baber/WOPTO huggingface dataset:
Patent JP-S6287000-A (JP)
Title: Low distortion speaker device
Inventor: KAWAMURA AKIHISA
IPC: H04R3/04
Filed: 1985-10-14
Abstract: PURPOSE:To obtain the sufficient distortion decreasing effect even when the speaker is at any position by measuring the impedance characteristic of the speaker, adjusting the impedance characteristic of the impedance equivalent device so as to come to be the impedance characteristic equal to the measured impedance value and feeding back the distortion component only in a negative way by the comparator. CONSTITUTION:The impedance of a speaker 7 is measured. The terminal connected by a changing-over switch is set to an A side, and the signal for measuring the impedance is added. For the impedance measuring signal, the sine wave is used. The driving electric current to flow at a speaker 6 is detected as the terminal voltage of an electric current detecting device 8, the voltage value is measured by an impedance measuring circuit 10 and the impedance is obtained. The impedance of the speaker is changed by the setting position of the speaker.
Patent JP-H0758018-A (JP)
Title: Semiconductor crystal growth apparatus
Inventor: MATSUO NOZOMI
IPC: H01L21/205
Filed: 1993-08-20
Abstract: PURPOSE:To provide a semiconductor crystal growth apparatus which can be safely and stably operated for a long period. CONSTITUTION:A semiconductor crystal growing apparatus comprises a preliminary chamber 2 adjacent to a reaction furnace 1, and a wafer conveying passage 4 having a slice valve 3 for coupling the furnace 1 to the chamber 2, wherein an in-reaction furnace gas exhaust pipeline 8 for discharging raw material gas via a process pump 9, a filter 14 and a toxicity removing cylinder 15 is arranged in the furnace 1. Further, a gas sensor 18 for sensing toxic gas in the chamber and an exhaust pipeline 12 for evacuating in vacuum the chamber 2 via a vacuum pump 11 are arranged in the chamber 2. A branched line 23 having a connecting valve 13 for connecting both the exhaust pipelines is provided between an intermediate part of the pump 11 of the pipeline 12 and a regulating valve 16 provided at its downstream and an intermediate part of the pump 9 of the pipeline 8 and the filter 14.
Patent JP-H04111618-A (JP)
Title: Doppler shift compensation circuit
Inventor: SUZUKI SHOICHI
IPC: H04B7/155
Filed: 1990-08-31
Abstract: PURPOSE:To eliminate the effect of Doppler shift by controlling a transmission frequency depending on frequency fluctuation of a received radio wave. CONSTITUTION:An input RF signal is mixed with an oscillating frequency from a local oscillator 12 at a frequency mixer 11 and converted into an intermediate frequency signal, an amplified intermediate frequency signal from an intermediate frequency amplifier 13 is fed to a carrier recovery circuit 14, in which the carrier is recovered. The intermediate frequency signal is multiplied with the recovered carrier at a synchronization detector 15, in which synchronization detection is implemented and a base band output signal is obtained. The recovered carrier is fed to a frequency counter 18, which counts the frequency and the result is fed to a local oscillator 20 via a D/A converter 19 as a frequency control voltage and it is used to control the oscillation frequency of the oscillator 20 so that a frequency change with an opposite polarity attended with a frequency change in the recovered carrier is obtained. A base band signal input is modulated by a modulator 16 and fed to a frequency mixer 21 via an intermediate frequency amplifier 17, in which the signal is mixed with the oscillating frequency from the local oscillator 20 and the result is outputted as an RF signal and sent thereby eliminating the Doppler effect.
Patent JP-H0543351-A (JP)
Title: Production of cement product
Inventor: SHIBATA YOSHIHIRO
IPC: C04B40/00
Filed: 1991-08-12
Abstract: PURPOSE:To produce cement products having different color tones by controlling the curing condition when curing and hardening a wet mortar prepared by adding water to a mixture of cement, an aggregate and a colorant and subsequently poured into a mold. CONSTITUTION:An aggregate such as river sands is mixed with cement in a weight ratio of (3:7)-(5:5) and a color pigment such as titanium white or carbon black is further added thereto. A prescribed amount of water is added thereto and the resultant mixture is kneaded to obtain a wet mortar. The obtained wet mortar is poured into a prescribed-shape mold, cured and hardened. By controlling the curing condition of the wet mortar within a range of 15-40 deg.C curing temperature, >=80% curing humidity on relative humidity(RH) base and 16-60hr curing time, the color tone of cement products can be freely changed and cement products having a color tone uniform over the whole body and free from dispersion of color tone can be obtained.
Patent JP-H0276758-A (JP)
Title: Image formation device
Inventor: UCHIYAMA MASAJI
IPC: H04N1/23
Filed: 1988-09-14
Abstract: PURPOSE:To make possible the reproduction of an intermediate tone image with a simple configuration by controlling the optical intensity of a beam based on the bit position of bit information when the beam is used for scanning in accordance with the bit information stored in a storage device. CONSTITUTION:If the content of a line memory 3 is output to a laser driver 6 through a switching circuit 5 by the first BD signal which is output from a beam detector, an electric current suited to the density level of 2<1>(=2) is output to a laser unit 7 by the laser driver. On the contrary, if the content of the line memory 4 is output to the laser driver 6 by the second DD signal, a laser beam 87 corresponding to the density level of 20(=1) generates. Subsequently, the output pixel with a gradation (density level) of 4 to 0 is formed as shown by 22 to 25.
Patent JP-S6472650-A (JP)
Title: System for monitoring data transmission quality
Inventor: MATSUI HITOSHI
IPC: H04L27/38
Filed: 1987-09-14
Abstract: PURPOSE:To easily observe to what extent a random noise or a jitter effects in an amplitude direction and phase direction for the amplitude of a signal point by separating the deviation between the signal before decided with a decision device and the signal after the decision at every signal point in the amplitude direction and the phase direction, and taking their mean squares. CONSTITUTION:A deciding means 3 to output a deciding signal indicating a decision value on a complex plane, an amplitude deviation detecting means 6 to output an amplitude deviation signal proportional to the amplitude element of the deviation between the deciding signal and a complex signal, a phase deviation detecting means 7 to output a phase deviation signal proportionate to the phase element of the deviation between the deciding signal and the complex signal, and an averaging means 8 to calculate the mean square values of an amplitude deviation signal and the phase deviation signal, and a means 9 to output the signal corresponding to the size of the amplitude of the deciding signal are provided. Thus, it can easily be observed on the screen of an oscilloscope that to what extent the random noise and the jitter affect the amplitude of the signal point in the amplitude direction and the phase direction.
Patent JP-H0670866-A (JP)
Title: Vacuum clener
Inventor: DOI KENICHIRO
IPC: A47L9/32
Filed: 1992-08-27
Abstract: PURPOSE:To provide a dust collecting cover without deteriorating suction force of a cleaner main body, and to improve assembly workability by inserting and holding supporting shafts formed integrally in the dust collecting cover by the cleaner main body and a cover. CONSTITUTION:In a supporting arm 4 provided in the rear end of a dust collecting cover 3, supporting shafts 5, 6 are formed integrally toward the inside and the outside, respectively. The supporting shafts 5, 6 of the dust collecting cover 3 are placed in a supporting rib 7 formed in a cleaner main body case and a cover 8 is fixed, and between the supporting rib 7 of the cleaner main body case and an inserting/holding part 9 of the cover 8, the supporting shafts 5, 6 are inserted and held so as to be freely turnable. In such a way, the arm 4 of the dust collecting cover 3 is assembled without deforming it, and assembly workability can be improved. Also, an arm 14 of a containing part cover 11 is detained to the inside supporting shaft 5 of the dust collecting cover 3, a handle 15 is fitted to the supporting shafts 5, 6 and the arm 14 is inserted and held between the supporting shaft 5 and the handle 15. Accordingly, since the dust collecting cover can be provided without forming a hole in the cleaner main body case, it can be prevented that the open air flows into the cleaner main body and suction force is deteriorated.
Patent JP-S60121578-A (JP)
Title: Tracking controller
Inventor: MORIYA MITSUROU
IPC: G11B21/10
Filed: 1983-12-02
Abstract: PURPOSE:To control against the oscillation or the impact which is applied from the outside and to improve reliability of a device by adding the signal of a disturbance detection means to a shifting means. CONSTITUTION:When the whole device has the outer oscillation or the impact in the radius direction of a recording carrier 1, the recording carrier 1 fluctuates by uniting with a frame 25. The movable part of a linear motor 16 which includes a shifting stand 15 receives the inertia force. Therefore, the acceleration which is given from the outside is detected by acceleration detector 24, the signal is given to the linear motor 16, and the inertia force is cancelled. Then, the shifting stand 15 moves by uniting with the frame 25. When the frame 25 and the shifting stand 15 move together as one unit, the movable part of a control element 14 which includes a convergent lens 9 receives the inertia force in the same way. Therefore, if the signal of the acceleration detector 24 is given to the tracking terminal of the control element 14, and the inertia force is cancelled, the convergent lens 9 is united with the frame 25, and they move. Therefore, the track dislocation or the track skipping does not occur.
Patent JP-H08129299-A (JP)
Title: Developing device
Inventor: HIRATA HIROSHI
IPC: G03G15/09
Filed: 1994-08-30
Abstract: PURPOSE: To effectively avert the trouble accompanying the build-up of a developer at the ends of a developer carrying member even if plural developing magnetic poles are arranged from the position of a developer layer thickness regulating member to the end of an effective development region and the pitch between magnetic poles is narrowed. CONSTITUTION: The developer carrying member 1 of this developing device is composed of a rotatable nonmagnetic sleeve 2 and a magnet member 3 which is fixedly installed in this sleeve 2 and is arranged with the plural magnetic poles 6 along the rotating direction of the sleeve 2. The developing device develops the electrostatic latent image formed on a latent image carrying member 4 by the two-component developer G regulated in the layer thickness by the layer thickness regulating member 5 within a range of the effective development region m of the developer carrying member 1 facing the latent image carrying member 4.  At least one of the magnetic poles 6 existing in the range from the position of the layer thickness regulating member 5 to the end of the effective development region m of the developer carrying member 1 is formed as the excessive size magnetic pole 6a which is larger than the permissible development width d of the developer carrying member 1 and of which the ends are arranged to project outward from both end positions of the permissible development width d.
Patent JP-2001025911-A (JP)
Title: Manufacture of curved optional shape
Inventor: ISHIDA JIRO
IPC: B23C3/00
Filed: 1999-07-09
Abstract: PROBLEM TO BE SOLVED: To precisely manufacture a plurality of curved materials at a low cost in a short time by mounting a recessed curved material manufactured by use of a protruding curved surface die on a different protruding curved surface die to grind it again into an optional shape. SOLUTION: In the manufacture of a work part such as a high hardness curved thin plate for ball bearing or roller bearing, a material to be worked is directly or indirectly mounted on a die 2A having a protruding curved surface at least on one side by a bolt 5 in the state where it is closely fitted according to the curved surface of the die. The surface (side surface) orthogonal to this surface is cut 1H into an optional shape such as V-shape, semicircular shape or rectangular shape by use of a machine tool such as milling machine, planing machine, shaping machine or the like. Thereafter, the material to be worked is removed from the die, and mounted on a different protruding curved surface die to grind it again into an optional shape, whereby a work part having the optional form can be provided.
Patent JP-2000056293-A (JP)
Title: Method for driving ferroelectric liquid crystal display
Inventor: TAKAHASHI SUZUTARO
IPC: G09G3/36
Filed: 1998-08-13
Abstract: PROBLEM TO BE SOLVED: To eliminate a reset period which is the cause of flicker and makes a scanning period redundant and to realize driving by a bipolar pulse having the same polarity order by making scanning side voltage, signal side voltage, rise (fall) start voltage and rise (fall) completion voltage satisfy specified conditions. SOLUTION: The rise start voltage +Vme is the maximum voltage value that can hold a dark state, the fall start voltage -Vme is the minimum voltage value that can hold a bright state, the rise completion voltage +Vsw is the minimum voltage value to transit the dark state to the bright state, and the fall completion voltage -Vse is the maximum voltage value to transit the bright state to the dark state. The scanning side voltage applied to n-th and (n+1)th scanning electrodes during a selection period is the two-phase bipolar pulse whose waveheight values are ±Vr, and is set to satisfy |Vr|>=|Vsw|.  The signal side voltage to display a pixel on a scanning electrode line to be bright and dark is the two-phase unipolar pulse whose waveheight values are Vc and Ov and is set to satisfy |Vr|-|Vc|<=|Vme| and |Vc|<=|Vme|.
Patent JP-H0781932-A (JP)
Title: Production of ceric oxide
Inventor: MATSUKURA MINORU
IPC: C01F17/00
Filed: 1993-09-14
Abstract: PURPOSE:To easily obtain the white tone ceric oxide having high specific surface area, low in reduction of the specific surface area under high temp. by baking monooxy cerium carbonate obtained by subjecting to moisture and heat treat ment cerium carbonate. CONSTITUTION:Cerium carbonate is put in a constant temp.constant humidity vessel or the drying vessel, etc., introduced steam, and is subjected to moisten and heat-treatment within the temp. range of 60-100 deg.C, under the high humidity of >=80% relative humidity and for >=i hour, and acicular or spherical monooxy cerium carbonate is obtained. Them, the monooxy cerium carbonate is burnt at 300-650 deg.C for 1-4 hour to produce the ceric oxide having >=140m<2>/g specific surface area.
Patent JP-H04111585-A (JP)
Title: Projection television receiver
Inventor: IKEGAMI KEISUKE
IPC: H04N5/74
Filed: 1990-08-30
Abstract: PURPOSE:To prevent from damaging eyes by detecting a man in movement or the like is entered from the optical system of a projector to the projection area to a screen. CONSTITUTION:Transmitting/receiving light detectors 22a and 22b of the nonvisible light of infrared ray or the like exerting no affect on video projection light are arranged on the side where a lens 2 for projection of a case 22 of a liquid projector 20 is arranged to emit the nonvisible light in the direction of reflection members 21a and 21b. When detecting a man is entered in the area between the lens 2 for projection and a screen 1, the detection output is amplified while supplied to amplification circuits 17a and 17b, a shielding state is detected in detection circuits 18a and 18b to be supplied to a light control circuit 19. The light control circuit 19 controls a light source driving circuit 30 to turned to be an OFF state or to reduce light of a light source 3 according to the detection output. Thus, the damage to the eyes can be prevented.
Patent JP-S60121288-A (JP)
Title: Electrolyzing method
Inventor: KIYOTA TOORU
IPC: C25B1/46
Filed: 1983-12-06
Abstract: PURPOSE:To carry out stable electrolysis without producing abnormal high voltage by dividing an electrolytic cell into anode and cathode chambers with an F-contg. anion exchange membrane of a copolymer consisting of repeating units represented by a specified general formula and by keeping a soln. in the anode chamber acidic. CONSTITUTION:When an electrolyte is electrolyzed in an electrolytic cell divided into anode and cathode chambers with an anion exchange membrane, the membrane is made of a copolymer consisting of repeating units represented by the general formula (where X is F or trifluoromethyl; Y is a group contg. quat. ammonium; l is an integer of 0-5; m is 0 or 1; n is an integer of 1-5; and each of p and q is a positive number in the range in which the ratio of p/q is 2-16), and a soln. in the anode chamber is kept acidic. The voltage does not rise abnormally and suddenly, so stable electrolysis can be carried out. This method can be applied most preferably to an electrolytic system in which a basic substance is produced or is present in the cathode chamber.
Patent JP-H0973558-A (JP)
Title: Poligon generating device
Inventor: SUZUKI KAORI
IPC: G06T15/00
Filed: 1995-09-07
Abstract: PROBLEM TO BE SOLVED: To automatically prepare model data with the desirable number of poligons from original model data by preparing the grid point of the desirable number of the poligons with respect to original model data and obtaining the coordinate value of the intersection of this grid point and an original model so as to generate model data. SOLUTION: A model data input means 2 fetches original model data 1, a grid point generating means 3 generates the grid point of the desirable number of poligons with respect to this fetched original model data 1 and a coordinate data acquisition means 4 obtains the coordinate value of the intersection of the generated grid point and original model data 1 to generate new model data. At this time, the grid point generating means 3 selects a proper three- dimensional shape prepared in advance based on the maximum and minimum values in each coordinate axis of the coordinate value of original model data 1 and generates the grid point of the desirable number of poligons in this three- dimensional shape. The coordinate value is thereby acquired based on the grid point newly generated with respect to the original model to generate model data of the desirable number of poligons.
Patent JP-S6473956-A (JP)
Title: Talking state checking device
Inventor: NAKAMURA HARUHISA
IPC: H04M11/00
Filed: 1987-09-16
Abstract: PURPOSE:To contrive the reduction in cost required to check the talking state, by sound-recording information given via a telephone circuit attended with a checking signal from a signal generator of a terminal equipment, reproducing the information and outputting it to the terminal equipment. CONSTITUTION:When a checker activates a signal generator 18 of a terminal equipment 2, the signal generator 18 generates a checking signal and transmits it to a monitoring center 1 via a telephone circuit 3. A recording and reproducing device 15 of the monitoring center 1 is started attended therewith, the information inputted via the telephone circuit 3 is sound-recorded and reproduced after a prescribed time. Since the output means provided on the monitoring center 1 outputs the information reproduced by the recording and reproducing device 15 to the terminal equipment 2, the checker confirms the status of information by the terminal equipment 2. Thus, the talking state between the monitoring center 1 and the terminal equipment 2 is checked. It is not required the talking reply of a monitoring personnel of the monitoring center 1 for the check of the talking state.
Patent JP-2000032227-A (JP)
Title: Image reader
Inventor: TOBA SEIJI
IPC: H04N1/04
Filed: 1998-07-09
Abstract: PROBLEM TO BE SOLVED: To provide an image reader capable of judging the size of an original to be read even in the case that a base is colored. SOLUTION: This image reader is provided with a switching means for setting the input of an original size to manual input or automatic input and the input of the original size is set to the automatic input. In the state of matching one side edge of the original to be read to the position of a home position HP and separating a pressing lid not shown in the figure from cover glass 8 by a prescribed angle, information relating to the size in a length direction (sub scanning direction) of the original to be read is obtained by an original-to-be-read photosensor 10. Also, in the state of closing the pressing lid, the intensity of the reflected light of a lamp 11 to be a light source is detected by a CCD and the size in a width direction (main scanning direction) is judged.  From the size in the width direction and the size in the length direction, the plane size of the original to be read is judged by a control part.
Patent JP-H1168985-A (JP)
Title: Internet communication system
Inventor: HAMAGUCHI HIROKI
IPC: H04L12/70
Filed: 1997-08-26
Abstract: PROBLEM TO BE SOLVED: To provide an internet communication system capable of emergency information even in internet communication. SOLUTION: An internet terminal device 11 internet-communicates with a server on internet through a public line 4 and an internet provider 6, when a fire sensor 2 outputs emergency information showing the generation of an emergency to the internet terminal device when the emergency occurs, CPU 22 of the internet terminal device switch-controls the public line from the provider 6 to a host-side security center 7 based on inputted emergency information to interrupt internet communication and to inform the center 7 of emergency information.
Patent JP-S6473680-A (JP)
Title: Photovoltaic device
Inventor: IWAMOTO MASAYUKI
IPC: H01L31/04
Filed: 1987-09-14
Abstract: PURPOSE:To prevent carriers from being recoupled by a method wherein a crystal grain boundary where crystal particles are adjacent to one another is doped with an impurity used to determine a conductivity type. CONSTITUTION:A metal substrate 1 composed of stainless steel or the like and a semiconductor film 2 composed of an aggregate of many crystal particles are provided; this film is composed of a p-type layer part 2p, an i-type layer part 2i and an n-type layer part 2n in order to form a pin junction which is nearly parallel to a film plane as viewed from the light incidence side. A photodetecting face electrode 3 which is arranged on the surface of the p-type layer part 2p on the light incidence side in a shape to let a beam enter the semiconductor film 2 is constituted to be, e.g., a metal lattice shape and covers the whole surface of the semiconductor film 2 evenly. A light-transmitting protective film 4 which covers the surface of the semiconductor film 2 including the photodetecting face electrode 3 in order to prevent an incident beam from being reflected and to protect the surface is composed of silicon oxide, A crystal grain boundary where crystal particles are adjacent to one another is doped with an impurity used to determine a conductivity type at an impurity layer part displaying a p-type or an n-type conductivity type. The crystal grain boundary at the p-type layer part 2p arranged on the light incidence side is doped with the impurity to determine the p-type, e.g., boron, aluminum or the like.