Harmonic Debuts HD Encoder

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Harmonic Inc. debuted a new MPEG-2 (Moving Picture Expert Group) HD encoder that handles both constant-bit-rate and variable-bit-rate encoding schemes.

Harmonic said the new “MV500” encoder offers a 25% improvement in compression efficiency over older products. It integrates the company’s “DiviTrackIP” distributed statistical-multiplexing system.

The company said cable operators can use the variable-bit-rate compression scheme to squeeze more HD channels into their plant, estimating that an operator could get four HD channels in a single 256-QAM (quadrature amplitude modulation) channel.

Harmonic also debuted the “MV60” encoder for the mobile-video market.

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