Abstract: A laser drive circuit includes a first current supply unit which supplies a first drive current to a first laser diode based on a drive waveform signal generated by a drive waveform generating unit, a second current supply unit which supplies a second drive current to a second laser diode based on the drive waveform signal generated by the drive waveform generating unit, and a switching unit which selectively supplies the drive waveform signal generated by the drive waveform generating unit to one of the first current supply unit and the second current supply unit. The drive waveform generating unit may be part of the laser drive circuit, or may be separate from the laser drive circuit, and may include a drive waveform information storage unit which stores a recording strategy according to a type of disk.

Abstract: According to the present invention, in an optical disk apparatus constructed to supply signals for controlling a semiconductor laser drive circuit provided to an optical pickup from a signal processing circuit through a flexible cable, the semiconductor laser drive circuit is so constructed as to generate a drive current signal for the semiconductor laser on the basis of a binary signal and a clock signal which are supplied from the signal processing circuit through the flexible cable and the signal processing circuit is so constructed as to supply the clock signal during recording of data and stop the supply of the clock signal during reproduction of data.

Abstract: An appearance of a vehicle is improved by reducing an opening formed in an interior trim for vehicle. An actuator unit is mounted in a pillar of the vehicle, and a linking rod is linked to a rack bar, which linearly reciprocates along an axial direction provided at this actuator unit. This linking rod protrudes from the pillar through the opening formed in an interior trim, and the other end thereof is linked to a back door. Moreover, this actuator unit is disposed so that a moving direction of the rack bar inclines on a vehicle-rear side by an opening/closing inclination angle &agr; with respect to a direction perpendicular to the vehicle and inclines inward in a vehicle-width direction by a width inclination angle.

Abstract: The invention provides to make an automatic opening and closing apparatus for a vehicle to be thin. An outer rack is attached to an outer side of a stay fixed to a vehicle in such a manner as to freely move in an axial direction along the stay. A thickness of the stay is set to be smaller than a width, and a cross sectional shape thereof is formed so as to be in a substantially thin convex shape. A width in a base end wall portion of the outer rack is formed so as to be larger than a width of a side surface wall portion corresponding to a thickness of the outer rack, and the outer rack is formed in a substantially thin C cross sectional shape. It is possible to make a thickness of a slide mechanism about a gear with of rack gears lined up in an axial direction in the side surface wall portion by making the width of the side surface wall portion slightly larger than the gear width of the rack gear.

Abstract: The invention relates to a wiper apparatus, which can effectively regulate overrun of a wiper arm, wherein the base end portion of the main wiper arm 8 is pivotally supported at the vehicle body side via a pivotal axis 8a so as to rock, the wiper arm 8 and one end of the first link 10 are pivotally supported so as to rock, via the first pivotal axis 8b, at an intermediate position at the tip end side of the corresponding axis 8a, one end of the second link 11 is pivotally supported, via the second pivotal axis 10a, at the other end of the first link 10, and the other end of the second link is connected integral with the main wiper axis 5 corresponding to the third pivotal axis, and wherein the main wiper arm 8 is set so as to be located at the upper reversing position when the first pivotal axis 8b, the second pivotal axis 10a and main wiper axis (third pivotal axis) 5 are positioned in the same straight line in order.

Abstract: A winding structure of induction electric apparatus cooling disc windings within a cooling block evenly. With respect to a pair of cooling blocks including a cooling block A disposed upstream of axial insulating cylinder cooling flow of a blocking plate blocking a vertical cooling passage and another cooling block A disposed downstream of the axial insulating cylinder cooling flow of the blocking plate, a vertical guide cooling passage splits an outer vertical cooling passage into two parts. The vertical guide cooling passage includes a side face of the disc windings and a flow passage adjusting guide plate with the flow passage adjusting guide plate placed along the circumference of the disc windings with two ends facing the disc winding side, surrounding the disc windings disposed upstream of the axial insulating cylinder cooling flow of the blocking plate and the disc windings disposed downstream of the axial insulating cylinder cooling flow of the blocking plate.

Abstract: The scanning printing apparatus prints an image composed of a plurality of row images in accordance with image signals and each row images is printed while moving in a direction on a recording medium. The apparatus includes a moving unit for moving the apparatus itself on the medium in the one direction, a first ejection head for printing each row image of the image on the medium, a second ejection head for printing predetermined invisible marks which cannot be identified by humans on the medium, a first sensor for detecting the invisible marks printed on the medium and a control unit for controlling the moving unit based on detection results of the first sensor. The printing method prints the image by using the apparatus while correcting a printing position based on a position of the detected invisible marks.

Abstract: The scanning type printing apparatus prints an image and/or a text on a recording medium in accordance with image data and/or text data while moving on the recording medium. The apparatus includes a moving unit, an image processing unit that, prior to printing, rotates the image and/or the text to be printed based on the image data and/or the text data and/or reverses front and back thereof; and an ejection head that includes at least one nozzle and at least one ink ejection unit that eject ink.

Abstract: According to the present invention, in an optical disk apparatus constructed to supply signals for controlling a semiconductor laser drive circuit provided to an optical pickup from a signal processing circuit through a flexible cable, the semiconductor laser drive circuit is so constructed as to generate a drive current signal for the semiconductor laser on the basis of a binary signal and a clock signal which are supplied from the signal processing circuit through the flexible cable and the signal processing circuit is so constructed as to supply the clock signal during recording of data and stop the supply of the block signal during reproduction of data.

Abstract: A laser waveform generation function is provided in a laser driving waveform generator 2 near a laser 3. A recording clock generator 9 is included in the laser driving waveform generator 2 to generate a clock with a frequency higher than that of a synchronizing clock 202. This allows a recording laser current (waveform) to be generated without transmission of a high frequency signal from the modulator 6. Further, because the synchronizing clock 202 is stopped upon a reproduction operation including reproduction operation in an ID unit, undesired effects on a reproduction operation such as ID reproduction can be reduced. Because the response speed of the recording clock generator 9 can be changed, a high precision clock can be generated. Thus, a high-precision recording laser current (waveform) can be generated.

Abstract: An optical disk apparatus uses a laser driver which can measure the frequency of the high-frequency superimposed current of the semiconductor laser simply and accurately. The apparatus includes a semiconductor laser which emits a laser beam onto the optical disk, a laser driver which drives the semiconductor laser with a current, with the high-frequency current being superimposed thereon, and measures the frequency of the high-frequency current, and a main controller which controls the frequency of the high-frequency current produced by the laser driver by using the frequency measured by the laser driver.

Abstract: A laser drive (LD) unit 1 according to the present invention is provided with a laser drive waveform controller 6, into which information for setting the laser drive is entered from a controller 2, for generating a laser drive waveform on the basis of that information and supplying an indicated amperage; an LD current setting unit 7 for setting a laser drive current matching the indicated amperage; an LD current output unit 8 for varying the laser drive current on the basis of the laser drive waveform and supplying the current so varied to a laser diode 3; and a current setting corrector 9, into which a monitor signal obtained at the time of monitoring the laser beam emission from the laser diode 3 is monitored, for correcting the laser drive current set by the current setting unit 7 by using that monitor signal to adjust the power of the laser diode 3. The laser drive waveform controller 6, current setting unit 7, current output unit 8 and current setting corrector 9 are formed on the same substrate.

Abstract: A laser drive integrated circuit and an optical disk apparatus using the laser drive integrated circuit for forming high-density marks. The optical disk apparatus has a drive waveform information storage unit for storing at least one information of the drive waveform for driving a laser diode in response to a binary recording signal recorded in a recording medium and a drive waveform decoder for decoding the drive waveform based on the information stored in the drive waveform information storage unit. The recording strategy can be changed in accordance with the variations and fluctuations of recording media or the characteristics of the recording media, while at the same time reducing the number of signal lines of flexible wiring and alleviating the effect of the signal distortion.

Abstract: A laser drive (LD) unit 1 according to the present invention is provided with a laser drive waveform controller 6, into which information for setting the laser drive is entered from a controller 2, for generating a laser drive waveform on the basis of that information and supplying an indicated amperage; an LD current setting unit 7 for setting a laser drive current matching the indicated amperage; an LD current output unit 8 for varying the laser drive current on the basis of the laser drive waveform and supplying the current so varied to a laser diode 3; and a current setting corrector 9, into which a monitor signal obtained at the time of monitoring the laser beam emission from the laser diode 3 is monitored, for correcting the laser drive current set by the current setting unit 7 by using that monitor signal to adjust the power of the laser diode 3. The laser drive waveform controller 6, current setting unit 7, current output unit 8 and current setting corrector 9 are formed on the same substrate.

Abstract: An information recording/reproducing apparatus includes a semiconductor laser, a laser driver which drives the semiconductor laser, an optical system which focuses light emitted from the semiconductor laser on an information recording medium, a photodetector which detects light reflected from the information recording medium, and outputs a reflection light signal, a modulation circuit which modulates information in accordance with a predetermined rule, and outputs a binary signal representing the modulated information, and a calculation/control circuit which controls the modulation circuit. The laser driver includes a delay circuit, and receives the binary signal, generates a recording current signal corresponding to the binary signal through the delay circuit, and transmits an output of the delay circuit to the calculation/control circuit as a monitor signal. The calculation/control circuit generates a timing signal for sampling and holding the reflection light signal based on the monitor signal.

Abstract: For providing an information recording/reproducing apparatus, in which information data can be recorded and reproduced into and from various kinds of recording mediums, by use of a laser driver which enables recording strategy control for each kind recording medium, wherein in a laser driver, which obtains an NRZ signal from a modulation circuit and a clock signal being synchronized therewith, so as to make a PLL circuit disposed therein to oscillate a recording frequency, thereby enabling to generate a recording current signal corresponding to the NRZ signal, there is provided an unlock detection circuit, and recording/reproducing operation is controlled by a detection signal from the unlock detection circuit.

Abstract: A laser waveform generation function is provided in a laser driving waveform generator 2 near a laser 3. A recording clock generator 9 is included in the laser driving waveform generator 2 to generate a clock with a frequency higher than that of a synchronizing clock 202. This allows a recording laser current (waveform) to be generated without transmission of a high frequency signal from the modulator 6. Further, because the synchronizing clock 202 is stopped upon a reproduction operation including reproduction operation in an ID unit, undesired effects on a reproduction operation such as ID reproduction can be reduced. Because the response speed of the recording clock generator 9 can be changed, a high precision clock can be generated. Thus, a high-precision recording laser current (waveform) can be generated.

Abstract: An integrated retrieval scheme retrieves data involved in a plurality of semi-structured documents scattering over open networks and collects the required information item by item from the semi-structured documents through a unified interface without regard to differences in the document structures, presentation styles, and elements of the semi-structured documents. The search scheme receives a query consisting of search items and search conditions from a user.

Abstract: An information recording/reproducing apparatus which can record and reproduce information data into and from various kinds of recording mediums has a laser driver which enables recording strategy control for each kind of recording medium. The laser driver receives an NRZ binary signal and a clock signal synchronized with the NRZ binary signal from a modulation circuit, and generates a recording current signal corresponding to the NRZ binary signal. The laser driver includes a PLL circuit disposed in the laser driver which oscillates at a recording frequency, and an unlock detection circuit which detects an oscillating condition of the PLL circuit and outputs a detection signal indicative of the oscillating condition of the PLL. A recording operation of the information recording/reproducing apparatus is controlled based on the detection signal outputted from the unlock detection circuit.

Abstract: A laser drive integrated circuit and an optical disk apparatus using the laser drive integrated circuit for forming high-density marks. The optical disk apparatus includes a drive waveform information storage unit for storing at least one information of a drive waveform for driving a laser diode in response to a binary recording signal to be recorded in a recording medium, and a drive waveform decoder for decoding the drive waveform based on the information stored in the drive waveform information storage unit. A recording strategy can be changed in accordance with variations and fluctuations of recording media or characteristics of the recording media, while at the same time reducing a number of signal lines in flexible wiring and alleviating effects of signal distortion in the signal lines.