 |
 |
|
|
SERVES
-
The DASE standard is not yet complete.
There are only a few prototype receivers available.
INGREDIENTS
-
The ingredients for DASE enhancements will likely be similar to ATVEF, with
more powerful development tools required for more powerful applications.
INSTRUCTIONS
-
The steps for development of DASE content will likely be similar to ATVEF,
with a higher level of expertise and development time for more powerful
applications.
Learn more about DASE:
- www.dase.org
- DVB-MHP
- NIST DASE Development Envrionment
- MHPDev.net MHP news, examples, downloads, forums and links
- ATSC Candidate Standard
(Adobe PDF, part
1,
2,
3,
4,
5,
6,
7,
8)
COMPARISON TO ATVEF
-
This table provide an illustration of the relative features of the SMPTE standardization of ATVEF, DASE and MHP.
| Technology |
SMPTE |
ATSC |
DVB |
| Common Name |
DDE |
DASE |
MHP |
| Markup Essence |
HTML4 |
XHTML |
XHTML |
| Script Essence |
ECMA2 |
ECMA3 |
ECMA3 |
| Host Objects |
|
Navigator, Window, Locator |
Navigator, Window, Locator |
| Procedural Essence Bridge |
|
|
Y |
| Style Sheet Essence |
CSS1 |
CSS2 |
CSS2+ |
| Active Object Essence |
- |
- |
- |
| JVM |
- |
Y |
Y |
| java.* |
- |
Y |
Y |
| com.sun.util.* |
- |
Y |
- |
| javax.tv.* |
- |
Y |
Y |
| javax.media.* |
- |
Y |
Y |
| org.havi.ui.* |
- |
Y |
Y |
| org.davic.* |
- |
Y |
Y |
| org.atsc.* |
- |
Y |
- |
| org.dvb.* |
- |
- |
Y |
| org.w3c.dom.* |
- |
Y |
Y |
| Graphics Essence |
png, jpeg |
png, jpeg |
gif, png, jpeg mpeg-iframe |
| Streaming Video Essence |
analog |
mpeg |
mpeg |
| Streaming Audio Essence |
analog |
ac3 |
mpeg |
| Font Essence |
- |
pfr |
pfr |
| Trigger Essence |
tve-trigger |
(atsc) |
DOM Events |
| Naming Model |
tv:,lid: |
tv:, lid: |
tv:, lid: |
| Display Model |
OSD |
OSD w Alpha |
OSD w Alpha |
| Input Model |
- |
Keyb, RC |
Keyb, RC |
| Transport Assumptions |
IP Multicast |
ATSC A/90 |
MHP OC |
| Return channel |
- |
- |
Y |
Revised Monday, 10-Mar-2003 15:44:33 CST
- j
© 2000 - 2003 Local Enhancement Collaborative &  .
|
|
|
|
|
