Thread Subject: Re: teitac-video 4-A Caption Playback

From: Robinson, Norman B - Washington, DC
Date: Tue, Aug 07 2007 11:00 AM

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Can someone point me to the supporting requirements to create captioning
_in these standard formats_?

1. Does the "Content Format and Authoring Tools 8.1B - Multimedia
(format)" section cover the requirement to actually create captioned
material? (link via URL:
http://teitac.org/wiki/EWG:Draft_July_18#8.1-B_-_Multimedia_.28Format.29
). Does it need to specifically reference the CEA standards?
2. Do portable devices (e.g., portable DVD players, PSPs, etc.) fall
within the "Other digital video sources" category?

I'd like to understand how "pass an open-captioned signal to a video
monitor" really helps us when then self-contained device itself is
capable of captioning but doesn't provide it.

Regards,

Norman B. Robinson
Section 508 Coordinator
IT Governance, US Postal Service
phone: 202.268.8246


-----Original Message-----
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[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Jasionowski,
Tony
Sent: Monday, August 06, 2007 11:53 AM
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Subject: [teitac-video] teitac-video 4-A Caption Playback





To: AV Sub-committee,


Below is my understanding of what we discussed and agreed during
last Wed., Aug. 1, AV sub. com. conference call. Unless some one
disagrees this will be considered as final language:





4-A - Caption Playback


Analog television, digital television and tuners, computer
equipment, and other equipment must provide closed and open captions:

Equipment of this type...

Uses this standard...

To provide these functions...

* Analog television displays that measure 13 inches or more
diagonally
* Computer equipment that includes analog television receiver or
display circuitry

CEA 608

Receive, decode and display caption data, when available, from

* broadcast
* cable
* satellite
* videotape
* IPTV

* Wide-screen (16:9) digital television (DTV) displays measuring
at least 7.8 inches vertically
* DTV sets with conventional (4:3) displays measuring at least 13
inches diagonally
* Stand-alone DTV tuners, whether or not they are marketed with
display screens
* Computer equipment that includes DTV receiver or display
circuitry

CEA 708

Receive, decode and display caption data, when available, from

* broadcast
* cable
* satellite
* videotape
* IPTV

OR

* Decode data, when available, and pass an open-captioned signal
to the DTV display or monitor

* Other digital video source devices

CEA 708 or functional equivalent

* Pass data, when available, to a video display with integrated
caption decoding circuitry

OR

* Decode data, when available, and pass an open-captioned signal
to a video monitor




Tony Jasionowski
AV Sub Committee co-chair
Panasonic Corporation of North America (PNA)

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