Abstract: A camera movement amount acquisition unit (101) acquires as a camera movement amount (110), an estimated movement amount of a vehicle (10) calculated using photographed image data acquired by, a camera (20) installed on the vehicle (10). In synchronization with the acquisition of the camera movement amount (110) by the camera movement amount acquisition unit (101), a LiDAR movement amount acquisition unit (102) acquires as a LiDAR movement amount (120), an estimated movement amount of the vehicle (10) with higher estimation accuracy than estimation accuracy of the camera movement amount (110). A comparison decision unit (103) compares the camera movement amount (110) with the LiDAR movement amount (120), and decides to use the camera movement amount (110) for a calibration operation when a difference between the camera movement amount (110) and the LiDAR movement amount (120) is less than a threshold value.

Abstract: The present invention improves slidability between a moving part and a support member that supports the moving part. A head-up display device includes: a display that emits display light; a moving part on which a first sliding surface is formed; and a support member on which a second sliding surface that comes into contact with the first sliding surface is formed. The support member movably supports the moving part. The head-up display device displays vehicle information as virtual images from the display light. Linear protrusions and recesses are formed on the first sliding surface and/or the second sliding surface following the trajectory along which the moving part moves.

Abstract: The present invention improves slidability between a moving part and a support member that supports the moving part. A head-up display device includes: a display that emits display light; a moving part on which a first sliding surface is formed; and a support member on which a second sliding surface that comes into contact with the first sliding surface is formed. The support member movably supports the moving part. The head-up display device displays vehicle information as virtual images from the display light. Linear protrusions and recesses are formed on the first sliding surface and/or the second sliding surface following the trajectory along which the moving part moves.

Abstract: A gain setting method for setting a gain in an amplifier that amplifies signals obtained from an optical disk, which includes: a measuring step for measuring an output level of the amplifier; and a gain setting step for setting the gain as the value of the target level/output level, when the measured output level is in a range of 1/N times and N times (N is an integer of 2 or larger) with respect to the preset target level.

Abstract: To discriminate a disk in a short time, a calculating part 16 measures an amplitude of one of a focus error signal and a tracking error signal, which are output from a differential signal generating part 15, several times, and outputs the measured amplitudes to a controller 20. The controller 20 compares the input amplitudes with threshold values stored in a memory 21, respectively, and determines whether or not an amplification gain of one of the focus error signal and the tracking error signal is changed. If it is determined that the amplification gain of one of the focus error signal and the tracking error signal is changed, the controller 20 changes the amplification gain of one of the focus error signal and the tracking error signal to an amplification gain represented by one of the threshold values and discriminates the kind of an optical disk based on the changed amplification gain.

Abstract: A foaming agent used for manufacturing a foamed or porous metal. The agent is composed of a foamable powder and a coating layer of SiO2 covering the particle surfaces of the powder and having a good wetting property therewith.

Abstract: In an optical disk apparatus, when a focus deviation occurs, amplitude driving of a pickup is performed for focus pull-in immediately without a waiting time. The amplitude driving is performed with a first amplitude a given number of times, and when detection of a focusing point fails, amplitude driving with a second amplitude larger than the first amplitude is performed.

Abstract: A gain setting method for setting a gain in an amplifier that amplifies signals obtained from an optical disk, which comprises: a measuring step for measuring an output level of the amplifier; and a gain setting step for setting the gain as the value of the output level/target level, when the measured output level is 1/N?N times (N is an integer of 2 or larger) with respect to the preset target level.

Abstract: A foamed/porous metal having fine bubbles in a matrix of aluminum or magnesium has shells of aluminum oxide or magnesium oxide formed between the matrix and the bubbles of carbon dioxide.

Abstract: An aluminum plate (13) is first plastic-deformed (FIG. 3D) in such a way as to envelop a foaming-agent compact (14), which is not foamed yet. Then, terminals of the aluminum plate (13) are integrally seam-welded (FIG. 3E) to thereby obtain a closed section structure (23). Subsequently, the foaming-agent compact (14) contained in the closed section structure (23) is foamed by being heated to foaming temperature thereof. Consequently, a pipe-like frame filled with a foam (27) is obtained.

Abstract: An automobile hood has a skin and a frame reinforcing it. At least part of a space defined between the skin and the frame is packed with a foamed metal which breaks down continuously upon receiving an external force. Its continuous breakdown absorbs a substantially equal amount of impact energy continuously.

Abstract: To discriminate a disk in a short time, a calculating part 16 measures an amplitude of one of a focus error signal and a tracking error signal, which are output from a differential signal generating part 15, several times, and outputs the measured amplitudes to a controller 20. The controller 20 compares the input amplitudes with threshold values stored in a memory 21, respectively, and determines whether or not an amplification gain of one of the focus error signal and the tracking error signal is changed. If it is determined that the amplification gain of one of the focus error signal and the tracking error signal is changed, the controller 20 changes the amplification gain of one of the focus error signal and the tracking error signal to an amplification gain represented by one of the threshold values and discriminates the kind of an optical disk based on the changed amplification gain.

Abstract: A foaming agent used for manufacturing a foamed or porous metal. The agent is composed of a foamable powder and a coating layer of SiO2 covering the particle surfaces of the powder and having a good wetting property therewith.

Abstract: An automobile hood has a skin and a frame reinforcing it. At least part of a space defined between the skin and the frame is packed with a foamed metal which breaks down continuously upon receiving an external force. Its continuous breakdown absorbs a substantially equal amount of impact energy continuously.

Abstract: Signals (A, B, C, and D) obtained by reading information recorded on an optical disk are summed and amplified by an summing amplifier (N1) to generate an RF signal. The RF signal is detected by a detection circuit (N5) to obtain an off-track sate detection signal. If the off-track state detection signal repeatedly alternates between an off-track state and an on-track state, a duty detection unit (N8) measures the duty of the off-track state detection signal. From the result, a sensitivity determining unit (N9) determines the detection sensitivity of the off-track state detection signal in the detection circuit (N5) and a detection sensitivity adjusting circuit (N6) adjusts the detection sensitivity of the off-track state detection signal in the detection circuit (N5).

Abstract: An optical disc apparatus for performing tracking control based on TE and OFT signals even with such low-quality optical discs that do not meet the standards on track-to-track distance. A signal generating unit generates a TE signal and also generates an OFT signal from an input RF signal based on a first threshold value. A duty ratio calculating unit calculates a duty ratio, a ratio of the H signals to the OFT signal in length, by measuring the time of the H signals in the OFT signal. A threshold value changing unit changes the threshold value from the first value to the second value if the duty ratio does not fall within a predetermined range. A tracking control unit controls the driving unit in accordance with the TE signal and the OFT signal when the duty ratio falls within the predetermined range.

Abstract: A filling structure 10 is a structure in which a filling material 12 having a higher impact energy absorbing performance is inserted into the inner part of a hollow member 11, and the filling material 12 so inserted is fixed to the hollow member 11 with an adhesive layer 13 resulting when the filling material 12 is heated to expand and is cooled to set thereafter.

Abstract: An aluminum plate (13) is first plastic-deformed (FIG. 3D) in such a way as to envelop a foaming-agent compact (14), which is not foamed yet. Then, terminals of the aluminum plate (13).are integrally seam-welded (FIG. 3E) to thereby obtain a closed section structure (23). Subsequently, the foaming-agent compact (14) contained in the closed section structure (23) is foamed by being heated to foaming temperature thereof. Consequently, a pipe-like frame filled with a foam (27) is obtained.

Abstract: A foaming agent used for manufacturing a foamed or porous metal. The agent is composed of a foamable powder and a coating layer of SiO2 covering the particle surfaces of the powder and having a good wetting property therewith.

Abstract: In an optical disk apparatus, when a focus deviation occurs, amplitude driving of a pickup is performed for focus pull-in immediately without a waiting time. The amplitude driving is performed with a first amplitude a given number of times, and when detection of a focusing point fails, amplitude driving with a second amplitude larger than the first amplitude is performed.