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Bane
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Registered: Oct 1999
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Has anyone heard any new news on the CF adapter springboard?

Bane is offline Old Post 08-21-2000 04:29 AM
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Taki
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Smile Good news!

TTRMKR is developing a CF adapter that uses FAT file system & has applied for patent. He is thinking about developing a smart media card adapter, too. He doesn't have any time line on his site, though.

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Taki
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Taki is offline Old Post 08-21-2000 02:27 PM
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dkessler
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Angry Patent? Gimme a break

You gotta be kidding - a patent for a Springboard to CF adapter? That's ridiculous! For memory cards all it takes is a PCMCIA to CF adapter with three white wires (modifications to the circuit board). The software to make the PalmOS use a CF card is the hard part, but I would think that since TRG has already done it in the TRG Pro, that would establish "prior art".

I wonder who I have to talk to to file opposition to a patent application?

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dkessler is offline Old Post 08-21-2000 06:18 PM
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Taki
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Arrow NOT SO FAST!

Dave,

I didn't explain it enough, but what TTRMKR is trying to patent includes his software. Also it is not an adapter for PCMCIA card...it's for extra memory. I don't know if his system is identical to TRGPro's, but I doubt it. There's more than one way to skin a cat....

I don't think it's ridiculous to patent his idea. He deserves some credit. Also his intention is not making money. Rather, he is trying to protect interests of many Japanese Visor owners who provided him with capital to develop CF adapter Spring board(supporters of USMB-User-Made SpringBoard). It would be unfair for those people (and TTRMKR) if a big company just copies his product. FYI-I have no personal interest in his invention. I didn't send money

[Edited by Taki on 08-22-2000 at 02:21 AM]

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Taki
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Taki is offline Old Post 08-22-2000 06:45 AM
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Bret Snyder
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Registered: Mar 2000
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I agree with Taki.

(Hope this is not the start of another patent thread)

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Bret Snyder is offline Old Post 08-22-2000 03:35 PM
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Toby
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Re: NOT SO FAST!

quote:
Originally posted by Taki
Dave,

I didn't explain it enough, but what TTRMKR is trying to patent includes his software.



I'm not sure about Japan, but unless the Patent Office has gone off the deep end, the U.S. does not patent software. Software is covered under copyright over here.

quote:
{...}I don't think it's ridiculous to patent his idea. {...}


Neither do I (from a hardware perspective), but there's one thing that he'd need to keep in mind: Is he going to patent a completely original design? Since he basically took a PCMCIA-CF adapter and modified it, he may be getting into a sticky situation with someone _else_'s pre-existing patent. Just a thought...

Toby is offline Old Post 08-22-2000 04:06 PM
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Taki
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Smile

Bret, thanks for your support! I don't want to start the whole "patent" argument, either. I shouldn't have used the p-word. This would be my last post regarding this subject.

Toby, Now I'm not sure "patent" is the right word. It's called "jitsuyou sinan touroku"--if I translate literary, "utility new idea(my dictionary says 'utility model') registration"--I have to do some research on Japanese law to figure out exactly what it is, but it sounds more like cross between patent & copywright protection.

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Taki
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Taki is offline Old Post 08-22-2000 04:28 PM
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Toby
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Taki: Yeah, it does sound like a cross, but it leans more towards what would be comparable to patent over here. Laws are just a bit different obviously. Here, patents are for new ideas or inventions, whereas copyright is more for literary works or recorded formats (books, movies, computer code, etc.).

Toby is offline Old Post 08-22-2000 04:55 PM
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dkessler
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Cool Re: NOT SO FAST!

quote:
Originally posted by Taki
I didn't explain it enough, but what TTRMKR is trying to patent includes his software. Also it is not an adapter for PCMCIA card...it's for extra memory. I don't know if his system is identical to TRGPro's, but I doubt it. There's more than one way to skin a cat....


Taki, thanks for clarifying. I appologize for sounding so irate. That was not my intent (nor was it my intent to re-kindle the great screen protector patent debate as some feared). My concern has to do with my own Springboard to CF adapter design that I'm working on. My design is radically simpler than the one TTRMKR has posted on his web site. In fact, it's simple enough that anyone who can handle a soldering iron could build one in a half hour for under $20. My intention has been to release the hardware design (and basic driver software) into the public domain. But if someone patents the idea first, I can't legally do that and the Visor community loses out.

Since I know nothing about the Japanese patent system, I really can speculate on how that might affect my plans. I guess I'll just have to wait and see how it plays out. Who knows when I'll even find the time to finish this ATA driver, so I guess I may be jumping the gun with my concerns

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dkessler is offline Old Post 08-22-2000 10:02 PM
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Taki
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Talking Thanks

Dave, now I understand where you're coming from. Thanks & good luck on your project!

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Taki is offline Old Post 08-23-2000 03:09 AM
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MPM
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Re: Re: NOT SO FAST!

quote:
...My intention has been to release the hardware design (and basic driver software) into the public domain. But if someone patents the idea first, I can't legally do that and the Visor community loses out.[/B]


Dave,

I'm not so sure that this is true. If you don't sell anything are you violating a patent just by sharing your knowledge? I think the answer is no.

I think this concept is called "fair use". I know this applies to copywrights but I think it also applies to patents: People are allowed to copy copywrighted material or build patented divices for their own personal use, as long as they don't try and sell the copies/devices without paying the copywright/patent holder a royalty of some kind.

But then again, I'm not a lawyer so I could be totally wrong on this.

P.S. When I first saw TTRMKR's web site, I got the impression that he was going to do exactly what you stated you were going to do: release his design, and maybe even his software, into to public domain, or sell it for a nominal fee. But a patent to lock everyone else out from an obvious idea? (Shades of Bill Warman!) What is he doesn't chose to sell the CF adapter in the US? Are we locked out forever?!

MPM is offline Old Post 08-23-2000 08:42 PM
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dkessler
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Re: Re: Re: NOT SO FAST!

quote:
Originally posted by MPM
If you don't sell anything are you violating a patent just by sharing your knowledge? I think the answer is no.


Well, I'm totally clueless about what effect a Japanese patent would have in the US. However, if it were a US patent, it would grant ...

quote:
"the right to exclude others from making, using, offering for sale, or selling" the invention in the United States or "importing" the invention into the United States.


So even if you don't offer the invention fo sale, just making or using it is a violation. And I'm pretty sure that legal precedent holds that encouraging others to violate the patent is in itself illegal. And for what it's worth, I don't have a problem with any of that. I am very much in favor of the protection patents offer for truly original ideas. But from what I've seen, the USPTO is getting pretty bad at differentiating between obvious and original.

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dkessler is offline Old Post 08-23-2000 09:48 PM
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dfinberg
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Registered: Aug 2000
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Discussing how to improve on a patented idea is not a violation of law. In fact, you could even get a
patent on the improvement (which is public record among other things), but wouldn't be able to manufacture it until you reached an agreement with the orginal patent holder.

Of course, if your idea is a huge improvement, the usual
solution is to cross license your patents (if yours does infringe on his).

(On another note, you CAN patent software)

dfinberg is offline Old Post 08-24-2000 12:26 AM
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xoxo
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Correct me if I am wrong but from what I understand, the dragonball EZ CPU uses 24bits external address bus only capable of addressing 16MB of memory. Even CF on springboard wont change that fact. Maybe TTRMKR has also patent his way of multiplexing addresses to increase the the memory to > 16MB (hopefully).

James

xoxo is offline Old Post 08-29-2000 09:30 PM
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dkessler
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You are correct about the 24 bit address bus. However it's not a problem for CF cards since they only have a 10 bit address bus. How do they get 64MB+ on a 10 bit bus? Well, there's actually a "multiplexer" inside the card that makes it look like an IDE disk drive. All data transfer into and out of the card actually happens through a single 16-bit register.

The good news is that makes the addressable size of a CF card virtually unlimited (many gigabytes). The bad news is that it makes the software interface a bit tricky. You can't address the card as linear memory so you have to cache in onboard RAM and patch a whole bunch of system calls to trick the memory manager into looking in the cache.

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dkessler is offline Old Post 08-29-2000 10:02 PM
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xoxo
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thank you for the info. I am interested in reading more about it. I appreciate if you could also give me some pointers/links on how the multiplexing and mapping works (software/hardware).

James

xoxo is offline Old Post 08-29-2000 10:34 PM
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LuckyChuck
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As far as the Japanese patent goes, I'm almost positive that it doesn't cover a similar product in the U.S., unless they've filed for a patent over here as well. I took a business class a couple of years ago and that is what we learned, unless they've changed things in the past couple of years, which I doubt (moving at the speed of government!!!)

LuckyChuck is offline Old Post 08-30-2000 06:38 AM
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dkessler
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quote:
Originally posted by xoxo
thank you for the info. I am interested in reading more about it. I appreciate if you could also give me some pointers/links on how the multiplexing and mapping works (software/hardware).


The best way to get the technical details is to download the CF specification from the Compact Flash Association website. The spec is free, but you'll have to fill out a registration form to download it. The information it contains is highly technical and not that easy to digest, but it does cover everything including the electrical interface, software interface, metaformat, and ATA command set.

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dkessler is offline Old Post 08-30-2000 12:46 PM
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potter
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quote:
Originally posted by xoxo
Correct me if I am wrong but from what I understand, the dragonball EZ CPU uses 24bits external address bus only capable of addressing 16MB of memory.

Yes the Dragonball EZ only has 24 address lines. However it also has 4 chip select lines. The chip select lines work in pairs, CSA & CSB and CSC & CSD, so one can select 8 different address blocks.* Thus with a little decoding one can produce 8 mutually exclusive chip select lines. Two of these are available on the springboard's connector, both 16Meg. Thus, without multiplexing, the springboard has an address space of 32Meg. Typically one uses the first chip select for the ROM or Flash and the second for a memory mapped device.

----------
* The CSC & CSD blocks are limited to 4 Meg. Thus the total external address space of the Dragonball EZ is 16x4 + 4x4 = 80Meg. I do not know how the others blocks are used, or what the rest of the Visors memory map looks like.

potter is offline Old Post 08-30-2000 05:10 PM
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xoxo
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quote:
Originally posted by dkessler

The best way to get the technical details is to download the CF specification from the Compact Flash Association website. The spec is free, but you'll have to fill out a registration form to download it. The information it contains is highly technical and not that easy to digest, but it does cover everything including the electrical interface, software interface, metaformat, and ATA command set.



Thank you for the pointer. I will check it out.

James

xoxo is offline Old Post 08-31-2000 04:30 AM
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