Triveni Digital, Harmonic to show ATSC solution at NAB

Triveni Digital , a subsidiary of LG Electronics, announced that Harmonic Inc. will display an IP-based ATSC headend solution incorporating Triveni Digital’s GuideBuilder program and system information protocol (PSIP) generation system at Harmonic’s booth (SU9620) during NAB2007, April 16-19 in Las Vegas. GuideBuilder is integrated with Harmonic’s ATSC headend, which includes the DiviCom MV 500 high-definition (HD) MPEG-2 encoder, Electra 5000 standard-definition (SD) MPEG-2 encoder, and ProStream 1000 stream processing platform with DiviTrackIPâ„¢ statistical multiplexing. The solution provides broadcasters with an IP-based infrastructure that supports multiple HD and SD channels in the allocated spectrum.

“We’re pleased to be partnering with Harmonic in showcasing a solution that minimizes the operational cost for our joint customer base by moving from ASI to an IP infrastructure,” said Ralph Bachofen, director of product management and marketing at Triveni Digital. “By moving to an all IP-based infrastructure, the encoders, multiplexer, and PSIP generator no longer need to be physically co-located, improving operators’ flexibility and allowing them to introduce a more reliable and centralized PSIP solution.”

The Triveni Digital GuideBuilder system generates accurate PSIP data, which forms the foundation for ATSC digital television transport streams and supports digital cable carriage of over-the-air (OTA) broadcasts. Errors in PSIP data can cause serious problems including DTV tuners not finding a channel, closed captions not appearing, or programs not being listed in electronic program guides (EPGs). GuideBuilder features an intuitive interface for managing program event information and helps to ensure compliance with ATSC guidelines and FCC mandates.

Harmonic’s ATSC headend solution is based on the DiviCom MPEG-2 compression solutions, which provide one SD and two HD channels in the 19.4-Mbps spectrum. The ProStream 1000 can be configured to provide a wide range of stream processing functions—including DiviTrackIP distributed statistical multiplexing, scrambling, bulk descrambling, re-encoding, forward error correction, and single frequency network (SFN) transmission over IP—within an integrated one rack-unit system.


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