originality was the 2008 case Meshwerks v. Toyota Motor Sales U.S. In this case, the court ruled that wire-frame computer models of Toyota vehicles were not entitled to additional copyright protection since the purpose of the models was to faithfully represent the original objects without any creative additions. In May 2016, Judge Percy Anderson ruled that remastered versions of musical recordings are eligible to receive a new copyright if they contain "multiple kinds of creative authorship, such as adjustments of equalization, sound editing and channel assignment", that are perceptible from the original work. This applies even if the work was only subject to common law state copyright as a sound recording published prior to 1972, thus making them become eligible for compulsory licenses under federal copyright law. This was overruled in 2018 in a 3–0 ruling by the 9th Circuit Court of Appeals, which held that "A digitally remastered sound recording made as a copy of the original analog sound recording will rarely exhibit the necessary originality to qualify for independent copyright protection." Typefaces and geometry House Report No. 94-1476 states that the design of a typeface cannot be protected under U.S. law. The non-eligibility of "textual matter" was raised in Ets-Hokin v. Skyy Spirits Inc., judging whether photographs of bottles of SKYY vodka were original enough for protection: Mechanically produced works In works produced in a mechanical medium, "there is broad scope for copyright . . . because 'a very modest expression of personality will constitute originality.'" With respect to United States law, Stephen M. McJohn writes: Difficulties arise when attempting to determine the boundary line between mechanical or random processes and instances in which the slight intervention of a human agent results in the production of a copyrightable work. The Congressional Office of Technology Assessment posited that the question is open as to whether computers are unlike other tools of creation in that they are possible of being co-creators. The U.S. Copyright Office has taken the position that "in order to be entitled to copyright registration, a work must be the product of human authorship. Works produced by mechanical processes or random selection without any contribution by a human author are not registrable." The "sweat of the brow" doctrine Some countries grant copyright protection based on how much labour and diligence it took to create a work, rather than or in addition to how original a work is.