Ensemble Designs BrightEye 72 handleiding

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Ensemble Designs

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BrightEye 72 and 72-F - Page 6

3G/HD/SD SDI to HDMI Converter User Guide

BrightEye 72 and 72-F

Closed Caption Decoding

The BrightEye 72/72-F has a caption reader in the video path that decodes caption data. After being

decoded, a character generator system in the BrightEye 72/72-F overlays the captions onto the

video. The video is then sent through the HDMI output to be displayed on screen. This is useful for

compliance monitoring to be sure that all the captions are present in the broadcast signal.

The CEA-608 and CEA-708 standards for closed captions are speciﬁc to NTSC-based television systems.

Accordingly, they are supported for these input signals:

Standard Deﬁnition 525/59.94

High Deﬁnition 1080i/59.94

High Deﬁnition 720p/59.94

Under U.S. federal law, all consumer television receivers above a certain display size sold in the U.S.

must include decoding and display of closed caption data. However, that requirement is only for

over the air (or cable) broadcast signals received through the tuner input. The HDMI input of these

displays is not required to support closed captions. In fact, the HDMI standard provides no support

for captions in closed form. BrightEye 72/72-F is able to deliver open captions to an HDMI display by

rendering them as actual image content with its built-in character generator.

Timecode Reader

The video path includes a timecode reader. BrightEye 72/72-F can

read and display running timecode from either DVITC (Digital Vertical

Interval Time Code) on SD SDI inputs, or ATC (Ancillary Time Code) on

HD SDI inputs.

Timecode display

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