imported>Catttte: /* Use */ Webkit -> WebKit

2025-03-06T21:09:25Z

Use: Webkit -> WebKit

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{{Use dmy dates|date=September 2021}}
[[File:Example cehtml site.png|thumb|Example CE-HTML page, with description]]
'''CE-HTML''' is an [[XHTML]]-based standard for designing [[webpage]]s with [[remote desktop|remote]] [[user interfaces]] for [[consumer electronic]] devices on [[Universal Plug and Play]] networks. The standard is intended for defining user interfaces that can gracefully scale on a variety of screen sizes and geometries, including those of [[mobile device]]s to [[High-definition television|high definition]] [[television set]]s.<ref>{{cite web|url=http://www.domoticspoint.com/archive/2006/02/26/ce-html-for-remote-user-interfaces-for-consumer-devices/ |title=CE-HTML for remote user interfaces for consumer devices |publisher=Domoticspoint.com |access-date=19 October 2011 |archive-url=https://web.archive.org/web/20060421013743/http://www.domoticspoint.com/archive/2006/02/26/ce-html-for-remote-user-interfaces-for-consumer-devices/ |archive-date=21 April 2006}}</ref>

CE-HTML is part of the [[Universal Plug and Play#AV standards|CEA-2014]] standard (also referred to as "''Web4CE''" which is short for Web for Consumer Electronics),<ref>{{cite web|url=http://www2007.org/posters/poster1017.pdf |title=Web4CE: Accessing Web-based Applications on Consumer Devices |access-date=19 October 2011}}</ref> defined within the [[Consumer Electronics Association]] (CEA).<ref>{{cite web |url=http://www.ce.org/Standards/browseByCommittee_2757.asp |title=Consumer Electronics Association: CEA-2014 |publisher=Ce.org |access-date=19 October 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110608190846/http://www.ce.org/Standards/browseByCommittee_2757.asp |archive-date=8 June 2011 }}</ref>

==Features==
CE-HTML consists of the following internet languages:
* [[ECMAScript]] 262, 3rd edition<ref>{{cite web|url=http://www.ecma-international.org/publications/standards/Ecma-262.htm |title=Ecmascript 262, 3rd edition |publisher=Ecma-international.org |access-date=19 October 2011}}</ref>
* [[XHTML]] 1.0 transitional/strict<ref>http://www.w3.org/TR/2002/REC-xhtml1-20020801/ XHTML 1.0 transitional/strict</ref>
* [[Cascading Style Sheets|CSS]] TV Profile 1.0<ref>{{cite web|url=http://www.w3.org/TR/2003/CR-css-tv-20030514 |title=CSS TV Profile 1.0 |publisher=W3.org |access-date=19 October 2011}}</ref>
* [[XMLHttpRequest]] object<ref>{{cite web|url=http://www.w3.org/TR/2007/WD-XMLHttpRequest-20070227/ |title=XMLHttpRequest object |publisher=W3.org |access-date=19 October 2011}}</ref>
* [[Document Object Model|DOM]] level 2.0 (Core,<ref>{{cite web|url=http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113 |title=DOM level 2.0 Core |publisher=W3.org |date=20 November 1997 |access-date=19 October 2011}}</ref> Style,<ref>{{cite web|url=http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113 |title=DOM level 2.0 Style |publisher=W3.org |date=13 November 2000 |access-date=19 October 2011}}</ref> Events,<ref>{{cite web|url=http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113 |title=DOM level 2.0 Events |publisher=W3.org |date=13 November 2000 |access-date=19 October 2011}}</ref> HTML<ref>{{cite web|url=http://www.w3.org/TR/2003/REC-DOM-Level-2-HTML-20030109 |title=DOM level 2.0 HTML |publisher=W3.org |date=9 January 2003 |access-date=19 October 2011}}</ref>)
* a number of specific extensions for CE devices.

CE-HTML can both be used in-home through [[UPnP]] as via the Internet. It allows the content creator to use the common and known languages in the [[World Wide Web#Standards|web]] to define a user interface that can be controlled on a CE device. A CE-HTML client typically consists of a [[web browser]] adapted for the CE-HTML standard running on a consumer electronics device.
CE-HTML offers specific extensions for these browsers such as :
* [[Multi-tap]] or other CE-specific alpha-numeric input support, by making use of the [[CSS3]] input-format tag.<ref>{{cite web|url=http://www.w3.org/TR/css3-roadmap/ |title=CSS3 working draft |publisher=W3.org |access-date=19 October 2011}}</ref>
* Media (audio/video) playout through the use of an audio/video scripting object.
* Operation via remote control ([[spatial navigation]]) using the up, down, left, right and OK keys
* Client capability matching – to match the client capabilities to the user interfaces that the server offers. For this purpose, each CE-HTML compliant client is making use of a capability profile. This profile, placed in the user-agent string of the client, lets the server know what part of CE-HTML is supported by the client. The server in turn transmits its capabilities in a so-called "XML UI Listing" so the client can choose between the various CE-HTML user interfaces the server offers.
* User interface profiles for usage on CE devices such as a television. These are predefined capability profiles on which a CE-HTML client can base its capabilities. They define e.g. the fonts supported, screen-size of the device and the media that is supported by the a/v scripting object in the device. All profiles are based on a 10-foot user interface.
* Third-party notifications which allow a client to poll for messages from an external server, and display these to the user regardless of the currently displayed user interface.
* A specific new [[MIME|MIME-type]] for CE-HTML content: "application/ce-html+xml".

Typical CE-HTML code looks like this:<ref>[http://www.ce.org/Standards/CEA-2014-A_Errata_TextOnly.pdf CEA-2014 errata] {{webarchive |url=https://web.archive.org/web/20081209093217/http://www.ce.org/Standards/CEA-2014-A_Errata_TextOnly.pdf |date=9 December 2008 }}</ref>

<syntaxhighlight lang="html">
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"ce-html-1.0-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CE-HTML</title>
</head>
<body onload="document.getElementById('myvid').play(1);">
CE-HTML a/v object:<br/>
<object type="video/mp4" id="myvid" data="myvideo.mp4" width="640" height="480"></object>
</body>
</html>
</syntaxhighlight>

== History ==

CE-HTML was developed within the Consumer Electronics Association R7WG9 working group – consisting of a number of CE-manufacturers – to formulate an answer to the problem of displaying [[HTML]] (web) content on a device that does not possess the characteristics of a typical personal computer.<ref>[https://archive.today/20070613140023/http://www.celinuxforum.org/CelfPubWiki/ELC2007Presentations?action=AttachFile&do=view&target=CEA_2014_Overview.pwz CELF-2007 CEA-2014 standard introduction]</ref>
CE devices have problems displaying regular web pages because these pages make use of:
* small fonts and images, not readable from a distance as when experienced from a TV or set-top box
* only mouse or keyboard based navigation, not navigable using remote control
* no highlight on the navigable elements so a user cannot see the element they navigate
* many non-portable browser specific extensions ([[Document Object Model|DOM]] level 0/legacy DOM)
* no standard audio/video object implementation
* the use of proprietary – not CE-compatible – extensions such as [[Adobe Flash]]

Further difficulties with using a CE device to display web content are caused by the fact that CE devices typically have different capabilities such as different resolutions, remote controls and [[Video codec|audio/video codecs]].

== Use ==

CE-HTML is increasingly used within other standards, such as the [[Open IPTV Forum]],<ref>{{Cite web |url=http://www.oipf.tv/docs/Release2/V2.1/OIPF-T1-R2-Specification-Volume-5-Declarative-Application-Environment-v2_1-2011-06-21.pdf |title=Open IPTV Forum – Declarative Application Environment |access-date=26 January 2012 |archive-url=https://web.archive.org/web/20130114132000/http://www.oipf.tv/docs/Release2/V2.1/OIPF-T1-R2-Specification-Volume-5-Declarative-Application-Environment-v2_1-2011-06-21.pdf |archive-date=14 January 2013 |url-status=dead }}</ref> the [[DLNA|Digital Living Network Alliance]] (as of version 2) and [[HbbTV]].
Some research suggests that CEA-2014 (of which CE-HTML is an important part) will be one of the key technologies in the living room internet experience.<ref>[https://archive.today/20130111075659/http://www.linuxdevices.com/news/NS4534279458.html World Wide Web ensnaring the living room]</ref>
There are currently a number of browser vendors and solution providers that claim to have a CE-HTML capable browser, such as Oregan<ref>{{cite web|url=http://oregan.net/oregan_media_browser.php |title=Oregan media browser information |publisher=Oregan.net |access-date=19 October 2011}}</ref> developed by [[Oregan Networks|Oregan Networks Ltd]] and the Wedison project<ref>http://www.wedison.org {{Webarchive|url=https://web.archive.org/web/20100212195008/http://www.wedison.org/ |date=12 February 2010 }} Wedison project information</ref> which is based on [[WebKit]].

[[Philips]] released the first devices which support the CE-HTML standard<ref>{{cite web |last=Andrews |first=Robert |url=http://www.paidcontent.co.uk/entry/419-philips-demoing-net-tv-when-will-web-tv-work-on-the-sofa/ |title=Philips demoing Net TV |publisher=Paidcontent.co.uk |date=1 September 2008 |access-date=19 October 2011 |archive-url=https://web.archive.org/web/20090601094528/http://www.paidcontent.co.uk/entry/419-philips-demoing-net-tv-when-will-web-tv-work-on-the-sofa |archive-date=1 June 2009 |url-status=dead }}</ref> through the Net TV feature in Europe in April, 2009,<ref>{{cite web|url=https://www.engadget.com/2009/02/20/philips-net-tv-rumored-to-go-live-in-april/ |title=Philips Net TV live in April, 2009 |publisher=Engadget.com |access-date=19 October 2011}}</ref><ref>{{cite web |url=http://www.pocket-lint.co.uk/news/news.phtml/22430/23454/Philips-announces-Net-TV-internet.phtml |title=Philips announces Net TV |publisher=Pocket-lint.co.uk |date=19 February 2009 |access-date=19 October 2011 |archive-date=22 February 2009 |archive-url=https://web.archive.org/web/20090222222557/http://www.pocket-lint.co.uk/news/news.phtml/22430/23454/Philips-announces-Net-TV-internet.phtml |url-status=dead }}</ref> which in 2010<ref>{{cite web |url=http://whathifi.com/News/IFA-2010-Philips-unveils-3D-TVs-partners-with-Sharp-and-Loewe-to-develop-open-internet-TV-platform/ |title=Philips partners with Sharp and Loewe |publisher=Whathifi.com |access-date=19 October 2011 |archive-url=https://web.archive.org/web/20111005162413/http://www.whathifi.com/News/IFA-2010-Philips-unveils-3D-TVs-partners-with-Sharp-and-Loewe-to-develop-open-internet-TV-platform/ |archive-date=5 October 2011 |url-status=dead }}</ref> expanded to include [[Sharp Corporation|Sharp]]<ref>{{cite web|url=http://www.hughsnews.ca/sharp-unveils-aquos-quattron-3d-lcd-hdtvs-009601 |title=Sharp Aquos Net |publisher=Hughsnews.ca |date=2 September 2010 |access-date=19 October 2011}}</ref> and [[Loewe AG|Loewe]]<ref>{{cite web|url=http://www.loewe-int.de/en/loewe-ag/press/press-releases/top-news/newspost/beitrag/das-neue-loewe-medianet.html |title=Loewe Medianet |publisher=Loewe-int.de |access-date=19 October 2011}}</ref> platforms.

[[Smart TV]] (sometimes referred to as ''Connected TV'' or ''Hybrid TV'') devices are also being released by [[Samsung]],<ref>{{cite web|url=http://www.inquisitr.com/2673/samsung-internet-enabled-televisions-this-year/ |title=Samsung Internet-enabled televisions this year |publisher=Inquisitr.com |date=26 August 2008 |access-date=19 October 2011}}</ref> [[Panasonic]]<ref>{{cite web|url=https://www.engadget.com/2008/05/20/panasonic-vieracast-internet-enabled-plasmas-due-this-summer/ |title=Panasonic Vieracast internet enabled plasmas due this summer |publisher=Engadget.com |access-date=19 October 2011}}</ref> and [[Sony]],<ref>{{cite web |url=http://discover.sonystyle.com/internettv/ |title=Sony Google TV |publisher=Discover.sonystyle.com |access-date=19 October 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110710164938/http://discover.sonystyle.com/internettv/ |archive-date=10 July 2011 }}</ref> although these base their work on many other programming languages.<ref>{{cite web|url=http://connectedtv.yahoo.com/developer |title=Samsung Connected TV Yahoo |publisher=Connectedtv.yahoo.com |access-date=19 October 2011}}</ref><ref>{{cite web |url=http://www2.panasonic.com/consumer-electronics/learn/televisions/whats-hot-pz850.jsp |title=Panasonic Vieracast |publisher=.panasonic.com |access-date=19 October 2011 |archive-url=https://web.archive.org/web/20110310142314/http://www2.panasonic.com/consumer-electronics/learn/televisions/whats-hot-pz850.jsp |archive-date=10 March 2011 |url-status=dead }}</ref><ref>[https://archive.today/20120530175317/http://www.linuxdevices.com/news/NS8497272379.html Linux device links TVs to Internet videos]</ref>

== See also ==
*[[List of smart TV platforms and middleware software]]
*[[Hybrid Broadcast Broadband TV|HbbTV (Hybrid Broadcast Broadband TV)]]
*[[10-foot user interface]]
*[[Interactive television]]
*[[Smart TV]]

== References ==
{{reflist}}

{{DEFAULTSORT:Ce-Html}}
[[Category:Internet Standards]]
[[Category:HTML]]

CE-HTML - Revision history

imported>Catttte: /* Use */ Webkit -> WebKit