View Full Version : Wireless HDMI?


stepmback
05-03-07, 11:06 AM
Is this available now? Anyone used this yet?

http://www.gefen.com/kvm/product.jsp?prod_id=4318

penngray
05-03-07, 01:33 PM
30 feet for $700, yikes!!!! I cant believe what people will spend on this stuff :(

ptsenter
05-03-07, 01:54 PM
I agree it's too expensive yet(hey, I refuse to pay $1000.00 for remote while many don't mind). But for somebody who don't want to cut walls and floors (and it requires some expenses, patient and time anyway) this is maybe the way out. Or for a projector.
10.2 Gbps sustain rate over the air (no hiccups, interference) - this quite an accomplishment. I don't know any other examples of that.

penngray
05-03-07, 02:32 PM
Ignoring cost, it is pretty damn cool!!

stepmback
05-03-07, 03:01 PM
My configuration wouldnt be for a projector it would be for adding component capability currently in my basement to other TVs in the house.

Example, I have a HD DVD and Blue Ray player in basement HT, if I married this device to my curent Geffen switch, I should be able to output any of the devices to the receiving end. A good RF remote and I could control my equipment from any room and watch my HD DVD or Blue Ray on any of HDMI HD TVs. maybe even play my playstation on other TVs.... bluetooth controller actually works well from long distances.

I do agree that the price is too high right now and I would prefer something along the lines of 100 ft without line of sight. But this would be a great piece component to share what you currently have on other TVS.

ptsenter
05-03-07, 05:31 PM
10.2 Gbps sustain rate over the air I have to correct that: for whatever reason I assumed it's HDMI 1.3. They claim only 1.2a compliance, use "visual lossless compression" (I believe it's not true lossless), under Features they claim 1080p support whereas under Specifications only 1080i. Nevertheless, it's impressive product.

cadbury8
05-04-07, 03:30 PM
didnt that just undo all that hdcp was trying to do?

PooperScooper
05-04-07, 04:14 PM
didnt that just undo all that hdcp was trying to do?
No, it shouldn't. It either just sends the encrypted data point to point or encapsulates it. TMDS should compress well because it tries to minimize level transitions (1->0 and 0->1), hence the name Transition Minimized Differential Signaling. The biggest issue it faces it timing. If the data doesn't flow smoothly, just like it does on the wire, things will break.

larry

cadbury8
05-04-07, 06:36 PM
well the other questions i have cannot be answered as it would be stepping on the toes of the rules.
Thanks Larry. :)

HDMI_Org
05-04-07, 07:22 PM
I just want to point out that any wireless solutions are not part of the HDMI standard, but are adapters that convert HDMI into a completely different technology. In fact, the name "Wireless HDMI" is a violation of our trademark, which is why you see these products being called "Wireless for HDMI".

There are a number of wireless A/V solutions coming out, but there is no one standard out there (at least not yet). We still maintain that HDMI gives the best results in terms of:

- Performance: 10.2 Gbps, latest features like Deep Color & xv.Color
- Reliability/Quality of Service: dedicated bandwidth, no interference or drop outs from other devices sharing the link, always 10-9 bit error rate or better
- Zero latency: products that use compression/decompression introduce significant lag, which is generally unacceptable for any gaming applications
- Ease of Use: just plug it in and you're done, no setup or user intervention required
- Cost/Future Proof: uncompressed, so no electronics to perform encoding/decoding, and no decoders to become obsolete in the future

tdavis21484
05-05-07, 02:07 AM
I have to correct that: for whatever reason I assumed it's HDMI 1.3. They claim only 1.2a compliance, use "visual lossless compression" (I believe it's not true lossless), under Features they claim 1080p support whereas under Specifications only 1080i. Nevertheless, it's impressive product.
I've seen it in person - definitely not lossless. It looked like 480p DVD picture, even when their source at CES was a 1080i/p Blu-ray disc.

PooperScooper
05-05-07, 11:36 AM
Oh, so the wireless boxes are not just "pass through"? Bzzzt. No thanks. :)

larry

tdavis21484
05-05-07, 12:17 PM
Oh, so the wireless boxes are not just "pass through"? Bzzzt. No thanks. :)

larry
:) Nope, JPEG 2000 compression. I think it's a 500mbps stream, taken down from the original 5-10 GHz stream...no thanks!

SmasHD
05-08-07, 12:22 PM
I've seen it in person - definitely not lossless. It looked like 480p DVD picture, even when their source at CES was a 1080i/p Blu-ray disc.

It mean it's crap, no? It downgrades the signal to 480p no mather the source?

tdavis21484
05-11-07, 04:23 PM
It mean it's crap, no? It downgrades the signal to 480p no mather the source?
The resolution is the same as the original source, it's just so compressed that detail is lost. Kind of like a low quality, compressed, Satellite transmission is still 1080i, but doesn't look as good as 1080i from HD DVD.