Abstract: When an engine is started in a motor running mode, a control unit performs engine starting control by raising the engine speed through slip engagement of an engine coupling/decoupling clutch, temporarily reducing engaging force of the engine coupling/decoupling clutch after the engine becomes able to rotate by itself, and then fully engaging the engine coupling/decoupling clutch. The control unit advances the intake valve opening/closing timing at an earlier point in time as the motor speed is higher.

Abstract: It is provided a control device of a hybrid vehicle including an engine and an electric motor as a drive power source for running, a clutch connecting/disconnecting a power transmission path between the engine and the electric motor, and an automatic transmission coupled to the electric motor in a power transmittable manner to transmit power from the drive power source for running toward drive wheels, the hybrid vehicle being configured to perform engine running using at least the engine as the drive power source for running with the clutch engaged and motor running using only the electric motor as the drive power source for running with the clutch released.

Abstract: Disclosed is a vehicle control apparatus that can concurrently achieve an improved drivability and an excellent restart performance of an internal combustion engine. The vehicle control apparatus includes an eco-run system that automatically stops the engine when an automatic stop condition is established and restarts the engine when a restart condition is established, a throttle motor that opens and closes a throttle valve adjusting air amount to be sucked into the engine, and a vehicle speed sensor that detects the vehicle speed. The vehicle control apparatus is adapted to control the throttle motor to enlarge the throttle valve opening degree in response to the higher vehicle speed, according to the vehicle speed information from the vehicle speed sensor (Step S3 to Step S7), when the engine is automatically stopped while the vehicle is travelling (Step S2).

Abstract: An optical pickup device includes a diffraction grating 12 for separating a light beam emitted from a semiconductor laser element into at least three light beams. The diffraction grating 12 is divided into three regions by a straight line extending in a direction parallel to a tangent line of a track of an optical information recording medium. A second region 12B is divided into a first sub-block 13 and a second sub-block 14 by a straight line extending in a direction parallel to a radius direction of the optical information recording medium. The first sub-block 13 has a phase difference of approximately 180 degrees from the second sub-block 14. The first region 12A has a phase difference of approximately 90 degrees from the first sub-block 13 and has a phase difference of approximately 180 degrees from the third region 12C.

Abstract: The optical pickup device according to the present invention includes: a light source which emits light at first, second and third wavelengths; an optical path combining unit which combines vectors of the light at the first, second and third wavelengths which is emitted by the light source, and matches optical axes of the light at the first wavelength and the light at the third wavelength; a light condensing unit which condenses the light from the optical path combining unit onto the optical information storage medium; a diffraction element which diffracts light at the first, second and third wavelength which is reflected from the optical information storage medium, in a first direction and a second direction respectively; a first photo detector which receives light at the first, second and third wavelength that is diffracted in the first direction by the diffraction element; a second photo detector which receives light at the first and third wavelength that is diffracted in the second direction by the diffra

Abstract: An optical pickup device includes a diffraction grating 12 for separating an emitted light beam into at least three light beams. The diffraction grating 12 is divided into three regions by dividing lines D1 and D2 extending in a first direction parallel to a tangent line of a track of an optical information recording medium. A second region 12B is divided into four sub-blocks by a dividing line D3 extending in the first direction and a dividing line D4 extending in a second direction that crosses the first direction. The sub-blocks located diagonally opposite to each other have a same phase, and the sub-blocks located adjacent to each other have a phase difference of approximately 180 degrees. The first region 12A has a phase difference of approximately 90 degrees from each sub-block of the second region 12B, and the first region 12A has a phase difference of approximately 180 degrees from the third region 12C.

Abstract: A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to a tangential direction of tracks of an optical information recording medium. A periodic structure of a second region 12B has a phase difference of approximately 180 degrees from a periodic structure of a third region 12C, and a periodic structure of a first region 12A has a phase difference of approximately 180 degrees from a periodic structure of a fourth region 12D.

Abstract: A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to a tangential direction of tracks of an optical information recording medium. A periodic structure of a second region 12B has a phase difference of approximately 180 degrees from a periodic structure of a third region 12C, and a periodic structure of a first region 12A has a phase difference of approximately 180 degrees from a periodic structure of a fourth region 12D.

Abstract: Information that is required for laying out character string data is entered, as are character string data. The printing attributes for the data are then edited, and are employed to extract contour information. Thereafter, the extracted contour information is employed to determine the information that is to be used as a reference when laying out the character string data, and a layout position is specified. Then, the various data that are obtained are stored as printing data, and the character string data are laid out in a drawing area. Therefore, the printing data can be precisely and easily prepared, without the work efficiency of a user being deteriorated.

Abstract: An optical pickup device includes a diffraction grating 12 for separating a light beam emitted from a semiconductor laser element into at least three light beams. The diffraction grating 12 is divided into three regions by a straight line extending in a direction parallel to a tangent line of a track of an optical information recording medium. A second region 12B is divided into a first sub-block 13 and a second sub-block 14 by a straight line extending in a direction parallel to a radius direction of the optical information recording medium. The first sub-block 13 has a phase difference of approximately 180 degrees from the second sub-block 14. The first region 12A has a phase difference of approximately 90 degrees from the first sub-block 13 and has a phase difference of approximately 180 degrees from the third region 12C.

Abstract: A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to a tangential direction of tracks of an optical information recording medium. A periodic structure of a second region 12B has a phase difference of approximately 180 degrees from a periodic structure of a third region 12C, and a periodic structure of a first region 12A has a phase difference of approximately 180 degrees from a periodic structure of a fourth region 12D.

Abstract: An optical pickup device includes a diffraction grating 12 for separating an emitted light beam into at least three light beams. The diffraction grating 12 is divided into three regions by dividing lines D1 and D2 extending in a first direction parallel to a tangent line of a track of an optical information recording medium. A second region 12B is divided into four sub-blocks by a dividing line D3 extending in the first direction and a dividing line D4 extending in a second direction that crosses the first direction. The sub-blocks located diagonally opposite to each other have a same phase, and the sub-blocks located adjacent to each other have a phase difference of approximately 180 degrees. The first region 12A has a phase difference of approximately 90 degrees from each sub-block of the second region 12B, and the first region 12A has a phase difference of approximately 180 degrees from the third region 12C.

Abstract: A pickup device includes a diffraction grating 12 for separating a light beam emitted from the light source into at least three light beams. The diffraction grating 12 is divided into four regions by straight lines extending in a direction parallel to a tangential direction of tracks of an optical information recording medium. A periodic structure of a second region 12B has a phase difference of approximately 180 degrees from a periodic structure of a third region 12C, and a periodic structure of a first region 12A has a phase difference of approximately 180 degrees from a periodic structure of a fourth region 12D.

Abstract: An optical pickup device includes: a first light-receiving element for receiving a main beam of a first light beam; second and third light-receiving elements for receiving sub-beams of the first light beam; a fourth light-receiving element for receiving a main beam of a second light beam; and fifth and sixth light-receiving elements for receiving sub-beams of the second light beam. The first through third light-receiving elements are located on a first line with the first light-receiving element sandwiched between the second and third light-receiving elements. The fourth through sixth light-receiving elements are located on a second line with the fourth light-receiving element sandwiched between the fifth and sixth light-receiving elements. The first line and the second line are parallel to each other.

Abstract: An optical pickup apparatus for use with a semiconductor laser which outputs a light beam, the optical pickup apparatus has; a diffraction grating for diffracting the light beam into diffracted light; a collimator lens for rendering the diffracted light diffracted by the diffraction grating as a parallel beam; an objective lens for focusing the parallel beam towards an optical information recording medium; a hologram element for diffracting return light reflected from the optical information recording medium; a plurality of light receiving elements for receiving the diffracted light diffracted by the hologram element; and an incidence preventing area placed between the hologram element and the light receiving elements for, in the case where the light beam is focused on the recording surface on a side close to the objective lens out of recording surfaces of multilayer of the optical information recording medium, substantially preventing reflected light from the recording surface on a side remote from the ob

Abstract: An optical pickup has a semiconductor laser, a diffractive optical element that has first diffraction regions and second diffraction regions and diffracts a beam emitted by the semiconductor laser, an objective lens that focuses the diffracted beam on an optical disc, and a detection unit that detects a tracking error signal using the diffracted beam reflected by the optical disc. When a zero order diffraction beam is focused on the optical disc, a first order diffraction beam is diffracted by the first diffraction regions to be focused at a position between the objective lens and the optical disc, and diffracted by the second diffraction regions to be focused at a position beyond the optical disc. The first order diffraction beam has a beam width that, on the optical disc in a radial direction thereof, is two times or greater a track pitch of the optical disc.

Abstract: An optical pickup device includes a diffraction grating for separating a light beam from a semiconductor laser into at least three light beams. The diffraction grating is partitioned into five areas each having a given periodic structure: a first area; a second area adjacent to the first area in a first direction; a third area adjacent to the first and second areas in a second direction; a fourth area sandwiching the third area with the first area; and a fifth area adjacent to the fourth area in the first direction and sandwiching the third area with the second area. The phase of the periodic structure of each of the first and fifth areas is ahead of that of the third area by substantially 90°. The phase of the periodic structure of each of the second and fourth areas is behind that of the third area by substantially 90°.

Abstract: An optical pickup wherein a main beam and at least two sub-beams are collected on a disc and a tracking error signal is detected from push pull signals generated from each beam. A phase of the push pull signal generated from the first sub-beam is shifted from a phase of the push pull signal generated from the second sub-beam by substantially 180°. A phase difference is given to a part of the first sub-beam (10) and a part of the second sub-beam (11) by a diffraction optical element (2) which generates the first sub-beam (10) and the second sub-beam (11).

Abstract: The optical pickup device according to the present invention includes: a light source which emits light at first, second and third wavelengths; an optical path combining unit which combines vectors of the light at the first, second and third wavelengths which is emitted by the light source, and matches optical axes of the light at the first wavelength and the light at the third wavelength; a light condensing unit which condenses the light from the optical path combining unit onto the optical information storage medium; a diffraction element which diffracts light at the first, second and third wavelength which is reflected from the optical information storage medium, in a first direction and a second direction respectively; a first photo detector which receives light at the first, second and third wavelength that is diffracted in the first direction by the diffraction element; a second photo detector which receives light at the first and third wavelength that is diffracted in the second direction by the diffra

Abstract: An optical pickup device includes a first semiconductor laser device, a second semiconductor laser device, a third semiconductor laser device, a first diffraction grating, a beam splitter, a quarter-wave plate, a collimator lens, a first polarization hologram device, a second polarization hologram device and a third polarization hologram device. The second semiconductor laser device and the third semiconductor laser device are provided in a light source/detection unit together with a second diffraction grating and photo-receiver groups, so as to make the optical pickup device compact.