Κι αλλη ψηφιακη συνδεση?

[ΑΝΔΡΕΑΣ Κ.]

Αμαν πια μας εχουν μουρλανει.
Καθε λιγο και καινουργια!Δηλαδη παει η DVI και η HDMI για χαρη του Displayport?

Για δειτε εδω:

http://www.extremetech.com/article2/0,1558,1813963,00.asp

 

[Giovanni Dimitropoulos]

A new unified standard connector for external displays will contain an optional audio component, as well as a capability for protecting content.
The Video Electronics Standards Association (VESA) said Monday that several component and electronics OEMs are in the process of finalizing a standard unified interface for LCD, plasma, CRT and projection displays, called "DisplayPort". The timetable calls for the standard to be submitted during the third quarter, with products likely rolling out in early 2006. ADVERTISEMENT
"DisplayPort" was actually designed to accelerate the adoption of digital interfaces, which are closely tied to what the VESA organization called a shift to higher-definition displays. In addition to the optional audio and content protection mechanisms, DisplayPort connectors will also be slimmer than their DVI or standard VGA cousins, allowing smaller form-factor PCs and other devices to be designed.

Specifics of the DisplayPort initiative have not been decided upon, as the document is not finished, said Bill Lempesis, a spokesman for VESA.

Current digital displays use a connector called the Digital Video Interface (DVI), which preserves the digital output created by a PC or set-top box. Each DVI connector uses a Transition Minimized Differential Signaling (TMDS) scheme to transmit data; a single 10-bit TMDS link operates at up to 165 MHz and offers 1.65 gigabits per second of bandwidth, enough to drive a 1920 x 1280 display at 60 hertz


. "The member companies of VESA have worked exceptionally well together over many years to develop a significant and important set of standards for the industry, and we will approach this new proposal with the same high level of energy and expertise," said Ian Miller, chairman of VESA, in a statement.

Although DisplayPort connectors are being designed with external displays in mind, the DisplayPort protocols will also be used within notebook PCs and other integrated devices, according to VESA.

DisplayPort features a high speed forward channel with a packetized data structure and a bidirectional auxiliary channel, according to Lempesis.

"DisplayPort will adhere to VESA's IP policy," Lempesis added. "It is expected that any necessary IP required to implement DisplayPort will be available to industry under minimal RAND terms to encourage wide adoption and high volume deployment of the interface within industry."

Interestingly, the display industry has already indicated a shift toward a next-generation content-protection interface, HDMI, which also contains an audio component. Reached for followup comment Tuesday, Lempesis seemed to imply that HDMI had already been put on the back burner.

"There are several legacy display interface technologies in the industry that have been developed to address specific requirements," Lempesis said. "The DisplayPort interface provides a broadly deployable display interconnect capable of spanning multiple market segment needs, complementing existing technologies in many cases.

"It is anticipated that the new interface will coexist with existing technologies," he added. "The DisplayPort specification goes beyond current technology capabilities though, and will provide an attractive alternative for PCs, and for CE devices such as TVs that connect with PCs. For example, notebook PCs need a reduced pin count display interface to reduce the size and cost of the internal cable so that additional devices may be incorporated within the notebook lid, such as radios or secondary display screens. The DisplayPort standard addresses this need."

DisplayPort could also indicate an end run around Silicon Image, which owns patents used in HDMI, suggested Jon Peddie, principal analyst with Jon Peddie Research.

DisplayPort is apparently part of a shift toward "trusted" computing, where a trusted OS kernel would transfer trusted data according to certain permissions, displaying it only on certain trusted devices. The content protection system for DisplayPort is being developed by Philips, and leverages many existing content protection components including AES encryption, Lempesis said.

Microsoft's "Longhorn" OS is being designed with a trusted capability, and the company's latest version of Microsoft Office also allows a user to establish permissions for documents. Trusted Platform Modules, the independent chip that serves as the hardware foundation for trust, is already mounted within millions of PCs. So far, ATI, Nvidia and other graphics makers have remained mum about specific plans to provide trusted graphics accelerators that would only display content if approved by the content's author.

Both ATI and Nvidia are involved in the DisplayPort effort, however, along with Dell, Genesis Microchip, Hewlett-Packard, connector maker Molex, Royal Philips Electronics, and Tyco Electronics.

Details of the proposed specification were not available at press time.

Δουλειά δεν είχε ο διάολος............ :roll: