US 11,899,934 B2
Compression device, compression and decompression device, and memory system
Youhei Fukazawa, Kawasaki Kanagawa (JP); Sho Kodama, Kawasaki Kanagawa (JP); Keiri Nakanishi, Kawasaki Kanagawa (JP); Kohei Oikawa, Kawasaki Kanagawa (JP); Takashi Miura, Yokohama Kanagawa (JP); Daisuke Yashima, Tokyo (JP); Masato Sumiyoshi, Yokohama Kanagawa (JP); and Zheye Wang, Kawasaki Kanagawa (JP)
Assigned to Kioxia Corporation, Tokyo (JP)
Filed by KIOXIA CORPORATION, Tokyo (JP)
Filed on Mar. 3, 2022, as Appl. No. 17/686,246.
Claims priority of application No. 2021-097195 (JP), filed on Jun. 10, 2021.
Prior Publication US 2022/0398019 A1, Dec. 15, 2022
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0608 (2013.01) [G06F 3/0655 (2013.01); G06F 3/0679 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A compression device comprising:
an analyzer circuit configured to analyze first data that is input thereto, determine an estimated power consumption in compressing and/or decompressing with respect to each of a sequence of the first data, and generate one or more parameter values regarding data compression and/or decompression, the one or more parameter values including a first parameter value, which is a cumulative value of the estimated power consumption in compressing and/or decompressing with respect to the sequence of the first data;
a control circuit configured to generate at least one compression mode information indicating whether or not compression is to be performed, based on the one or more parameter values;
a compressor circuit configured to compress the first data into second data according to the compression mode information; and
a selector circuit configured to output the first data if not compressed or the second data if the first data is compressed, together with the compression mode information.