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Motorola Mobility combines IRDs, transcoders

Thu, 04/12/2012 - 2:52pm
Brian Santo

Motorola is introducing a family of combo IRD-transcoders designed to accept satellite video encoded in MPEG-4 and immediately transcode that video into MPEG-2, which is still more commonly used than MPEG-4 in many cable systems.

As higher-bandwidth video services such as HD1080i, HD1080p60 and 3-D TV proliferate, studios and programmers continue their shift to MPEG-4-based satellite video distribution, Motorola explained. The benefit to content providers is the freeing up of costly satellite transponder space, making room for new HD channels. The challenge for cable operators is their video infrastructure and home devices are almost exclusively designed to support legacy MPEG-2-formatted video services.

Motorola Mobility’s DSR-6400 family combines traditional IRD functions and transcoding functions into a single 1RU system. The family includes single-, dual-, three- and four-channel configurations; each channel can independently transcode the input MPEG-4 HD video service into simultaneous MPEG-2 SD and HD video outputs.

Once the operation has shifted internally to MPEG-4, the 6400s remain in place, simply passing through MPEG-4 video.

Two members of the 6400 family have additional features. The DSR-6403 and DSR-6304 support a closed-loop statmux capability to maximize transmission bandwidth efficiency.

The DSR-6404 can be provisioned for constant bit rate (CBR) and variable bit rate (VBR) video encoding, allowing for high-quality video statmux in groups with up to four HD channels within a 256-QAM multiplex bit rate of 38.8 Mbps, Motorola said.

The DSR-6400 also utilizes AFD (Active Format Descriptor) to translate input HD services to an appropriate SD service with proper aspect ratio and resolution, ensuring that video is display-ready for screens of any size and format.

Joe Cozzolino, senior vice president and general manager of network infrastructure at Motorola Mobility, said, "The new DSR-6400 family is what content providers are asking for when it comes to improving the economics of video transport and having the flexibility to address the shift to MPEG-4 video services, including IP video, while protecting their installed base of legacy MPEG-2."

The DSR-6400 family of products also includes a variety of interfaces for several configuration options, including radio frequency (RF), Gigabit Ethernet, and Adapter Support Interface (ASI) inputs and outputs. An additional Ethernet port also allows for Web browser monitoring and control.

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