CEA Issues Specs For 3DTV Closed Captioning, Glasses

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The Consumer Electronics Association announced the publication of a standard for 3DTVs to render closed-captioning services and another for synchronizing active-shutter 3D glasses via an infrared signal.

The first spec, CEA-708.1, "Digital Television (DTV) Closed Captioning: 3D Extensions," specifies signaling to allow closed captioning to be rendered with stereoscopic 3D program content. The standard allows for a standardized method to set a value for the perceptual depth for closed-captioning text, or a series of values that change over time.

The other -- CEA-2038, "Command-Driven Analog IR-Synchronized Active Eyewear" -- defines a way for controlling "active" 3D glasses worn by viewers using an infrared signal sent by a TV set.

The CEA published the 3D closed-captioning standard June 14. Access to the full document costs $42.75 for CEA members and $57 for nonmembers.

The active 3D glasses specification was published May 11 and is $66 for CEA members and $88 for nonmembers.

CEA also Monday announced three other standards -- CEA-2042.1-A, Wireless Power Glossary of Terms; CEA-805-D-1, Data
Services on the Component Video Interfaces; and ANSI/CEA-2041, Standard
for a Round Tactile Indicator -- as well as a technical report that details results of a comprehensive study of ambient light levels in typical television viewing locations.

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