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		<title>Оптические диски: видеопоток 250 Мбит/с, скорость вращения - 15000 об/мин.</title>
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					<a href="http://www.hdtv.ru/">HDTV.ru</a> > Новости индустрии > <a href="http://www.hdtv.ru/news/industry/4203-opticheskie-diski-videopotok-250-mbits.html">Оптические диски: видеопоток 250 Мбит/с, скорость вращения - 15000 об/мин.</a>
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					<h1>Оптические диски: видеопоток 250 Мбит/с, скорость вращения - 15000 об/мин.</h1>
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					<small>23.05.2008</small>
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Исследователи из японской компании NHK (Japan Broadcasting Corporation), которая, напомним, является разработчиком формата ультравысокого разрешения Ultra High-Definition TV, разработали оптические диски, которые имеют интересные и необычные характеристики.<br /><br />Толщина их нового носителя сопоставима с толщиной обычной бумаги — представленные диски имеют толщину 0,1 мм. Скорость вращения такого диска — 15 тыс. об/мин. Заявлено, что в таком режиме работы можно достичь скорости считывания в 250 Мбит/с.<br /><div align="center"><img src="http://www.hdtv.ru/uploads/posts/2008-05/1211469728_nhk_ultrathin_optical_disc1.gif" style="border: none;" alt='Оптические диски: видеопоток 250 Мбит/с, скорость вращения - 15000 об/мин.' title='Оптические диски: видеопоток 250 Мбит/с, скорость вращения - 15000 об/мин.' /></div><br />Используемые сегодня оптические носители имеют скорость вращения намного более низкую, чем 15000 об/мин., и ограниченную примерно 10000 об/мин. Добиться высокой точности при контроле луча лазера удалось при совместной работе с инженерами технологического университета в Нагаока.<br /><br />Такие диски можно использовать для хранения и воспроизведения сигнала HDTV с видеопотоком ~250 Мбит/с, например, широковещательным компаниям, работающим с HD-видео. На фоне этого показатели односкоростных дисков Blu-ray (36 Мбит/с) — совсем невысокие.<br /><br />Предполагается, что за счёт тонкого профиля диски NHK можно будет использовать «пачками», т.е. помещать несколько носителей в один картридж для получения более ёмкого хранилища. Точный объём пока не сообщается, но говорится о планах разработчиков по его увеличению.<br /><br />Благодаря эффективной схеме управления лазером в NHK планируют добиться ещё более высокой частоты вращения и, следовательно, скорости передачи данных. Такие решения создадут почву для более широкого распространения формата HDTV и последующих за ним, например, Ultra High-Definition TV.<br /><br />Публичная демонстрация тонких и гибких дисков NHK состоится 22-25 мая на выставке Open House 2008 в Японии.
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