HDMI Multimedia Interface Frequently Asked Questions and Answers

HDMI, or High Definition Multimedia Interface, is the first and only supported uncompressed, all-digital audio/video interface in the industry. HDMI greatly simplifies cabling by delivering high-definition, all-digital audio and video content in a single cable, providing consumers with the highest quality home theater experience. HDMI supplies any audio/video source to an audio and/or video monitor in a multiplexed cable. The interface.

HDMI supports standard, enhanced or high-definition video and multi-channel digital audio over multiple cables. It transmits all ATSCHDTV scales and supports 8-channel, 192 kHz, uncompressed digital audio and existing compression styles, HDMI 1.3 also adds support for the new lossless digital audio styles DolbyTrueHD and DTS-HDMasterAudio, spare bandwidth for future enhancements and needs.

1, HDMI is the de facto HD and consumer electronics market standard digital interface: has been adopted by more than 500 companies, it is estimated that in 2007 more than 130 million take HDMI devices will be available, in 2010, the installation of HDMI devices will reach 1 billion.

2, the integration of HDMI is the integration of PC and consumer electronic devices interface: HDMI allows the PC to transmit higher media content, including high-definition movies and multi-channel audio styles. HDMI is the only interface that can be connected to HDTV and digital PC monitors to achieve DVI and HDMI scale.

3, the evolving scale of HDMI is always developing changes to meet the needs of the market: equipped with a new version of the HDMI standard products will continue to be fully backward compatible with earlier HDMI products.

A. What are the advantages of using HDMI through existing audio interfaces, analog RCA connectors and digital SPDIF.
High quality: HDMI transmits audio in pure digital form far to the amplifier. Analog audio connections are more likely to be lost due to the connection of audio conditioning equipment and other electronic devices. Compared to SPDIF connections, HDMI has greater bandwidth, allowing it to support the latest loss-free audio formats.
Ease of Use: HDMI integrates video and multi-channel audio in a single cable, eliminating the cost, complexity and confusion of multiple cables used in current A/V systems. HDMI Splitters
High Intelligence: HDMI supports bi-directional communication between audio sources and audio conditioning devices, supporting new features such as auto-configuration and single-touch playback. By using HDMI, the device automatically transmits the most efficient format for the connected A/V receiver, eliminating the need for consumers to scroll through all the audio format options to guess what is the best and most supported format.

Second, how can consumers identify which HDMI products support a particular feature.
The core element for consumers to look out for is that HDMI is always enabling a range of the latest technologies. In most cases, however, the choice of which features to implement in a particular product is left to the discretion of the individual manufacturer. Therefore, manufacturers can use their knowledge of the market to choose the right combination of features for their customer base. So the customer must choose the device with the features they need.

III. What is the difference between the Adopter Agreement and the Test Equipment Manufacturer Agreement, and which one should I sign?
The Adopter Agreement is provided to manufacturers who wish to manufacture and sell HDMI-enabled products, such as DVD players, set-top boxes, televisions, semiconductors, cables and connectors, etc. The Test Equipment Manufacturer Agreement is provided to manufacturers who wish to manufacture and sell test equipment such as oscilloscopes, waveform generators and other measurement tools designed to assist manufacturers in testing their HDMI products using compatibility test specifications to achieve compatibility with HDMI specifications.

IV. What is the expected lifetime of HDMI.
HDMI is an evolving standard that continues to evolve and change to meet the needs of the market. HDMI has excess bandwidth to incorporate new technology enhancements and features for a long time in the near future.

V. What are the advantages of HDMI over existing analog video interfaces such as composite, S-Video and component video.
Quality: HDMI is a digital interface that provides the best video quality because all analog connections require no loss in conversion from analog to digital. This difference is in higher resolutions. Digital video will be sharper than component video, eliminating the softness and trailing found in component video. Tiny, high-contrast details such as text bring out this difference. HDMI Splitters
Ease of use: HDMI integrates video and multi-channel audio in a single cable, eliminating the cost, complexity and confusion of multiple cables used in current A/V systems. This is especially useful when upgrading or adding equipment.
High intelligence: HDMI supports bi-directional communication between video sources and DTVs, enabling new features such as auto-configuration and one-touch playback. By using HDMI, the device automatically transmits the most efficient format for the connected display, eliminating the need for consumers to scroll through all the format options to guess the best viewing format.
High-Definition Content Ready: HDCP-enabled HDMI devices will now and in the future be able to access advanced high-definition content. HD-DVD and Blu-ray have delayed the start of the Image Content Protection mark for today's high-definition movies to help minimize potential problems due to conversion, but the expectation is that this mark will start within a few years, meaning that future high-definition movies will not be available through un protected interface in high definition.