Domain: wirelessdevnet.com
Stories and comments across the archive that link to wirelessdevnet.com.
Comments · 14
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Re:Java CPU/DSP?
Most cellphones coming out now (with the notable exception of smartphones (except for Blackberry)) are Java enabled. If you've purchased a game on your cellphone is it likely written in Java.
Motorola was among the first to adopt Java in all their new phones: http://www.wirelessdevnet.com/columns/oct2000/mobd ev13.html
Since then most other cellphone manufacturers have jumped on the bandwagon: http://news.com.com/2100-1001-268154.html, http://archive.chipcenter.com/knowledge_centers/wi reless/news/showArticle.jhtml?articleID=10800173
As for hardware execution of bytecode, what's happening now is not the original approach that Sun attempted (i.e. integrating a bytecode interpreter right into the CPU). What is happening now is that several vendors are selling "accelerator" chips that sit between the CPU and the SRAM and execute the bytecodes for the CPU. This modular design has made it easier to integrate these accelerators into existing designs. The Nazomi JA108 is one of the more successful models from what I can gather.
You still have to run a virtual machine, however with the accelerator chip actually executing the bytecodes you get vastly improved performance and reduced battery drain.
Some of these accelerators are even finding their way into other technologies as well, not just cell phones: http://www.elecdesign.com/Articles/Index.cfm?AD=1& ArticleID=1916
I could polish up this list a little but Google is your friend too :) -
Everything old is new again.
AirFlash and Viag Interkom did this in 2001
... and Orange UK did it in May. Perhaps the technology is finally Ready for Prime Time? -
Everything old is new again.
AirFlash and Viag Interkom did this in 2001
... and Orange UK did it in May. Perhaps the technology is finally Ready for Prime Time? -
Like a Crystal Apple
Whether Apple innovates in the hardware department is debatable. But they are pretty good fortune tellers. Let me count the tools they brought first to the home PC user.
1. 64 bit computing
2. Bluetooth
3. Firewire
4. 802.11b/g
5. USB
6. DVD/CD Writeable [got tired of linking] . . .
100,000,000. SCSI -
trying to answer: is EMC OpenSource friendly?
Keeping things on topic, anyone know how OSS friendly EMC is?
I did some research about this, and I found an article stating that Compaq, EMC, HP, IBM, Intel and Sun Join Open Source Development Network. But note that this article is dated for the year 2000. Founded by them OSDN site feels VERY good. And we can see it was a really good (bottom) initiative (OSDN even supports slashdot ;).
I tried to answer if after 4 years EMC is still supporting OSDN. Yet I was unable to confirm that.
those are the results of my research in this interestong topic. If you have manage to confirm that EMC still supports OSDN, please let us know!
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The latest iMode phones are outAnd they've got a pretty high-end spec:
http://www.wirelessdevnet.com/news/2003/98/news10
. htmlSo with the removable media, you don't need to upload any of the pics through the phone.
However, a few months ago there was one of these legal advice shows on Japanese telly, with the case of someone reading the mag in the shop and phoning some number from an ad, and the legal opinion of the show was that since the mags are open and readable for free, it was OK. Although the shop keeper can still kick you out for whatever reason, no law has been broken. Therefore, by extension snapping the page is possibly a copyright offense, but between you and the publisher, not the shop. By extension, if you use barcodes from the mag, that should be OK too.
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Re:Wireless and Global Positioning
My phone already does this. I have AT&T's GSM service and I can find stuff reasonably close to where I am. Oh, there's a press release about it. My experience with the location service is pretty favorable, the "find-a-friend" feature is fun to show off too.
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Quick look at Series 60 and Programming for it
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Fact check on bluetooth volumeit terms of volume more bluetooth devices are made each day than 802.11b in a year
"In 2Q02, 802.11b hardware shipments grew 15%, totaling 3.9 million units." 3.9 million x 4 quaters/year = 15.6 million/year if volumes are at least flat for the next three quarters. x 365 = 5.7 billion bluetooth devices produced per year? I read in a magazine recently that the total number of computers ever produced is expected to reach one billion in the next few months.
Poking around the internet, all I see are projections that perhaps bluetooth unit volumes will catch up to 802.11 this year. "It is not fair to run comparisons between Bluetooth and WLAN regarding the number of chips being shipped or expected to be shipped for either technology. Because of its price and the type of products where it is going into, Bluetooth will soon surpass 802.11 chip shipments but dollar volume might still be smaller for some time."
Could you please post a reference for your claim that "more bluetooth devices are made each day than 802.11b in a year" or a retraction? Thanks in advance.
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Re:your cellphone *already* lowjacks you
This is very true, in fact last year I witnessed a motorcycle accident in State College, Pa (location of my Alma Mater, PSU). When I called 911 to tell them of the accident, they did not ask me for my location, rather, she asked my to confirm if I was infact on East College avenue by the OfficeMax and the Supermarket.
Cell phone location is possible without GPS by timing the signal arrival between different towers. This is not nearly effective as GPS, but this time they hit it right on the head. Unfortunately, this non-GPS solution is much more expensive and less accurate than the GPS route, but nonetheless effective in semi-rural areas such as where I was.
Read about this technology here. -
Slight problemI took a look at intel's site about it and the chipset they are building is based on TDMA (time division multiple access) which uses the same algorith as GSM. The only problem is it won't work for a large number of people. TDMA and GSM have a hard capacity limit, which is considerably lower than CDMA. CDMA also has a capacity limit, so another type of technology is needed. Here is a link to an article
What that technology will be is beyond me, but a TDMA based solution isn't going to provide enough bandwidth and capacity to meet the needs of laptop users because they will expect LAN speeds and reliability.
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Article about long distance 802.11b
I have read some articles about using 802.11b over long distances. Perhaps these links might help.
O'Reilly Network: A Wireless Long Shot [May. 03, 2001]
O'Reilly Network: An 802.11 ISP on Maine's Rocky Coast [Oct. 12, 2001] -
Re:Java on a Turing Machine!>Being able to have Java on your cell phone
>actually serves some purpose (as opposed to a
>few other things cell phone makers have come up
>with).
With release like this you can run java on cellphone ? Really ? I thought this has allready be done, atleast in nokia's cellphones. Or what do you think about first nokia waphones (7110) writing "strange" java.net exceptions to its screen in some error situations ? Sounds pretty obvious that Nokia is running java allready even it seems to be out of users reach.Did some search on this topic and Motorola is releasing new cellphones next month that allow users to write java for them. Check out this url for more info. Would be nice but im getting that new communicator when its out
;)
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Re:Bluetooth is overated
Bluetooth specs allow for overlapping piconets, and a member of a piconet (Bluetooth spec's terminology for an ad-hoc Bluetooth network)can also be a member of another piconet. This is called a scatternet and gives you a lot of room to grow. 8 is the maximum number of ACTIVE members in the piconet, some nodes might be parked (up to 255); and it only makes sense that you can have up to 8 active members since the capacity is about 721k anyway.
Please read this good article about Bluetooth to learn more about the technology, I'm sure it will make lots of things clear.
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