What is HDMI 4.0? FAQ - High-Def Digest Forums
Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 09-11-2009, 12:23 PM
Senior Member
Thread Starter
 
Join Date: Nov 2006
Posts: 8,420
Default What is HDMI 4.0? FAQ

The HDMI Organization has an excellent Frequently Asked Question page for the specifications and capabilities of the upcoming HDMI 4.0:

http://www.hdmi.org/manufacturer/hdm..._4_faq.aspx#18

Quote:
Originally Posted by hdmi.org

Overview of HDMI 1.4

• What’s new in the HDMI 1.4 specification?
• When should we expect to see products with some of these new features?
• Are manufacturers required to implement all of the new HDMI 1.4 features?
• How will I know which HDMI 1.4 features are implemented in a device?
• Will any of the HDMI 1.4 features require a new cable?
• Are HDMI 1.4 based devices going to be backwards-compatible with older HDMI (v.1.0 - 1.3) devices?
• Can older HDMI (v.1.0 - 1.3) devices be software-upgraded to take advantage of the new features introduced in HDMI 1.4?
Quote:
What’s new in the HDMI 1.4 specification?

• HDMI Ethernet Channel

The HDMI 1.4 specification adds a data channel to the HDMI connection, enabling high-speed, bi-directional communication. Connected devices that include this feature can send and receive data via 100 Mb/sec Ethernet, making them instantly ready for any IP-based application. The HDMI Ethernet Channel allows internet-enabled HDMI devices to share an internet connection via the HDMI link, with no need for a separate Ethernet cable. It also provides the connection platform that will allow HDMI-enabled components to share content between devices.

• 3D Over HDMI

The 1.4 version of the specification defines common 3D formats and resolutions for HDMI-enabled devices, enabling 3D gaming and other 3D video applications. The specification standardizes the input/output portion of the home 3D system, facilitating 3D resolutions up to dual-stream 1080p.

• 4K x 2K Resolution Support

The new specification enables HDMI devices to support extremely high HD resolutions, effectively four times the resolution of a 1080p device. Support for 4K x 2K allows the HDMI interface to transmit digital content at the same resolution as the state-of-the-art Digital Cinema systems used in many movie theaters.

• Expanded Support For Color Spaces

HDMI now supports color spaces designed specifically for digital still cameras, enabling more accurate color rendering when viewing digital photos. By supporting sYCC601, Adobe®RGB, and Adobe®YCC601, HDMI display devices are capable of displaying more accurate, life-like colors when connected to a digital camera.

• HDMI Micro Connector (Type D)

The HDMI Micro Connector is a significantly smaller 19-pin HDMI connector supporting up to 1080p resolutions for portable devices such as cell phones, portable media players, and digital cameras. This new connector is approximately 50% smaller than the size of the existing HDMI Mini connector.

• Automotive Connection System (Type E)

The Automotive Connection System is a cabling specification designed to be used for in-vehicle HD content distribution. The HDMI 1.4 specification provides a solution designed to meet the rigors and environmental issues commonly found in automobiles, such as heat, vibration and noise. Using the Automotive Connection System, car manufacturers now have a viable solution for HD distribution within a vehicle.
Quote:
When should we expect to see products with some of these new features?

While the HDMI Licensing authority has no special insight into manufacturers’ product plans, prior experience tells us that when a new version of the specification is released, products featuring the new capabilities typically start to reach the market within six to nine months. A number of products featuring HDMI 1.4 functionality are likely to be introduced at the 2010 Consumer Electronics Show in Las Vegas.
Quote:
Are manufacturers required to implement all of the new HDMI 1.4 features?

No. HDMI technology is designed to enable a wide variety of manufacturers in different markets to implement the feature sets that work best for their customers.
Quote:
How will I know which HDMI 1.4 features are implemented in a device?

Shop for the specific features that interest you, rather than shopping for an HDMI version number and assuming that a certain feature is supported. Since many of the capabilities detailed in the HDMI 1.4 specification are optional implementations, it’s the responsibility of the manufacturer to tell you what features are supported in any given device.
Quote:
Will any of the new HDMI 1.4 features require a new cable?

The HDMI Ethernet Channel feature will require a new cable that supports this functionality, either a Standard HDMI Cable with Ethernet or a High Speed HDMI Cable with Ethernet, depending on the maximum resolution to be supported. The Automotive Connection System will also employ a new class of cable, the Standard Automotive HDMI cable, which is designed specifically for automotive use. All of the other new HDMI 1.4 features will be compatible with the existing categories of cables.
Quote:
Are HDMI 1.4 devices going to be backwards-compatible with older HDMI (v.1.0 - 1.3) devices?

Yes, devices built to the HDMI 1.4 specification will be fully backwards-compatible with existing HDMI devices and their features.
Quote:
Can older HDMI (v.1.0 - 1.3) devices be firmware-upgraded to take advantage of the new features introduced in HDMI 1.4?

Probably not. Most of the new features introduced in HDMI 1.4 will require a new HDMI chip to enable, and cannot be upgraded via firmware.
In addition to the HDMI 4.0 Overview, HDMI.org also provides deeper insight into the specifications and functionality of:

• HDMI Ethernet Channel
• Audio Return Channel
• 3D over HDMI
• Support for 4K x 2K
• Support for sYCC601, Adobe®RGB, and Adobe®YCC601
• Micro Connector
• Automotive Connection System
• Cables

- Credit to High Def Digest member Lee Stewart for directing us to this source of information.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
HDMI 1.4 FAQ's Lee Stewart Home Theater Gear 3 07-31-2009 07:46 PM
High-Def FAQ: Is HDMI 1.3 Really Necessary? jed General Discussion: Both Formats 83 11-20-2007 09:28 AM
We have a FAQ! jed High-Def Digest News and Announcements 1 11-13-2006 03:26 PM
Ps3 Faq illegalprelude High-Def Disc FAQs 4 11-13-2006 02:30 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off