18th November 2009

Imagination’s POWERVR VXD390 adds key new functions to maximise system level performance

Latest video decoder IP core further extends technology lead


Yokohama, Japan: Imagination Technologies, the leading multimedia chip technologies
company, announces the latest member of its video decode IP
core family, POWERVR VXD390: a low power, high performance, multi-standard and
multi-stream high definition, hardware video decoder IP core that now also
offers a broadcast quality video scaler, robust error and non-compliant stream
handling capabilities, enhanced JPEG processing and optimisations for DDR3
memory support.

VXD390 has
support for all international broadcast standards including, MPEG-2, H.264,
VC-1, AVS and other key video standards including Sorenson Spark. VXD390
supports MPEG-4 and H.264 profiles to enable customers to create a DivX® format
compliant solution.

VXD390 is
capable of decoding full high-definition H.264 L4.2 (1080P60) and can decode
multiple streams simultaneously to fully meet Blu-ray and other multi stream
decode requirements. It has industry leading low frequency requirements,
typical H.264 High profile streams being decoded with a clock rate of just
70MHz.

POWERVR VXD HD
video decode cores have been proven in a growing portfolio of devices now
shipping from leading OEMs. Imagination’s video decoder family is already
shipping in a wide range of markets including: netbook, MID, navigation, phone
and media player.

Says Tony
King-Smith, VP marketing, Imagination: “”POWERVR VXD has a major impact on multimedia system
performance by not only performing the core video decode function, but
additionally handling errors, non compliant streams, and rotating or scaling
the output image, tasks which traditionally require multiple cycles on the host
CPU or GPU. Our core leaves almost 100% of the system CPU & GPU free,
requiring only a few mips for the drivers. This is particularly important for
mobile platforms where every clock cycle and memory access counts, but also has
a big impact on the new wave of power conscious consumer products.””

POWERVR video
cores are targeted at a wide range of applications including mobile devices,
HDTV, IDTV, set top box (STB), Blu-ray
and media players and are supported by an extensive set of hardware
drivers and growing ecosystem of partners providing support for the POWERVR
video decode and encode family of IP cores.

Inside POWERVR VXD390

The POWERVR VXD
family is already the industry’s low system bandwidth leader. With the debut of
VXD390 it has been optimised to work efficiently with the latest DDR3 memories,
whilst maintaining compatibility with all other major memory standards.

Post processing
capabilities have also been enhanced, adding to the rotation function found in
the earlier VXD380. The addition of a broadcast quality scaler enables HD video
to be scaled down to fit the required display resolution, leading to bandwidth
savings of around 100 Mbytes/sec compared with using an external scaler, as
well as associated power savings from limiting memory accesses.

The POWERVR
VXD390 also includes an enhanced JPEG decoder to enable high-performance still
image browsing – increasingly a key function in many of today’s demanding user
interfaces.

POWERVR VXD’s
stream processing and IP core management is handled by Imagination’s META
embedded processor for maximum flexibility. This performs all header decoding,
allowing the VXD390 to cope with non-standard bit streams. The host CPU
interacts with the META-based stream manager for error recovery and concealment
options which include comprehensive error trapping and reporting so that
customisable recovery and concealment strategies can be implemented that match
the needs of each individual end-application, even when used in multi-stream
decode environments. The META processor also controls and reconfigures the
various hardware engines that deliver the VXD390’s ultra low power on a frame
by frame basis.

VXD 390 supports
all HD resolutions and can be configured on a time division multiplex basis to
handle single, dual and multi-stream HD decoding. This allows functions such as
picture-in picture and multi-picture menus for advanced EPG applications.

Imagination’s
highly respected advanced power management techniques ensure that all POWERVR
VXD cores have low power requirements enabling HD video to be consumed for
hours at a time on power-constrained devices such as portable media players and
mobile phones.

POWERVR VXD 390
is available for licensing now.

About Imagination Technologies

Imagination
Technologies Group plc (LSE:IMG) – a global leader in multimedia and
communication silicon technologies – creates and licenses market-leading
processor cores for graphics, video, multi-threaded embedded processing/DSP and
multi-standard communications applications. These silicon intellectual property
(IP) solutions for systems-on-chip (SoC) are complemented by strong array
of software tools and drivers as well as extensive developer and
middleware ecosystems. Target markets includemobile phone, handheld multimedia, home consumer entertainment,
mobile and low-power  computing,
and in-car electronics.Its licensees include
many of the leading semiconductor and consumer electronics companies.
Imagination has corporate headquarters in the United Kingdom, with sales
and R&D offices worldwide. See: www.imgtec.com.

DivX and the
associated DivX logos are registered trademarks of DivX, Inc.


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