baber/WOPTO huggingface dataset:
Patent JP-H03147521-A (JP)
Title: Optical disk recording and reproducing system
Inventor: ITO MASAKI
IPC: G11B7/005
Filed: 1989-11-01
Abstract: PURPOSE:To heighten recording density even when the same recording film is used by forming the track guide pitch of an optical disk at an outer peripheral side less than that at an inner peripheral side, and reducing the shape of an optical beam spot for recording/reproduction in a radius direction at the outer peripheral side. CONSTITUTION:A central hole 2 used in rotation is provided in the center of the optical disk 1, and track guides 3 are provided in concentric circle shape centering the central hole 2, and the disk is rotated at constant angular velocity. And the track guide pitch P1 at the outer peripheral side is formed less than the track guide pitch Po at the inner peripheral side of the optical disk 1. Therefore, since it is possible to increase the number of tracks by such share that the track guide pitch P1 at the outer peripheral side is reduced, the recording density can be heightened. Also, the optical beam spot B at the outer peripheral side is formed in an ellipse with a short radius direction only to cover the track guide pitch P1. Thereby, the recording density can be improved.
Patent JP-H02134092-A (JP)
Title: Phase correction circuit for television signal
Inventor: SHIKINA TOMOYOSHI
IPC: H04N9/77
Filed: 1988-11-15
Abstract: PURPOSE:To use only one memory for the purpose by applying write reset with a reset signal being the result of ANDing a color phase reset pulse and a horizontal phase reset pulse from an input signal and applying readout reset with a reset signal being the result of ANDing a color phase reset pulse and a horizontal phase reset pulse from a reference signal. CONSTITUTION:A write control means 4A uses a clock signal generated from an input signal inputted from an input terminal Ta as a write clock of a FIFO memory 8 and uses a reset signal being the result of ANDing a color phase reset pulse and a horizontal phase reset pulse obtained from an input signal to apply write reset of the FIFO memory 8. A readout control means 6A uses a clock signal generated from a reference signal inputted from an input terminal Tb as a readout reset signal of the FIFO memory 8 and uses a reset signal being the result of ANDing a color phase reset pulse and a horizontal phase reset pulse obtained from the reference signal to apply readout reset of the FIFO memory 8. Thus, only one FIFO memory 8 is enough for the purpose and the memory capacity is reduced.
Patent JP-S63139729-A (JP)
Title: Forming device for stereoscopic shape
Inventor: MORIHARA TAKASHI
IPC: B29C67/00
Filed: 1986-12-03
Abstract: PURPOSE:To equalize the distribution of irradiation energy of the whole picture elements, and to form a pattern having few irregularities and in uniform curing thickness by shaping the width of one picture element in width corresponding to the recording width of three or more of scanning lines. CONSTITUTION:A picture element 20 constituting a stereo-shaped pattern is formed by three scanning lines a1, a2, a3 by laser beams. Unit recording width corresponding to a beam diameter and irradiated by one scanning line is represented by (w). That is, the picture element 20 has the width of treble as large as the unit recording width (w) corresponding to one scanning line in the by-scanning direction. Exposure timing is controlled so as to apply beams treble as long as (w) in the main scanning direction.
Patent JP-S62137206-A (JP)
Inventor: ROBAATO MAKUKURADEI AREN
IPC: B60C15/04
Filed: 1986-12-03
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-H03149390-A (JP)
Title: Starting method for scroll compressor
Inventor: YAMAMURA MICHIO
IPC: F04C18/02
Filed: 1989-11-02
Abstract: PURPOSE:To facilitate the starting of a compressor by energizing it to a discharge passage of compressed gas in a discharge port of a compressive mechanism or the neighborhood in a direction leaving a space between a discharge valve seat and a discharge valve body by dint of gravity or spring force, while installing a discharge check valve around this discharge valve body. CONSTITUTION:Refrigerant gas is guided to the outside of a compressor from a discharge pipe 61 after passing through discharge passages 55, 56 from a discharge port 48 formed downward by way of a discharge valve seat 49 installed in this discharge port, a discharge valve body 50 being opposed to this seat at an interval and a discharge check valve 52 forming a discharge check valve passage 51 in this circumference, via a compressive working space 14 from a compressive mechanism 2. When a refrigerator is stopped for hours and so on, a large quantity of refrigerant liquid is stored in the compressor. If it is rotated in reverse of normal rotation at low speed in this state, the liquid in the compressor flows toward the compressive mechanism 2 from the valve 52. Since a rate of liquid in the passage 51 around the valve body 50 is not large enough, however, there is no pressure loss, insomuch that it presses the valve seat 49 against gravity of the valve body 50, and the liquid flows back and is stored in an accumulator 46.
Patent JP-S62145908-A (JP)
Title: Microwave power amplifier
Inventor: FURUYA OSAHISA
IPC: H01P5/18
Filed: 1985-12-20
Abstract: PURPOSE:To obtain a monitor circuit with an excellent characteristic while reducing the effect onto an output of a power amplifier by providing a window to an output coaxial line of a microwave power amplifier circuit, coupling a power monitor strip line and containing the monitor circuit to other case. CONSTITUTION:A microwave power amplifier circuit output is led to a coaxial line 27 and coupled to an external circuit by a coaxial plug 24. The coaxial line 27 has a throughhole to a case 32 and an inner conductor 30 and a support member 31 are inserted to the throughhole. A thin and long window 35 is opened to the outer wall of the said throughhole at the side containing a power monitor circuit, a coupling line 20 comprising the microstrip line is arranged near the window 35 and part of the power amplifier output is extracted. As a result, the effect on the power amplifier output by the insertion of the monitor circuit is small and the monitor circuit is contained in other case, then the monitor circuit is coupled with the power amplifier circuit through the window 35 only and the monitor circuit with flat frequency characteristic is constituted.
Patent JP-S62145905-A (JP)
Title: Modulator
Inventor: TAKENAKA SADAO
IPC: H03C1/62
Filed: 1985-12-20
Abstract: PURPOSE:To obtain a constant modulated wave output by detecting an amplitude difference component between the modulated output level and a modulation signal level in a modulator using an analog multiplier and using a difference signal between the difference component and an operating point setting value so as to adjust the gain. CONSTITUTION:The modulation analog multiplier 2 uses a modulation signal VS from an input terminal 1 so as to modulate a carrier VC from a carrier oscillator 3. A modulated wave VAM is sent to an output terminal 4. A variable gain amplifier 5 controls the input level of the analog multiplier 2 to set the operating point automatically. A detection circuit 6 detects an output level of the modulated wave and an output level of the modulation signal to detect the difference component of the amplitude and the gain of the variable amplifier 5 is adjusted by using the difference with the reference setting value of an operating point setting circuit 7 through the application of the difference component to a control section 8, then the operating point of the modulator in matching with the external condition is set automatically to always obtain the modulated wave output of a constant level.
Patent JP-2000094305-A (JP)
Title: Grinding device
Inventor: KOBAYASHI KAZUO
IPC: B24B37/00
Filed: 1998-09-25
Abstract: PROBLEM TO BE SOLVED: To provide a grinding device of compact design, capable of providing wafers which are excellent in surface flatness. SOLUTION: Lower surface plates are provided as circles arranged at equal intervals on a concentric circle around an O-point, and loading-unloading stages 18 for wafers or loading stages an unloading stages for wafers, and the n-th order grinding stages are provided on the lower surface plates. Shafts which can rotate horizontally around the O-point are provided in the vertical direction of a base 19, and index heads are provided at the tops of the shafts. In this case, wafer chuck mechanisms, the number of which is equal to the number of stages namely (n+1 or n+2, or a multiple of those), and which are supported on the rotatable shafts, are provided on the undersurface of the index heads.  Upper surface plates are provided on a concentric circle and at equal intervals on concentric circles having the same radiuses as those of the concentric circles of the lower surface plates, and on the underside of the index heads and the side surfaces of the shafts supporting the index head undersurfaces, partition walls the number of which equal to n+1 or n+2, for separating adjacent grinding stages during grinding the wafers, are provided so that they are hung down.
Patent JP-H09128797-A (JP)
Title: Optical pickup
Inventor: UBUSAWA MINORU
IPC: G11B7/085
Filed: 1995-11-06
Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup capable of recording or reproducing plural kinds of disks different in optical path length from a light source to a disk recording surface with simple constitution. SOLUTION: This pickup is the device capable of recording or reproducing plural optical disks with different optical path lengths from the light source to the disk recording surface, and when the kind of the optical disk is changed, by switching holes 17A, 17B with different sizes in a shutter 17, and switching a stop amount of laser light, which is made incident on an objective lens 15, the light is converged on the disk recording surface even when the kind of the optical disk is changed, and the optical pickup with interchangeability is realized with relatively simple constitution.
Patent JP-S62146050-A (JP)
Title: Synchronization reproducing circuit
Inventor: IWASHIMA MAKOTO
IPC: H04L27/227
Filed: 1985-12-20
Abstract: PURPOSE:To improve the reliability of a demodulating operation by shifting the level of the output differential signal of a phase comparator to control an analog switch and correcting a delay time generated there to resolve the DC offset and generating a subcarrier signal for demodulation having an accurate phase difference from an input 2n-phase PSK signal. CONSTITUTION:Output signals a1 and a2 from phase detectors 12 and 13 are supplied to differential amplifiers 4A and 4B respectively. The signal a1 is converted to signals a11 (non-inverted signal) and a12 (inverted signal) and become signals b11 and b12 by a level shifting circuit 5A and these signals become signals c11 and c12 through a delay amplifier 8A and are supplied to the terminals 6AA and 6AB of an analog switch 6A. Signals b11 and b12 are used as control signals of a switch 6B as well. The signal a2 is subjected to the similar processing. The delay quantity of delay amplifiers 8A and 8B is made equal to a propagation delay quantity generated in switches 6A and 6B. Output signals G2 and G1 from switches 6A and 6B are added by an adding circuit 7 to become a phase error signal G3, and this signal G3 has the noise eliminated by an LPF 15, and the oscillation phase is so controlled by a voltage controlled oscillator VCO 16 that the amplitude of the signal G3 is in the zero level, thus stabilizing the phase difference between the carrier wave and the subcarrier.
Patent JP-H03150085-A (JP)
Title: Controller of servomotor with reduction gear
Inventor: ITO MASAHIKO
IPC: H02P29/00
Filed: 1989-11-06
Abstract: PURPOSE:To suppress the vibration of a load by using a detector not lowering the rigidity of a shaft as a detector, which suppresses a speed variation and torque variation through a reduction gear and detects the rotational speed of the output shaft of the reduction gear. CONSTITUTION:When a speed variation and torque variation take place, a variation component generated depending upon the number of revolutions of the output shaft of a survomotor 1 is included in the voltage signal outputted from a frequency-voltage converter 6. An electronic circuit 7 especially takes out only a speed variation component, which is the main cause of the vibration of a load, by a band-pass filter to feed back the component to the current loop system of a feedback control circuit 5. Thus, it is possible to suppress the speed variation or torque variation of the output shaft 8 of a reduction gear 2. Also, a second speed detector 4 does not lower a shaft rigidity by the use of a semiconductor magnetic sensor, etc., at the time of detecting the rotational speed of the output shaft 8 of the reduction gear 2.
Patent JP-H10116052-A (JP)
Title: Picture display device
Inventor: SAKAGUCHI YASUO
IPC: G09G3/20
Filed: 1996-10-09
Abstract: PROBLEM TO BE SOLVED: To easily observe the picture of a picture display device under any visual field environment by accurately obtaining the adaptability of the visual sense of an observer, who is observing the environment, from the luminance of the entire picture in the environment. SOLUTION: First, a visual field environment picture is generated and the observing point of the picture is specified. Then, the luminance of the picture is weighted integrated by a prescribed function centered around the observing point and the adaptability of the visual sense of the observer is computed when he observes the observing point of the visual field environment. Moreover, when the observer observes the display device at the adaptability, the relationship between the variables, that determines the display conditions in which the picture is best observed, and the adaptability is stored at the compensation characteristics. Then, the variable value corresponding to the obtained adaptability is determined from the characteristics, the display conditions of the picture are compensated for based on the value and the compensated picture is outputted to the display device.  Thus, the picture of the display device is easily seen under nay adaptability.
Patent JP-S62147790-A (JP)
Title: Phase-locked array semiconductor laser
Inventor: TATENO KIMIO
IPC: G11B7/127
Filed: 1985-12-23
Abstract: PURPOSE:To obtain a far-field pattern of single peak by applying thin films which offer phase shift of lambda/2 on every other oscillation edge planes. CONSTITUTION:On an edge plane 4 of phase-locked array laser, thin films 5 which causes phase shift of lambda/2 are applied on every other light emitting points to make a phase 6 of a wave front of a projected beam flat. For example, there is a method in which SiO2 is applied by sputtering and this is easy. The thickness is determined so that an optical path length, i.e. a refractive index multiplied by the thickness becomes equal to lambda/2. If the phase becomes flat by such a method, a far-field pattern 7 of the projected beam becomes what has a single peak. If this is applied to an optical system in a laser beam printer or an optical disc, the beam of extremely high output can be obtained with high efficiency.
Patent JP-H05129223-A (JP)
Title: Manufacture of semiconductor device
Inventor: EGUCHI YOSHIKAZU
IPC: H01L21/768
Filed: 1991-11-01
Abstract: PURPOSE:To form a good barrier metal by a simple process wherein foreign matters are generated little in a wiring formation process of a semiconductor device. CONSTITUTION:After a high melting point metal film is deposited above a semiconductor substrate 101, the high melting point metal film is nitrified 104 by nitrogen plasma and an oxide film 105 of a high melting point metal is formed on a surface of the nitrified high melting point metal by oxygen plasma. A two-layer structure barrier metal is formed in this way. Thereafter, a metal film 106 of low resistance is deposited and patterned to complete a wiring.
Patent JP-H03150444-A (JP)
Title: Sample inspecting device
Inventor: MIYAMOTO MORITOSHI
IPC: G01N15/14
Filed: 1989-11-07
Abstract: PURPOSE:To take a measurement by statistical processing in a short time with high accuracy by making a horizontal scan plural times with a laser beam following one particle to be inspected. CONSTITUTION:This device is provided with detecting means 6-8 which detect one particle to be inspected passing a 1st irradiation position A, moving means 11 and 4 which move the laser beam L to the 2nd irradiation positions B-C after the detecting means 6-8 detect the passage, and scanning means 3 and 4 which makes a two-dimensional scan with the laser beam L in the flow direction of fluid as the particle to be inspected moves after the 2nd irradiation positions B-C. When the passage of one of particles to be inspected in the fluid at the 1st irradiation position A is detected, the laser beam L is moved to the 2nd irradiation positions B-C, from which a scan is made in the direction perpendicular to the flow and in the flow direction following the particles to be inspected; and obtained scattered light or fluorescent light is measured to analyze the object particle. Consequently, the measurement is performed in a short time with high accuracy.
Patent JP-H02135580-A (JP)
Title: Method and device for signal processing of bar code reader
Inventor: SHIMIZU MASAHARU
IPC: G06K7/00
Filed: 1988-11-16
Abstract: PURPOSE:To read both thick and thin bar codes by means of a single bar code reader by judging whether the read bar code is the thin bar or the thick bar, and accepting the data processed by means of suitable cut-off frequencies for each case. CONSTITUTION:Laser beams is projected on a bar code 18 by the operation of a polygon mirror 14, an analog current signal obtained by a light receiver 20 is converted and amplified to the analog current signal by a current/voltage converting amplifier 22, and a prescribed high frequency component is interrupted by a cut-off frequency switching amplifier 24. For the cut-off frequencies, the first cut-off frequencies and the second cut-off frequencies are switched at every scanning. Thus, when the thick bar is used, the bar code is decoded only by the data processed by the first cut-off frequencies for the thick bar, and when the thin bar is used, the bar code is decoded only by the data processed by the second cut-off frequencies for the thin bar, and thus any bar code can be read.
Patent JP-H01127574-A (JP)
Title: Winding device for constant tensile tape
Inventor: YATABE TADAO
IPC: B65H81/06
Filed: 1987-11-13
Abstract: PURPOSE:To wind up a tape while keeping a constant tensile force at all times by providing a sensing means for sensing the reducing quantity of the tape and a braking-force gradually increasing means for increasing the braking force of a tape pad in accordance with the sensed reducing quantity, on a flier for supporting the tape pad. CONSTITUTION:When a tape 2' is set in a winding starting condition, the screw of the adjusting mechanism 17 of a lever piece 13 is adjusted drawing a brake band 16 toward a brake drum 15, to set an initial braking force. Then, as the winding of the tape 2' onto a wire member 20 is started, accompanying the reduction in the diameter of a tape pad 2, a guide roll 11 on an arm 9 side is moved to the 11' side as shown by the dotted line while also moving the arm 9, and a roller 18 rollingly moves slidingly on the contact face 13a of the lever piece 13. The shape of the contact face 13a is formed in such a way that, the free end portion of the lever piece 13 pulls the band 16 as the roller 18 is moved, and that the increase in the pulling degree is exactly matched with the increasing ratio of the braking force required for making the tensile force of the tape constant accompanying the reduction in the diameter of the tape pad 2.
Patent JP-H09103380-A (JP)
Title: Shutter type bathtub lid
Inventor: MIURA MASAYOSHI
IPC: A47K3/00
Filed: 1995-10-11
Abstract: PROBLEM TO BE SOLVED: To reduce the weight of a bathtub lid, and at the same time, improve the heat-resistance by a method wherein, for a shutter type bathtub lid consisting of a band-shaped molded article for which long thin hollow bar-shaped members and a band-shaped piece for connection are simultaneously extruded, the hollow members are made of a polypropylene based resin, and the band-shaped piece is formed of an ethylene-vinyl acetate copolymer based resin, etc. SOLUTION: Flexible band-shaped bodies 3 at the ends in the longitudinal direction of a band-shaped molded article for which a long thin hollow bar- shaped members 1 and a band-shaped body 3 made of a flexible synthetic resin, which connects the long thin hollow bar-shaped members 1, are simultaneously extruded, are superposed, and heat-welded by a high-frequency inductions heating to connect the ends to each other, and a desired bathtub lid is constituted. In this case, for the band-shaped body 2 for connection, an ethylene-vinyl acetate copolymer(EVA), ethylene-ethyl-acrylate(EEA), or a mixture of them is used as a polyolefin elastomer. Then, the long thin hollow members 1 made of a hard polypropylene resin or a low expanded polypropylene resin, and the band- shaped body 3 for connection made of the above polyolefin elastomer are simultaneously extruded.
Patent JP-H08143216-A (JP)
Title: Copy system
Inventor: FURUKAWA HIDEAKI
IPC: B65H39/115
Filed: 1994-11-22
Abstract: PURPOSE: To provide a copy system by which an output paper sheet by an ordinary copy device is sorted following to a page order, even if it is connected to either one of a work station and FAX and above sorting can be carried out adequately in compliance with an use. CONSTITUTION: A copy system is provided with an image recorder 1 for outputting the image record on a paper sheet and a sorter 2 for sorting the output paper sheet. A page order by which the output paper sheet is outputted is memorized to RAM 8 of an image forming device and the sorting unit of the sorter 2 is controlled to the sorting way of a mode responding to a page order by controllers 5, 9. A transportation responding to above sorting way is carried out by the controller 10 in an automatic copy carrying device 3.
Patent JP-H03149984-A (JP)
Title: Image encoding device
Inventor: MATSUZAKI KAZUHIRO
IPC: H04N7/36
Filed: 1989-11-06
Abstract: PURPOSE:To prevent the local deterioration of a picture quality by switching a quantizing characteristic control signal to a control unit by a selector in accordance with magnitude of the information generation quantity. CONSTITUTION:An encoding control part 7a inputs the present buffer accumulation quantity from a transmitting buffer 6, and outputs a first normalized information quantity being independent from a video rate and a frame rate to the generation information quantity of every (n)XQB by a first normalized information quantity generating means 76. On the other and, by a second normalized information generating means 77, a second normalized information quantity is outputted to generation information of every one fame, and in the case the generation information quantity is comparatively small, the encoding control of a frame unit is executed by selecting a second quantizing characteristic control table 79 by a selector 80, and on the contrary, in the case the generation information quantity is large, the encoding control of a frame unit is suspended by selecting a first quantizing characteristic control table 78, the control of an (n)XQB unit and a quantizing characteristic control signal is outputted. In such a way, the local deterioration of a picture quality is prevented.