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Group Finalizes WHDI Spec For Multi-Room HD Streaming

Santa Clara, Calif. – The Wireless Home Digital Interface (WHDI) consortium
finalized its WHDI 1.0 standard for streaming uncompressed 1080p video around
a home.

The 5GHz-band technology will be demonstrated at the group’s Las
Vegas Hilton suite during International CES in January.

wireless technologies

also offer multi-room capability but use compression.

Pre-standard WHDI
technology already appears in a number of products, including Sony’s wireless
Bravia Link,


Wireless HDTV Link, Zinwell and
Gefen wireless dongles, an IDX professional
video camera, and a wireless endoscopy system approved by the Food and Drug
Administration, the group said.

The finalized
standard would ensure interoperability among different-branded devices
that license the technology and bear a WHDI logo. The group, however, said it
cannot guarantee the interoperability of 1.0 devices with products
incorporating pre-standard WHDI technology.

With WHDI 1.0, a set-top box or other video source could transmit
a 1080p/60Hz Deep Color video stream more than 100 feet through walls to multiple
TVs around the house without running cables, the group said. Likewise, because
the technology supports low-power
consumption modes for portable devices, battery-operated laptops and
cellphones could stream 1080p video to a display or receive 1080p video from a
source within the home.

The spec, based on Amimon’s technology, enables uncompressed deep-color
1080p streaming  because its throughput
exceeds 4Gbps in a 40MHz channel, the group said, citing MIMO (multiple input
multiple output) technology and what the group called “a unique video modem
concept that provides more protection to the more important bits and less
protection to the less important bits.”

The group claims up to 13 separate 1080p programs could be
streamed simultaneously in a house if its technology is used, although a WHDI
transmitter would have to be dedicated to each stream, a spokesman said.

WHDI incorporates HDCP Rev. 2.0 copy-protection, which allows for
digital streaming of protected HD content.

WHDI is the only solution that meets consumers’ expectation and
demand for a high-quality multi-room HD wireless solution,” group president
Leslie Chard said. “WHDI further enables two of the strongest trends in the A/V
universe: the proliferation of HD content sources, now including the PC and
mobile devices, and the increasing number of inexpensive, high-quality displays
placed throughout the home.”

WHDI group members are Amimon, Hitachi, LG, Motorola, Samsung,
Sharp and Sony. The group, which licenses and promotes the standard, is a
wholly owned subsidiary of Amimon.