Abstract:
The image reading device has a moving mechanism by which a stage, supporting a read object in which a color image is recorded, is intermittently moved so that the color image is read by a line sensor. In a stopping operation during the intermittent movement, the stage passes slightly over the stop position, and then reverses. Thus, the stage oscillates about the stop position. Substantially simultaneously with the stopping operation, i.e., while the stage is still oscillating, a blue light-emitting diode is turned ON, so that B pixel data is sensed by the line sensor. During this sensing operation of the B pixel data, the oscillation of the stage is fully damped. Then, the B light-emitting diode is turned OFF, and a red light-emitting diode is turned ON, so that R pixel data is sensed. Then, the R light-emitting diode is turned OFF, and a green light-emitting diode is turned ON, so that G pixel data is sensed.
Abstract:
An operation control device is provided in an electro-developing type camera using a recording medium which electronically develops an image formed by a photographing optical system. An electric charge in a battery is sensed. When the electric charge remaining in the battery is lower than a second threshold value, which is lower than a first threshold value, the recording operation is prohibited. When the electric charge remaining in the battery is lower than the first threshold value and higher than the second threshold value, the recording operation is permitted and the reading operation is prohibited. Accordingly, during the reading operation, the electric charge remaining in the battery cannot become lower than the first threshold value, and thus the reading operation can be carried out.
Abstract:
A bearing mount assembly is installed in opposed relation to a roll support frame with the pass line interposed therebetween, the bearing mount assembly being provided with bearings capable of removably supporting the front ends of roll shafts carried on the roll support frame. In roll exchange operation, the bearing mount assembly is moved away from the roll support frame and has its bearings removed therefrom, whereupon the bearing mount assembly is turned from this raised position to a flat position to provide a roll exchange operation space defined above the bearing mount assembly, making it possible to effect roll exchange operation.
Abstract:
An image signal recording device in which one frame is divided into an upper half frame and a lower half frame by a straight line parallel to horizontal scanning lines forming the frame. In the upper half frame, image signals of a first field are recorded in horizontal scanning lines from 22H through 262H, and image signals of a second field are recorded in horizontal scanning lines from a mid portion of 284H through 525H. In the lower half frame, image signals of the first field are recorded in horizontal scanning lines from 22H through a mid portion of 263H, and image signals of the second field are recorded in horizontal scanning lines from 285H through 525H.
Abstract:
An apparatus and method for measuring at least one desired motor constant applicable to an equivalent circuit of the induction motor according to the present invention utilizes a vector controlled speed variable apparatus for the induction motor. After the input and output parameters of the induction motor are measured, the apparatus calculates and measures the desired motor constant using a corresponding equation. For example, the secondary circuit time constant is calculated using the following equation. That is to say,.tau..sub.2 .apprxeq..tau..sub.2q * and V.sub.1q *(t)=(V.sub.1q *).sub.+0.exp(-(1/.tau.2q*).t)wherein (V .sub.1q *).sub.+ denotes a control q-axis primary voltage component immediately after torqu and excitation current instructions have been changed to zero and output from a current control system (ACR), V.sub.1q *(t) denotes a time function of V.sub.1q * at each sampling period after the current instructions have been changed in the stepwise manner to zero.
Abstract:
A vector control system of an induction motor using the slip frequency control method comprises means for minimizing an error with regard to compensation for variation of a secondary resistance.
Abstract:
A liquid crystal display device comprising a liquid crystal cell including a pair of substrates each having an alignment film on the surface thereof, and a liquid crystal filled in a space between the substrates, which is provided with a plurality of alignment regions, each region having the direction of alignment or the rise direction of liquid crystal molecule different from another region within a display region. The alignment film comprises a polyimide having a glass transition point of 300.degree. to 400.degree. C., a skeleton having no two-revolution axis, non-conjugated carbon occupying 10 to 60% of the total number of carbon excluding carbon atoms directly connected to imido group, a relative dielectric constant of 4 to 7 at a frequency of 1 kH and at a temperature of 20.degree. C., or an imidization degree of not less than 90%, or a polyimide obtained by reacting tetracarboxylic acid di-anhydride with a di-amine compound, or a polyimide obtained by imidizing a polyimide, the tetracarboxylic acid di-anhydride moiety being prohibited of the free rotation thereof.
Abstract:
A material for producing far-infrared radiation is disclosed. The material comprises a substrate and an Al--Mn alloy-derived oxide surface layer on the substrate, the oxide surface layer being porous with an average pore diameter of 0.01-2.0 micrometers and a porosity of 10.sup.3 -10.sup.12 pores/cm.sup.2, the weight ratio of Mn/Al of the oxide surface layer being 0.001-2.0, and the thickness of the oxide surface layer being 0.1-100 micrometers.
Abstract:
An emergency braking system for a vehicle driven by an electric motor. The vehicle includes a manually operable accelerator lever, a displacement detector for detecting displacement of the accelerator lever, an emergency detector disposed in a region of the accelerator lever for detecting an operating force applied to the accelerator lever, a braking device, and a control unit for receiving detection signals from the displacement detector and emergency detector, and outputting control signals to the electric motor and braking device. The control unit outputs the control signal to the braking device to brake the vehicle when the operating force detected by the emergency detector exceeds a predetermined value. In addition or as alternative to the emergency detector, the vehicle may include an emergency detector disposed in a driver's foot rest region for detecting a treading force of the driver.
Abstract:
An image recording apparatus includes a lamp, a CCD array, an image density adjustor, first and second shutter drivers, first and second shutters, an image area discriminating circuit, and a microcomputer. The lamp illuminates an image and retrieval information of a microfilm having the image and the retrieval information at the side of the image. The CCD array receives light from the image and the retrieval information on the microfilm illuminated by the lamp. The image density adjustor, first and second shutter drivers, and first and second shutters cooperate with each other to record the image of the microfilm on a recording medium. The image area discriminating circuit discriminates the image from the retrieval information according to an output from the CCD array. The microcomputer controls the image density adjustor and the first and second shutter drivers so as not to record the retrieval information on the recording medium according to an output from the image area discriminating circuit.