baber/WOPTO huggingface dataset:
Patent JP-2002218281-A (JP)
Title: Television receiver
Inventor: GOTANDA TSUTOMU
IPC: H04N5/14
Filed: 2001-01-17
Abstract: PROBLEM TO BE SOLVED: To solve a problem that a slanting line looks ragged when picture quality correcting processing is performed to the slanting line in picture quality correcting processing. SOLUTION: In the television receiver provided with an interlace/progressive converting device, which has a slanting correcting processing for performing slanting correcting processing, for performing interlace/progressive conversion to an inputted interlace signal and a picture quality correcting processing circuit for performing picture quality correcting processing such as horizontal high frequency intensifying processing or version high frequency intensifying processing to a progressive signal outputted from the interlace/progressive converting device, by providing a signal expanding circuit for expanding a signal outputted from the slanting correcting circuit existent inside the interlace/ progressive converting device, picture quality correcting processing, with which the slanting line does not become ragged, can be performed.
Patent JP-2002217643-A (JP)
Title: Temperature compensated voltage generating circuit of crystal oscillator
Inventor: FUJITA NORIYUKI
IPC: H03B5/04
Filed: 2001-01-17
Abstract: PROBLEM TO BE SOLVED: To realize highly accurate temperature compensation by compensating for the linearity of f-V characteristics of a varactor diode constituting a temperature compensated crystal oscillator, thereby keeping the linearity of output oscillation frequency for the control voltage as a high accuracy VCO. SOLUTION: A compensation voltage generated from a temperature compensated voltage generating circuit 11, comprising a primary voltage generating circuit 9 and a tertiary voltage generating circuit 10, is applied to a varactor diode 5 in order to vary the equivalent capacitance, and a frequency variation in the oscillation loop caused by variation of the equivalent capacitance is offset the temperature characteristics of frequency of an AT cut crystal oscillator 6.  In the temperature compensated crystal oscillator of such an arrangement, the primary voltage generating circuit 9 is provided with a gain control amplifier 18a for controlling the output voltage thereof, the tertiary voltage generating circuit 10 is provided with a gain control amplifier 18b for controlling the output voltage thereof, and the gain of the gain control amplifiers 18a and 18b is controlled by the output voltage level of an AFC circuit 13.
Patent JP-2001255895-A (JP)
Title: Voice coding method and voice decoding method
Inventor: TANAKA YOSHIAKI
IPC: G10L19/02
Filed: 2001-01-18
Abstract: PROBLEM TO BE SOLVED: To normally conduct reproducing at a reproducing side even though multichannel data are selectively transmitted in a compressed or a noncompressed manner and down mixing at the reproducing side is selectively permitted or inhibited. SOLUTION: ATSI includes first and second identifiers. The first identifier indicates whether the multichannel data in an audio packet are compressed or not. The second identifier indicates whether to permit down mixing of the data into stereophonic two channels or to inhibit it.
Patent JP-2002210585-A (JP)
Title: Method for butt-welding thin sheet material
Inventor: KODAMA KATSU
IPC: B23K31/00
Filed: 2001-01-19
Abstract: PROBLEM TO BE SOLVED: To provide a butt-welding method with which low straining can be achieved while stabilizing quality of a welded product. SOLUTION: This butt-welding method is performed with which after tack- welding supports 11 for reducing the strain at the welding portion in a thin sheet 1, the butt-welding is applied to thin sheet 1 and the welded deformation is prevented, the welded strain is restrained and the quality is stabilized, and thus, the low straining can be obtained.
Patent JP-2001298932-A (JP)
Title: Detector for motor magnetic pole position
Inventor: NAKAJIMA YUKI
IPC: H02K11/00
Filed: 2001-01-19
Abstract: PROBLEM TO BE SOLVED: To provide a detector for motor magnetic pole position, capable of reducing the out-of-phase of an output signal using a magnetic sensing device. SOLUTION: This detector is magnetized by magnetic flux from each of magnets 15 of opposite polarity of a rotor 17 where the magnets 15 are disposed alternately, and is formed with iron pieces 25 on the end of the rotor 17 in the axial direction. The magnetic sensing device 27 which stands face to face with the iron pieces 25 and senses magnetic flux from the iron pieces 25 is fixed inside a detector case. A magnetic-flux loops are generated intensively at the ends of the respective iron pieces 25.
Patent JP-2002217806-A (JP)
Title: Automatic gain control circuit
Inventor: SHIMIZU SUKEYUKI
IPC: H04B1/26
Filed: 2001-01-23
Abstract: PROBLEM TO BE SOLVED: To provide an automatic gain control circuit, in which a demodulator side needs only one an A/D converter for detecting an input signal level. SOLUTION: The gains of variable gain amplifiers 1, 4, 7 and 10 on a first stage are controlled by a first automatic gain control voltage which is the detection output voltage of a detection circuit 17, the gain of a variable gain amplifier 24 is controlled by a second automatic gain control voltage being the detection output voltage of a detection circuit 27, an input level is decided on the basis of voltage obtained by adding, by an adder 43, the first automatic gain control voltage and the second automatic gain control voltage (whose gain/automatic gain control voltages) are made the same by arithmetic circuits 20 and 42, and the gains of variable gain amplifiers 2, 5, 8 and 11 for diversity are controlled on the basis of the decided input level.  Then, the added output voltage of the adder 43 decides on the input level to a demodulator 40, and thereby only one A/D converter for performing A/D conversion of a signal for input level decision is needed.
Patent JP-2002223028-A (JP)
Title: Semiconductor light emitting device
Inventor: KIKAWA TAKESHI
IPC: H01S5/028
Filed: 2001-01-24
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor light emitting device which is suitable for a high-output semiconductor laser device at an oscillation wavelength of 600 to 700 nm in an optical information system, or a semiconductor laser device at an oscillation wavelength of 1.47 to 1.62 μm in an optical communication system. SOLUTION: A laminated film composed of first dielectric films 14 at a low refractive index and second dielectric films 15 whose refractive index is higher than that of the films 14 is provided on at least one side face of an optical resonator. The second dielectric films are formed as amorphous dielectric films composed of hydronitric silicon.
Patent JP-2002223174-A (JP)
Title: Tuning circuit
Inventor: KAWAI KAZUO
IPC: H03J3/06
Filed: 2001-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a small-sized tuning circuit with a simple circuit configuration at a low cost the Q of which can be set to a desired high value. SOLUTION: The tuning circuit is configured by connecting a negative resistance circuit consisting of a negative impedance converter NIC and a variable resistor VR in series with a resonance circuit comprising an inductor L and a capacitor C. A counter CUNT counts a clock from a clock signal generating circuit CLK, a digital/analog converter DAC converts the count into an analog signal, which controls the negative resistance circuit to be oscillated by bringing the effective resistance of the tuning circuit to a negative resistance to change the negative resistance into a positive resistance. When the effective resistance reaches zero, the oscillation is stopped and when the Q reaches a prescribed value, the clock is stopped and a latch circuit LAT latches the final count (Q).
Patent JP-2002228291-A (JP)
Title: Absorption refrigerating machine
Inventor: TAKAHATA SHUZO
IPC: F25B49/04
Filed: 2001-01-30
Abstract: PROBLEM TO BE SOLVED: To provide a reverse-cycle type threefold or quadruple absorption refrigerating machine which is improved further in efficiency and can be operated stably with a desired cooling capacity even when a load change occurs. SOLUTION: This absorption refrigerating machine is provided with three stages of low-, intermediate-, and high-temperature regenerators 2, 3, and 4 which are connected in series, an intermediate liquid by-passing pipe 43 which directly returns the remainder of an intermediate absorption liquid obtained by means of the low-temperature regenerator 2 to an absorber 1 so that only a prescribed proportion of the intermediate absorption liquid may be fed to the intermediate-temperature regenerator 3 by means of an intermediate liquid pump 12, and a dense-liquid by-passing pipe 46 which directly returns the remainder of a dense absorption liquid obtained by means of the intermediate- temperature regenerator 3 to the absorber 1 so that only a prescribed proportion of the dense absorption liquid may be fed to the high-temperature regenerator 4 by means of a dense liquid pump 13.
Patent JP-2002229884-A (JP)
Title: Method for distributing location information from network to communication terminal, its service system, program for embodying this method, movable communication terminal and location information providing server
Inventor: FUKUDA MASAHITO
IPC: G06Q30/02
Filed: 2001-02-01
Abstract: PROBLEM TO BE SOLVED: To eliminate service usage charges by sending advertisement information along with location information along. SOLUTION: A present position request specifying positional information acquired by a communication terminal 1 is carried out by accessing a location information providing server 2 connected to a network from the communication terminal 1. In the location information providing server 2 receiving the present position request, the location information corresponding to the positional information sent from the communication terminal 1 is retrieved, the advertisement information of a sponsor relevant to the location information is added, and it is sent to the communication terminal 1.
Patent JP-2001345688-A (JP)
Title: Semiconductor switching element driving circuit
Inventor: FUKUDA YUTAKA
IPC: H02M1/00
Filed: 2001-02-02
Abstract: PROBLEM TO BE SOLVED: To enable to control an overcurrent which increases instantaneously and to perform a high-speed cutoff of a semiconductor switching element. SOLUTION: The semiconductor switching element driving circuit is provided with an overcurrent limiting circuit 10 which reduces instantaneously the voltage of a gate terminal 4a when a collector current Ic becomes larger than i1, and an overcurrent protection circuit 20 which first reduces the collector current Ic at a first incline when it becomes larger than i2 and then reduces the collector current Ic at a second steep incline when it becomes smaller than i3. In this way, in the case of an overcurrent for a relatively short period, the gate voltage can be reduced instantaneously by the overcurrent limiting circuit 10. On the other hand, in the case of an overcurrent for a relatively long period, the IGBT 4 can be cut off at a high speed by the overvoltage protection circuit 20 while soaring voltage due to variation in current is prevented.  Further, since the IGBT 4 is cut off when the collector current Ic becomes smaller than i3 regardless of the time since the generation of an overcurrent, the overcurrent can be prevented from inevitably flowing for a certain time.
Patent JP-2002231114-A (JP)
Title: Relay
Inventor: KAMIKO ATSUKO
IPC: H01H45/06
Filed: 2001-02-06
Abstract: PROBLEM TO BE SOLVED: To easily interconnect a plurality of relays with simple work. SOLUTION: A cylindrical part 16 and an engaging recessed part 18 are formed in a case 3 of each relay 2, and a cylindrical part 16 of one relay 2 is engaged with an engaging recessed part 18 of the other relay 2 when the plurality of relays 2 are interconnected. Thus, the plurality of relays 2 are interconnected. In this state, a communication passage 19, namely a hollow inside of the cylindrical part 16, and the engaging recessed part 18 are opened inside and outside the case 3, so that heat inside the case 3 is discharged to the outside through the communication passage 19 and the engaging recessed part 18.
Patent JP-2002232657-A (JP)
Title: Image reader and image forming device
Inventor: ASAKAWA TETSUO
IPC: H04N1/19
Filed: 2001-02-07
Abstract: PROBLEM TO BE SOLVED: To check a lamp on an optimum condition corresponding to a reading operation by separating lamp checking from a shading operation (reference white plate reading). SOLUTION: In a lamp checking operation, the lamp 261 is turned on at a position A where a scanner carriage 263 is stopped, whether the light quantity of the lamp is appropriate is decided by a white peak value detected by reading a small white plate 265, a started reading operation is interrupted in the case of lamp abnormality, and the purport that the lamp is abnormal is notified. Since the lamp checking is separated from a reference white plate reading operation, timing can be determined arbitrarily, and the optimum condition is given to a continuous reading operation of an original without correction processing by a reference white plate at an automatic document feeder(ADF) (reading position A). Reading is conducted in the middle of moving to a position B in a reference white plate reading mode, and a return is made to the position A in the case of ADF.  In the case of a reading system movement method, an original placed on a platen 134 being farther than the position B is read.
Patent JP-2002237209-A (JP)
Title: Sleeve for discharge tube
Inventor: TAKAHASHI TETSUO
IPC: F21V17/00
Filed: 2001-02-09
Abstract: PROBLEM TO BE SOLVED: To provide a sleeve for a discharge tube enhancing illuminance in a direction intended by the discharge tube. SOLUTION: The sleeve for the discharge tube has a hollow long cylindrical body 10 comprising optically transparent synthetic resin and a light reflecting layer 22 arranged on an inner face of the long cylindrical body 10. The long cylindrical body 10 is of a size and shape at least partially enclosing a fluorescent tube 12, and a portion of the long cylindrical body 10 not inscribed by the light reflecting layer 22 forms an optical opening. The sleeve 10 is supported on the discharge tube 12 by caps 28 on both ends.
Patent JP-2002237602-A (JP)
Title: Semiconductor device and its manufacturing method
Inventor: MATSUO KOJI
IPC: H01L21/336
Filed: 2001-02-09
Abstract: PROBLEM TO BE SOLVED: To easily and arbitrarily control the overlap between the gate electrode and the source and the drain in a MOSFET and, in addition, to make the drivability of the MOSFET improved. SOLUTION: A dummy gate electrode 17 is selectively formed on a semiconductor layer 13 and a source region 20 and a drain region 21, both of which are composed of silicides are formed by using the electrode 17 as a mask. After gate sidewall films 22 have been formed on the side faces of the dummy gate electrode 17 and an interlayer insulating film 23 is made to be deposited on the semiconductor layer 13 including the electrode 17, a groove 24 is formed by retreating the insulation film 23 and removing the electrode 17 and sidewall films 22, a gate insulating film is formed on the surfaces of the semiconductor layer 13, the source region 20, and the drain region 21 in the groove 24, and, the gate electrode is embedded in the groove 24.
Patent JP-2001267664-A (JP)
Title: Device including waveguide structure
Inventor: SHMULOVICH JOSEPH
IPC: H01S3/06
Filed: 2001-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a waveguide structure equipped with a pump laser maintaining fixed pump power density. SOLUTION: This waveguide structure includes an Er dope waveguide amplifier and a non-linear waveguide wavelength converter device or an optical fiber. The waveguide structure is provided with a waveguide area formed like a taper shape across a pump propagating distance. This pump propagating distance is set as a prescribed distance between a first pump sit and a second pump site, and pump lights are allowed to propagate for amplifying or converting a signal across the distance between those pump sites. The taper can reduce the depletion of the pump power, and maintain pump power density to be almost fixed across the pump propagating length. Thus, it is possible to reduce the depletion of the pump.
Patent JP-2002245773-A (JP)
Title: Data delay circuit
Inventor: OKAZAKI RYUICHI
IPC: G11C19/00
Filed: 2001-02-15
Abstract: PROBLEM TO BE SOLVED: To provide a data delay circuit which may be only operated by a data clock. SOLUTION: Input digital data is delayed by a time previously decided and outputted by a counter circuit 2 receiving data clock and outputting a write-in clock synchronized with a data clock and a read-out clock delayed from a write-in clock by a time previously decided and synchronized with a data clock, and a FIFO memory 1 receiving a write-in clock, writing successively input digital data, receiving a read-out clock, reading out successively written digital data according to an order by which the digital data is written, and outputting it.
Patent JP-2002246941-A (JP)
Title: Transceiver for radio transmission
Inventor: SATO KATSUYUKI
IPC: H04B7/08
Filed: 2001-02-16
Abstract: PROBLEM TO BE SOLVED: To provide a low-cost and light transceiver for image radio transmission. SOLUTION: A transmission/reception intermediate frequency circuit 309 has a control signal phantom supply voltage superposing section 308 for superposing a control signal that is generated by a control signal generating section 301, a phantom supply voltage that is generated by a phantom supply voltage generation section 302, and a transmission intermediate frequency signal and a reception intermediate frequency signal, that are amplified by a transmission intermediate frequency amplifier 304. The transmission/reception high-frequency front-end circuit 318 has a control signal phantom supply voltage differentiating section for differentiating a control signal, and a phantom supply voltage from a signal that is supposed by the control signal phantom supply voltage superposing section 308. Also, the control signal phantom supply voltage superposing section 308 is connected to or separated from the transmission/reception high-frequency front-end circuit 318 by a coaxial cable 113.
Patent JP-2002240144-A (JP)
Title: Fluoroplastic film of low double refraction
Inventor: HIGUCHI YOSHIAKI
IPC: B29C55/12
Filed: 2001-02-19
Abstract: PROBLEM TO BE SOLVED: To provide a fluoroplastic film markedly lowered in double refraction. SOLUTION: A rightward declining segment L is obtained by plotting the thickness (t) of a film and double refraction Δn with respect to the thickness and, when a raw film is biaxially stretched by an assist method to be divided into a region A above the segment L and a region B below the segment L, the fluoroplastic film wherein the double refraction Δn of the stretched film is present within the region B is obtained.
Patent JP-2002243570-A (JP)
Title: Pressure sensor built-in plug and its manufacturing method
Inventor: MATSUI MASAYOSHI
IPC: F02P13/00
Filed: 2001-02-20
Abstract: PROBLEM TO BE SOLVED: To provide a pressure sensor built-in plug and its manufacturing method capable of holding the pressure sensor under the condition where the pushing pressure is equally applied thereto so as not to have a backlash relative to the mounting seat part of a subject hardware without requiring a high-degree skill, an expansive jig/tool or the like. SOLUTION: A non-welded first fixing part T interfitted and fixed on the circumferential surface of a first swelling part 11d is formed on a cylindrical part 21a of a sensor case 21, and hereby the cylindrical part 21a of the sensor case 21 is surely held and fixed on the circumferential surface of the first swelling part 11d. Therefore, the pressure sensor can be held under the condition where the pushing pressure is equally applied thereto so as not to have a backlash relative to the mounting part (the first swelling part 11d and a second swelling part 11e) of the subject hardware 11 without requiring the high-degree skill, the expensive jig/tool or the like, to thereby suppress increase of a production cost.
Patent JP-2002244050-A (JP)
Title: Endoscopic illumination optical system
Inventor: SHIMADA MASAFUMI
IPC: G02B23/26
Filed: 2001-02-21
Abstract: PROBLEM TO BE SOLVED: To provide an endoscopic illumination optical system which permits the reduction of the maximum thickness of a light distribution lens and is more advantageous for control of an illumination distribution than a Fresnel lens. SOLUTION: The illumination optical system has the light distribution lens 10. The first face 11 of the light distribution lens 10 is rotationally symmetric to an optical axis Ax and is segmented to two ring zones 11a and 11b concentric around the optical axis Ax within a plane perpendicular to the optical axis Ax. The ring zone 11a on the inner side inclusive of the optical axis is formed as a concave face and the ring zone 11b on the outer side as a convex face. The convex face and the concave fare are continuous at the boundary of these zones.  The curved surface shape of the ring zone 11b on the outer side of the light distribution lens 10 is the same convex face as the corresponding segment of a reference curved surface 1a and the curved surface shape of the ring zone 11a on the inner side is the concave face formed by converting the corresponding segment of the reference curved surface 1a to the shape symmetrical with respect to the segment (face) perpendicular to the optical axis.
Patent JP-2002251495-A (JP)
Title: Method, server and program for providing guide map information
Inventor: KAMIMURA YOSHITAKA
IPC: G06Q10/00
Filed: 2001-02-21
Abstract: PROBLEM TO BE SOLVED: To resolve complication and reduce communication costs in user search of shop and guide map information, and require shop information providers not to purchase and manage map and coordinates information. SOLUTION: A shop information providing server 2 embeds searched shop information with URL that is linked to a guide map information providing server 3 into a shop information layout, and then transmits it to an information requiring terminal 1. When a user designates the URL at the information requiring terminal 1, required conditions of guide map information including shop information are transmitted to the guide map information providing server 3. The guide map information providing server 3 generates guide map information using the shop information. Subsequently, the guide map information providing server 3 embeds the generated information into a guide map information layout, and then transmits it to the information requiring terminal 1.
Patent JP-2002246811-A (JP)
Title: Nonreciprocal circuit element and communication equipment
Inventor: ICHIGUCHI SHINICHIRO
IPC: H01P1/383
Filed: 2001-02-22
Abstract: PROBLEM TO BE SOLVED: To provide nonreciprocal circuit element and communication equipment whose electric characteristics are stable and whose manufacturing costs are low. SOLUTION: A center electrode assembly 13 is provided with a plurality of center electrodes 21-23 arranged at a ferrite 20. Adhesive 62 is formed on one surface of the center electrodes 21-23, and insulating coating 63 is formed on the other surface. The center electrodes 21-23 are wound around the ferrite 20, and adhered through the adhesive 62 of the center electrodes 21-23 to the ferrite 20. The center electrodes 21-23 and a ground electrode 25 are formed by carrying out the punching working or etching working of a metallic thin board. The surface of a mother board made of materials including one of iron, copper, and aluminum as components is coated with metal (for example, gold, silver, or copper) whose electric resistance is not more than 5.5 μΩ cm so as to be used as the materials of the metallic thin board.