公开(公告)号：US12119847B2

公开(公告)日：2024-10-15

申请号：US17971436

申请日：2022-10-21

Applicant: Synaptics Incorporated

Inventor： Vikram Singh Rana

IPC: H03M7/40 ,  H03M7/30

CPC classification number: H03M7/4093 ,  H03M7/3079 ,  H03M7/4006

Abstract: This disclosure provides methods, devices, and systems for data compression and decompression. The present implementations more specifically relate to entropy encoding and decoding techniques for keeping a state variable within upper and lower bounds using a noniterative process. The entropy encoding uses a fixed state threshold to determine a number of bits to remove and removes the bits from a current state prior to encoding a symbol with the current state. The entropy decoding decodes encoded data in a bitstream based on a current state to obtain the symbol and a new state and determines a number of bits to read from the bitstream and to add to the new state to update the current state.