US Patent Issued to Comcast Cable Communications on Jan. 13 for "Block vector difference (BVD) coding" (Russian, American Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,447, issued on Jan. 13, was assigned to Comcast Cable Communications LLC (Philadelphia).

"Block vector difference (BVD) coding" was invented by Vasily Alexeevich Rufitskiy (Vladimir, Russia), Alexey Konstantinovich Filippov (Khimki, Russia) and Esmael Hejazi Dinan (McLean, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Encoding and/or decoding a block of a video frame may be based on a previously decoded reference block in the same frame or in a different frame. The reference block may be indicated by a block vector (BV). The BV may be encoded as difference (e.g., block vector difference (BVD)) between a block vector predictor (BVP) and the BV. ...