable to the company of JPY 529,000 million or JPY 479 per basic share.

 

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