baber/WOPTO huggingface dataset:
Patent JP-H1075229-A (JP)
Title: Demodulator for orthogonal frequency-division multiplexing system
Inventor: KAWABE TAKESHI
IPC: H04L27/38
Filed: 1997-05-19
Abstract: PROBLEM TO BE SOLVED: To provide a data demodulation circuit for an orthogonal frequency- division multiplexing(OFDM) system with which a satisfactory reproduced signal can be provided even in a complicated reception environment by providing a symbol synchronization detecting means appliable to a system for using a guard interval or a system for correlating reproduced data. SOLUTION: A selected received signal is passed through a band pass filter 20, frequency converter 21 and low-pass filter 22, and a base band signal is extracted. Next, A/D conversion is performed and this signal is dispatched to a fast Fourier transform(FFT) processing circuit 25. In this case, only a valid symbol is extracted by a memory part and after serial/parallel conversion the fast Fourier transform is performed, FFT is performed. Next, amplitude and phase information is detected and outputted at a quadrature amplitude modulation(QAM) demapping circuit 27 but concerning its one part, the error is calculated by a discrimination/error calculation circuit 30. Concerning the error signal, a read memory address position at the memory part of a synchronizing processing circuit 24 is controlled so as to minimize the error signal.
Patent JP-H02309080-A (JP)
Title: Method for partially repairing pipeline from inner face and repairing material used for it
Inventor: FUJITA AKITAKA
IPC: F16L1/00
Filed: 1989-05-22
Abstract: PURPOSE:To surely repair the inner face of a pipeline in a short time by inserting a repairing material made of thermoplastic resin coated with an adhesive, softening and expanding it with heat, closely sticking it to the inner face of the pipeline including a position to be repaired, recovering rigidity, and partially repairing the pipeline from its inner face. CONSTITUTION:A repairing material made of low-melting point thermoplastic resin with rigidity at the ordinary temperature and formed with a cushion layer coated with an adhesive on the surface at the outside is inserted to the generation position of a pin hole 13 in a pipeline to be repaired. Heat is applied to the repairing material 16 to soften it to the degree not to impair its nature, the pressure is applied to the inner face of the softened repairing material 16 to expand it, the repairing material 16 is closely stuck to the inner face of the pipeline 12 including the generation position of the pin hole 13, and it is cooled while this state is maintained. Rigidity is recovered on the repairing material 16, the repairing material 16 is closely stuck to the pipeline 12, and the pipeline 12 can be partially repaired from its inner face.
Patent JP-S6020776-A (JP)
Title: Piezoelectric clutch
Inventor: INOUE MAKOTO
IPC: H02K7/10
Filed: 1983-07-14
Abstract: PURPOSE:To eliminate problems of leakage magnetic flux and impact noise by dividing a ring-shaped piezoelectric unit into a plurality of segments, polarizing the segments, securing a driven unit to the segments, and press-bonding drive unit through an elastic unit. CONSTITUTION:A ring-shaped piezoelectric unit 6 is divided into a plurality of segments along the circumferential direction, and the divided segments are polarized. The unit 6 is secured to a driven unit 3. One surface of the elastic member 5 is secured to the unit 6, and a drive unit 1 is press-bonded through a slider 2 having large friction coefficient to the other surface of the member 5. AC voltage of prescribed frequency is applied to the unit 6, thereby allowing slippage between the drive unit 1 and the member 5.
Patent JP-H10318648-A (JP)
Title: Constant temperature circulating equipment
Inventor: MURAMATSU YOSHIKAZU
IPC: F25D13/00
Filed: 1997-05-19
Abstract: PROBLEM TO BE SOLVED: To repair quickly a constant temperature circulating equipment and to reduce the running cost of it by constituting it with a temperature regulating part, a circulation part and a control part separated into independent units in the constant temperature circulating equipment holding a object part at set temperature circulating liquid for circulation being adjusted to the set temperature. SOLUTION: A freezing unit 12 and a circulating water unit 13 are activated by the control of a control part unit 14 and circulating liquid cooled by an external heat exchanger to the set temperature is fed to a cooling tank unit 15 and the predetermined quantity of the liquid for circulation is stored inside the unit 15. The liquid for circulation is fed to the object part by the circulation pump of a circulating water unit 13 and cools the semiconductor wafers of the object part. The liquid for circulation returning from the object part flows from an inlet pipe through the external heat exchanger to the cooling tank unit 15 with the temperature of it being regulated to the set temperature again. In case the internal pressure of the cooling tank unit 15 is started to rise, the cooling means cools the inside of the cooling tank unit 15.
Patent JP-H07329132-A (JP)
Title: Deformation preventing method at time of molding of instrument panel
Inventor: KAMIYAMA YOSHINORI
IPC: B29L31/30
Filed: 1994-06-10
Abstract: PURPOSE:To prevent the partial deformation caused by molding shrinkage of an instrument panel of a car subjected to injection molding. CONSTITUTION:A resin instrument panel 1 having an undercut structure having an air blowoff port part 1a which has attaching holes 2 for supporting an external part formed to the upper and lower wall surfaces thereof in a piercing state provided to the end part thereof is produced by injection molding. The blowoff port mold forming the inner surface of the air blowoff port part 1a is equipped with a pair of upper and lower extrusion molds 4 and the extrusion guide allowing both molds to approach and separate in an up-and-down direction. Projections 4a forming the attaching holes 2 are provided to the extrusion molds 4 and protruding parts 4b are integrally provided thereto in the panel molding shrinkage direction in the vicinity of the projections 4a. The molding shrinkage force F of the instrument panel generated when the instrument panel subjected to injection molding is extruded by the extrusion molds 4 to be demolded is dispersed by the engagement of the projections 4a and the attaching holes 2 and the engagement of the protruding parts 4b and recessed parts 7 to prevent the deformation of the attaching holes 2.
Patent JP-H0423483-A (JP)
Title: Manufacture of printed wiring board
Inventor: ARAI HITOSHI
IPC: H05K3/06
Filed: 1990-05-18
Abstract: PURPOSE:To realize one-line manufacture and to enable space reduction of a factory by attaching a photosensitive resist film to a surface of a copper clad laminated board and a surface of a through hole after performing copper plating and anticorrosive treatment. CONSTITUTION:Copper plating 3 is applied to a board 1 wherein boring for a through hole is performed. After a through hole 2 is formed, the substrate 1 is immersed into anticorrosive treatment liquid to form an anticorrosive film 6. A photosensitive resist film 5 is formed on a copper surface 3 of the board 1 whereon the anticorrosive film 6 is formed by electrodeposition coating. That is, an anticorrosive treatment film is formed as activation treatment of a copper surface after copper plating of a board, and then a photosensitive resist film is coated by electrodeposition; therefore, detrimental effect to a photosensitive resist film due to remaining ions is eliminated not only on a substrate surface but also inside a through hole. Thereby, it is possible to make a polishing device unnecessary, to realize one-line fabrication and to enable space reduction in a factory.
Patent JP-H11322860-A (JP)
Title: Production of impact-resistant acrylic polymer
Inventor: MATSUDA KAORU
IPC: C08L51/00
Filed: 1998-05-12
Abstract: PROBLEM TO BE SOLVED: To provide a pellet-formed impact-resistant acrylic polymer having excellent handleability and high rubber elastomer content and its production process. SOLUTION: This pellet-formed impact-resistant acrylic polymer contains a large number of acrylic multilayer structure polymers containing at least one rubbery elastomer layer as the inner layer and a rigid polymer layer containing methyl methacrylate as a main component as the outermost layer. The content of acetone-insoluble component containing the rubbery elastomer layer is 70-97 wt.% based on the unit weight of the pellet.
Patent JP-H09290549-A (JP)
Title: Refresh control method of volatile memory
Inventor: MIYOSHI NAOHIKO
IPC: G06F12/00
Filed: 1996-04-25
Abstract: PROBLEM TO BE SOLVED: To lower the power consumption by a method wherein only a necessary memory is refreshed when needed. SOLUTION: A controller has a CPU 1 as a main processor, a non-volatile memory (ROM) 3 in which a system program is stored, a volatile randam access memory(RAM) that can be read and written to, a font storing memory (FONTROM) 5 and others. Data received via a HOST I/F 7 are developed to dot images on a page memory that is a part of the RAM, a print start signal is issued to an engine after the development is complete. The dot images are sent to an engine part according to the synchronous signals issued from the engine. The RAM of the non-volatile memory has a large capacity, and refreshment of the page memories that are unnecessary to be refreshed is prohibited during standby time.
Patent JP-H02152792-A (JP)
Title: Band cutting machine
Inventor: FUERUDEINANTO GABATOFURAA
IPC: D06H7/12
Filed: 1989-05-24
Abstract: PURPOSE: To precisely maintain the width of a band along the band by providing a regulating means to regulate the stroke of a jacket member of a feeding cylinder based on the detected signal of a second sensing means. CONSTITUTION: When the angle of a bracket 8 relative to a turn table is changed by the twisting of a textile, the change is sensed by a sensing member 9, the corresponding control signal transmitted to a first sensing means 2 is transmitted to a control apparatus 10, the peripheral speed of a feeding cylinder 3 to the rotational speed of a turn table 1 is controlled, and the twisting of the textile is controlled thereby. In addition, the position of an upper edge of the textile to be respectively cut by a second sensing means 6 is sensed, and the detected signal is inputted in a regulating device 15. The cutting width of a band is regulated by controlling the stroke of jacket members 4, 5 by the regulating device 15.
Patent JP-H02308141-A (JP)
Title: Method for adjusting optical axis
Inventor: SHINTANI MASARU
IPC: G02B7/02
Filed: 1989-05-23
Abstract: PURPOSE:To allow the large setting of the visual field rate of a finder by aligning the optical axis in the state in which a conversion lens is inserted into a finder optical system to the optical axis of the finder optical system thereby aligning the field angle for photographing and the visual field of the finder. CONSTITUTION:The relation between an image pickup element 5 and a photographic lens system 2 is fixed by aligning the optical axis A of the photographic optical system to position either one of photographic lenses T, W and the center of the image pickup element 5. The relation between the photographic optical system and the finder optical system is then fixed by approximately paralleling the optical axis A of the photographic optical system and the optical axis B of the finder optical system and thereafter, the conversion lens 12 is inserted into the finder optical system. The inclination of the conversion lens 12 is aligned to the optical axis B of the finder optical system to fix the relation between the finder optical system and the conversion lens 12 in the state of being inserted therein. The easy adjustment of the optical axes of the photographic optical system and the finder optical system is possible in this way and the setting of the large visual field rate of the finder is possible as well.
Patent JP-H0424096-A (JP)
Title: Controller of sewing machine
Inventor: ISHIWATARI MASAHIRO
IPC: D05B19/00
Filed: 1990-05-21
Abstract: PURPOSE:To control each part of a sewing machine and indicate it rapidly and properly by a method wherein set analog value is converted to digital and stored in primary memory, and content of corresponding control data memory is converted from digital to analog to drive each part of the sewing machine. CONSTITUTION:Analog set value from analog value setting VR1 is converted to digital value by analog-digital converter A/D 2, and stored in primary memory 4 in CPU 3. With this digital value as address, display and driving output data subdivided as needed is fetched from control digital memory 5, indicated by display means LED 6, and converted to analog value by digital-analog converter D/A 7 to drive each part of a sewing machine. Thus, specified value is set rapidly, and indication of specified value and driving of each part of the sewing machine are performed by digital value subdivided as needed and corresponding analog value, with resulting proper performance.
Patent JP-H02308631-A (JP)
Title: Data writer
Inventor: WAKABAYASHI AKIO
IPC: H04B10/112
Filed: 1989-05-23
Abstract: PURPOSE:To execute data write at a remote and optional location by converting transmission information into an optical signal and sending the result. CONSTITUTION:Prior to data write, the operator inputs information to be sent from an input means 65 of a data input device 63. The input information is sent to a transmission information constitution means 70 and the constituted transmission information is sent to a transmitter 64. At data transmission, the operator operates the switching means 71 of the transmitter 64 toward a receiver 62 provided on a write object. The transmission information from an input device 63 is converted into a signal capable of transmission by signal conversion means 73, 74 and an output signal is converted into an optical signal by a photoelectric conversion means 75 and the resulting signal is emitted to a line. The write object receives the optical signal from the transmitted 64 and it is converted into an electric signal and written in a storage means.
Patent JP-S63294085-A (JP)
Title: Picture processing method
Inventor: YAMAGAMI MIGAKU
IPC: H04N19/117
Filed: 1987-05-26
Abstract: PURPOSE:To select and execute a suitable processing according to a status by providing a digital signal processing circuit or the like, executing a low pass filter operation according to and animation picture or a still picture and forming a field signal according to respective cases. CONSTITUTION:Initially, whether a frame picture stored in a frame memory 10 is the animation picture or the still picture is decided by a CPU, when the frame picture is the still picture, the digital signal processing circuit 12 applies the low pass filter processing to the longitudinal direction of the frame picture. Thereafter, one field signal is taken out and outputted, and when it is the animation picture, the low pass filter processing is not applied but one file field signal is taken out and outputted. The outputted signal is to a recorder or a transmitter 14, the transmitter 14 processes a signal for recording or transmitting to the received field signal, thereafter records on a recording medium such as a magnetic tape, a magnetic disk and transmits to a transmission path such as a telephone line. Thereby, the suitable processing according to the status can be selected and executed.
Patent JP-S619179-A (JP)
Title: Power and speed controller with circuit for preventing rotation stop upon starting of induction motor by thyristor and triac
Inventor: ISHINO YOSHIKAZU
IPC: H02P1/42
Filed: 1984-06-25
Abstract: PURPOSE:To smoothly control power and speed of an induction motor by providing a circuit for preventing a rotation locking phenomenon occurred at starting time. CONSTITUTION:A current sensor (1) or (11) is provided in a power and speed controller by a thyristor and a triac. A current of several times of normal current flowed at starting time, a phase control time by a trigger circuit (3) cooperated with a timer (2) is minimized or a control is eliminated, or a bypass circuit (4) cooperated with the timer is turned ON to stop the phase control. The phase control is recovered at a time when an induction motor arrives at the normal rotation by the timer, or the bypass circuit is turned OFF to recover the phase control. Thus, a difficulty of starting the motor can be eliminated.
Patent JP-S63296102-A (JP)
Title: Plant control system
Inventor: KANAZAWA IZUMI
IPC: H04Q9/02
Filed: 1987-05-28
Abstract: PURPOSE:To detect the fault of a system generated in a transmission processing suspended area, by attaching a function to decide a state when a transmission processing suspended period exceeds a prescribed limit time as abnormality in an electronic computer side. CONSTITUTION:A system is constituted so that the abnormality even in the transmission processing suspended area is monitored by a transmission abnormality detecting part 11b, and a switching command to a switching circuit part 11a in its operating quantity switching circuit 11 can be supplied when the abnormality is generated. In other words, a duration (residence time) is measured in the suspended area of a transmission processing between a digital control circuit 5 and a personal computer 1, and when that time exceeds the prescribed limit time set in advance, the fact is decided as the abnormality in the personal computer 1, and alarm is issued and displayed to the operator when the abnormality is generated. In such a way, it is possible to detect the abnormality in the personal computer 1 side even in the suspended period of the transmission processing by setting the limit time at a time larger than the largest suspended time at the time of performing the normal operation of the system, and to perform the switching of a prescribed quantity of plant operation, and also, to recognize the state of a plant.
Patent JP-H01299428-A (JP)
Title: Vibration-type transducer and manufacture thereof
Inventor: IKEDA KYOICHI
IPC: G01H13/00
Filed: 1988-05-27
Abstract: PURPOSE:To obtain a high removal ratio of an excitation component and thereby to obtain a stable frequency output signal, by dividing the main body of a vibrator into two first vibrators i.e. for excitation and for detection of an electromotive force and by coupling the thickest parts of vibrations of these two vibrators mechanically by a second vibrator. CONSTITUTION:The main body 24 of a vibrator of an excitation-type transducer is constructed of first vibrators 26A and 26B and a second vibrator 27 made of P-type silicon on a diaphragm 25 formed of an N-type silicon single crystal, and the vibrators 26A and 26B are held in a recessed part 28 formed on a crystal surface on the upper side of the diaphragm 25. The vibrator 27 is coupled to the central parts of these vibrators 26A and 26B, and output terminals of an input transformer 33 functioning as an exciting means input terminals of an output transformer 36 functioning as an excitation detecting means are connected to electrodes 29, 30 and 31, 32 provided in the opposite ends of the vibrators 26A and 26B, respectively. While the output of the transformer 36 is delivered through an amplifier 39, it is fed back to the input side of the transformer 33, and thereby a high removal ratio (S/N ratio) of an excitation component is obtained.
Patent JP-S63296463-A (JP)
Title: Image communication device
Inventor: KIMURA NORIO
IPC: H04N1/46
Filed: 1987-05-28
Abstract: PURPOSE:To transmit an image without losing a gradation by being provided with a means to convert input image data to binarization data having a gradation and a control means to determine whether or not a binarization conversion means is used after detecting the spatial luminance distribution of the input image data. CONSTITUTION:A dithered circuit 10 forms transmittable binary data in the ordinary procedure of a facsimile, and in such a case, the circuit forms image data having a gradation with the use of the dithered matrix of a Bayer system, etc. A CPU 8 investigates the luminance distribution of the image data stored in an image memory 4. A binarization conversion is made by the dithered circuit 10 in case of the image data having a gradation, and by a binarization circuit 11 in case of the image data not having a gradation, the binarization is made and the change-over is made by switches 9 and 13. Thus, in a character original, etc., a processing speed can be improved with the use of an ordinary binariziang processing, and on the other hand, an image transmission can be made to the opponent station without losing the gradation in the image transmission.
Patent JP-S5831547-A (JP)
Title: Bonding device
Inventor: YAMAGUCHI MASAYOSHI
IPC: H01L21/60
Filed: 1981-08-19
Abstract: PURPOSE:To obtain a bonding device which can suitably alter the lifting height of a capillary and a bonding curve by driving a rockable arm by a linear motor. CONSTITUTION:A linear motor 11 is constructed to reciprocate a movable coil 15 in directions of arrows by the magnetic force of a permanent magnet 12 and a magnetic force produced when a current flows through the coil 15. When a forward current is flowed through the coil 15 of the motor 11, the coil 15 is projected from a yoke 12, and a rockable arm 18 is rotated counterclokwise around a shaft 17 as a center. Accordingly, a capillary 21 is lowered, and the ball 20a of a wire 20 is bonded to a pellet 22. Then, a reverse current is flowed through the coil 15 to raise the capillary 21, and when the forward current is again flowed, the capillary 21 is lowered, thereby bonding a wire 20 to a led frame 23. When this cycle is repeated, a bonding work can be continuously performed.
Patent JP-H07318706-A (JP)
Title: Light control lens sheet, surface light source and transmission type display
Inventor: TAKEUCHI MICHIKO
IPC: G02B6/00
Filed: 1994-05-20
Abstract: PURPOSE:To a light control lens sheet which is uniformly bright and features good light utilization efficiency and a surface light source and transmission type display to be used therefor as a back light to be used for the transmission type display, such as liquid crystal display element. CONSTITUTION:This light control lens sheet 1 is constituted by two sheets of saw tooth type linear Fresnel lenses 21, 22 which consist of triangular columnar prisms having an unequal leg triangle shape in section and have respectively light refraction angles of the same angle on each other in directions reverse from each other. This surface light source is constituted by superposing such light control lens sheet 1 on the exit surface side of the surface light source of an edge light type or perpendicular falling type which releases diffused light. This transmission type display is constituted by arranging such surface light source on the rear surface of the display of a transmission type.
Patent JP-H06342449-A (JP)
Title: Data rearranging circuit and high-speed fourier transform circuit
Inventor: OKUYA SHIGEAKI
IPC: G06F17/14
Filed: 1993-06-01
Abstract: PURPOSE:To enable the parallel processing of input data with simple hardware configuration by using the fast Fourier transforming circuit which uses the data rearranging circuit. CONSTITUTION:A cross switch 100 is provided with delay circuits 101 and 102. Each time (q) pieces of data are received at respective lines, the data separated for every B<r> are outputted to B pieces of input lines by a delay cross switch 10 which directly connects the respective lines or switches the direction of the cross switch 100 to be exchanged, a delay shuffle means 1a... in charge of the B pieces of input lines and the B pieces of output lines with B/2 pieces of delay cross switches 10, and delay shuffle network 1 for shuffling data transmission while serially connecting M steps of delay shuffle means 1a... and taking in the charge of input and output lines separated just for B/2<m> by every delay cross witch of the m stage, and when the data are parallelly inputted just for the B pieces, the data separated for every B<r-1> are outputted to the B pieces of output lines in parallel just for B pieces.