IMAGE READING APPARATUS

• US 20170155787A1
• Filed: 11/21/2016
• Published: 06/01/2017
• Est. Priority Date: 12/01/2015
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: MIZUDE, Kazuhiro, OGAWA, Kazuma, FUJISAKI, Tatsuya
• Granted Patent: US 10,165,142 B2
• Time in Patent Office: Days
• CPC Class Codes: H04N 1/00708 Size or dimensions
• CPC Class Codes: H04N 1/00816 Determining the reading area, e.g. eliminating reading of margins
• CPC Class Codes: H04N 1/38 Circuits or arrangements for blanking or otherwise eliminating unwanted parts of pictures H04N1/387 takes precedence
• CPC Class Codes: H04N 1/3873 defined only by a limited number of coordinate points or parameters, e.g. corners, centre; for trimming
• CPC Class Codes: H04N 2201/0081 Image reader H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0094 Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception

Abstract

An image reading apparatus including: an original reading unit configured to scan at least one original placed on an original table and read an image of the original; an original size detection unit configured to detect a size of an original to be scanned before the scan; and a control unit configured to determine an area from which an image is to be read by the original reading unit by referring to the original size detected by the original size detection unit, wherein the control unit is capable of initiating a multi-crop process in which the original reading unit scans a plurality of originals placed on the original table in batch as a batch-scan and crops an image of each of the originals, and in case of the batch-scan, the control unit determines the maximum area readable by the original reading unit as a reading-area.

Claims

1. An image reading apparatus comprising:

an original reading unit configured to scan at least one original placed on an original table and read an image of the original;

an original size detection unit configured to detect a size of an original to be scanned before the scan; and

a control unit configured to determine an area from which an image is to be read by the original reading unit by referring to the original size detected by the original size detection unit, wherein

the control unit is capable of initiating a multi-crop process in which the original reading unit scans a plurality of originals placed on the original table in batch as a batch-scan and crops an image of each of the originals, and in case of the batch-scan, the control unit determines the maximum area readable by the original reading unit as a reading-area.

2. The image reading apparatus according to claim 1, wherein the maximum area is larger than a reading-area of a maximum original detectable by the original size detection unit.

3. The image reading apparatus according to claim 1, wherein the control unit determines the maximum area as a reading-area regardless of the detection of the original size detection unit, when initiating the multi-crop process.

4. The image reading apparatus according to claim 1, wherein the control unit determines, as a reading-area by the batch-scan, a reading-area corresponding to an original size at least the next larger size than the original size detected by the original size detection unit, when initiating the multi-crop process.

5. The image reading apparatus according to claim 1, wherein

the original size detection unit detects presence or absence of an original at a plurality of different positions on the original table, and determines which one of predetermined original sizes the original placed on the original table has on the basis of a detection pattern for the presence or absence of the original at each position, and

the control unit initiates the multi-crop process in the case where the detection pattern by the original size detection unit corresponds to none of the predetermined original sizes.