Electronics & Technology
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Copyright and copyleft are two legal concepts that govern the use of creative
works. Here is a brief comparison of the two:
Copyright:
Copyright is a legal right granted to the creator or owner of an original work,
which includes literary, artistic, musical, and other creative works. Copyright
law gives the creator exclusive rights to control the use and distribution of their
work, and prohibits others from using or reproducing it without permission.
The purpose of copyright is to protect the creator's economic interests in their
work by providing them with a legal framework to control how their work is used
and distributed. Copyright lasts for a limited period of time, after which the work
enters the public domain and can be used freely by anyone.
Copyleft:
Copyleft is a legal concept that was developed as an alternative to copyright.
The idea behind copyleft is to use copyright law to encourage the free distribution
and modification of creative works, rather than restricting it.
Copyleft licenses allow anyone to use, distribute, and modify a work, as long
as the resulting work is also made available under the same copyleft license. This
means that anyone who modifies a copyleft work must also make their modifications
available under the same license, allowing the work to be continually shared and
improved upon.
The purpose of copyleft is to promote the free and open sharing of creative works,
and to encourage collaboration and innovation. Copyleft licenses are often used
in the development of open-source software and other creative works that benefit
from community involvement and contribution.
In summary, copyright and copyleft are two legal concepts that govern the use
of creative works. Copyright gives the creator exclusive rights to control the use
and distribution of their work, while copyleft allows anyone to use, distribute,
and modify a work as long as the resulting work is also made available under the
same license.
 This content was generated by primarily
with the assistance of ChatGPT (OpenAI), and/or
Gemini (Google), and/or
Arya (GabAI), and/or Grok
(x.AI), and/or DeepSeek artificial intelligence
(AI) engines. Review was performed to help detect and correct any inaccuracies; however,
you are encouraged to verify the information yourself if it will be used for critical
applications. In all cases, multiple solicitations to the AI engine(s) was(were)
used to assimilate final content. Images and external hyperlinks have also been
added occasionally - especially on extensive treatises. Courts have ruled that AI-generated
content is not subject to copyright restrictions, but since I modify them, everything
here is protected by RF Cafe copyright. Many of the images are likewise generated
and modified. Your use of this data implies an agreement to hold totally harmless
Kirt Blattenberger, RF Cafe, and any and all of its assigns. Thank you. Here is
Gab AI in an iFrame.
AI Technical Trustability Update
While working on an update to my
RF Cafe Espresso Engineering Workbook project to add a couple calculators about
FM sidebands (available soon). The good news is that AI provided excellent VBA code
to generate a set of Bessel function
plots. The bad news is when I asked for a
table
showing at which modulation indices sidebands 0 (carrier) through 5 vanish,
none of the agents got it right. Some were really bad. The AI agents typically explain
their reason and method correctly, then go on to produces bad results. Even after
pointing out errors, subsequent results are still wrong. I do a lot of AI work
and see this often, even with subscribing to professional versions. I ultimately
generated the table myself. There is going to be a lot of inaccurate information
out there based on unverified AI queries, so beware.
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