HDMI Gets Specific on Broadcast 3D

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HDMI Licensing, the entity responsible
for licensing the High-Definition Multimedia
Interface specification, has added mandatory 3D
formats for broadcast content.

HDMI 1.4 was released in June of 2009, and the
group last month said it would make the 3D portion
of the spec publicly available in
order to help broadcasters, cable
networks, transmission-equipment
vendors and others deliver
3D content to new 3DTV sets.
The complete HDMI Specification
Version 1.4a — along with
the 1.4a version of the compliance
test specifi cation — is available
only to licensees.

“We published these latest
enhancements to support the
market need for broadcast 3D
content,” Steve Venuti, president
of HDMI Licensing, said in
a statement.

Version 1.4a adds two mandatory
formats for 3D broadcast content: side-by-side
horizontal and top-and-bottom, which refer to
techniques of delivering left- and right-eye images.
For broadcast content, side-by-side horizontal must
be 1080i at 50 or 59.94/60Hz, and top-and-bottom
must be either 720p at 50 or 59.94/60Hz or 1080p at

HDMI has been licensed to more than 900 consumer-
electronics manufacturers.
The spec was developed by
Hitachi, Panasonic, Philips, Silicon
Image, Sony, Technicolor
(formerly Thomson) and Toshiba.
HDMI Licensing LLC is a
wholly-owned subsidiary of Silicon

The Consumer Electronics
Association recently revised its
definition for the 3DTVs as digital
TVs that support HDMI 1.4
as well as a 3D video source that
uses at least one industry-standard
format aside from anaglyph
(the red-and-blue stereoscopic