Feeds

Digital home group touts convergence spec

Plug'n'Pray to come to hi-fis, DVD players etc.

  • alert
  • submit to reddit

The Digital Home Working Group yesterday issued the first full version of its scheme for bringing the worlds of home entertainment systems and home computing together through wired and wireless links.

And on the back of the launch, the convergence industry body re-named itself the Digital Living Network Alliance (DLNA), the better to focus on promoting interoperability than defining specifications to make it happen.

The DLNA's Home Networked Device Interoperability Guidelines 1.0 define content delivery and display devices: Digital Media Servers and Digital Media Renders, in the DLNA's parlance. One server should be capable of delivering content to multiple display devices, and each display device should be capable of receiving data from multiple servers.

The DLNA's framework to make this possible uses Universal Plug'n'Play (UPnP) for device discovery and media management. Underlying that are IP-based Ethernet and Wi-Fi transport networks and HTTP for content delivery. All these technologies need to be supported by servers and clients that want to be declared DLNA compliant.

The organisation expects to begin giving its stamp of approval to products in Q4. Approved playback devices must be capable of handling JPEG for still images, MPEG 2 for video and LPCM (Linear Pulse Code Modulation) for multi-channel audio. LPCM is the format used by DVD Audio and DVD Video. LPCM offers up to 8 channels of 48kHz or 96kHz sampling frequency and 16, 20 or 24 bits per sample.

These are baseline formats - devices can support others, such as MP3 or WMV, but they must support these three for DLNA compliance. Indeed, the DLNA itself plans to add other content types to its Guidelines over time. An "upcoming addendum" to the 1.0 spec. will add GIF, PNG, TIFF, MP3, WMA, AC-3, AAC, ATRAC 3+, MPEG 4 parts 2 and 10, and WMV 9 to the list.

The DLNA also said it is preparing specifications for 'smart' remote control devices in version 1.1 of the Guidelines, which will take in not only dedicated devices but PDAs and mobile phones too.

The DLNA comprises 145 members from the IT, CE and communications worlds, but is led by Intel, Microsoft, IBM, Sony, Nokia, Samsung, Panasonic and others. ®

Related stories

Gates pitches Windows Concept as home hub of everything
Intel pours VC cash into Digital Home
Nokia, Sony, Philips tout connectivity Utopia
Nokia makes stealth moves on your living room
Consumer giants encircle the home PC
Gates wraps Brave New World with hefty fees
Intel coughs up for the Digital Home
Whatever happened to the Windows Media Center?

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.