The Architectural Lexicon

A core inquiry under 17 U.S.C. § 107(1) evaluating whether a secondary work alters an original with new expression, meaning, or message, or serves an entirely distinct commercial/functional purpose.

The legal doctrine establishing that copyright protects only the original tangible expression of ideas, leaving the underlying concepts, algorithms, facts, and functional methods free in the public domain.

A copyright principle holding that when an idea can only be expressed in one or a very limited number of ways, the idea and expression merge, denying copyright protection to prevent monopolizing the idea.

French for 'scenes of action that must be done'; a doctrine excluding from copyright protection elements, motifs, or tropes that are standard, stock, or indispensable to a particular genre or technical context.

The legal rule that direct copyright infringement requires an active, volitional act by the defendant causing the copying, insulating automated systems from strict direct liability.

The Ninth Circuit rule holding that linking or embedding external images does not violate the copyright owner's public display right unless the image file is physically hosted on the defendant's server.

Latin for 'the law does not care for trifles'; a defense establishing that copying so trivial, brief, or obscured as to be negligible does not constitute actionable copyright infringement.

The constitutional and statutory principle that copyright protection is reserved exclusively for original intellectual conceptions executed by human natural persons.

The computational phase where massive scraped datasets of text, imagery, or audio are converted into multi-dimensional numerical embeddings and model parameter weights.

A statutory rule barring trademark registration or trade dress protection for any product shape, color, or design feature that is essential to use or affects cost/quality.

The mental association in the minds of the consuming public connecting a descriptive term, color, or product design exclusively with a single commercial source.

The second step of patent subject matter eligibility under 35 U.S.C. § 101, searching for an element or combination of elements that amounts to 'significantly more' than generic computer implementation of an abstract idea.