wifi mesh using MIMO technology - Wifi Mesh information series

Wavion, a Isreal company, has announed a new acces point claimed to be the first wifi mesh using MIMO technology. The Company had received $22 million funding since 2000 from Sequoia Capital and Elron Electronics Industries.

Wavion is a small company and Cisco, Nortel, Motorola and some smaller WiFi mesh providers such as Tropos Networks, Fretide and Sryix Systems are also provoding WiFi mesh techlogy. It will be a very competive market for all companies.

One of WiFi mesh application is wireless video security monitoring system. I am very interesed in building such a system. One of low cost wifi camera is from D-link systems.

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HDTV price is dropping

According to LCD TV marketer, the price of 42 inches LCD TV will be dropped to below $998 bt the end of 2007. The price for 37 iches will drop to below $648.

If you are interested in find out what is the prices for 42 and 37 inched LCD TV, click the link below from Amazon.com

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Wifi Mesh - Follow up

I am interested in this new company - Meraki. The Company intents to bring the low-cost Internet access to peole aroun the word. You may recall a MIT "Roofnet" project a few years ago. Meraki is an extension to the MIT Roofnet projetc. They currently sells a low cost 802 11g router which uses chip set from Atheros Communications, Inc. This router can be used for building low cost indoor wifi mesh network. I have interest in integrating this wesh network with video camera for home security.

If you are interested in wifi products information, click the link:


wifi product information

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Newest Wifi phone $199

Newest Wifi phone from Belkin $199

Are you looking for newest wifi phone to make calls from your Skype account without a PC? Here is the product information:

Belkin wifi pone

The Belkin wifi phone make Skype(tm) calls from Boingo(R) hot spots network. You can make calls from thousands of Boingo hot spots for only $7.95 per month.

* To call anyone, anywhere without a PC

* Connect to any Wifi hot spots around the world

* To call any Skype account for free

* It is perfect to use at home, office, or at any Boingo hot spot

Boingo, Boingo Wireless, and the Boingo Wireless Logo are registered trademarks of Boingo Wireless, Inc.

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One Stop HD-DVD Blu-Ray source

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Wifi Info

There are so many wifi standrads 11.a, 11.b. 11.g, 11.n and 11.....
Which one is really for you? Click the link: wifi

"Quote" from the link: http://www.pcw.co.uk/personal-computer-world/news/2156459/11n-wifi-two-versions

11n Wifi to have two versions

Mobile phones supporting the emerging 802.11n Wifi standard are to use a cut-down version that avoids the controversial bandwidth-hogging dual channel supported by the current version of the spec.

The link:http://www.abiresearch.com/products/market_research/Next_Generation_Wi-Fi_802.11n

Next Generation Wi-Fi: 802.11nChipsets, Technologies and Market DriversThis study describes the emergence of the next evolution of Wi-Fi technology known as 802.11n. Consumers worldwide have become accustomed to wireless connectivity in their homes, businesses and enterprises due to the pervasiveness of the 802.11g and wireless LAN standards. Now they want to be able to extend the range of wireless connectivity, and increase the performance for such fields as multimedia and video distribution.

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HDTV selection

I am in the HDTV market for a while. But there are so many different technologies to select. Which one is really right for me? I would like to share some of my finding.

plasma tv

Wide screen 50-inch plasma TV from maker such as Toshiba and HP can be purchased for less than $2,000. On acerage, HDTV prices have declined 50% over the past two years.Plasmas are known for having good black levels. However, images can sometimes leave impression if the screen displays the same picture for too long. It is known as "Plasama Burn-In".

LCD TV

LCD screens are also flat-screen TV. It is generally brighter than plasma, making them better for viewing in brighter room. LCD is also comsume less power than plasmas.

DLP TV

DLPs use tiny mirrors to reflect light and produce images, are typically the cheapest of the three types. They have a bulb that may need to be replaced over time. The viewing angle tends to be more limited than LCD and plasma screen.

1080P

Another tip: Consider capabilities you may need in the future, such as 1080p resolution. It is higher quality than the 1080i. But TV does not yet broadcast in the 1080p format yet. Sony PlayStation 3 and XBOX HD-DVD option are capable of displaying the "Progressive (1080p)" higher resolution format.

TV buyers will also want a HDMI connection, preferably more than one, for connecting to other electronics.

Visit http://emodtv.com and click on resource/link for more information of HDTV.

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Mesh Wifi network

Meraki announces an integrated package of software, hardware and management service to enable user to build mesh networks.
Hardware
The Ap ( Access Point ) is called the Meraki Mini , 802.11g/b designed for indoor mesh networking. It used Atheros chip set. For more information about wifi products, click here:Wifi
Meraki Software
The Meraki Manage is a web-hosted service that help you to setup and manage your network. It enables operators to set per-user authentication and pricing.
Price
The price of this solution is less than $100. For more information, vist meraki.net.

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BLu-Ray vs HD DVD

Current DVD uses a read laser which has a wavelength of 650 nm while both HD DVD and Blu-Ray use much shorter wavelengths - 405 nm. Data transfer rate for Blu-Ray are 36Mbps(x1), 72Mbps(x2) and 54Mbps (Video BD-ROM). HD-DVD data rate is 36.5Mbps (x1). Video compression for Blu-Ray and HD-DVD use the same format of MPEG2, MPEG-4 AVC and VC1.

The storage sizes for Blu-Ray are 23.3(1x)/46.6(2x) GB, 25.0/50.0 GB and 27/54 GB while HD-DVD is 15/30GB.

Toshiba HD-XA1 HD-DVD $469

Sony BDP-S1 Blu-ray Disc Player $869

System Requirement

CPU:

Intel Pentium 3.2GHz min.

AMD Anthlon 64 x2 (2.2 GHz)

Memory:

512 MB minimum, 1GB recommended

DVD

Blu-Ray ot HD DVD

Graphics Card:

Nvidia GeForce: 7600 GT

ATI: X1600 series

Video Ram:

256 MB minimum

Display Device:

HDCP (High-Bandwidth Digital Content Protection) compliant display with DVI, HDMI connectors for digital output

Operating System:

Window XP with SP2 installed