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HDMI 1. 2a was released on December 14, 2005 and fully specifies Consumer Electronic Control ( CEC ) features, command sets and CEC compliance tests.
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HDMI and 1
In our opinion, DisplayPort 1. 2 is the future interface for PC monitors, along with HDMI 1. 4a for TV connectivity.
While not all standards bodies provide specifications freely available for download, many do, including: ITU, JEDEC, DVI, and HDMI ( through HDMI 1. 3a ).
* Audio Return Channel, a feature of HDMI 1. 4
HDMI 1. 0 – 1. 3c uses EDID structure v1. 3.
Windows 7 Service Pack 1 also resolves a bug related to HDMI audio and another related to printing XPS documents.
The HDMI 1. 3 specification defines bit depths of 30 bits ( 1. 073 billion colors ), 36 bits ( 68. 71 billion colors ), and 48 bits ( 281. 5 trillion colors ).
E-DDC Version 1. 1, approved March 2004, featured support for HDMI and consumer electronics.
Over seven full-range 24-bit / 96 kHz discrete channels are supported ( plus a LFE channel, making it 7. 1 surround ) along with the HDMI interface.
An alternative fee for HDMI manufacturers making less than 10, 000 units per year is an annual fee of $ 5, 000 with a royalty rate of $ 1 per unit.
HDMI devices are manufactured to adhere to various versions of the specification, in which each version is given a number and / or letter, such as 1. 0, 1. 2, or 1. 4b.
Note that with the release of the version 1. 4 cable, the HDMI Licensing LLC group ( which oversees the HDMI standard ) will require that any reference to version numbers be removed from all packaging and advertising for the cable.
Non-cable HDMI products starting on January 1, 2012 will no longer be allowed to reference the HDMI number and will be required to state which features of the HDMI specification the product supports.
HDMI 1. 0 was released December 9, 2002 and is a single-cable digital audio / video connector interface with a maximum TMDS bandwidth of 4. 95 Gbit / s.
HDMI 1. 1 was released on May 20, 2004 and added support for DVD-Audio.
HDMI and .
* As an inherently digital device, the LCD can natively display digital data from a DVI or HDMI connection without requiring conversion to analog, like a CRT would need.
These types of memories are frequently seen in video game consoles, mobile phones, radio-frequency identification ( RFID ) tags, implantable medical devices, high-definition multimedia interfaces ( HDMI ) and in many other consumer and automotive electronics products.
Also, several interfaces are engineered to carry digital video and audio together, including HDMI and DisplayPort.
HDMI is a newer digital audio / video interface developed and promoted by the consumer electronics industry.
DVI and HDMI have the same electrical specifications for their TMDS and VESA / DDC links.
However, HDMI and DVI differ in several key ways.
* HDMI lacks VGA compatibility.
The necessary analog signals are absent from the HDMI connector.
HDMI supports RGB, but also supports YCbCr 4: 4: 4 and YCbCr 4: 2: 2.
* HDMI supports the transport of packets, needed for digital audio, in addition to digital video.
An HDMI source differentiates between a legacy DVI display and an HDMI-capable display by reading the display's EDID block.
To promote interoperability between DVI and HDMI devices, HDMI source components and displays support DVI signalling.
An HDMI display can be driven by a single-link DVI-D source, since HDMI and DVI-D define an overlapping minimum set of supported resolutions and frame buffer formats.
In the reverse scenario, a DVI monitor that lacks optional support for HDCP might be unable to display protected content, even though it is otherwise compatible with the HDMI source.
Features specific to HDMI, such as remote-control, audio transport, xvYCC, and deep-color, are not usable in devices that only support DVI signalling.
However, many devices can output HDMI over a DVI output ( examples: ATI 3000-series and NVIDIA GTX 200-series video cards ), and some multimedia displays accept HDMI ( including audio ) over a DVI input.
* Unified Display Interface ( UDI ) was proposed by Intel to replace both DVI and HDMI, but was deprecated in favor of DisplayPort.
In December 2010, Intel, AMD, and several computer and display manufacturers announced they would stop supporting DVI-I, VGA and LVDS-technologies from 2013 / 2015, and instead speed up adoption of DisplayPort and HDMI.
They also stated: " Legacy interfaces such as VGA, DVI and LVDS have not kept pace, and newer standards such as DisplayPort and HDMI clearly provide the best connectivity options moving forward.
HDMI and was
HDMI was later introduced, and it can carry uncompressed multichannel PCM, lossless compressed multichannel audio, and lossy compressed digital audio.
Transcoding from AAC to Dolby Digital or DTS and multi-channel output via HDMI was not originally necessary for Freeview HD certification.
HDMI 1. 2 was released August 8, 2005 and added support for One Bit Audio, used on Super Audio CDs, at up to 8 channels.
HDMI 1. 3 was released June 22, 2006 and increased the single-link bandwidth to 340 MHz ( 10. 2 Gbit / s ).
HDMI 1. 3a was released on November 10, 2006 and had Cable and Sink modifications for type C, source termination recommendations, and removed undershoot and maximum rise / fall time limits.
HDMI 1. 4 was released on May 28, 2009, and the first HDMI 1. 4 products were available in the second half of 2009.
HDMI 1. 4a was released on March 4, 2010 and adds two additional mandatory 3D formats for broadcast content, which was deferred with HDMI 1. 4 in order to see the direction of the 3D broadcast market.
HDMI 1. 4b was released on October 11, 2011.
All future versions of the HDMI specification will be made by the HDMI Forum that was created on October 25, 2011.
An HDMI or DVI connection was required to watch HD content, which was in 720p resolution.
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