Abstract: A display device includes a display part, a storage stores original image data of an original image, a detector detects a touch operation being performed on a screen of the display part, and outputs touch position information indicating a touch position, and a controller displays a base image by resizing the original image according to a display resolution of the display part on the display part. When the touch operation is detected, the controller determines an enlargement target area that is a part of area on the base image including a position corresponding to the touch position, resizes and cuts an area on the original image to generate a partial enlarged image in which the enlargement target area is enlarged, the area corresponding to the enlarged target area, and display the base image and the partial enlarged image which is displayed over a part of the base image.

Abstract: A projecting device includes a projector configured to project a projection image including a content image onto a projection surface; detectors configured to detect a target position at which the content image is to be projected; an image processor configured to generate the projection image; a driver configured to change an orientation of the projector in order to change a projection position of the projection image; and a controller configured to control the image processor to set a position of the content image included in the projection image in order to minimize a difference between a display position of the content image and the target position when an optical axis of the projector is orthogonal to the projection surface, and control the driver to set the orientation of the projector in order to project the projection image at the target position on the projection surface.

Abstract: A projection device includes a detection unit configured to detect a specific object, a projection unit configured to project a projection image indicated by a video signal, a drive unit configured to change the direction of the projection unit so as to change a projection position of the projection image, and a controller configured to control the drive unit. The controller controls the drive unit such that the drive unit performs a first control in which the projection image is projected at a position following the motion of the specific object detected by the detection unit and a second control in which the projection position of the projection image is changed according to the video signal.

Abstract: A projection device includes: a detection unit configured to detect a specific object; a projection unit configured to project a first projection image; a drive unit configured to change a direction of the projection unit so as to change the projection position of the first projection image; a controller configured to control the drive unit such that the first projection image is projected while following the motion of the detected specific object; and a communication unit configured to receive information of a second projection image projected by another projection device. The controller acquires information relating to a position of the second projection image through the communication unit, and controls a projection method of the first projection image based on the positions of the first projection image and the second projection image such that the first projection image and the second projection image are not overlapped with each other when they are projected.

Abstract: A tactile input and output device includes: a panel; a touch information obtaining unitobtaining touch positions; an order input determining unit determining setting information; a vibration position determining unit determining a first touch position and a second touch position, the first touch position observed in a spatial order, and corresponding to the determined setting information, and the second touch position being another one of the touch positions than the first touch position; and a multi-point simultaneous vibration control unit controlling the vibration on the panel to provide a predetermined vibration to the first touch position and provide no predetermined vibration to the second touch position.

Abstract: An information device includes a slider (100) including a first metal antenna (103a), a second metal antenna (103b), and a heater (107) configured to vary the distance between the first metal antenna (103a) and the second metal antenna (103b) in a direction orthogonal to a track direction on the surface of a disk (104), and an arm motor (120) configured to move the slider (100) in parallel to the surface of the disk (104). The arm motor (120) and the heater (107) cause the first metal antenna (103a) and the second metal antenna (103b) to respectively follow corresponding target tracks.

Abstract: With a large capacity of an optical disk and high-speed recording, a frequency of a recording signal is increased and a pulse width is narrowed. In the case that a laser is driven by a signal having the short pulse width, unfortunately the high-speed recording is hardly performed to an optical disk when a rise time and a fall time of the optical pulse are lengthened. During user data recording, a bottom driving current is set to a second bottom driving current value that is a current value of a threshold or less, so that the rise time and the fall time of the optical pulse can be shortened to perform the high-speed recording of the optical disk.

Abstract: Provided is an optical disk apparatus capable achieving stable focus control or tracking control. A first detector receives reflected light from an object lens optical system, a second detector receives reflected light from a prescribed information layer, a positional deviation determination unit determines positional deviation between a focal point of a light beam and a point where information on the prescribed information layer is recorded or reproduced, on the basis of a signal from the second detector, a stray light determination unit determines a surface stray light component which is reflected light from the surface of an optical disk and is included in the signal from the positional deviation determination unit, on the basis of the signal from the first detector, and a stray light correction unit corrects the signal output from the positional deviation determination unit on the basis of the surface stray light component thus determined.

Abstract: Provided is an optical disc device including a focus control unit for performing control so that a convergent point of a main beam converges on a predetermined information layer, a tracking control unit for performing control so that the convergent point of the main beam scans a predetermined track or a predetermined mark sequence on an information layer, a sub beam receiving unit for receiving a sub beam reflected off the information layer and outputting a signal according to an amount of beam received, and a microcomputer for detecting, during a recording operation of recording the information, a focus loss-of-control state where the convergent point of the main beam deviates from the predetermined information layer or a tracking loss-of-control state where the convergent point of the main beam deviates from the predetermined track or the predetermined mark sequence on the information layer.

Abstract: An optical head (10) focuses and irradiates a servo light beam onto at least one servo layer, and focuses and irradiates a recording/reproducing light beam onto a plurality of recording layers. An initial recording unit (20) records layer position information for specifying a position of each recording layer in advance in a predetermined position of each recording layer before recording user data in use of the recording/reproducing light beam, a layer position detection unit (21) reads layer position information in a predetermined recording layer by using the recording/reproducing light beam, and detects which one of the plurality of recording layers is the predetermined recording layer where the focal point of the recording/reproducing light beam is positioned, based on the read layer position information, and a seeking unit (22) moves the focal point of the recording/reproducing light beam to a target position based on the detected layer position.

Abstract: Provided is an optical disk apparatus capable achieving stable focus control or tracking control. A first detector receives reflected light from an object lens optical system, a second detector receives reflected light from a prescribed information layer, a positional deviation determination unit determines positional deviation between a focal point of a light beam and a point where information on the prescribed information layer is recorded or reproduced, on the basis of a signal from the second detector, a stray light determination unit determines a surface stray light component which is reflected light from the surface of an optical disk and is included in the signal from the positional deviation determination unit, on the basis of the signal from the first detector, and a stray light correction unit corrects the signal output from the positional deviation determination unit on the basis of the surface stray light component thus determined.

Abstract: A method for inspecting an optical information storage medium includes the steps of: irradiating the storage medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities that include a first linear velocity Lv1 and a second linear velocity Lv2 higher than the first linear velocity Lv1; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam that irradiates the medium based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters for the focus and/or tracking error signal(s) to obtain residual errors

Abstract: With a large capacity of an optical disk and high-speed recording, a frequency of a recording signal is increased and a pulse width is narrowed. In the case that a laser is driven by a signal having the short pulse width, unfortunately the high-speed recording is hardly performed to an optical disk when a rise time and a fall time of the optical pulse are lengthened. During user data recording, a bottom driving current is set to a second bottom driving current value that is a current value of a threshold or less, so that the rise time and the fall time of the optical pulse can be shortened to perform the high-speed recording of the optical disk.

Abstract: A disk motor which rotationally drives an optical disk; a rotational phase detector which detects a rotational phase thereof; an optical head having a collecting lens which collects an optical bean; a light detector and an LE signal generator which detect a position of the collecting lens in the optical head as a position signal; an LE signal memory recorder and an LE signal memory which store, in synchronization with a rotational phase to be detected by the rotational phase detector, the positional signal from the LE signal generator; an LE signal memory regenerator which outputs as a correction signal, in synchronization with a rotational phase to be detected, the positional signal which has already been detected; a subtractor; an LE signal filter, a drive circuit and a Tk actuator which move the collecting lens using a signal from the subtractor; and a low pass filter which reduces a high-frequency component of the correction signal are provided.

Abstract: An optical disk apparatus according to the present invention generates a divided clock signal by dividing a recording clock signal, and based on the divided clock signal, determines a test emission pattern for test recording which is used for controlling the power of a light beam that is output from an emission section. When the linear velocity at recording changes, the division ratio is adjusted in a direction of reducing a change in frequency of the divided clock signal. In an optical disk apparatus which performs laser power control by conducting a test emission with multipulses in a test area, a good detection accuracy of a multi-pulse average value can be maintained even at high x-speeds.

Abstract: An optical disc apparatus of the present invention records and/or reproduces data to/from an optical disc where data is recorded on one of a groove track and a land track. The optical disc apparatus includes an identification section for identifying the type of the optical disc as being either an optical disc where data is recorded or reproduced to/from a groove track or an optical disc where data is recorded or reproduced to/from a land track. The identification section identifies the type of the optical disc while in a state where a focus control is being performed and a tracking control is not being performed.

Abstract: A method for inspecting an optical information storage medium includes irradiating the medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters to obtain residual errors of the focus and/or tracking error signal(s) and comparing the residual errors to predetermined reference values.

Abstract: A method for inspecting an optical information storage medium includes irradiating the medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters to obtain residual errors of the focus and/or tracking error signal(s) and comparing the residual errors to predetermined reference values.

Abstract: An optical disk device includes a DPDTE signal generating section that detects misalignment between a light spot and a mark or a pit, an FE signal generating section, an optical crosstalk correcting section which corrects a signal output by the FE signal generating section using the DPDTE signal generating section, and a focus control section which controls an actuator so that a light beam converges on an information layer. The DPDTE signal generating section detects the misalignment on the basis of phase information obtained from signals received from predetermined light receiving areas. The optical crosstalk correcting section performs a correcting operation of removing a signal component from predetermined receiving areas of a detector which component is used for a DPDTE signal, the signal component being contained in the signals from the predetermined light receiving areas of the detector which signals are used by the FE signal generating section.

Abstract: A method for inspecting an optical information storage medium includes irradiating the medium with a laser beam and rotating the medium by a constant linear velocity control technique by reference to the radial location at which the laser beam forms a spot on the medium; changing the rotational velocities according to the radial location on the medium between at least two linear velocities; generating a focus error signal and/or a tracking error signal based on the light reflected from the medium; performing a focus control and/or a tracking control on the laser beam based on the focus and/or tracking error signal(s); and passing the branched outputs of control loops for the focus and/or tracking error signal(s) through predetermined types of frequency band-elimination filters to obtain residual errors of the focus and/or tracking error signal(s) and comparing the residual errors to predetermined reference values.