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Дата: 07.11.05, @10:35
' Japan demonstrates next-gen TV broadcast ' ' Yoshiko Hara ' EE Times ' (11/03/2005 3:16 PM EST) ' ' TOKYO — Aiming at next-generation broadcasting, Japan Broadcast Corporation ' (NHK) has demonstrated a live relay of a 4x x 8k resolution Super Hi-Vision program ' connecting a 260-km distance by a fiberoptic network. ' ' NHK's next-generation broadcasting system can convey the sensation of reality ' to viewers. Super Hi-Vision is the provisional format for that purpose, achieving ' 7680 x 4320 pixels. ' ' It already demonstrated the images of Super Hi-Vision at the 2005 World Exposition, ' Aichi, Japan, held from March to September in Aichi this year using a preliminary ' prepared video footage. ' ' NHK developed a Super Hi-Vision camera equipped with 8 megapixel CCD image ' sensors that can take 4k x 8k images. In the field test, it sent the two cameras to ' a sea park and sent baseband signals without image compression using an fiberoptic ' network formed by multiple network companies. ' ' The signal of the total 24 gigabits per second was divided into 161.5 Gbps HD-SDI ' signals to sent using the DWDM (dense wavelength division multiplex) method. ' ' "Super Hi-Vision has huge information and was difficult to transmit. Using 16 waves ' on optic fiber, we succeeded a live relay over a long distance. This means that ' Super Hi-Vision proved the possibility of being a future TV broadcasting technology," ' said Mikio Maeda, senior research engineer of the laboratory. ' ' http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=173402762 |
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