US 11,678,085 B2
Data compression method, data compression device, solid-state imaging device, data decompression device and electronic system
Francesco Dell' Anna, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Filed by Sony Semiconductor Solutions Corporation, Kanagawa (JP)
Filed on Nov. 9, 2021, as Appl. No. 17/521,899.
Claims priority of application No. 20207799 (EP), filed on Nov. 16, 2020.
Prior Publication US 2022/0159207 A1, May 19, 2022
Int. Cl. H04N 5/378 (2011.01); G06T 9/00 (2006.01)
CPC H04N 5/378 (2013.01) [G06T 9/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A data compression method, the method comprising:
receiving a raw binary number comprising a first predefined number n1 of bits, each bit representing either zero or 2(n−1) with n representing a position of the bit in the binary number and 1≤n≤n1;
identifying, in the raw binary number, a position of a highest-weighted bit unequal zero;
generating, by using a first electronic circuit, binary position information by encoding the identified position;
compiling an encoded binary number, wherein the encoded binary number is based on the binary position information and on a partial binary number being a portion of the raw binary number directly following the highest-weighted bit unequal zero, and wherein the encoded binary number comprises a second predefined number m1 of bits, wherein the second predefined number m1 of bits is smaller than the first predefined number n1 of bits.