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Linux powers WiFi-equipped LCD-TV

Jan 11, 2006 — by LinuxDevices Staff — from the LinuxDevices Archive — 1 views

[Updated Jan. 12] — Sharp used embedded Linux and Devicescape's WiFi stack to build a 32-inch flat-panel TV/PC display with a built-in 802.11a/b/g wireless media adapter. The IT-32X2 has a built-in HDTV tuner, and USB ports for viewing photos from digital cameras or USB storage devices.

(Click for larger view of the Sharp IT-32X2 in silver)

According to Devicescape, Sharp used a beta version of its Secure Wireless Client to build both the IT-32X2 and the CE-MR01 wireless multimedia adapter. Sharp first completed the standalone media adapter, and then incorporated the design into the flat-panel TV, Devicescape says.

Both the CE-MR01 standalone adapter and the IT-32X2 flat-panel TV work in conjunction with Sharp Media Library Server software, which is only available for Windows XP. Licenses for four XP computers are included with the IT-32X2.

The IT-32X2 runs Linux on a Sigma Designs EM8620L, an SoC (system-on-chip) incorporating an ARM core and video processor with hardware acceleration for decoding a variety of compression formats. The EM8620L was also used in a multimedia adapter reference design from Toshiba, and will soon be replaced by a pin-compatible upgrade announced at CES last week.

Translations of Sharp's Japanese-language web pages suggest the IT-32X2 can display outputs from two sources simultaneously, either side-by-side, or one within the other. For example, an attached PC display could occupy half the screen, while the built-in TV tuner controlled the other half.

Other features and specifications for the IT-32X2 include:

  • 27.5 x 15.4 inch, 1,366 x 768 pixel backlit black LCD
  • 8-bit color
  • 450 cd/m2 maximum luminance
  • 800:1 contrast ratio
  • 0.511mm x 0.511mm pixel pitch
  • 170-degree vertical/horizontal viewing angles
  • 12ms refresh rate
  • Hardware input selector button
  • Aspect ratio pull-down functions
  • 20-Watt stereo amp and speakers, with Dolby processing
  • 3.5mm mini-stereo PC sound in jack
  • Brightness sensor adjusts brightness to ambient lighting
  • VGA and DVI PC inputs
  • 10/100 Ethernet port
  • NTSC digital HD tuner, UHF, VHF, and CATV
  • 3 x RCA video inputs
  • RCA audio I/O ports
  • Supports up to three USB mass storage devices
  • AOSS (AirStation One-touch Secure System) one-button wireless config when used with Buffalo access points
  • Consumes 147 Watts at full brightness level, and a claimed 0.1W in standby
  • Weight: 65lbs (29 kg)

Availability

The IT-32X2 became available in Japan in mid-summer, 2005, in silver or black. Sharp has not announced a US launch date for the device, however. Sharp also offers a version of the device without WiFi, USB, and Ethernet, called the IT-32M2.

This story was corrected on Jan. 12 to reflect that the IT32X2 is powered by a standalone EM8620L chip, rather than a chipset with a separate applications processor.


 
This article was originally published on LinuxDevices.com and has been donated to the open source community by QuinStreet Inc. Please visit LinuxToday.com for up-to-date news and articles about Linux and open source.



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