EPN April 2012 - (Page 10)

new products First Tbit/s Transmission optical channel transmits over 10,000km Next-Gen CMOS Image Sensor 100-Core Media Processor back-illuminated model layers pixel section doubles performance, half power consumption EC has announced the demonstration of 1.15Terabit/s, ultra-long haul optical transmission over 10,000km using optical superchannel technology. This is the first instance that a terabit/s channel generated from a single laser source has been transmitted over such a distance, says the company. Four superchannels were transmitted together by WDM (wavelength division multiplexing) to achieve a total capacity of 4Terabit/s and a spectral efficiency of 3.6bit/s/Hz. According to the company, the results demonstrate that practical high-capacity transmission for transoceanic communication can be achieved using cost-effective superchannel technology. Optical superchannels allow phase-locked carriers with independent modulation to overlap in frequency following the principles of OFDM (orthogonal frequency division multiplexing). This enables efficient bandwidth utilisation, allowing higher spectral efficiency and higher data rate/laser through parallelisation. The demonstration used optical multitone generation, large-core, low-loss fibre, intradyne digital coherent detection, and digital equalisation at higher oversampling, along with well-established technologies such as EDFAs and DP-QPSK modulation. The experiment yielded a 2dB system margin above the FEC threshold without using processingintensive MAP or MLSE algorithms. NEC CorporAtioN 10 N next-generation, back-illuminated CMOS image sensor from Sony layers the pixel section containing formations of back-illuminated structure pixels onto chips containing the circuit section for signal processing. This is instead of supporting substrates for conventional back-illuminated CMOS image sensors. The company claims that this structure enhances image quality, functionalities and provides a more compact size that will lead to the evolution of cameras for smaller size, high pixel rate versions. The sensor has large-scale signal processing circuits required for higher image quality. It has also been developed using the company’s RGBW Coding function, which facilitates low noise, high quality image capture even in low light condition, and the proprietary High Dynamic Range Movie function, which achieves brilliant colour even when taking pictures against bright light. Conventional CMOS image sensors mount the pixel section and analogue logic circuit on top of the same chip, which require numerous constraints, for example, to suppress noise and optimise the characteristics of pixels and circuit transistors. As the pixel section and circuit section are independent chips, a manufacturing process can enable the pixel section to be specialised for higher image quality and the circuit section for higher functionality. SoNy A ptimised for Android 4.0, ZiiLABS believes its 100-core ZMS-40 processor is ground-breaking. It combines 96 of the company’s StemCell media processing cores, double the number in the company’s previous processor, with four 1.5GHz ARM Cortex-A9 CPUs. It therefore delivers twice the media performance of the ZMS-20, while running the larger array at lower clock speeds. This increases energy efficiency and reduces power consumption by up to 50%. For handheld devices such as tablets, it can deliver high-resolution H.264 HP decoding of up to 3840x1080 for true 1080p 3D stereo, 2560x1600 (WQXGA) display resolution support, higher-quality video encoding and immersive OpenGL ES graphics and support for the imminent HEVC (high efficiency video coding) standard. HEVC, also known as H.264, can increase data compression ratio by up to a factor of two, compared to H.264. It targets the next-generation HD TV market which can support scalable resolutions from 320x240 to 1080p with improved picture quality in terms of noise level, colour and dynamic range, and all the way up to an resolution of 7680x4320. Being fully programmable and with equal range of parallelism, the processors can handle the onerous computational requirements of this new codec and support higher resolutions that are beyond today’s display systems, claims the company. ZiiLABS O www.epn-online.com/search?search_keyword=47089 April 2012 – epn issue n° 04 www.epn-online.com/search?search_keyword=47085 www.epn-online.com/search?search_keyword=47091 http://www.epn-online.com/search?search_keyword=47089 http://www.epn-online.com/search?search_keyword=47085 http://www.epn-online.com/search?search_keyword=47091

Table of Contents for the Digital Edition of EPN April 2012

Cover
RS Components
Contents
Edito
Bergquist
Contents Web
LEMO
New Products
Traco electronic
Panasonic
Digikey
Digikey
International Rectifier
Cables & connectors
Hirose
Mouser
Adtech Ceramics
International Rectifier
RF & Wireless
Digikey
New Products
Teseq
Fischer Connectors
Analog Devices
Tech report
Automotive Electronics
Digikey
Smartgrid
Coilcraft
Sensor & Test
Renewable Energy
Digikey
40th anniversary interview
Industrial Automation
Digikey
New products
PCIM
Hannover
Test corner
Power perspective
Distribution spotlight

EPN April 2012