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Old 11th June 2018, 07:41   #1  |  Link
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Google plans to patent compression algorithm already in public domain

arsTechnica: Inventor says Google is patenting work he put in the public domain

Jarek Duda invented a highly speed optimized kind of Arithmetic Coding named Asymmetric numeral systems (ANS).

Google now wants to file patents for using this algorithm specifically in video coding. Even though they promise to "license on permissive royalty-free terms", and claim they don't want to patent the generic algorithm, just the specific use in video codecs, Duda questions their motives and their rights (knowing the algorithm in PD as "prior art" and lacking "invention" for just describing a specific use of a generic algorithm).

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Old 11th June 2018, 10:29   #2  |  Link
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This topic is about a year old, arstechnica is just behind the times

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Old 12th June 2018, 07:44   #3  |  Link
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Yes, it is possible (for Google to patent it).

However, they can sue smb. for infringements only for the "video" part.

Second however: if the examiner at USPTO would consider that inherently the generic algorithm would be practically tailored for video applications he might refuse it for obviousness. For instance, if the algorithm public papers disclose potential uses in video, then it may also be killed with novelty. It would pay for Duda to file a reasoned document before USPTO - I do not know how these things work there but it may be something he can use to draw the attention to his rights before the patent will be issued. If issued, it will then be costly to combat.
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