Motorola Broadband Communications Sector has installed 12 channels of PurePixel -equipped high-quality DigiCipher(R) II video compression encoders at the MTV uplink in Happauge, New York.

The DigiCipher II encoding system, which will distribute the MTV suite of digital programming services, accepts full-bandwidth video and audio inputs and provides compression and multiplexing features to form a broadcast multiplex of services.

According to an official release, the new PurePixel technology improves video compression efficiency to allow more programming to be carried on existing satellite transponders. Before adding the two new channels to their existing multiplex, MTV performed extensive tests to ensure that viewers' video quality was being maintained. In a number of instances, the video quality of programs in the new 12-channel lineup actually exceeded that in the former 10-channel suite, says the release.

The Motorola PurePixel processing option adds sophisticated dual-pass compression analysis, temporal and spatial filtering, and new scene detection techniques to the Motorola DigiCipher II MPEG-2 compression process.

This additional processing is tightly coupled with Motorola's Emmy Award-winning statistical multiplexing capabilities to add more services to existing fixed- bandwidth digital transmission paths, and to enhance the video quality of existing program line-ups.

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