You've probably seen a coworker or colleague using multiple Lcd monitors at their computer workstation. Research at the University of Utah indicates that the use of multiple monitors can significantly heighten laborer productivity. It has been possible to join multiple monitors if the computer had Dvi or Hdmi outputs, but computers adequate with this functionality are still rare. Currently less than 2 percent of workstations are adequate with more than a particular monitor. There is a need for a simpler solution.
A new Usb-Hdmi adapter module has been introduced in recently that might help. The Grandtec Electronic "Grand Hd Cinema" (Ghd-2000) adapts a Usb port for use as an output for up to 6 monitors (4 for Mac). This is also an easy way to implement an Hdtv adapter for a laptop computer. This module is about the size of an Ac adapter power provide for a laptop computer. What makes this goods different than its competitors is the integrated circuit chips and software drivers, the "Display Link" technology.
Hdmi Tv
Display Link Technology
The requisite chips used are made by a enterprise called DisplayLink (formerly Newnham Technology, website: displaylink.com). The enterprise is headquartered in Palo Alto, California, with Research and goods development in Cambridge, England. DisplayLink is a fabless operation, so the manufacturing of the integrated circuits is probably performed in Taiwan.
DisplayLink technology supports 32-bit color at all resolutions. Whenever native resolution can be detected, DisplayLink will display the native resolution of the screen automatically. The video output format is capable of high definition (720p), and audio functions for a particular channel are also integrated. DisplayLink also provides much of the software for automatically configuring the video adapter and the Usb port.
DisplayLink compresses the video signal for transport over the Usb link to heighten bandwidth. Video signals, especially Hdtv signals, when uncompressed, wish stupendous bandwidth. If the former signal source is encoded video (see Mpeg) then the computer must first decode the signal. Then the DisplayLink software driver must compress the signal using the ownership DisplayLink video compression codec. This is basically transcoding, which is one of the reasons that the computer requirements are significant. The compressed signal is then sent over the Usb link to the adapter.
Once the signal is past the Usb link, the converter uncompresses the signal for broadcast over the Hdmi link. Hdmi is capable of communicating uncompressed Hdtv signals.
There is some misleading data on-line that claims that this goods is Hdcp capable, which implies that the system is surrounded by other things, BluRay Dvd compatible. Currently DisplayLink technology is not Hdcp compliant, since DisplayLink's compression codec cannot manipulate encrypted packages.
Fast spicy images may stress the quality of this technology because of the throughput limitations of Usb 2.0.
Computer Requirements
The minimum computer requirements for this application are an Xp or Vista operating system with a Pentium 4 Cpu or equivalent at 2.4Ghz. Minimum Ram memory requirement is 512 Mb. The converter module relies on the computer Cpu to achieve the video encoding. The goods is Plug and play with included software, and should install quickly.
Power for the converter is supplied from the Usb port, so an Ac power provide is not required.
Video Wall
It is possible to implement a "video wall" with up to 6 displays, but only a particular audio channel can be used. Each screen's picture can be independently rotated in increments of 90 degrees.
The system supports extended desktop video (a particular image split over multiple monitors) or mirror imaging (the same image displayed on multiple monitors). A detach Usb-Hdmi adapter module will be required for each monitor in extended desktop mode.
With multiple Usb-Hdmi adapters, each monitor can show detach programming. The limitation will be the computers quality to encode each channel because of the process is computation intensive.
Many citizen now use their computers to watch television and movies. There is a need to be able to in fact view the computer's signal on a larger Hdtv. The Grandtec Electronic Grand Hd Cinema is well qualified for this purpose. The Grand Hd Cinema currently sells on-line for 0-0.
Grandtec Usb to Hdmi Adapter
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