Abstract: A motorized aircraft is controlled by a drive control means (120) that rotationally drives a propulsion system propeller. The propulsion system propeller is driven by a plurality of electric motors (130). Total output of the plurality of electric motors (130) and required output satisfy the following relationship: Pmax(n?1)/n>Preq (where Pmax is the total output (kW) of the electric motors, n is the number of electric motors, and Preq is the required output (kW)).

Abstract: A lattice point group generating method generates a group of pre-color conversion lattice points to be contained in a color conversion table for conversion of colors in a color space having three channels to colors in another color space. The method includes generating sequences and generating lattice points. The generating sequences generates three van der Corput sequences in which the number of terms is equal to a quotient obtained by subtracting a specified number from a maximum number of lattice points allocatable to the color conversion table and dividing the difference by 12 or 6, and whose basis is a positive integer greater than or equal to 2. The generating lattice points generates lattice points each located at coordinates including terms in the same ordinal number out of the three respective van der Corput sequences for six possible associations of the three van der Corput sequences with the three channels.

Abstract: A color gamut cross-section acquiring method for acquiring a cross-section of a color gamut of an image forming apparatus taken on a specific plane includes: acquiring color gamut boundary line segments; acquiring intersection points between the color gamut boundary line segments and the specific plane; acquiring a shortest possible route passing through each of the intersection points exactly once; acquiring each of line segments making up the route as a provisional cross-section boundary line segment; acquiring a set of verification line segments by connecting intersection points between the color gamut boundary line segments and a plane intersecting with the provisional cross-section boundary line segment at a point other than the endpoints of the provisional cross-section boundary line segment; and acquiring the provisional cross-section boundary line segment as a cross-section boundary line segment if the provisional cross-section boundary line segment intersects with the set of verification line segment

Abstract: This is a method for obtaining a cross-section of a color gamut of an image forming apparatus by slicing the color gamut along a plane. This method includes the steps of obtaining gamut boundary line segments, obtaining cross-section boundary line segments, and obtaining endpoints. The gamut boundary line-segment obtaining step is to obtain gamut boundary line segments serving as baseline segments of a boundary of the color gamut. The cross-section boundary line-segment obtaining step is to obtain cross-section boundary line segments serving as baseline segments of a boundary of the cross-section. The endpoints obtained in the endpoint obtaining step are points of intersection of the gamut boundary line segments and the plane. The cross-section boundary line segments obtained in the cross-section boundary line-segment obtaining step are line segments making up a route that is the shortest route passing through all the endpoints only once.

Abstract: An image processing apparatus in the present disclosure includes a color conversion processing unit, a modulation candidate creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation candidate creating unit creates, as modulation candidates, combinations of integer values obtained by rounding up or down the decimal fraction of each color component of a tentative output color value. The color value modulating unit selects a modulation candidate at random and performs modulation by replacing the tentative output color value with the selected modulation candidate. The output unit outputs the target image according to the color value obtained after the modulation.

Abstract: The present invention provides an electric propulsion system control apparatus that uses electric means alone so that effects pertaining to weight and cost are suppressed, is capable of accurate detection even when an airspeed has a binary relationship with a torque and a rotation speed of a propeller, and thereby exhibits improved detection precision and responsiveness. The electric propulsion system control apparatus drives a propulsion propeller to rotate, and is configured to estimate the airspeed from a data set stored in advance in relation to the airspeed and a propeller characteristic, and a plurality of torque and rotation speed estimation values detected under different driving conditions.

Abstract: An image processing apparatus includes a color conversion processing unit, a modulation difference creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation difference creating unit creates modulation differences. The modulation differences include combinations that are obtained by either setting or not setting a value equivalent to the minimum resolution of the tentative output color value for each color component of the tentative output color value. The color value modulating unit performs modulation on the tentative output color value by adding or subtracting a modulation difference selected at random to or from the tentative output color value. The output unit outputs the target image according to the color value obtained after modulation.

Abstract: The present invention provides an electric propulsion system control apparatus that uses electric means alone so that effects pertaining to weight and cost are suppressed, is capable of accurate detection even when an airspeed has a binary relationship with a torque and a rotation speed of a propeller, and thereby exhibits improved detection precision and responsiveness. The electric propulsion system control apparatus drives a propulsion propeller to rotate, and is configured to estimate the airspeed from a data set stored in advance in relation to the airspeed and a propeller characteristic, and a plurality of torque and rotation speed estimation values detected under different driving conditions.

Abstract: A color conversion program including a grid point arranging part which arranges, between an input device represented by three values of RGB and four values of CMYK, grid points as correspondence of the RGB value of the input device and the CMYK value of the output device in a radial direction from a prescribed achromatic color axis to generate a radial color conversion table; and a color conversion table restructuring processing part which stacks, in the order of hue, a hue layer consisting of a surface of a hue and a surface of its complementary hue of the radial color conversion table to generate an orthogonal grid color conversion table in which the grids form an orthogonal grid.

Abstract: An image processing apparatus in the present disclosure includes a color conversion processing unit, a modulation candidate creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation candidate creating unit creates, as modulation candidates, combinations of integer values obtained by rounding up or down the decimal fraction of each color component of a tentative output color value. The color value modulating unit selects a modulation candidate at random and performs modulation by replacing the tentative output color value with the selected modulation candidate. The output unit outputs the target image according to the color value obtained after the modulation.

Abstract: An image processing apparatus includes a color conversion processing unit, a modulation difference creating unit, a color value modulating unit, and an output unit. The color conversion processing unit performs color conversion from an input color value of a target image to a corresponding output color value to obtain a tentative output color value. The modulation difference creating unit creates modulation differences. The modulation differences include combinations that are obtained by either setting or not setting a value equivalent to the minimum resolution of the tentative output color value for each color component of the tentative output color value. The color value modulating unit performs modulation on the tentative output color value by adding or subtracting a modulation difference selected at random to or from the tentative output color value. The output unit outputs the target image according to the color value obtained after modulation.

Abstract: Provided is an image forming apparatus including a reference image generating unit and a toner usage evaluation unit. The reference image generating unit is configured to convert a subject image into a reference image having a data amount smaller than the subject image. The toner usage evaluation unit is configured to obtain a usage of toner for printing the subject image based on the reference image.

Abstract: An image forming apparatus is configured to control the density of an output image based on an inherent gamma characteristic of the apparatus. The apparatus includes a patch image forming unit that forms patch images having multiple gradation values, a measuring unit that measures the density or lightness of each patch image, a sample point arrangement unit that arranges sample points representative of measured density or lightness values in a descending or ascending order of the gradation values, an inflection point region detecting unit that detects any specific inflection point region, a straight line region detecting unit that detects any specific straight line region, an interpolating unit that interpolates by adding and/or deleting a specific sample point depending upon whether (i) an inflection point region is detected, (ii) a straight line region is detected, or (iii) neither an inflection point region nor a straight line region is detected.

Abstract: A recording medium includes a substrate having a microscopic pattern, which includes a shape of continuous substance of approximately parallel grooves formed with a convex shaped section and a concave shaped section alternating on a surface of the substrate. A recording layer is formed on the microscopic pattern and a light transmitting layer has a thickness of 0.05 mm to 0.12 mm formed on the recording layer. The microscopic pattern satisfies a relation of P??/NA, wherein P is a pitch of the convex shaped section, ? is a wavelength of a reproducing light beam and NA is a numerical aperture of an objective lens. The microscopic pattern also includes modulated address information formed on both side walls of the convex shaped section viewed from the light transmitting layer as a wobble, both the side walls being parallel to each other, and furthermore wherein the address information is modulated by the phase-shift keying modulation system.

Abstract: A recording medium includes a substrate having a microscopic pattern, which includes a shape of continuous substance of approximately parallel grooves formed with a convex shaped section and a concave shaped section alternating on a surface of the substrate. A recording layer is formed on the microscopic pattern and a light transmitting layer has a thickness of 0.05 mm to 0.12 mm formed on the recording layer. The microscopic pattern satisfies a relation of P??/NA, wherein P is a pitch of the convex shaped section, ? is a wavelength of a reproducing light beam and NA is a numerical aperture of an objective lens. The microscopic pattern also includes modulated address information formed on both side walls of the convex shaped section viewed from the light transmitting layer as a wobble, both the side walls being parallel to each other, and furthermore wherein the address information is modulated by the phase-shift keying modulation system.

Abstract: A recording medium includes a substrate having a microscopic pattern, which includes a shape of continuous substance of approximately parallel grooves formed with a convex shaped section and a concave shaped section alternating on a surface of the substrate. A recording layer is formed on the microscopic pattern and a light transmitting layer has a thickness of 0.05 mm to 0.12 mm formed on the recording layer. The microscopic pattern satisfies a relation of P??/NA, wherein P is a pitch of the convex shaped section, ? is a wavelength of a reproducing light beam and NA is a numerical aperture of an objective lens. The microscopic pattern also includes modulated address information formed on both side walls of the convex shaped section viewed from the light transmitting layer as a wobble, both the side walls being parallel to each other, and furthermore wherein the address information is modulated by the phase-shift keying modulation system.

Abstract: A recording medium includes a substrate having a microscopic pattern, which includes a shape of continuous substance of approximately parallel grooves formed with a convex shaped section and a concave shaped section alternating on a surface of the substrate. A recording layer is formed on the microscopic pattern and a light transmitting layer has a thickness of 0.05 mm to 0.12 mm formed on the recording layer. The microscopic pattern satisfies a relation of P??/NA, wherein P is a pitch of the convex shaped section, ? is a wavelength of a reproducing light beam and NA is a numerical aperture of an objective lens. The microscopic pattern also includes modulated address information formed on both side walls of the convex shaped section viewed from the light transmitting layer as a wobble, both the side walls being parallel to each other, and furthermore wherein the address information is modulated by the phase-shift keying modulation system.

Abstract: A recording medium includes a substrate having a microscopic pattern, which includes a shape of continuous substance of approximately parallel grooves formed with a convex shaped section and a concave shaped section alternating on a surface of the substrate. A recording layer is formed on the microscopic pattern and a light transmitting layer has a thickness of 0.05 mm to 0.12 mm formed on the recording layer. The microscopic pattern satisfies a relation of P??/NA, wherein P is a pitch of the convex shaped section, ? is a wavelength of a reproducing light beam and NA is a numerical aperture of an objective lens. The microscopic pattern also includes modulated address information formed on both side walls of the convex shaped section viewed from the light transmitting layer as a wobble, both the side walls being parallel to each other, and furthermore wherein the address information is modulated by the phase-shift keying modulation system.

Abstract: An optical disc has a support base and at least one information-retrieval layer formed over the support base. The information-retrieval layer is transparent and thinner than the support base. The information-retrieval layer exhibits variation in birefringence within ±20 nmpp (nano meter peak to peak) under double-pass measurements during one rotation of the optical disc.

Abstract: An image forming apparatus is configured to control the density of an output image based on an inherent gamma characteristic of the apparatus. The apparatus includes a patch image forming unit that forms patch images having multiple gradation values, a measuring unit that measures the density or lightness of each patch image, a sample point arrangement unit that arranges sample points representative of measured density or lightness values in a descending or ascending order of the gradation values, an inflection point region detecting unit that detects any specific inflection point region, a straight line region detecting unit that detects any specific straight line region, an interpolating unit that interpolates by adding and/or deleting a specific sample point depending upon whether (i) an inflection point region is detected, (ii) a straight line region is detected, or (iii) neither an inflection point region nor a straight line region is detected.