Abstract:
PURPOSE:To carry out the automatic regulation of the regulation element such as a variable resistor, which has no insertion hole vertical to the substrate surface at a low cost, and to regulate it even when the regulation element is at a various different position of the substrate. CONSTITUTION:A rotary actuator 7a is fixed to a carriage 6c which moves on the Y table 6c of an XY table, a rectilinear actuator 7d is installed to the rotary actuator 7a, and a driver 7g is installed to the rectilinear actuator 7d. A regulation element which has an insertion hole vertical to a substrate surface carries out the regulation under such a condition. A regulation element which has an insertion hole parallel to the substrate surface carries out the regulation of the regulation element by driving the rotary actuator 7a to rotate 90 deg., then driving the rectilinear actuator 7d so as to insert a bit 7k to the insertion hole. Or, the first regulation mechanism which has a rectilinear actuator vertical to the substrate, and slides the driver making its axial direction in the same direction; and the second regulation mechanism which has a rectilinear actuator vertical to the substrate, and slides the driver making its axial direction parallel to the substrate; may be provided to the carriage 6d.
Abstract:
PURPOSE:To perform high-speed and accurate level decision of the magnetic reproduction waveform. CONSTITUTION:A level decision device 1 for magnetic reproduction waveform is composed of a comparison circuit 5 and a slice level decision part 6. In the slice level decision part 6, a signal SI indicating the peak value of the reproduction waveform is digitized by an A/D converter 7 and transferred to a DSP (digital signal processor) 8. In this case, the pipeline processing is performed for each 128 waveform peak values and the average movement value is calculated. The two slice levels are calculated by multiplying the prescribed coefficient by the multipliers 9H and 9L of the poststage and analogized by D/A converters 10H and 10L to be transmitted to the comparison circuit 5 as a reference level associated with the decision of the reproduction level.
Abstract:
PURPOSE:To adjust the mounting position of an optical head with high accuracy, by obtaining a phase difference between the output signals of a photodetector which receives reflected light from two tracking spots, and setting the polarity of a phase difference output signal at a constant level in spite of the decentering of an optical disk. CONSTITUTION:In a state where a tracking control loop is opened, the phase difference between the output voltages of photodiodes 1 and 2 which receive the reflected light from the tracking spot is detected by a phase detector 8. Also, the phase difference between the output signal of a photodiode 3 which receives the reflected light from a main spot and the tracking error voltage obtained from the output voltages of the photodiodes 1 and 2, is detected, then, a direction in which a track crosses two tracking spots is detected. Therefore, it is possible to obtain a phase difference output voltage having a constant polarity even when the phase difference of the output voltages outputted from the photodiodes 1 and 2 is set at an arbitrary value without limiting it at 180 deg.. In such a way, the position adjustment of the optical head can be performed easily by referring to the phase difference output voltage.
Abstract:
PROBLEM TO BE SOLVED: To achieve further downsizing and cost reduction of a composite tuner module in which a plurality of television tuners are mounted.SOLUTION: A receiver comprises: a first input terminal to which a first broadcast signal is inputted; a second input terminal to which a second broadcast signal is inputted; a first distribution circuit which distributes the inputted first broadcast signal to at least two high frequency processing sections; a second distribution circuit which distributes the inputted second broadcast signal to the at least two high frequency processing sections; a first high frequency processing section to which the first broadcast signal from the first distribution circuit or the second broadcast signal from the second distribution circuit is supplied, and which performs predetermined frequency conversion processing according to the first or second broadcast signal; and a second high frequency processing section to which the first broadcast signal from the first distribution circuit or the second broadcast signal from the second distribution circuit is supplied, and which performs the predetermined frequency conversion processing according to the first or second broadcast signal.
Abstract:
PROBLEM TO BE SOLVED: To obtain accurate reconstituted images by a computer tomographic imaging method with a simple constitution. SOLUTION: An X-ray tomographic imaging device reconstituting the inner structure data of an inspection object 3 from a plurality of projection data of the inspection object 3 comprises: an X-ray source 1; a two-dimensional detection means 4 imaging the transmission X-rays through the inspection object 3; a rotation mechanism arranged between the X-ray focus 1a of the X-ray source 1 and the two-dimensional detecting means 4 and rotated in the predetermined angular displacement centering around the rotation axis R2 which is almost parallel to the line connecting the center of the bottom face of a cone, mounting the inspection object 3 and being formed by X-rays emitted from the X-ray source 1, and the X-ray focus; and a holding means holding the inspection object 3 to be in contact with the conical face 10 of a virtual cone which has a vertex angle of a predetermined angle with the rotation axis R2 as a central line with respect to the rotation axis R2. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To make the picture quality measuring instrument small-sized and inexpensive by arranging an illumination light source which lights a color display device nearby a color video camera so that the screen of the color display device is lit from right opposite it. SOLUTION: When the color display device 1 comes to right before the color video camera 2, a switch 11 is turned on under the control of a CPU 6 and the illumination light source 4 turns on. The camera 2 clearly picks up an image of the bezel edge of the cabinet of the device 1 lit by the light source 4 and stores it in a frame memory 5B. The CPU 6 reads the image of the bezel edge out of the memory 5B and calculates and stores its position in the memory of the CPU 6. After the light source 4 is turned off, the device is powered on and a pattern signal for image distortion measurement is supplied from a signal generating device 12 to the device 1 to project a pattern for measurement on the screen of a cathode-ray tube. Then the CPU 6 measures image distortion on the basis of the position of the bezel edge of the device 1.
Abstract:
PURPOSE:To miniaturize a device, to evade the influence of external noise and to surely enable a high speed signal transmission by having a constitution that a signal processing unit performs an information transmission via each optical coupler and an optical fiber. CONSTITUTION:The one optical coupler 5 of a first external recording device 1 is connected with the one optical coupler 5 of a second external storage device 2 via an optical fiber 4. The other optical coupler 5 of a second external recording device 2 is connected with the one optical coupler 5 of a third external recording device 3 via the optical fiber 4. Further, a signal processing unit 6 is connected with a memory 7 to be a storage element. This memory 7 performs the delivery and reception of an information signal with the signal processing unit 6 via an external memory interface. The power supply required for the holding of storage is always supplied to this memory 7 by a battery 11 to be the power source part of the external recording devices 1 to 3. Each signal processing unit 6 performs an information transmission via the optical coupler 5 and the optical fiber 4.
Abstract:
PURPOSE:To provide an audio signal analyzing device in which a high speed signal analysis is performed without depending on frequency. CONSTITUTION:Input audio signals are digitized by an A/D converter 3 employing the oscillation output of a synchronizing circuit 2 which is synchronized to the input audio signals and oscillates with the frequency, that is element number multiple of an FFT analysis, as a sample clock. The FFT analysis is performed relative to the input audio data obtained by the converter 3 by a digital signal processing section 4.
Abstract:
PURPOSE:To facilitate the assembly and widen the diffusion range of light without using a reflecting plate by arranging side view type light emission diodes, which emit light in parallel to their fitting surfaces so that they face in target light emission directions. CONSTITUTION:At the entire circumferential edge part of a discoid substrate 3, couples of lead insertion holes are formed at equal distance intervals. Each pair of lead insertion holes are formed so that the line connecting both the holes is perpendicular to a radial direction of the substrate 3, and the side view type light emitting diodes 4 are fitted in the respective pairs of lead insertion holes. Further, the reverse surfaces of diode main bodies 4a are constituted as fitting surfaces 4c and two lead parts are projected downward from each fitting surface 4c. Namely, The side view type light emitting diodes 4 emit light in parallel to the fitting surfaces 4c. Then the signal lamp A is so constituted that the respective light emitting diodes 4 face in different directions at equal intervals and emit light in the directions.
Abstract:
PURPOSE:To provide an optical disk device where an optical pickup is satisfactorily controlled with a simple servo mechanism. CONSTITUTION:The optical disk device is provided with a first detecting means 3a which detects the focus state of a laser beam thrown to a disk 1, a second detecting means 3b which detects inclination of the disk 1, and a mixing means 6 which mixes error signals outputted from both detecting means 3a and 3b in a prescribed ratio. Optical pickup drive means 9 and 10 (servo control 9 and tilt servo motor 10) are provided and driven based on error signals mixed by the mixing means 6.