US Patent Issued to SIGMASTAR TECHNOLOGY on Jan. 13 for "Image compression device and image compression method" (Chinese Inventor)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,418, issued on Jan. 13, was assigned to SIGMASTAR TECHNOLOGY LTD. (Fujian, China).

"Image compression device and image compression method" was invented by Jing-Ru Qin (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image compression device includes a discrete cosine transform (DCT) circuit, a quantization noise shaping (QNS) circuit, and an encoder circuit. The DCT circuit performs a DCT on original image data to generate first data. The QNS circuit performs QNS on block data in first data to determine, based on a first coefficient and a second coefficient of the block data, a QNS score of the first coefficient, and replace the first coe...