US Patent Issued to Fraunhofer-Gesellschaft zur Forderung derangewandten Forschung on Jan. 28 for "Dependent quantization" (German Inventors)

ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,754, issued on Jan. 28, was assigned to Fraunhofer-Gesellschaft zur Forderung derangewandten Forschung e.V. (Munich).

"Dependent quantization" was invented by Heiko Schwarz (Berlin), Thomas Wiegand (Berlin), Phan Hoang Tung Nguyen (Berlin) and Detlev Marpe (Berlin).

According to the abstract* released by the U.S. Patent & Trademark Office: "The coding of a media signal is rendered more efficient by describing the media signal using a sequence of samples and sequentially encoding this sequence by selecting, for a current sample, a set of quantization levels out of a plurality of quantization level sets depending on indices encoded into the data stream for previous samples of the s...