Intellectual Property India Publishes Patent Application for Arithmetic Encoders, Arithmetic Decoders, Video Encoder, Video Decoder, Methods For Encoding, Methods For Decoding And Computer Program

MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202647124326 A) filed by Fraunhofer-Gesellschaft Zur Frderung Der on October 16, 2026, for Arithmetic Encoders, Arithmetic Decoders, Video Encoder, Video Decoder, Methods For Encoding, Methods For Decoding And Computer Program.

Inventors include Haase, Paul; Kirchhoffer, Heiner; Pfaff, Jonathan; Schwarz, Heiko; Marpe, Detlev; and Wiegand, Thomas.

The application for the patent was published on October 30, 2026, under issue no. 44/2026.

Abstract: Embodiments provide an arithmetic encoder for encoding a plurality of symbols having symbol values, wherein the arithmetic encoder is configured to determine one or more state variable values, which represent statistics of a plurality of previously encoded symbol values, and wherein the arithmetic encoder is configured to derive an interval size information for an arithmetic encoding of one or more symbol values to be encoded on the basis of one or more state variable values which represent statistics of a plurality of previously encoded symbol values. Furthermore, the arithmetic encoder is configured to selectively increase an adaptation speed of one or more of the state variable values for a predetermined number of bins following an initialization of the one or more state variable values; and/or to selectively reduce an adaptation speed of one or more of the state variable values when a predetermined number of bins following an initialization of one or more state variable values has passed; and/or to use a first, comparatively higher adaptation speed for adapting one or more of the state variable values to a probability of encoded symbol values for a first group of bins following an initialization of the one or more state variable values, and to use a second, comparatively lower adaptation speed for adapting one or more of the state variable values to a probability of encoded symbol values for a second group of bins following the first group of bins. Further arithmetic encoders, arithmetic decoders, video encoders, video decoder, methods for encoding, methods for decoding and computer programs are also disclosed which are based on the same concept and on other concepts.

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