A medium transport apparatus includes a medium transport path through which a medium passes, a path state detection section configured to output a detection value corresponding to a state of the medium transport path, a control section configured to compare the detection value output by the path state detection section with a threshold value for the detection value and determine whether an abnormal condition has occurred in the medium transport path, and a storage configured to store history information including the detection value acquired in the past, in which the control section changes the threshold value based on the history information.

An image reading apparatus includes a line image sensor receiving a light reflected from an original illuminated by a light source to generate image data, an original size detector disposed away from an original positioning portion by a predetermined distance in a sub-scanning direction, an original image reading start instructing unit outputting an image reading start instruction for starting an image reading operation when being depressed by a user, and a controller determining a size of the original based on detection results of the line image sensor and the original size detector when the size of the original is not stored in a memory in a case in which the controller receives the image reading start instruction in a state in which it is detected that an angle of a pressure plate is greater than a predetermined angle.

An image forming apparatus includes a document reading unit configured to collectively read a plurality of source documents placed on a document table, a reference document image selector that selects, as a reference document image, an individual image representing the source document located closest to a position corresponding to a far left corner of the document table, a first relative position detector that detects a relative position between the reference document image and each of the individual images other than the reference document image, and a first pair identifier that identifies, as an image pair representing front and back faces of the same source document, a pair of individual images, the respective relative positions of which, from the reference document image in one of the both image data and from the reference document image in the other one of the both image data, are closest to each other.

A method and an apparatus for filtering a wireless signal by parsing a wireless signal transmitted from a surrounding wireless terminal so as to extract channel information of the surrounding wireless terminal in a MAC frame and performing adaptive filtering on the wireless signal.

An image forming apparatus includes a document reading unit configured to collectively read a plurality of source documents placed on a document table, a reference document image selector that selects, as a reference document image, an individual image representing the source document located closest to a position corresponding to a far left corner of the document table, a first relative position detector that detects a relative position between the reference document image and each of the individual images other than the reference document image, and a first pair identifier that identifies, as an image pair representing front and back faces of the same source document, a pair of individual images, the respective relative positions of which, from the reference document image in one of the both image data and from the reference document image in the other one of the both image data, are closest to each other.

An image processing apparatus includes a size acquisition unit and a decision unit. The size acquisition unit acquires first size information indicating a first sheet size of a first sheet surface read by an image reading unit. The decision unit decides second image information indicating a second image size of a second image to be stored of a second sheet surface different from the first sheet surface based on first image information indicating a first image size of a first image to be stored based on the first size information.

In an image reading device, a region securing portion secures six page regions in a storage region of a volatile memory. A first conveyance control portion permits a document sheet conveyance device to convey first three document sheets among a plurality of document sheets in response to securing of the six page regions. A data recording portion stores line image data with specified resolution in the six page regions for each page of the plurality of document sheets. An image processing portion moves the plural pieces of the line image data in sequence from the page regions to a work region, and transfers post-processing data to another device. A second conveyance control portion permits the document sheet conveyance device to convey a fourth document sheet and onward among the plurality of document sheets one at a time in sequence following conveyance of the first three document sheets.

An image forming apparatus includes a document reader that scans a document and outputs an image of the document, a process selector that selects a process to be executed on the image depending on a document scanning region scanned in the document reader, and a controller that performs control to execute the process selected by the process selector on the image.

According to one embodiment, an image processing apparatus has a storage unit and a scanner to read an image from a sheet, generate image data by the reading of the image from the sheet, and store the image data in the storage unit. A control unit combines a reading-direction image indicating a reading direction of the scanner with the generated image data to produce combined image data, and then stores the combined image data in the storage unit, The control unit is configured to set a position where the reading-direction image is arranged in the combined image data and a size of the reading-direction image based on a reading resolution in the reading of the image from the sheet by the scanner and a recording resolution of the image data recorded in the storage unit.

An image captured by a camera can be processed by a scanning application to identify one or more regions within the image that are suitable for scanning. One or more of these regions can be selected for scanning automatically based on user-input such as a fingertip touch to a particular portion of the display screen. Users may also select multiple regions and submit multiple quadrangular regions for scanning to PDF from a single image.