Patent ID: 11949834
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 11:
12. A method of controlling an image reading device that includes a plurality of linear image sensors that are arranged so that adjacent image sensors include an overlapping region in which portions of reading regions of the adjacent image sensors overlap in a main scanning direction in which a document is read, the method comprising:
storing image data obtained by the plurality of linear image sensors reading a predetermined line of the document;
determining image data that corresponds to a plurality of overlapping regions with reading out the image data stored in the storing;
synthesizing first image data obtained by a first linear image sensor and second image data obtained by as second liner sensor so as to generate image data of each of the plurality of overlapping regions, the first linear image sensor and the second linear sensor being adjacent in the main scanning direction among the plurality of linear image sensors;
generating image data of the predetermined line of the document based on image data in which image data of the plurality of overlapping regions are excluded from the image data stored in the storing and the image data of each of the plurality of overlapping region generated in the synthesizing; and
controlling so as to repeatedly execute, in a sub-scanning direction of the document, the storing, the determining, the synthesizing, and the generating on the predetermined line of the document.