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 the ATSC (Advanced Television Systems Committee). This new environment provides for larger screens, higher screen resolutions, enhanced closed captions, and higher transmission data rates for closed-captioning. The DTVCC specification is defined in the Electronic Industries Association publication EIA-708.

This web site contains the work of the DTVCC Working Group and is not intended for use by all entities interested in DTV Closed Captioning. The DTVCC Working Group is an ad hoc alliance created by the Television Data Services Subcommittee (R4.3) of the Electronic Industries Association to define the concepts, standards, and recommended practices for DTV Closed Captions.

Teleconference & Meeting Schedules - Click here to view any scheduled teleconferences or meetings.

DTVCC Standard Specification Document (Proposed EIA-708 DRAFT) - Click here to download the most recent DRAFT version of the Electronic Industries Association proposed standard - EIA-708.

DTVCC Frequently Asked Questions (FAQs) - Click here to access Frequently Asked Questions regarding EIA-708, and DTVCC Encode and Decoder (Receiver) implementations.

DTVCC Simulator Project - Click here to get the latest updates on the MS-Windows DTVCC Simulator Project.

DTVCC Working Group Member Directory - Click here to view names, addresses, telephone numbers, and email addresses of contributors to the DTVCC Working Group.

Other Working Documents - Click here to download ongoing Working Group documents.

Technical Information - Click here to access related technical information.

Gary Robson: Digital Television (DTV) Captioning

Gary Robson is the author of Inside Captioning and is the current chairperson of the DTVCC Working Group (EIA R4.3, WG1). Mr. Robson maintains a web site that includes information on NTSC captioning and DTV captioning (CapFAQ: Digital television (DTV) captioning).

National Center for Accessible Media (NCAM) - DTV Access Project

Funded by the National Institute on Disability and Rehabilitation Research (NIDRR) of the United States Department of Education, the DTV Access Project will develop open technical standards and create test materials to support the delivery of Closed Captioning and Video Description.

Electronic Industries Association (EIA)

Consumer Electronics Manufacturers Association (CEMA)

Advanced Television Systems Committee (ATSC)

National Association of Broadcasters (NAB)

Society of Motion Picture and Television Engineers (SMPTE)

Institute of Electrical and Electronics Engineers (IEEE)

ISO International Standards Organization

Broadcast Television and Motion Picture Related Sites