Digital Television Closed-Captioning (DTVCC) Home Page
Digital Television Closed Captioning (DTVCC) What is DTVCC Digital Television Closed Captioning (DTVCC) (formerly known as Advanced Television Closed Captioning (ATVCC)) is the migration of the closed-captioning concepts and capabilities developed in the 1970's for NTSC television video signals to the high-definition television environment defined by the ATV Grand Alliance and standardized by ...
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