baber/WOPTO huggingface dataset:
Patent JP-H02269309-A (JP)
Title: Optical modulating system
Inventor: NISHIMOTO HIROSHI
IPC: H04B10/548
Filed: 1989-03-14
Abstract: PURPOSE:To execute a long distance transmission by a fiber whose fiber wavelength dispersion is large even at a transmission rate of >= several giga-bit/sec by modulating asymmetrically a phase of light and moving the center wavelength of a rise part of an output light of a modulator to a long wavelength side, and moving the center wavelength of a fall part to a short wavelength side. CONSTITUTION:By modulating asymmetrically phases of each waveguide 1, 2 of a modulator, the center wavelength of an output light is moved to a long wavelength side and a short wavelength side in a rise part and a fall part, respectively. Accordingly, by wavelength chirping generated by this method, the rise part of an optical pulse is delayed and the fall part advances by a fiber dispersion, and a pulse compression is generated. It works in the direction for compensating the waveform divergence by a modulation side band and the wavelength dispersion of a fiber, and executes an action for improving the transmittable fiber length. In such a way, a long distance transmission an be executed by the fiber whose fiber wavelength dispersion is large even at a transmission rate of >= several giga-bit/sec.
Patent JP-S59189128-A (JP)
Title: Surface hardening of resin material
Inventor: TATEOKA YASUO
IPC: C08J7/04
Filed: 1983-04-09
Abstract: PURPOSE:To make it possible to effect surface glossy finish and hardening of a resin material which must have remarkable weather resistance, by forming a hardened film on the surface of a resin material formed from a resin containing a radical scavenger. CONSTITUTION:A hardened film is formed on the surface of a material made of a radical scavenger-containing resin to harden the surface of the resin material. The amount of the radical scavenger added is 0.1-5.0wt% based on the weight of the resin. If it is larger than 5wt%, no effectiveness corresponding to this amount can be obtained, the cost is increased, and the properties of the resin are lowered. On the other hand, when it is lower than 0.1wt%, no effectiveness of addition can be obtained. When adhesion of the cured film to the resin material is not good, a primer is applied to the surface of the resin material and a surface hardener is applied thereto.
Patent JP-S63227208-A (JP)
Title: Digital signal processing circuit
Inventor: KAWAKAMI HIROHEI
IPC: H03H17/02
Filed: 1987-03-17
Abstract: PURPOSE:To reduce power consumption, by inputting the carry output of a first full adder to a second full adder via a first flip-flop, inputting the carry output of a third full adder to a fourth full adder via a second flip-flop, and inputting the sum output of the second full adder to the third full adder. CONSTITUTION:The carry outputs of first adders 51 and 52 are inputted to the first flip-flops 20 and 21, and the outputs of the first flip-flops 20 and 21 are inputted to the second adders 60 and 61, and the carry outputs of the third adders are inputted to the second flip-flops 23 and 24. And the outputs of the second flip-flops are inputted to the fourth adders 63-65, and the sum outputs of the second adders are inputted to the third adders. In such a way, an input signal is outputted with the minimum group delay for the maximum frequency of an inputted digital signal and the frequency of a synchronizing clock, and when a circuit is formed with an LSI, it can be formed with minimum chip size and with resulting minimum power consumption.
Patent JP-H01235531-A (JP)
Title: Buoy for measuring depth of water
Inventor: EKUSA MASATOSHI
IPC: G01C13/00
Filed: 1988-03-14
Abstract: PURPOSE:To provide a buoy capable of measuring depth of water by one throwing, by equipping the buoy with a ring, by setting space to pass through a fishing line between the buoy and the ring, passing the line through the space and making a state wherein the fishing line is freely moved. CONSTITUTION:A buoy 1 is equipped with a ring 3, space 2 to pass through a fishing line 4 is set between the buoy 1 and the ring 3, the fishing line 4 is passed through the space 2 and the fishing line 4 is maintained in a freely movable state. When the buoy is thrown into the water in this state, while the buoy 1 is floating on the water surface, the fishing line 4 is played out through the space 2 until a weight reaches the bottom. When the playing out of the line 4 is completed and a fishing rod is raised, the buoy 1 is lifted while being fixed at the position by friction between the fishing line 4 and the ring 3, the distance between the position of the buoy 1 and the weight is depth of water. Consequently, depth of water is measured by one throwing and fixing position of the buoy 1 can be determined by one throwing.
Patent JP-H10225872-A (JP)
Title: Screw holding device provided with stopper
Inventor: KOZU TSUNEYOSHI
IPC: B25B15/00
Filed: 1997-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a device to be inserted into a double-head driver bit in threading a screw by use of the double-head driver bit held on a rotation tool for preventing slant, oscillation, or removal of the screw to provide durability and strength. SOLUTION: In a holding device comprising a holding part 1, an outer cylinder 2, an inner cylinder 9, etc., the holding device is composed to be securely coupled with a double-head driver bit held on a rotation tool to be prevented from removal by a stopper formed of a protruded part 16, a ball screw 15, a ball 8, and a coil spring 10. The holding part 1 and the outer cylinder 2 are formed of similar metal, and non-slips are provided on the holding part 1.
Patent JP-H07269457-A (JP)
Title: Reversible pump-turbine
Inventor: KIMOTO YUTAKA
IPC: F03B15/04
Filed: 1994-03-31
Abstract: PURPOSE:To prevent such a possibility that water infiltrating into a back pressure chamber might close the opening part of a supply-discharge pipe and thereby air in the central part of a runner is not discharged from this supply- discharge pipe at a time when compressed air is filled up in a runner chamber by way of this supply-discharge pipe connected to an upper cover in time of transition to the pump operation of this reversible pump-turbine, rotating the runner at rated speed, and the air is discharged from the pipe, then water is filled up in the runner chamber, from occurring. CONSTITUTION:Plural blades 25 extending in the radial direction from a directly connected part with a main shaft of a runner 2 is attached thereto, and with rotation of these blades 25, water infiltrating into a back pressure chamber is pushed back and thereby a span of time to be reached to an opening part of a supply-discharge pipe 13 is delayed to some extent, and during this time, air in a runner central part is discharged out of the supply-discharge pipe 13 by way of a space 11 from a hole 14 installed in the main shaft 1, and the air in the runner chamber is completely discharged, filling up the water in the runner chamber, and thus pump operation is secured.
Patent JP-H0738436-A (JP)
Title: Analogue signal receiving circuit
Inventor: POORU DABURIYU CHIYAN
IPC: G11B20/10
Filed: 1994-03-31
Abstract: PURPOSE: To provide receiving circuit which is suitable for a chip that includes both an analog component and a digital component by giving an analog signal that is centered on a DC level to a flash A/D converter in more than 500 MHz operation frequency and also minimizing the degradation of signal-to-noise ratio. CONSTITUTION: A differential amplifier 41 on a 1st stage of a receiving circuit receives DC reference voltage VCTAP like center tap voltage of a flash A/D converter. An input 43 is connected to an output through a resistance feedback circuit. A resistance circuit network on a 2nd stage is connected to an output of a differential amplifier 41 and also receives an analog signal VACin . An output VACout of the resistance circuit network works as an output of an analog receiving circuit. The resistance circuit network produces voltage drop between an amplifier output and a receiving circuit output which coincides with voltage drop at both ends of a feedback circuit of the amplifier. While the state is in VACin =0, the VACout is equal to two input voltages of the amplifier 41.
Patent JP-H06276795-A (JP)
Title: Controller for main engine shaft-driven generator
Inventor: DOI FUMIO
IPC: H02M7/48
Filed: 1993-03-22
Abstract: PURPOSE:To stably control by so presetting a value of an integral amplifier that a difference of DC voltages of a converter and an inverter becomes a predetermined value at a time point when a current control.is restarted from a phase iris. CONSTITUTION:A controller for a main engine shaft-driven generator calculates a value of an integral amplifier 53 of a current controller 15 in which a converter DC voltage coincides with an inverter DC voltage with a condition decided by a deciding unit 22, a voltage detected value of a shaft generator 1, a voltage detected value of a synchronous phase modifier 4 and a limit value set by phase control angle limit setters 58A, 58B of the converter and the inverter by a reset calculator 23. A bias amount of a minimum limit set by a bias amount setter 24 is subtracted by a bias amount subtracter 25, and the value of the amplifier 53 of the controller 15 is switched to a value in which a difference of the converter DC voltage and the inverter DC voltage becomes a predetermined value according to a signal from a reset signal generator 54. As a result, a recovery time from a phase iris state is shortened, and a stable frequency control can be conducted.
Patent JP-S60207572-A (JP)
Title: Method of release of laver
Inventor: SUGATA OSAMU
IPC: A23L17/60
Filed: 1984-03-29
Abstract: PURPOSE:Not only to make a mechanism simple and to make maintenance and control easily, but also to shorten the whole length of a machine and to lessen installation area, by constituting one station wherein all the release operations can be carried out. CONSTITUTION:When a cam plate rotates about 310 deg., the laver feed member 28 starts operations. The cam plate finishes one turn and further rotates about 60 deg.. In this operation, while the cam plate is restored to the original position, it carries out a small vertically moving operation plural times (at 20 deg. and 40 deg. in the fig.), so that the laver 35 which is being introduced is forcedly sent out, and positioning and introducing operation is made secure. These operations are continuously repeated, and the laver 35 which is successively sent to the release part A is released.
Patent JP-H0696167-A (JP)
Title: Filing system for image information
Inventor: MATSUURA HIDEO
IPC: H04N1/387
Filed: 1991-03-26
Abstract: PURPOSE:To obtain a filing system capable of using a system in current use almost as it is and preventing the reading picture quality of an image large in size from being remarkably lowered by performing the picture element density conversion of image information using signal compression processing corresponding to size in which the image information is read before the image information is stored in a filing part. CONSTITUTION:Radiant image information reading density from a cumulative phosphor sheet (IP) is set at 10pixel/mm for the IP of any size. The picture element density of an inputted digital signal is converted to the one in accordance with the size of the IP by which the image is read at a picture element density conversion part 3 by using signal processing. In other words, the conversion processing of the picture element density is performed by using the signal processing so that the picture element density can be set at the one of 5pixel/ mm when the size of the IP used in scan reading shows the one of uncut paper or half size, the one of 6.7pixel/mm when it shows quarto size, and 10pixel/mm when it shows sexto size.
Patent JP-2000031829-A (JP)
Title: Digital signal processing
Inventor: DAVIES COLIN
IPC: H04N7/30
Filed: 1999-02-03
Abstract: PROBLEM TO BE SOLVED: To improve the efficiency of a matching search process by respectively deciding fundamental functions about plural signal parts, periodically deciding a correction coefficient about each fundamental function and producing a basic function structure block based on an original fundamental function and correction coefficients. SOLUTION: Whenever an MP algorithm is carried out, it is checked if it conforms to MP stop reference and if counter value is N. When it conforms to the reference, the correction path of a correlation coefficient is executed. The selected first MP fundamental function is correlated with a remainder signal, correction to the correlation coefficient is found, the correlation coefficient is weighted and a basic component is subtracted from the residual signal. When a structure than does not pass through a correction route yet does not exist any more, a correction process is stopped, and updated by an order in which the correlation coefficients of the basic components is selected by the passing and by an order in which they enter a structure block and the remainder signal is updated in each stage before proceeding to the next basic component.  The approximation of global optimization of the remainder signal is performed by periodically updating an MP correlation coefficient.
Patent JP-S62219675-A (JP)
Title: Semiconductor photodetecting device
Inventor: MORI YOSHIHIRO
IPC: H01L31/10
Filed: 1986-03-20
Abstract: PURPOSE:To generate sufficiently large photocurrents to a weak optical signal by forming a first conductivity type first semiconductor layer, a second conductivity type second semiconductor layer and a first conductivity type third semiconductor layer and each forward-biassing the second and third semiconductor layers to the first semiconductor layer. CONSTITUTION:A second conductivity type second semiconductor layer 15 is shaped onto a first conductivity type first semiconductor layer 106, a first conductivity type third semiconductor layer 104 is formed onto the second semiconductor layer 105, and the second and third semiconductor layers 105, 104 are each biassed in the forward direction to the first semiconductor layer 106. The first semiconductor layer such as an N-AlxGa1-xAs collector layer 106, the second semiconductor layer such as a P-GaAs base layer 105 and the third semiconductor layer such as an N-AlxGa1-xAs emitter layer 104 are shaped onto a substrate such as a semi-insulating GaAs substrate 111, a desired shape is formed through a technique such as etching, and an electrode is shaped. A collector 108 is grounded through a resistor, and an emitter 102 is biassed constantly at voltage such as -5.2V. A base 110 is biassed at voltage such as approximately -4.4--4.2V by resistive division, and desired collector currents are made to flow.
Patent JP-S51137449-A (JP)
Title: Bar type clock
Inventor: MAENO TAKESHI
IPC: G04B19/00
Filed: 1975-05-24
Abstract: PURPOSE: To provide a bar clock in which the time graduations are indicated on a straight line to allow immediate perception of the time by a single pointer. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-H08258038-A (JP)
Title: Self-adhesive film for protecting semiconductor wafer and surface protecting method using the same
Inventor: SHIOGAI SUSUMU
IPC: B28D7/04
Filed: 1995-03-22
Abstract: PURPOSE: To provide a self-adhesive film for protecting a semiconductor wafer capable of protecting the surface of a semiconductor wafer electronic circuit at the time of the processing of the semiconductor wafer and capable of being easily peeled only by heating without applying radiation at a time of peeling and damaging an IC memory. CONSTITUTION: A self-adhesive film is bonded to a semiconductor wafer at temp. equal to or higher than the m.p. of a self-adhesive to perform the processing of the semiconductor wafer in the vicinity of the m.p. of the self-adhesive and heated for several sec to be peeled and removed from the semiconductor wafer. The bonding strength of the self-adhesive film becomes high to a certain degree in the vicinity of the m.p. of the self-adhesive and becomes low at the high temp. heating and peeling the self-adhesive film and 20-80wt.% of the monomer constituting the self-adhesive is composed of a comb-shaped polymer having a 8 or more C side chain and the base material of the self-adhesive film is constituted of a plastic film having heat shrinkability.
Patent JP-S51137496-A (JP)
Title: Lottery register
Inventor: YABUNO SADAO
IPC: G07G1/01
Filed: 1975-05-23
Abstract: PURPOSE: To provide a lottery register comprising a combination of a register and a lottery machine whereby a winning number is announced through an auto-counter according to the instructions from the register. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S56159992-A (JP)
Title: Controlling device of motor
Inventor: AWANO TOSHIAKI
IPC: H02P5/74
Filed: 1980-05-09
Abstract: PURPOSE:To prevent an overcurrent from flowing through the motors by a method wherein an auxiliary switches are provided which are interlocked with main switches provided between the motors and a variable boltages variable frequencies inverter and feeding a pattern signal which decreases currents of the motors. CONSTITUTION:When the motors 4, 5 are normally operated and the main switches 9, 10 are closed, the auxiliary switches 15, 16 are closed as well. Assuming now that the main switches 9 is opened so as to release the motor 4, the auxiliary switch 15 is opened interlockingly with the main switch 9, and short-circuits at both ends of a voltage dividing resistor 12 are released. As a result, a pattern voltage of a patterns signal generator 11 is fed to a current control operational circuit 17 at a value of the voltage divided by the voltage dividing resistors 12, 14, and a current component of a control signal fed from the operational control circuit 20 to VVVF inverter 3 decreases according to the release degree of the motor 4. Therefore, there is no possiblity of the overcurrent flowing in the motor 5.
Patent JP-H10260104-A (JP)
Title: Helium leak detector
Inventor: IGAWA AKIO
IPC: G01M3/00
Filed: 1997-03-17
Abstract: PROBLEM TO BE SOLVED: To provide a helium leak detector which can ideally conduct leak tests on an object to be tested having permeability. SOLUTION: Helium leaking out from a structural defective part 7 is quickly introduced to a sniffer probe 6 together with the air flowing through the peripheral atmosphere of a hollow thread 1 before the helium permeates the permeable film of the thread 1. Therefore, only the leaking-out helium can be detected effectively by surely distinguishing the leaking-out helium from the helium permeating through the preamble film and the detection can be performed extremely quickly with high sensitivity by utilizing the diffusivity of the helium.
Patent JP-H03265309-A (JP)
Title: Data compression coding device
Inventor: SUZUOKI MASAKAZU
IPC: H03M1/68
Filed: 1990-03-15
Abstract: PURPOSE:To cancel an error caused when a data is decoded and to reproduce the data from an optional point on the way of the data by arranging a straight PCM block in the mode outputting an input signal directly forcibly at an interval of a prescribed number of blocks. CONSTITUTION:An audio PCM signal is stored in a buffer 3 via a switch 2 and fed to a 0-th order filter 5, a 1st order filter 6, a 2nd order filter 7 and a counter 8 in a prediction device 4. The encode filter 6 is configurated known as a differential filter, and an audio PCM signal of one block fed to the 0-th order filter 5 is not subject to differential processing but fed to a range detector 9 as a straight PCM signal. Thus, a DC error component caused by propagation of an error caused at decoding is eliminated and the reproduction from almost an optional point after lapse of a prescribed time is attained.
Patent JP-H02243466-A (JP)
Title: Sheet sorter
Inventor: KITAHARA MAKOTO
IPC: B65H39/11
Filed: 1989-03-15
Abstract: PURPOSE:To reduce a span of dead latency in a discharging means by controlling travel speed of a moving means so ass to make relative displacement time of the discharging means with a bin approximate to time of up to discharge starting at another bin. CONSTITUTION:Each sheet 5 being discharged out of an image former 1 is sorted and housed in each bin B of a bin unit 46 of a sheet sorter 2 by a discharging means 10 to be moved by a moving means consisting of a motor 11, a chain 15 or the like. In this case, when time t1 ranging from discharge processing completion of the sheet 5 with the bin B to relative displacement completion of the discharging means 10 for a second discharge process to another bin B and time t2 from first discharge processing completion to second discharge process starting are in a relationship of t1<t2, travel speed of the motor 11 of the moving means is controlled so as to make the time t1 approximate to the time t2. Thus, dead latency in the discharging means is eliminated, so that the image former and the sheet sorter are favorably matched with each other.
Patent JP-S55158323-A (JP)
Title: Continuous drawing and false twisting process
Inventor: ICHIHASHI EIJI
IPC: D01F6/62
Filed: 1979-05-22
Abstract: PURPOSE: Continuous and high-speed draw-false twisting yarn-processing operation is conducted by supplying a yarn after the yarn end of the polyester undrawn yarn is drawn so that the remaining elongation becomes lower than a specific value and the knots are connected and a lubricant is applied around the knotted part.  
     CONSTITUTION: When polyester undrawn yarns with an optical birefringence Δn in the range of 0.03≤n≤0.06, are connected with knots between packages and the draw-false twisting yarn processing is effected continuously at a speed of higher than 300m/min, the yarn ends of the undrawn yarns are drawn so that the remaining elongation becomes less than 50% and then the yarn ends are connected into a knot. Then, a lubricant is applied around the knotted part and the yarn supply is started to effect the continuous draw-false twisting of the undrawn yarns containing the knotted part. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S55155576-A (JP)
Title: Chopper current controlling device
Inventor: KUROSAWA RIYOUICHI
IPC: H02M3/135
Filed: 1979-05-22
Abstract: PURPOSE:To simplify the computation of an average value of load current necessary to control the chopper current by a method wherein a means to compute an output pulse of voltage frequency changer is adopted as a means to digitize a chopper load current. CONSTITUTION:An output current of a chopper is detected by a current detector 16, the detected output is converted into a pulse of an appointed frequency by a voltage frequency changer 18 and is fed to a microcomputer 20 previously inputed with a command current value is. In the computer 20, the output pulse is computed by a counter with a cycle an integer times of the on-off cycle of the chopper, the counted value is compared with the command current value to the chopper and an on-off command is sent out to the chopper. By this way, an average value of load current of chopper can be computed simply and securely in a short time.
Patent JP-S55154607-A (JP)
Title: Sequence controller
Inventor: SATOU TAKAHISA
IPC: G05B15/02
Filed: 1979-05-22
Abstract: PURPOSE: To enable simultaneous sequence processing without using many memories, by performing repetitive operating processing with the repetitive processing procedure code instructing the repetitive instruction of processing procedure stored, in a digitized sequence controller using a computer.  
     CONSTITUTION: A logic operation processing section 2 processes the process input every timing pulse produced at a timing pulse generating section 3, based on the processing step stored in a processing step memory section 4. The repetitive operating processing is made at a operation processing section 6 with the repetitive processing step code instructing the repetition of processing step stored. Thus, without using many memories for the processing step memory section, the simultaneous sequence processing the same as a relay sequence can be made. 
     COPYRIGHT: (C)1980,JPO&Japio