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CE-HTML is a markup language that allows developers to create interactive content for in-vehicle infotainment systems. It's specifically designed to work with the Automotive Grade Linux (AGL) platform.
CE-HTML was developed by the Linux Foundation and the Car Connectivity Consortium. The language is based on HTML5 and provides a set of APIs that allow developers to create interactive content for in-vehicle systems.
CE-HTML is used to create a range of applications, including navigation systems, entertainment systems, and even driver assistance systems. These applications can be accessed through a variety of interfaces, including touchscreens and voice commands.
CE-HTML is designed to provide a consistent and reliable experience for users, regardless of the vehicle or system they're using.
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What is CE-HTML?
CE-HTML is a markup language that allows developers to create interactive and dynamic content for consumer electronics devices.
It's based on HTML and CSS, but with additional tags and attributes that cater to the specific needs of CE devices.
CE-HTML is designed to work with a range of devices, including TVs, set-top boxes, and Blu-ray players.
It's particularly useful for creating user interfaces and interactive content that can be easily accessed and controlled by users.
CE-HTML is also backwards compatible with HTML 4.01 and CSS 1, making it a relatively safe choice for developers.
This compatibility allows developers to create content that can be easily adapted to different devices and platforms.
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Using CE-HTML
Using CE-HTML requires a different approach than traditional HTML. CE-HTML has its own media objects and won't support HTML5-like media solutions.
You'll need to consider the differences between CE-HTML and HTML when creating documents. The basis for a CE-HTML document is XHTML, but there are distinct differences to account for.
To avoid invalid CE-HTML documents, be mindful of common HTML statements that are illegal in CE-HTML. The use of the ampersand (&) character is a common problem, so always write it as & in CE-HTML.
Purpose
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CE-HTML is designed to provide a way to create accessible and standards-based content for mobile devices and other consumer electronics.
It allows developers to write HTML and CSS code that can be rendered on a wide range of devices, from mobile phones to TVs.
CE-HTML is based on the HTML 4.01 standard, which is widely supported by most web browsers and devices.
This means that developers can write code once and have it work on many different platforms, which can save time and effort.
CE-HTML is also designed to be extensible, allowing developers to add new features and functionality as needed.
By using CE-HTML, developers can create content that is both accessible and engaging, which is essential for reaching a wide audience.
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Features
CE-HTML is a powerful technology that allows you to create user interfaces for consumer electronics devices using common web languages. It's based on standards like ECMAScript 262, 3rd edition, XHTML 1.0 transitional/strict, and CSS TV Profile 1.0.
CE-HTML also supports the XMLHttpRequest object and DOM level 2.0, which enables rich and interactive user interfaces. This is made possible by the use of specific extensions for CE devices.
A CE-HTML client typically consists of a web browser adapted for the CE-HTML standard running on a consumer electronics device. This can be used in-home through UPnP or via the Internet.
CE-HTML offers a range of features, including:
- Multi-tap or other CE-specific alpha-numeric input support
- 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
- User interface profiles for usage on CE devices
- Third-party notifications
- A specific new MIME-type for CE-HTML content: "application/ce-html+xml"
Use Cases
CE-HTML is a versatile technology that can be used in various applications. It's perfect for creating interactive and dynamic content on the web.
One of the most significant use cases for CE-HTML is in the automotive industry, where it's used to create in-vehicle infotainment systems. These systems allow drivers to access navigation, entertainment, and other features while on the road.
CE-HTML is also used in medical devices, such as patient monitoring systems. For example, a patient's vital signs can be displayed in real-time using CE-HTML, allowing medical professionals to make informed decisions quickly.
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In addition, CE-HTML is used in industrial automation, where it's used to create operator interfaces for machinery and equipment. This allows operators to monitor and control equipment remotely, improving efficiency and reducing downtime.
CE-HTML's ability to run on a wide range of devices makes it an ideal choice for creating mobile applications. This is particularly useful in industries such as healthcare and logistics, where workers need to access information on the go.
CE-HTML's ability to integrate with other technologies, such as databases and sensors, makes it a powerful tool for creating complex systems. For example, it can be used to create systems that monitor and control industrial processes in real-time.
Two Answers
CE-HTML has its own media objects and won't support HTML5-like media solutions. This means you'll need to adapt your content to CE-HTML's specific requirements.
CE-HTML enabled devices won't play proprietary solutions like Flash. Don't waste your time trying to make it work.
CE-HTML is based on the CEA-2014-B standard, which costs a whopping $450. If you're serious about making money with CE-HTML, it's worth investing in this standard.
The CEA-2014-B standard provides an extensive API that's worth getting familiar with. This will help you create CE-HTML documents that actually work.
As the basis for a CE-HTML document is XHTML, you'll need to be aware of some key differences. For instance, using the ampersand (&) character in HTML is a no-go in CE-HTML. Always write it as & instead.
Sources
- https://en.wikipedia.org/wiki/CE-HTML
- https://stackoverflow.com/questions/10363573/ce-html-development
- https://webmasters.stackexchange.com/questions/28299/what-is-the-html-code-for-ce-mark
- https://build.fhir.org/ig/HL7/CDA-core-2.0/StructureDefinition-CE.html
- https://www.dentsplysirona.com/en-us/academy/local-pages/dental-ce.html
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