baber/WOPTO huggingface dataset:
Patent JP-S61224625-A (JP)
Title: Fsk signal modulator-demodulator
Inventor: YAMAMURA YASUKIMI
IPC: H03M5/10
Filed: 1985-03-29
Abstract: PURPOSE:To simplify the constitution and to attain small size and low cost by digitizing most circuit parts and using a fixed frequency oscillator in common use for a modulation circuit and a demodulation circuit. CONSTITUTION:Output frequencies f, g from the fixed frequency oscillators 1, 2 in the modulation circuit are frequency-divided respectively into 1/N1, 1/N2 by frequency dividers 3, 4 and either of the frequency division outputs is selected by a transmission data. Since either of the frequency division outputs is outputted from a selection circuit depending whether the state of the transmission data is mark or space, the frequency of the transmission data is converted into a frequency corresponding to the mark or the space. The transmission data converted into the frequency corresponding to the mark or space is then sent to a transmission line via a band pass filter 6 and an amplifier circuit 7. On the other hand, in the demodulation circuit, the reception signal from the transmission line is inverted into a logic signal having the same frequency as the reception frequency by an A/D conversion circuit 10 via an amplifier 8 and a band pass filter 9.
Patent JP-H10261809-A (JP)
Title: Waveguide photodetector and manufacture thereof
Inventor: MINAMI KOJI
IPC: H01L31/0232
Filed: 1997-03-17
Abstract: PROBLEM TO BE SOLVED: To enhance an optical coupling efficiency of a waveguide photodetector and to achieve the high-speed responsiveness of the photodetector and a high integration of the photodetector by a method wherein the tapered part of a light-receiving region and the front and rear parts of an optical waveguide are provided in a region encircled with a stepped part, which is formed at the formation of an impurity diffused region. SOLUTION: A silicon nitride film 2 is laminated on a semiconductor substrate 1 with an impurity diffused layer 5 formed in the surface layer part and a dielectric layer 3, which is used as a buffer layer, is formed on the film 2. The upper right side part of the layer 3 is formed into a tapered form, whose thickness is formed thin to the direction of propagation of light, and an optical waveguide 4 is laminated on the layer 3. A part that contributes to a photoelectric conversion of propagated light 10 in the P<+> impurity diffused region 5 is used as a light-receiving part 9 and a light-receiving region 7, which functions as a waveguide detector by the formation of a tapered part 6 and can optically couple, is formed in this light-receiving part 9.  Here, when the region 5 is formed in the substrate 1, a step 8 is generated, but the tapered part 6 and optical waveguides X and Y in front and rear of the tapered part 6 are formed in the inside of the step 8 generated by the formation of the region 5.
Patent JP-S60206738-A (JP)
Title: D.c. substation for electric railroad
Inventor: AOKI TOSHIO
IPC: B60M3/02
Filed: 1984-03-31
Abstract: PURPOSE:To restrain a rise in d.c. voltage when load fluctuates by disposing d.c. chopper between a rectifier for converting a.c. power source output to d.c. output and a d.c. bus bar, whereby d.c. bus bar voltage is kept constant by on- off controlling the d.c. chopper. CONSTITUTION:A.C. lowered by a transformer 1 for a rectifier for lowering three-phase a.c. voltage is changed into d.c. voltage by a silicon rectifier 2 to be output, and the terminal on the negative pole side is connected to one electric car line N. The terminal on the positive pole side is connected to an input terminal of a d.c. chopper 3, and an output terminal thereof is connected to a d.c. bus bar 4. The d.c. bus bar 4 is connected to the other electric car line P through a feeder breaker 5. When d.c. voltage is input to the d.c. chopper 3, a semiconductor switch S is on-off controlled according to a control signal from a gate control device at the d.c. chopper 3 to output constant d.c. voltage to the d.c. bus bar 4. At a light load, a rise in d.c. voltage of the d.c. bus bar 4 is restrained.
Patent JP-S63231181-A (JP)
Inventor: FUKUCHI SAKAE
IPC: F25D21/04
Filed: 1987-03-20
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S54155392-A (JP)
Title: Device for prenotifying maximum permissible power changing time of nuclear reactor fuel element
Inventor: TSUKISHIRO SATORU
IPC: G21C17/00
Filed: 1978-05-30
Abstract: PURPOSE: To raise the efficiency of the operation of a nuclear reactor by calculating the residual life of the maximum permissible power of a nuclear reactor fuel element from the degree of burn-up of the fuel and quantitatively and accurately prenotifying the maximum permissible power changing time of the fuel element to an operator.  
     CONSTITUTION: A neutron flux measuring instrument 22 is installed within a nuclear reactor 20 to periodically feed a signal to a computer 24. The computer 24 periodically or as requested by an operator calculates all the fuel element powers in the reactor core and also calculates the degree of burn-up. A memory 26 stores the degree of burn-up prepared from the fuel element maximum permissible power among the degrees of burn-up calculated and the life. A compuer 28 calculates periodically or as requested by the operator the present degree of burn-up from the computer 24 and the residual life of the fuel element from the storage of the memory 26, and displys them on a display unit 30. Thus, the opertor can prenotify the fuel element changing time used at present so as to thereby efficiently operate the nuclear reactor. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S56162322-A (JP)
Title: Detector for flow rate of cooling water for atomic spectrophotometer
Inventor: YAMADA HIDEO
IPC: F23N5/24
Filed: 1980-05-16
Abstract: PURPOSE: To prevent an accident due to the forgetting of making the cooling water flow previously by controlling a power source for a gas controlling section supplying fuel gas to a burner by detecting a flowing condition of the cooling water in a flow rate detector suitable for a flame atomic spectrophotometer device.  
     CONSTITUTION: Cooling water for atomic spectrophotometer is supplied to a flow rate detecting tank 16 through a cooling water valve 12. A flow rate adjusting valve 18 setting the threshold value of a flow rate region optimum for cooling a burner 20 is mounted to the detecting tank 16, and the cooling water is stored in the tank 16 only when the flow rate of the cooling water supplied is more than the threshold value. Since a location of the tank 16 changes in response to the weight when the cooling water is stored in the flow rate detecting tank 16, the location of the change is detected by means of a switch 24, and the output signals are transmitted to a gas controlling section 26. The gas controlling section 26 feeds fuel gas to the burner 20 by means of a gas pipe 30, and the gas is ignited. The gas controlling section 26 also stops the supply of gas to the burner 20 when the flow rate of the cooling water is small and the tank 16 is returned to its original location. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S58182313-A (JP)
Title: Filter of surface acoustic wave
Inventor: SHIYOUJI YASUO
IPC: H03H3/08
Filed: 1982-04-19
Abstract: PURPOSE:To attain low loss easily and to realize the desired attenuation characteristics, by splitting a transducer into two in the direction of an electrode finger and matching the impedance among a driving circuit, a terminating circuit and a filter. CONSTITUTION:The impedance at the transducer 3, that is, the output side is doubled, and an electrode finger is provided to both sides of the center electrode. In forming the transducer 3 in this way, the number of electrode pairs is unchanged, the total capacitance CT between the electrodes is halved by halving the cross width W of the electrode finger, and the real part ZR of the impedance is doubled. Relating to the imaginary part ZI of the impedance, it is not a problem because it is cancelled with a series inductor, allowing to attain a low loss. Further, it is possible triplicate the impedance of the transducer 3 without changing the desired characteristics. Furthermore, it is required to match the direction of inter-digital electrodes in matching with the direction of the polarity of the electrodes.
Patent JP-H0210278-A (JP)
Title: Apparatus and method for testing macroaccess time
Inventor: ROBAATO WARUTAA BASETSUTO
IPC: G01R31/26
Filed: 1989-03-17
Abstract: PURPOSE: To carry out a test of optional size or type macro by controlling access time of macro and measuring precise time between an input signal and a test signal during the macro function test. CONSTITUTION: The access time of buried RAM macro 2 of a LSI chip 1 is tested. At that time, a control circuit 8 sends out an instruction of the execution of reading and writing to a memory/array 4 through a R/W line Moreover, the circuit 8 activates the array 4 by the height of the level of macro selection signal MS and at the same time supplies SL signals in high and low levels to a latch/enable 10. Then, a test slope line supplies a test slope signal TS to the enable 10 and the latch 12 from a tester 34. Consequently, the enable 10 receives SL<1> , TS and supplies the signals SL to an output latch 6 and controls the latch 6. Moreover, the delay in a chip between these signals is determined based on the timing values at the rear end of the signal TS and the tip end of the signal MS and the signal MS and the signal TS are synchronized.
Patent JP-H09255195-A (JP)
Title: Device for preventing overrunning of roll supporting section in winding/unwinding machine and method for winding/unwinding film or sheet using this winding/ unwinding machine
Inventor: SUDA TAKUMI
IPC: B29D7/01
Filed: 1996-03-21
Abstract: PROBLEM TO BE SOLVED: To provide a device for preventing overrunning of a roll supporting section in a winding/unwinding machine, which is capable of preventing the occurrence of distortion in a film or a sheet by reducing a moving amount from a home position and reducing manufacturing costs by reducing the number of sensors as many as possible. SOLUTION: In a winding/unwinding machine constructed in such a manner that a roll supporting section 5 is loaded so as to be freely moved on a hanging base in the width direction of a film or a sheet based on position detecting information regarding the width direction end part of the film or the sheet, detecting sensors 11 and 12 are provided respectively in a place corresponding to the home position of the roll supporting section 5 on the hanging base and a place away by a length equivalent to the half of a moving range, and a position detecting dog 13 having a length equivalent to the moving range is fixed in the roll supporting base 5.
Patent JP-S55156468-A (JP)
Title: Generator for picture signal
Inventor: SATOU YOUJIROU
IPC: H04N1/19
Filed: 1979-05-24
Abstract: PURPOSE:To obtain excellent pictures all the time by forming on a time axis a succession of a picture period, a non-picture period of a specified width and the following picture period and then by selectively extracting only signals in the latter picture period. CONSTITUTION:Inferior value Tpmin of the variation range of time interval Tp of a succession of detection pulses Pd varying with a relative traveling speed in the sub-scanning direction between an original and sensor IS and period Tv of a picture signal read by sensor IS are given relation Tpmin>(2Tv+Tb). Driving circuit DC supplies pulses (d) to sensor IS and on the basis of movement-value detection pulses Pd and clock pulses (b), control pulse generating circuit CC generates control pulses Pc shown by (c), which are supplied to circuit DC and gate pulse generating circuit GPG. From gate circuit G, only the 2nd picture signal Sa0 in picture signal Sa shown by (e) read from sensor IS is selected and sent out to output terminal 0. Thus, picture signal Sao free of variation in signal level can be obtained.
Patent JP-H06273016-A (JP)
Title: Automatic ice making apparatus
Inventor: KAKIMOTO NORIHIRO
IPC: F25C1/24
Filed: 1993-03-23
Abstract: PURPOSE:To enable the discharging of water containing impurities left in an ice making tray through a drain section by rotating the ice making tray by a specified angle by an ice making tray rotating means with the water left on the top of the ice of the ice making tray. CONSTITUTION:It is judged based on the temperature detected with a temperature sensor 34 whether the water in an ice making tray 8 is just before being frozen completely or not. In the water discarding process, an ice making tray rotating means of a microcomputer 51 works to energize a drive motor 4 through a motor drive circuit 56 and the ice making tray 8 rotates centered on a support shaft 10 with a drive mechanism 7. With the rotation of the ice making tray 8, a protrusion piece 18 abuts the end part 12A of a lid 12 to release the top surface of the ice making tray 8. Moreover, the water left at the upper part of the ice moves to the side of a drain groove 31 together with impurities contained in the water and drained to a pining with the drain groove 31 thereby enabling the obtaining perfect transparent ice without the impurities.
Patent JP-H04301064-A (JP)
Title: Steel member excellent in fatigue strength and its production
Inventor: HANAKAWA KATSUNORI
IPC: C23C8/26
Filed: 1991-03-28
Abstract: PURPOSE:To improve the fatigue strength of a steel member mixed with relatively large amounts of C and Si by improving its internal hardness. CONSTITUTION:This is a steel member increased in internal hardness by forming retained austenite in a steel member contg., by weight, 0.7 to 1.2% C and 1.5 to 2.5% Si by austempering treatment and subjecting the above retained austenite to nitriding treatment at 450 to 490 deg.C for melting to form its structure into a mixed one of cementite and ferrite and its manufacturing method.
Patent JP-H09259524-A (JP)
Title: Recording/reproducing apparatus and recording/ reproducing method
Inventor: OKAMOTO KAZUYUKI
IPC: G11B20/00
Filed: 1996-03-21
Abstract: PROBLEM TO BE SOLVED: To realize a compatible scramble function by determining based on a copy guard signal recorded in accordance with a predetermined recording format whether or not information is to be reproduced. SOLUTION: At the recording time, when a scramble mode is designated through the manipulation of keys, a copy guard signal showing recording history information of a recording medium is replaced with a reproduction impermissible code. The reproduction impermissible code and an input pass word are recorded together with audio signals and video signals to a magnetic tape. At the reproducing time, when the input pass word agrees with a reproduction password recorded in the magnetic tape, a control circuit 22 changes the reproduction impermissible code to the original copy guard signal. In other words, unless the same password is input, the copy guard signal remains as a signal (code) indicating that the reproduction is not permitted, i.e., the recording medium cannot be reproduced.
Patent JP-S54156129-A (JP)
Title: Inverter apparatus
Inventor: KINOSHITA SHIGENORI
IPC: H02M5/45
Filed: 1978-05-31
Abstract: PURPOSE: To accomplish stable starting by maintaining the reverse voltage above a given allowable lower limit in combination with a forward conversion starting arithmetic circuit and a reverse conversion starting arithmetic circuit when the reverse conversion thyristor is turned off.  
     CONSTITUTION: A reverse conversion starting arithmetic circuit (including an arithmetic circuit composed of a divider 44 and a pattern circuit 48) is provided to start a a reverse conversion circuit (a bridge connection is made for the reverse conversion thyristor together with commutation capacities 20, 22 and 24) by a soft start signal (generated by a reverse soft start circuit 52) for assigning a firing angle computed corresponding to the state of load so that the reverse voltage is maintained above a given allowable lower limit when the reverse conversion thyristors 14a∼d, 16a∼d and 18a∼d are turned off. In addition, a forward conversion starting arithmetic circuit is provided to start a forward conversion circuit by a soft start signal (generated by a forward conversion soft start circuit 74) for assigning a firing angle computed so that the overvoltage and the overcurrent of the output are maintained below a given allowable value. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S60206597-A (JP)
Title: Aluminum alloy solder
Inventor: IWASAKI SHIYOUSUKE
IPC: B23K35/28
Filed: 1984-03-30
Abstract: PURPOSE:To improve the strength of a joint part by decreasing the content of Fe to specific weight % or below. CONSTITUTION:The content of Fe in Al-Si and Al-Si-Mg alloys to be used as an Al alloy brazing filler metal is decreased to <=0.15%. The presence of a compd. contg. Fe in an eutectic structure has an important relation as a main factor to decrease the strength of the joint part. The content of Fe in the Al alloy brazing filler metal is consequently decreased to <=0.15% by which the formation of the Fe compd. in the structure of the joint part is prevented. The Fe component exists not in the form of a compd. but in the solid solution state in the alpha phase and therefore the toughness and strength of the joint part are improved.
Patent JP-H02243513-A (JP)
Title: Production of spindle-shaped calcium carbonate
Inventor: SUGAWARA KIYOSHI
IPC: C01F11/18
Filed: 1989-03-15
Abstract: PURPOSE:To obtain spindle-shaped calcium carbonate having a small amount of aggregated particles by previously adding hydrogen peroxide and a chelating agent to water suspension of calcium hydroxide and bringing the suspension into contact with a CO2-containing gas at a specific reaction starting temperature. CONSTITUTION:Hydrogen peroxide and a chelating agent are added to water suspension of calcium hydroxide and the suspension is brought into contact with a CO2-containing gas at a specific reaction starting temperature to give spindle-shaped calcium carbonate having a small amount of aggregated particles. The amount of hydrogen peroxide added is enough >=1mol% based on calcium carbonate and when the amount is <1mol%, unpreferably pillar-shaped calcium carbonate aggregated into about 1mum is formed. The amount of the chelating agent added is >=1mol% based on calcium hydroxide and when the amount is <=1mol%, unpreferably cubic calcium carbonate having >=0.1mu particle diameter is formed.
Patent JP-H07243831-A (JP)
Title: Method and device for automatically testing spinneret
Inventor: NAKAJIMA TAKASHI
IPC: D01D4/04
Filed: 1994-03-08
Abstract: PURPOSE:To provide an automatic testing device and its method for checking a plurality of spinneret holes for clogging. CONSTITUTION:The title device 1 is comprised of a supporting table 2 and a reception base 3 of rectangular framed shape, and a computer 19 in which the basic conditions for a spinneret plate P are stored/set in advance operates a multi servo controller 18 so as to shift sliding members 7, 10 and 11 in X, Y and Z axis directions and allow a CCD camera 13 to be aligned with a hole of the plate P on the table 2. Then a light is directed thereon from an illuminating device and the hole is magnified by a magnification lens 12 to display it on the camera 13. Further, the members 7, 10 and 11 are shifted by the controller 18 to display the holes successively on the camera 13, and they are image- processed by an image processor 20, then the processed images are inputted into the computer 19. The displayed actual hole is finally compared with the spinneret hole diameter in the data that are stored/set in advance in the computer 19, thereby judging the clogging rate of hole.
Patent JP-H08263268-A (JP)
Title: Function expansion device for cpu and electronic apparatus
Inventor: MATSUMOTO TATSUMI
IPC: G03G15/36
Filed: 1995-03-23
Abstract: PURPOSE: To realize the expansion functions of plural CPU, which control different processings, by one type of device with a small number of pins and to suppress the increase of cost. CONSTITUTION: The first and second function expanding circuits 203 and 204 which individually execute function expansion against various CPU are provided. Data and signals from CPU are received and they are selectively outputted to one of the function expansion circuits 203 and 204. Furthermore, data and signals from the function expansion circuits 203 and 204 are selectively received and outputted in accordance with a switch signal from CPU.
Patent JP-S54155751-A (JP)
Title: Electronic cash register
Inventor: OONISHI SOUICHI
IPC: G01G19/414
Filed: 1978-05-29
Abstract: PURPOSE: To make it possible to attain correct register transaction constantly by immediately correcting an error by providing an electronic register with a fault diagnostic function for a peripheral apparatus such as an electronic measuring scale.  
     CONSTITUTION: An operator changes the key switch of electronic cash register 1 over to inspection mode 4 and then depresses SCALE key 7 of key input part 6, so that high level [H] will be outputted from AND gate 5. As a result, respective input control terminals of SCALE decision method 8 which discriminates whether or not electronic measuring scale 2 is connected electrically, MOTION decision method 9 which discriminates whether the platter of measuring scale 2 is in motion or not, OUTOFRANGE decision method 10 which discriminates whether or not the measurement is within the range of measurement 2, and ZEROCENTER decision method 10 which discriminates whether or not an zero adjustment is made all become "H", so that respective decision methods will be ready. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S53149920-A (JP)
Title: Preparation of dimethyl sebacate
Inventor: YAMATAKA KAZUNORI
IPC: C07C67/56
Filed: 1977-06-03
Abstract: PURPOSE: To prepare high purity dimethyl sebacate easily, by treating electrolyte obtained by the electrolytic condensation of monomethyl adipate, successively with an cation exchange resin and an anion exchange resin. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H0651795-A (JP)
Title: Apparatus and method for quantizing signal
Inventor: JIEEMUSU DEBUITSUDO JIYONSUTON
IPC: G10L19/035
Filed: 1993-03-02
Abstract: PURPOSE: To provide a device and method for quantization of audio frequency signals which has high quality and high efficiency by determining a scale factor through a quantization/bit rate control loop process. CONSTITUTION: A perceptual audio frequency encoder 104 establishes a scale factor in use on the basis of a threshold scale factor based on a calculated auditory threshold at a given frequency and an absolute scale factor based on an absolute auditory threshold at the same frequency and a quantizer 206 quantizes signals by using the scale factor in use to evaluate costs accompanying the quantized signals and adjusts the scale factor in use by interpolation between the threshold scale factor and absolute scale factor; and those steps are repeated until the costs enter a permissible range.
Patent JP-H05260951-A (JP)
Title: Culturing container
IPC: C12M3/00
Filed: 1992-03-23
Abstract: PURPOSE:To prevent the invasion of various bacteria into a culture container and to enable to control the volume of aeration. CONSTITUTION:The main body 1 of the culture container is formed from a polycarbonate resin, and a lid 2 capable of being attached to or detached from the main body 1 and more flexible than the main body 1 is formed from a polypropylene resin. Plural holes 3 are disposed in the lid 2, and sterile air- passable members 4 for closing the holes 3 are adhered to the upper wall 11 of the lid 2. The volume of the aeration in the culture container is controlled by attaching or detaching a cover 5 to or from the upper wall 22 through the sterile air-passable members 4.