Re: [vcf-midatlantic] Cromemco Dazzler 40th birthday presents...
Yea! Someone looked at the source code! Try the quiz! From: vcf-midatlantic [mailto:vcf-midatlantic-bounces@lists.vintagecomputerfederation.org] On Behalf Of Douglas Crawford via vcf-midatlantic Sent: Saturday, May 14, 2016 11:32 AM To: vcf-midatlantic@lists.vintagecomputerfederation.org Cc: Douglas Crawford Subject: Re: [vcf-midatlantic] Cromemco Dazzler 40th birthday presents... Oh oh, that code used XOR for the cursor! They coulda been sued out of existence! https://generationamigapro.wordpress.com/2016/01/25/the-xor-patent-infringem ent-destroyed-commodore/ On 5/2/2016 10:13 PM, Bill Sudbrink via vcf-midatlantic wrote: Check it out: http://wsudbrink.dyndns.org:8080/dazzler.html More to come. Bill S. _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2016.0.7596 / Virus Database: 4568/12219 - Release Date: 05/13/16
The XOR patent was https://www.google.com/patents/US4197590 Has a priority date of January, 1976, so the Cromeco Dazzler (1976) was released (probably) after the patent's priority date documents were filed. Hence using it as prior art in the commodore case would not have helped, unless there is notarized documentation showing it was working in late 1975... On 5/14/2016 11:31 AM, Douglas Crawford via vcf-midatlantic wrote:
Oh oh, that code used XOR for the cursor! They coulda been sued out of existence! https://generationamigapro.wordpress.com/2016/01/25/the-xor-patent-infringem...
On 5/2/2016 10:13 PM, Bill Sudbrink via vcf-midatlantic wrote:
Check it out:
http://wsudbrink.dyndns.org:8080/dazzler.html
More to come.
Bill S.
-- Jonathan Gevaryahu jgevaryahu@gmail.com jgevaryahu@hotmail.com
participants (3)
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Bill Sudbrink -
Douglas Crawford -
Jonathan Gevaryahu