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November 13, 2013November 13, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

SD Association Announces Ultra High Speed (UHS) Speed Class 3 for 4K2K Video Recording

SD card are not the fastest storage devices, but they are usually good enough for the job. One of the main use case is storage for video cameras, but with devices supporting 4K2K (2160p) recording they are close to their minimum limits. That’s why the SD association announced Ultra High Speed (UHS) Speed Class 3 (U3), which provides at least 30 MB/s write speed. The updated SD card speed classes are shown in the table below. Marks Operable Under Applications SD Memory Card Speed Class High Speed Bus I/F Full HD video recording HD still consecutive recording SD, miniSD, microSD SDHC, miniSDHC, microSDHC SDXC, microSDXC Normal Bus I/F HD ~ Full HD video recording SD video recording UHS Speed Class UHS-I Bus I/F UHS-II Bus I/F Full higher potential of recording real-time broadcasts and capturing large-size HD videos (UHS Speed Class1 denotes a 10 MB/s minimum write speed) SDHC […]

November 11, 2013November 11, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Weightless Roadmap – Silicon, Modules, SDKs, Base Stations and Networks

The Weightless Standard aims at using the “white space” spectrum, previously used by analog TV broadcasts, for free M2M / IoT communication coupled with low power and cost-efficient hardware offering a range of over 10 km. Longer term the target is to reach $2 hardware cost, and $2 yearly servicing costs. Companies involved with Weightless include Neul, ARM, CSR and Freescale among others. You can read my previous post about Weightless for a longer overview. The Weightless Special Interest Group (SIG) has recently revealed the hardware roadmap for the new standard, which I’ll summarize below. Weightless Chip Neul Iceni, the first weightless silicon, was officially announced in February 2013. The latest version of the chip taped in May 2013 integrates UHF radio operating between 410 and 790 MHz supporting both TV white space and narrowband operation. It is suitable for low volume production applications. A third generation will be taped […]

August 2, 2013 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

USB 3.1 Specifications Published, Supports Speeds Up to 10 Gbps

USB 3.0 specifications has been introduced in 2008 with support for up to 5Gbps bandwidth. Although, my PC has two USB 3.0 ports, I’m still very much living in a USB 2.0 world, as I’ve yet to use USB 3.0 peripherals… But progress never stops, and the USB 3.0 Promoter Group just approved the new USB 3.1 specification (PDF file) which can support data speeds up to 10 Gbps. So after Full Speed (12 Mbps, USB 1.1), High Speed (480 Mbps, USB 2.0), SuperSpeed (5Gbps, USB 3.0), we’ve now got SuperSpeed 10Gpbs (SUPERSPEED+) with USB 3.1. The standard is backwards compatible with USB 3.0 and USB 2.0, but apparently not USB 1.1. It will also allow for up to 100W to be sent through a USB cable. If you are a developer, three developer conferences are planned in order to provide technical details about USB 3.1: USB 3.1 Developers Day […]

March 14, 2013February 22, 2015 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Ittiam HEVC Decoder To Provide H.265 Video Decoding for Existing ARM Cortex-A Devices

H.264 is now the favorite codec for many applications, and all ARM SoC providing multimedia capabilities support it. However, a new codec called H.265 (aka HEVC) is coming with twice the compression ratio with the same quality saving a lot of money for those who have to pay for the bandwidth. The transition between video codecs is normally a slow process, but as it happens you may wonder if you’ll be able to play H.265 videos on your existing ARM Cortex A9/A15 devices which do not support H.265 hardware video decoding. The answer appears to be “Yes You Can!”, as Ittiam Systems announced an HEVC decoder specifically designed for ARM Cortex A processors. More specifically their software decoder will support: ARMv7 Cores with NEON – Cortex A8, Cortex A5, Cortex A9, Cortex A15, Cortex A7 and the multi core variants Qualcomm Snapdragon APQ8064/MPQ8064 , MSM8960 Ittiam HEVC decoder mainly targets devices such […]

December 30, 2012December 30, 2012 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

H.265/HEVC (High Efficiency Video Coding) Status and How-To Encode Videos to H.265

Now H.264 is the main standard used for video compression, and most devices that can support video playback feature an SoCs capable of H.264 hardware video decoding. Since 2004, however, work has been done to improve H.264, and a new standard called High Efficiency Video Coding (HEVC), also referred to as H.265, will eventually replace H.264, even though this will take a few more years to really gain traction. HEVC will be able to double the data compression ratio compared to H.264 with the same quality, or improve the quality using the same bitrate, and it can support 8K UHD (Ultra High Definition) with a resolution of 7680×4320 (4320p). This new video codec is a big deal for those who pay for video bandwidth (80% of internet traffic according to Ericsson), and it should also be welcomed by consumers, as it will magically double their storage device capacity, and they may […]

July 5, 2012July 5, 2012 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Toradex Releases Apalis Computer on Module Architecture Specification

Last month, Toradex released the preliminary specification for Apalis, a Computer on Module (CoM) architecture. Although the Apalis specification has been initially designed with ARM based processors in mind such as the Nvidia Tegra, Freescale i.MX and Texas Instruments OMAP processor families, it aims at being device and chip architecture independent. The Apallis specification defines the following: Interface Specifications: Signal Naming Convention – Rules to name pins (e.g. VCC, PWM1, PWM2, ) which are used for all modules. Signal Definition – Details about the pins named above Physical Pin Definition and Location Mechanical Specifications: Mounting and Fixation Module Size – Standard: 82 x 45mm | Extended: 82 x 56mm Pin Numbering – There is a total of 321 pin numbers (but a few less actually pins) Electrical Specifications: Power Supplies Power Control Back Feed Protection This specifications also defines mounting mechanisms for active cooling (e.g. heat spreaders) in case those […]

May 9, 2012July 17, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

IEEE Updates 802.11 Standard to Support 600Mb/s Wi-Fi and Approves 802.1aq Standard for Large Ethernet Networks

IEEE has recently announced a standard update for WiFi (802.11-2012) which adds support for 3.7 GHz bands, 600Mb/s throughput and mesh networking among other things, and approved 802.1aq Shortest Path Bridging standard, which will streamline the creation and management of large Local and Metropolitan Area networks by using the next-generation VLANs. IEEE Wi-Fi 802.11-2012 Standard IEEE 802.11-2012 is the 4th revision of the Wi-Fi standard. It has been expanded by supporting faster and more secure devices, while offering improved Quality of Service and cellular network hand-off. Key amendments to the standard: IEEE 802.11n now defines MAC and PHY modifications to enable throughput up to a maximum of 600Mb/s Direct-link setup “Fast roam” Radio resource measurement Operation in the 3650-3700MHz band Vehicular environments, mesh networking, security, broadcast/multicast and unicast data delivery Interworking with external networks and network management. IEEE 802.11 is available for purchase for $5 at the IEEE Standards Store. […]

April 5, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

HbbTV Specification 1.5 Adds MPEG DASH Support

The HbbTV (Hybrid Broadcast Broadband TV) consortium, an European initiative for web-based smart TV applications for TVs and set-top boxes, has recently released version 1.5 of the HbbTV specification. The latest specification adds support for HTTP adaptive streaming based on MPEG-DASH (ISO/IEC 23009-1), improving the perceived quality of video presentation on busy or slow Internet connections. It also enables content providers to protect DASH delivered content with multiple DRM technologies based on the MPEG CENC specification (ISO/IEC 23001-7). Finally, HbbTV Version 1.5 significantly enhances access to broadcast TV schedule information (DVB-SI EIT-Schedule), enabling operators to produce full 7-day electronic program guides (EPG) as HbbTV applications that can be deployed across all HbbTV receivers to provide a consistent user experience. The diagram above show the main improvement of HbbTV 1.5 over HbbTV 1.0 that is, as mentionned above, EIT-Schedule for EPG, MPEG-DASH for streaming video and MPEG CENC for multiple DRM […]