MRV SFPs earn US Patent for HD-SDI video over fiber transport

AUGUST 23, 2010 -- MRV Communications Inc. says that its line of digital video small form-factor pluggable (SFP) interfaces used for transporting serial digital interface (SDI) and high-definition serial digital interface (HD-SDI) video over any fiber-optic network has been granted United States patent No. 7,688,231.

AUGUST 23, 2010 -- MRV Communications Inc. says that its line of digital video small form-factor pluggable (SFP) interfaces used for transporting serial digital interface (SDI) and high-definition serial digital interface (HD-SDI) video over any fiber-optic network has been granted United States patent No. 7,688,231.

MRV used an encoding algorithm based on the EG-34 industry standard in its SFP interfaces. The SFPs enable transmission of digital video SDI or HD-SDI over fiber via standard, off-the-shelf optical transport equipment.

Previously, this type of video data was primarily transmitted on copper coaxial cables, with transmission distances limited to several hundred yards. For longer distances, a dedicated network with separate fiber-optic cables and specialized transmission equipment needed to be built. That’s because the data-scrambling algorithm of SDI and HD-SDI video is incompatible with standard optical systems.

MRV’s digital video SFP enables this data to be transmitted over fiber using standard optical transport equipment, reducing costs and increasing network flexibility.

MRV’s digital-video SFPs are available for the SDI (270 Mbps) standard, and both the PAL/SECAM (1.485 Gbps) and NTSC (1.4835 Gbps) standards of HD-SDI.

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