US 11,706,364 B2
Signal processing device
Toru Aramaki, Tokyo (JP); Masako Asamura, Tokyo (JP); and Miki Sugano, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/791,213
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jan. 8, 2021, PCT No. PCT/JP2021/000512
§ 371(c)(1), (2) Date Jul. 7, 2022,
PCT Pub. No. WO2021/145286, PCT Pub. Date Jul. 22, 2021.
Claims priority of application No. 2020-003749 (JP), filed on Jan. 14, 2020.
Prior Publication US 2023/0037063 A1, Feb. 2, 2023
Int. Cl. H04N 1/387 (2006.01); H04N 1/00 (2006.01)
CPC H04N 1/00816 (2013.01) [H04N 1/00803 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A signal processing device configured to use first characteristic data and second characteristic data, the first characteristic data being detected from a sheet-like detection target by a first detection element, the second characteristic data being detected from the detection target by a second detection element and having (i) a characteristic that is different from a characteristic of the first characteristic data and (ii) a correlation with the first characteristic data, the signal processing device comprising:
an evaluation value generator to generate an evaluation value determining whether an unnecessary portion is present using the correlation of the first characteristic data with the second characteristic data, the unnecessary portion being included in the first characteristic data and being detected by the first detection element; and
a correction amount determiner to determine, using the evaluation value, a correction amount for the first characteristic data to correct the data determined to be the unnecessary portion by the evaluation value generator.