Canon Kabushiki Kaisha

Alps Alpine Co., Ltd.

Ryo Maeda

Daiji Kirihata

Wataru Kimura

Ikuyasu Miyako

Satoru Matsumoto

Yasuhiro Kuwabara

A rotation angle detecting method includes measuring a current flowing through a motor, and obtaining a rotation angle of the motor based on a value of the measured current. The obtaining of the rotation angle of the motor includes obtaining the rotation angle in an inertial rotation of the motor based on a rotational angular velocity of the motor immediately before a first time point, a time period from the first time point to a second time point, and a time period from the second time point to a third time point. The first time point is a time point at which driving of the motor is stopped, the second time point is a time point at which a polarity of the value of the measured current is inverted, and the third time point is a time point at which the value of the measured current becomes zero.

Rotation angle detecting method, recording medium storing rotation angle detecting program, and rotation angle detecting device

A rotation angle detection device includes a current meter that measures a current flowing in a direct current motor; a filter that extracts a ripple component from the current; a ripple detector that detects a ripple from a signal that has passed through the filter; and a rotation angle detector that detects a rotation angle of the direct current motor based on the number of ripples. The rotation angle detector measures an observation period based on consecutive ripples, calculates an estimation period between the consecutive ripples based on the observation period, determines whether the observation period is within a normal range based on the estimation period and the observation period, and in response to determining that the observation period is within the normal range and an immediately-previous observation period is outside the normal range, calculates a number of correction ripples CRN so as to correct the number of the ripples.

Rotation angle detection device and rotation angle detection method

An apparatus comprises a circuitry, a temporary memory and a permanent memory storing necessary information for executing each of a plurality types of processing. The apparatus receives a switching instruction and switches processing executed by the circuitry by varying the necessary information in response to reception of the instruction. The information is read out and loaded into a first region of the temporary memory. If the circuitry is executing at least one of the plurality types of processing when the instruction is made, the apparatus switches the circuitry to a state of being capable of executing the processing by reading out the information of the processing, loading the information into a second region of the temporary memory, and moving or copying the information related to the processing from the second region to the first region in response to the executing processing ending.

Computing apparatus, image capturing apparatus, control method, and storage medium

An electronic apparatus is capable to set a specific parameter related to exposure, and performs control so that display is performed in a first display mode that displays a live-view image with brightness based on the specific parameter. The electronic apparatus accepts an instruction for moving an execution position of a specific function related to shooting and, in a case where the instruction is received while display is performed in the first display mode, performs control to display a live-view image in a second display mode that displays the live-view image with brightness that is not relevant to the specific parameter.

Electronic apparatus capable of moving execution position of specific function related to shooting, control method therefor, and storage medium

An image capturing apparatus that allows a photographer to easily recognize whether or not a blurring generated in an image at the time of image capturing is due to a spherical aberration variable mechanism is provided. The image capturing apparatus, to/from which a lens barrel can be attached/detached, comprising a mounting unit configured to mount the lens barrel, a processor; and a memory storing a program which, when executed by the processor, causes the image capturing apparatus to obtain an adjustment amount of spherical aberration from the lens barrel mounted on the mounting unit, and control a display device to display information about the adjustment amount together with an image obtained through the lens barrel.

Image capturing apparatus, control method for image capturing apparatus, and storage medium

An image processing apparatus includes a detection unit that executes detection processing for detecting a particular object in an image, a holding unit that holds object information indicating a position and a size of the particular object on the image, a determination unit that determines whether a number of times a particular object is detected in the detection processing on one or more images reaches a predetermined value, a first setting unit that, when the number of times a particular object is detected in the detection processing on the one or more images is determined to reach the value, sets estimation areas on an image based on the object information obtained by the detection processing on the one or more images, and an estimation unit that executes estimation processing for estimating a number of the particular objects in the estimation areas.

Image processing apparatus, image processing method, and storage medium

An image capturing apparatus that includes a mounting part capable of attaching/detaching a device capable of holding at least an image captured by the image capturing apparatus and capable of communicating with the mounted device in accordance with a predetermined standard is provided. The apparatus outputs to a device, if the device having a function of executing image analysis processing for image data captured by the image capturing apparatus is mounted in the mounting part, a command complying with the predetermined standard and configured to cause the device to execute the image analysis processing. The apparatus outputs at least two commands associated with each other and configured to cause the device to execute the image analysis processing, wherein each of the at least two commands includes data representing that the at least two commands are associated with each other.

Image capturing apparatus, device, control method, and computer-readable storage medium

A printing apparatus which is capable of easily issuing an instruction to execute a print job in another file stored at the same storage location without the need to perform a complicated registration operation. The printing apparatus executes a job for printing data based on print settings received from a user. The printing apparatus stores print settings of the job and information indicating a storage location of data printed through execution of the job as a history. The printing apparatus display a selection screen in which a user selects data to be printed from data stored at the storage location when reading the print settings stored.

Printing apparatus that executes print job, control method therefor, and storage medium

An image forming apparatus includes an obtaining unit that obtains personal setting information about a user who logs into the image forming apparatus from a server apparatus and a display control unit that controls a display unit to display a customized operation screen customized for the user based on the obtained personal setting information. If the personal setting information has been obtained from the server apparatus within a predetermined time, the customized operation screen is displayed. If the personal setting information has been obtained from the server apparatus after the predetermined time elapses, the customized operation screen is not displayed.

Image forming apparatus capable of customizing operation screen based on personal setting information and method for controlling image forming apparatus

An image-forming apparatus includes a first display control unit configured to control so as to change an authentication state from a not-log-in state to a log-in state when a log-in request is received and if a authentication of a user succeeds and display an operation screen on an operation unit of the image-forming apparatus based on personal setting information associated with user-identification information by which the user is identifiable, and a second display control unit configured to control so as to change the authentication state from the log-in state to the not-log-in state when a log-out request is received and displays a screen which prompts input of user information on the operation unit based on shared setting information that is shared by a plurality of users.

Image-forming apparatus, system, information processing method and storage medium for causing an operation screen to be displayed based on display language information

According to the fact that a user logs out and then logs in again, a selection screen is displayed. Based on the fact that a selection is made through the selection screen to set, as setting information of a job, setting information stored in association with identification information of the user having logged in again, the setting information stored in association with the identification information of the user is set as setting information of the job.

Job processing apparatus, method for controlling job processing apparatus, and storage medium

A document management apparatus which, when an instruction for collective deletion of files and folders is given, is not required to wait until a user terminates manipulation of a file or a folder, thereby making it possible to enhance working efficiency of the system administrator. A file management system manages a plurality of files. A main controller and a user interface receive an instruction for collectively deleting the files managed by the file management system. The file management system deletes the files according to the instruction. When the instruction is received, a CPU controls the file management system such that out of the plurality of files, files being accessed are deleted after files not being accessed are deleted.

Document management apparatus improved in efficiency of deletion of files, method of controlling the same, and storage medium

An image processing apparatus, in which an operator can register a workflow with an easy operation, the usage of a routine task function can thus be facilitated, and the work efficiency of the operator can be improved. A plurality of functions for an image processing are provided with the image processing apparatus capable of executing a process including a combination of the plurality of the functions as a workflow. An operation unit receives an operation by an operator for the image processing apparatus. A storing unit stores the operation, which is received by the operation unit, by the operator as an operation history. An extracting unit extracts operation information for causing the workflow to be executed from the operation history stored in the storing unit. A registering unit registers the operation information extracted by the extracting unit.

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Yokohama, Japan

Ryo Maeda