Line 21 Data Services

Metadata

Publisher: CTA
Doc Type: Standard
Abstract: Technical standard and guide for using or providing closed captioning services or other data services embedded in line 21 of the vertical blanking interval of the NTSC video signal.
Publication Date: 2008-04-01
Stabilized Date: 2019-12-01
Link: https://shop.cta.tech/products/cta-608
Keyword(s): Captions, Video

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