can they do this ? - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 3rd August 2011, 09:23 PM   #11
diyAudio Member
 
sofaspud's Avatar
 
Join Date: Nov 2005
Location: San Antonio
I would venture a no. My understanding is that the circuit is protected, but peripheral things like the PCB and BOM are not. In this case, being from the datasheet the circuit is most likely PD. I may be in error. I'm more certain that a visual rendering, whether executed with paint and canvas or photographic film, is certainly protected.
__________________
It is error only, and not truth, that shrinks from enquiry. - Thomas Paine
  Reply With Quote
Old 3rd August 2011, 10:09 PM   #12
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
BOM, unless made public by the chip maker, would certainly be covered by copyright (under UK law, at least). I think we may be running up against different concepts of copyright in different administrations.
  Reply With Quote
Old 3rd August 2011, 10:16 PM   #13
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
That's not so clear. Ingredient lists from recipes, for example, have been held to not be covered by copyright.
__________________
And while they may not be as strong as apes, don't lock eyes with 'em, don't do it. Puts 'em on edge. They might go into berzerker mode; come at you like a whirling dervish, all fists and elbows.
  Reply With Quote
Old 3rd August 2011, 10:24 PM   #14
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
In the UK the safest assumption is that everything is covered by copyright. However, the gvernment has just announced a relaxation of some of the rules. We will soon be allowed to copy music we have bought from CD to MP3 - people elsewhere are often surprised to learn that this is currently unlawful here. Not enforced of course, that would be impractical.
  Reply With Quote
Old 3rd August 2011, 10:30 PM   #15
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
That's technically unlawful here as well. The burning-CDs-to-hard-drive deal that I do is also unlawful. The RIAA bought and sold one of our political parties, so our laws with respect to digital media are astonishingly comprehensive and harsh.

For the cases where I know the performers, I usually ask permission, and the usual reaction is a look of disbelief that I'd even bother to ask.
__________________
And while they may not be as strong as apes, don't lock eyes with 'em, don't do it. Puts 'em on edge. They might go into berzerker mode; come at you like a whirling dervish, all fists and elbows.
  Reply With Quote
Old 7th August 2011, 07:08 AM   #16
! is offline !  United States
diyAudio Member
 
Join Date: Jun 2005
Location: Midwest
Copyright applies to the picture if the owner does not grant permission to use it. The amp boards themselves differ enough that it's not a 1:1 copy, too much prior art and similarities exist with amp boards to say something roughly the same is an infringement.

BOM, it's not copyrighted unless reproduced exactly in writing layout, parts brands, etc. and presented as a BOM, not just a board built with the same component values in someone else's BOM. General circuits from chip manufacturer datasheets and other datasheet info is definitely not copyrighted, manufacturer expressly gives this info to use their chip (product) for making a for-sale product that implements that chip.

Now having written that, if you have an especially unique functionality from your circuit you can PATENT that subcircuit in the amp, but whether that patent holds up in court is another story when talking about sonic differences or electrical function if other parts of the amp (product) as a whole differs and considering that these basic circuits used have been around for decades, again there's the issue of so much prior art existing.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 03:37 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2