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Ricky
SFN Die Hard
USA
4907 Posts |
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Dave W.
Info Junkie
USA
26022 Posts |
 Posted - 05/27/2005 : 07:39:13 [Permalink]
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quote:
Originally posted by Ricky
Well, I used the first bit in a sort of way you would when doing even or odd parody. I use 7 bits of actual information, the first bit just tells you how you're supposed to decode that information.
Another hour later, and I'm still stumped, even with the spoilers (it doesn't help that each digit is one binary digit, but not one-for-one - seems self-contradictory). Whatever the function is, I'm not seeing enough of a pattern to grasp it. More encoded text might help. Might not.
But, I would like to point out that parity bits are used for error detection, not to change the decoding method. For example, with even parity, the total number of 1 bits between the data bits and parity bit should be even if the symbol was transmitted correctly (so a space with its single 1 bit would get an even-parity bit of 1, whereas an A, with two 1 bits, would get an even-parity bit of 0). |
- Dave W. (Private Msg, EMail)
Evidently, I rock!
Why not question something for a change?
Visit Dave's Psoriasis Info, too. |
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Ricky
SFN Die Hard
USA
4907 Posts |
Posted - 05/27/2005 : 10:33:37 [Permalink]
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I understand that it isn't exacty using it like a parody bit, but sort of like one. That is, when a parody bit is 0 or 1, it tells you whether there is an error or not. When mine is 0 or 1, it tells you whether the following composite numbers represent 0's or 1's. It was more a comparison for lack of better words.
The function can't be one to one, as you have a possibility of 2, 3, 4, 5, 6, 7, 8, and 9 going to 0 and 1. That means that at the very least, 4 of them must go to the same number (either 0 or 1), which of course means it can't be one to one. And in this specific case, when the parody bit is 0, 4, 6, 8, and 9 all go to 0 while 2, 3, 5, and 7 go to 1.
Hindsight, I should have left that off. I just though using primes and composites to represent 0's and 1's would have been too easy. |
Why continue? Because we must. Because we have the call. Because it is nobler to fight for rationality without winning than to give up in the face of continued defeats. Because whatever true progress humanity makes is through the rationality of the occasional individual and because any one individual we may win for the cause may do more for humanity than a hundred thousand who hug their superstitions to their breast.
- Isaac Asimov |
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Dave W.
Info Junkie
USA
26022 Posts |
Posted - 05/27/2005 : 11:50:48 [Permalink]
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quote:
Originally posted by Ricky
Hindsight, I should have left that off. I just though using primes and composites to represent 0's and 1's would have been too easy.
No, the primes were the problem. I tried odd-vs.-even, high-vs.-low, and a couple other splits of the eight digits in use, but was looking at a possible 2,080 different combinations, all of which needed to be tried three different ways (at least). I could have done some automated testing, but there was little guarantee that it would have helped. Had I thought of primes, I might have realized there were only four single-digit primes, but I didn't stumble across it.
Anyway...
622662 12161040 10551299 320 4360262 10510338 320 272288 10486790 813096 24872 196629 10486278 8390000 6850566 320 20864 1605866 5 527400 11732480 199424 10488960 14024768 2978 163840 1212592 12626456 5 4142 8560 163840 163888 7488 4983680 23568 5 4327984 12755011 2560 20528 176662 10682464 1082736 12747776 3672104 10485760 12603392 5 1051688 1215504 181 1507396 8389034 1507520 2308610 5772805 1221 40 721640 12649283 4216880 10485760 5783592 1593536 1573184 4211112 2560 13893652 7602560 527365 12599339 164354 12193792 188432 5 4480192 405 164225 10488834 55302 164236 12746752 52096 1738944 40 1051522 11468936 5 4358528 3474992 2560 13631529 2124307 22096 5 5 6 2121765 163840 6291462 2560 1313888 1572904 1311128 3205 40 7864325 6332469 40 4358195 1433856 40 1376262 10510336 9994245 1585285 196651 13127680 1051150 1310720 723480 12058626 1704257 1245225 23552 9128 1310770 4206912 163840 5267461 176512 24896 215680 20480 4390980 10485766 11293 5 217634 12603392 1573728 10485760 1310768 12583744 1507354 27152 40 8912949 12588565 5 13389824 9699342 163840 1575424 10485760 10490240 6348933 4393672 10625030 8393072 536896 40 13893696 1335330 1638661 163840 8414312 10486790 20480 8448512 12746944 6377857 12747808 7627776 4214832 13926426 2097173 11010310 20480 196765 10493059 13926426 10498062 2560 4194613 4293005 40 10488856 3304 22192 163840 1312818 12649157 20480 2608 10846258 2285600 4346248 11136 3312640 10485760 12583232 1587728 6318720 5 572288 12091408 163840 6509576 8481280 135221 20480 12654592 12585625 920616 10682368 2785664 68928 2285824 20480 1330176 1583648 12583976 10488928 101381 1574208 3411200 6295685 1310720 3072 445440 1310720 4194421 10682458 213509 163840 4391208 1003520 172038 265253 11136 1310720 46 12682245 1311632 4200325 10492932 12748288 10487088 7602182 68294 10486576 10485760 196929 3394 12585664 451776 13959232 163840 4138 1336064 679976 11026438 164228 10584112 426 34112 176130 20480 12595200 66088 536622 4392488 5 688166 10510528 166912 5701643 3509248 10485760 24812 10497224 134466 5 134186 2110832 20480 811021 4194357 1507456 10616880 163840 9371653 4227317 5508100 8391721 1310720 7868736 10577920 1310770 2122050 11010432 13389840 1507330 4199989 151938 198725 5 189696 625222 320 164126 12616019 196780 13893889 40 1736832 12583232 24915 648000 20480 284678 10758 688326 12616709 426115 320 12582938 8390197 10485760 2566 69958 1573061 166995 2261392 320 1335360 25132 20486 6294400 12618266 10485760 2910848 164912 92672 13893648 12587304 163840 1265666 6316352 1077 2560 1640005 20529 1575432 166912 1330177 2228550 20888 35997 1607490 1575424 3418 2560 8388934 13240832 189152 3425840 691392 370 320 655728 6294102 1310720 4523 527232 8560 1265664 10485760 286757 10487680 20486 1466880 12585504 6292520 2560 26436 14000136 12648709 320 7872517 12603416 13127936 12648744 26280 12059648 163840 9707912 98630 14896 12583236 10502150 1638405 22598 524485 1335812 265107 166912 131398 164144 1575440 12616004 787280 |
- Dave W. (Private Msg, EMail)
Evidently, I rock!
Why not question something for a change?
Visit Dave's Psoriasis Info, too. |
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Maverick
Skeptic Friend
Sweden
385 Posts |
Posted - 05/28/2005 : 00:13:18 [Permalink]
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Regarding the Voyagers, I can't believe why anyone would get the idea to cut the funding so early. What was it, $4 million per year? NASA is supposed to return to the moon and go on to Mars and beyond and I'm all for that, but not at the expense of other projects. I see the defense budget for 2006 was approved, and it's almost half a trillion dollars. Fantastic. The space budget barely reaches above $17 billion if I remember correctly. I'm not just going after USA here, I think the entire world could survive perfectly fine without massive amounts of weapons, huge armies and ICBM's aimed at ourselves.
NASA and other space agencies such as ESA are too underfunded and almost crushed under their own bureaucracies. How are they supposed to get anything done that way? Maybe they should go and look back at the 60's and see what made them so successful. |
"Life is but a momentary glimpse of the wonder of this astonishing universe, and it is sad to see so many dreaming it away on spiritual fantasy." -- Carl Sagan |
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Ricky
SFN Die Hard
USA
4907 Posts |
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Dave W.
Info Junkie
USA
26022 Posts |
Posted - 05/28/2005 : 10:53:59 [Permalink]
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quote:
Originally posted by Ricky
(which was arbitrarily chosen, of course)
Yeah, its coincidence with the start of chat was pure luck, I'm sure.
Don't forget your homework. |
- Dave W. (Private Msg, EMail)
Evidently, I rock!
Why not question something for a change?
Visit Dave's Psoriasis Info, too. |
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Ricky
SFN Die Hard
USA
4907 Posts |
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Ricky
SFN Die Hard
USA
4907 Posts |
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Dave W.
Info Junkie
USA
26022 Posts |
Posted - 05/30/2005 : 14:40:39 [Permalink]
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| Crap, Ricky. Nevermind any of it. You just made me realize that all those numbers are off by one bit. And the code I used to create the thing is at work, so I can't post the correct stuff until tomorrow morning, earliest. Sorry. |
- Dave W. (Private Msg, EMail)
Evidently, I rock!
Why not question something for a change?
Visit Dave's Psoriasis Info, too. |
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Ricky
SFN Die Hard
USA
4907 Posts |
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Dave W.
Info Junkie
USA
26022 Posts |
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dv82matt
SFN Regular
760 Posts |
Posted - 05/30/2005 : 16:34:08 [Permalink]
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Use this page to convert from binary ascii code to regular text. For Dave and Ricky's first few messages all that you have to do is copy and paste the code into the binary box and hit decode.
4F662063 6F757365 20697420 676F6573 20776974 686F7574 20736179 696E6720 74686174 20446176 6520616E 64205269 636B7920 776F756C 64207461 6B652061 20636F64 65207468 61742069 73206465 7369676E 65642074 6F206265 20612073 696D706C 6520616E 64207374 72616967 6874666F 72776172 64206D65 616E7320 6F662063 6F6E7665 7274696E 67207374 616E6461 72642069 6E666F72 6D617469 6F6E2069 6E746F20 6120666F 726D2074 68617420 69732075 7361626C 65206279 20636F6D 70757465 72732028 616E6420 76696365 20766572 73612920 696E746F 20612063 6F6D7065 74697469 6F6E2074 6F207365 65207768 6F20636F 756C6420 6D6F7374 20656666 65637469 766C7920 73656E64 20696E66 6F726D61 74696F6E 20776974 686F7574 20746865 2073696C 6C792073 69646520 65666665 6374206F 66206163 7475616C 6C792062 65696E67 20756E64 65727374 6F6F642E 00
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Dave W.
Info Junkie
USA
26022 Posts |
Posted - 05/30/2005 : 17:50:00 [Permalink]
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dv82matt:120F1B0C 191F0718 01010419 0A030110
1B0E0411 0707071F 190C0105 031C0104
01051004 140C0909 1504140C 12100410
1616100E 01040316 04180E01 1C180909
15041310 0C060B04 1C061210 0A140103
03121B07 11041F19 1009091B 06041F03
16040E03 1C0A1410 1B160404 1F190518
01041E0C 06120403 1604060C 060E0307
0D03030D 04140118 0A011404 0D031401
0C060B04 130C0618 0A150419 0C010503
1C01040C 06011006 120C060B 04010510
0401050A 10181204 01030413 100E0307
10041804 1B111F05 181B1604 1F141010
040C1604 15031C04 0E180604 12100E03
12100401 050C1404 06030614 10061410
1B161104 1F14030A 01040316 040E0307
0D10010C 010C0306 1B13041F 0316040E
031C0A14 101B0604 1F0C0407 1C140104
0D030C06 0104031C 01040105 1801040A
0C0E1E15 04140118 0A011012 040C011B
07041F0C 04071815 0405180F 10041310
10060418 04140718 0A011B18 1F181414
1B06041F 131C0104 0A0C0E1E 15040D03
14011012 04010510 04160C0A 14010410
060E0312 10120407 10141418 0B101B07 And double- to you, buddy. |
- Dave W. (Private Msg, EMail)
Evidently, I rock!
Why not question something for a change?
Visit Dave's Psoriasis Info, too. |
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Ricky
SFN Die Hard
USA
4907 Posts |
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Topic Locked
