baber/WOPTO huggingface dataset:
Patent JP-H07162402-A (JP)
Title: Clock extract circuit
Inventor: AKITA MASASHI
IPC: H04L7/00
Filed: 1993-12-07
Abstract: PURPOSE:To obtain the clock extract circuit operated stably not susceptible to a noise or the like with respect to a received burst signal. CONSTITUTION:A change point detection circuit 1 detects a change point of a received burst signal to provide an output of a timing signal, a phase comparator circuit 2 compares a phase of the timing signal with a phase of an output clock to provide a resulting output as a lead/lag signal. A synchronization discrimination circuit 3 discriminates the relation of the phase of the received burst signal and the phase of the output clock to provide an output of a synchronizing signal/an asynchronizing signal and a one-period detection circuit 4 provides an output of one-period detection signal when a phase difference between the input clock and the output clock reaches one-period. A control circuit 5 receives a lead/lag signal, the one-period detection signal and a code signal being the result of count by an up-down counter 6 to provide an output of count up-down signal. The up-down counter 6 conducts count up-down based on the count up-down signal on the receipt of the asynchronizing signal and stops counting upon the receipt of the synchronizing signal. A variable delay circuit 7 changes a delay time of the input clock based on the code signal to provide an output of the output clock.
Patent JP-2000134802-A (JP)
Title: Power system interlock controller
Inventor: AKAMATSU MASAHIKO
IPC: H02J3/18
Filed: 1998-10-28
Abstract: PROBLEM TO BE SOLVED: To improve the cost benefit of the operation of a controller which is operated instantaneously at the emergency of a power system to control the power system. SOLUTION: In a normal state, a switching means 11 is opened, and a converter control means 40 is set in a standby state for control. If emergency occurs in an AC power system, a system information collecting means 84 detects the emergency and closes the switching means 11, with a command from an interlock control means 86 and the control of a power converter 50 is started.
Patent JP-H04178060-A (JP)
Title: Isdn terminal equipment
Inventor: KATO OSAMU
IPC: H04M11/06
Filed: 1990-11-13
Abstract: PURPOSE:To utilize a free space of one B-channel effectively by devising the terminal equipment such that the saving mode in which a digital voice signal and a data terminal signal use only one B-channel and the normal mode in which they use separate B-channels respectively are selected. CONSTITUTION:When talking is desired while data transfer is implemented at a signal speed of 4.8Kbps or below, the saving mode is selected by an input from a man-machine interface 6. In the saving mode, a pulse composite/isolation circuit 3 uses a speed matching circuit 1 to replace a least significant bit of a PCM code of a voice signal from a handset 10 sent from a CODEC 2 with a data signal from a data terminal 20 and sends the data signal to a selector 4. Moreover, the circuit 3 sets the least significant bit of the PCM code to '1' and sends the result to the CODEC 2 with respect to the input signal from the ISDN line and sends a data signal extracted by referencing the least significant bit to the circuit 1. Through the constitution above, data transfer and voice communication are implemented simultaneously at a cost by one channel and the line utility change is saved.
Patent JP-H04181108-A (JP)
Title: Method for recognizing three-dimensional shape
Inventor: KADOTA YASUHIRO
IPC: G01B11/24
Filed: 1990-11-15
Abstract: PURPOSE:To enable an imaginary image to be eliminated positively and a normal shape to be recognized by changing an angle which is formed by an optical axis and a slit light by moving a camera when two or more images are taken. CONSTITUTION:A slit light 2 is projected from a slit light generation device 1 to an object to be measured 7, reflection light which is subjected to irregular reflection on a surface of the object to be measured 7 is received by a camera 3, and the image is sent to a real image/imaginary image judging equipment 5 through an image take-in equipment 4 for checking to see if there are two or more images. If there are two or more images, an imaginary image (regular reflection light) is included in the image so that it is not adopted as a data for operation 6 and the camera 3 is moved in a direction for preventing the imaginary image from being observed by a camera traveling device 9. Namely, when an angle formed by an observation direction of a camera 3 and an irradiation direction of a slit light 2 is converted from theta1 to theta2, the camera 3 deviates from reflection direction of the regular reflection light so that only an irregular reflection light (real image) enters the camera 3, thus enabling only a real image without any imaginary image to be observed and a shape to be recognized accurately.
Patent JP-H07133416-A (JP)
Title: Antistatic polycarbonate resin composition
Inventor: SATO ICHIRO
IPC: C08K3/00
Filed: 1993-11-11
Abstract: PURPOSE:To obtain the composition useful as exterior parts of office devices such as cartridge of optical disc, etc., having excellent antistatic properties without damaging impact resistance and transparency, by adding a specific phosphonium salt to a polycarbonate resin. CONSTITUTION:(A) 100 pts.wt. of a polycarbonate resin is mixed with (B) 0.1-10 pts.wt. of a phosphonium salt of the formula (R1 to R4 are independently 4-16C alkyl or phenyl; X is Cl, Br or I) as an antistatic agent. Both the components are mixed by a tumbler and kneaded in a molten state.
Patent JP-2000128671-A (JP)
Title: Glazed ceramic and its production
Inventor: OKAMOTO KENJI
IPC: C04B41/86
Filed: 1998-10-28
Abstract: PROBLEM TO BE SOLVED: To obtain a large-sized and thin-walled glazed ceramic with excellent cutting processability. SOLUTION: This glazed ceramic is such one as to be provided with a crackle-bearing glaze layer on the surface thereof, consisting of a talc-based sintered compact >=20 wt.% in talc remains; wherein the crackle density on the glaze surface is such as to be 20-500 in the number of points afforded by crossing a line segment 10 cm long with the crackles, and the crackles are filled by coating the glaze layer with a silicone resin or the like.
Patent JP-H09148514-A (JP)
Title: Ic package and mounting structure of ic package
Inventor: NAKAMURA TORU
IPC: H05K3/34
Filed: 1995-11-27
Abstract: PROBLEM TO BE SOLVED: To prevent generation of a solder bridge between lead terminals by raising both side parts of each lead terminal to form a recess thereof, the lead terminals being led out in parallel with each other from an IC sealing part. SOLUTION: A recess 5 is formed by standing both side parts of each lead terminal 2, the lead terminals being led out in parallel with each other from an IC sealing part 1. The recess 5 is formed by bending each lead terminal 2 at the center thereof into a V-form to raise both side parts thereof. According to this IC package, when the lead terminal 2 is placed on and along a pad 3 and is soldered thereto, even if the melted solder 4 is going to flow, it has a negative pressure because it has a concave surface with a radius of curvature R2 . Namely, the internal pressure of the melted solder 4 is negative on the lead terminal 2 so that flowing out thereof to a bridge part 5 is remedied, i.e., generation of the solder bridge can be prevented.
Patent JP-H11138362-A (JP)
Title: C type ring member-mounting and demounting jig
Inventor: SHIMAZAKI YASUO
IPC: B25B27/20
Filed: 1997-11-10
Abstract: PROBLEM TO BE SOLVED: To provide a C type ring member-mounting and demounting jig used for safely, positively mounting and removing C type ring member on and from a groove part formed on a pipe at its outer boundary surface. SOLUTION: A pair of arms 7 having a claw part 6 capable of insertion into the notch part 5 of a C type ring member R at each tip part is provided to engage the C type ring member R with a groove part formed on a pipe at its outer boundary surface along generally in the peripheral direction of the pipe, or to remove the C type ring member R engaged with the groove part. A jig body 8 for installing the pair of arms 7 is provided to approach or space both the claw parts 6, respectively. The jig body 8 is provided with an arm operating mechanism S to approach or space both the claw parts 6, respectively.
Patent JP-H04178088-A (JP)
Title: Coder
Inventor: OTAKA HIDEKI
IPC: H04N19/91
Filed: 1990-11-13
Abstract: PURPOSE:To ensure the accuracy of orthogonal transformation and to realize a coding section with less circuit scale by increasing an output word length of orthogonal transformation. CONSTITUTION:An orthogonal transformation device 12 implements orthogonal transformation in the unit of blocks and outputs the result in m-bits. The transformed orthogonal components are rearranged and a component (maxAC) except its DC component is detected. Amax detector 13 detects a maximum value of an absolute value of the amplitude in the orthogonal component and the result is classified into four classes 0,1.2.3 depending on the magnitude. The maximum 3-class is quantized so as to be kept in (m-1) bits of dynamic range. The lower class is quantized to be within an m-bit word length. Moreover, the rearrangement method is implemented in the order of the arrow in figure as one method. Since the dynamic range of the input data to a variable length coder 19 is in a range of -MAX(m-1)-+MAX(m-1), the capacity of the table of the coder is enough to be that corresponding to the dynamic range of the (m-1) bit input.
Patent JP-H08156009-A (JP)
Title: Resin molding device
Inventor: NAKAMURA TSUTOMU
IPC: B29C45/14
Filed: 1994-12-12
Abstract: PURPOSE: To surely prevent a resin from leaking from a cavity by providing an outer wall surface which is almost parallel to the lateral wall of a lead and a projecting part with an inner wall surface which is not parallel to the outer wall surface, on a part adjacent to the lead in a crushable block. CONSTITUTION: A projecting part 21 which holds a region near the base of a tongue piece 7a jutting out of an outermost lead or the intermediate part of the tongue piece 7a, is provided on the inner bottom surface of a protrusion wall so that the tongue piece 7a of a lead frame is stored into a crushable block. The outer wall 21a of the projecting part 21 is parallel to the lateral wall of the lead, and the inner wall 21b is nonparallel to the outer wall 21a. In addition, when a molding operation is performed, the base and the intermediate part of the tongue piece part 7a are held between a top force 15 of a die and the projecting part 21 of the crushable block 19. Further, the pressure-crushed holding part and the non-held part are deformed.  As this deformation is such that the inner wall 21b of the projecting part 21 is non- parallel with the lateral wall of the lead, the pressure crush amount is significant at a large width part. Thus the tongue piece 7a is caused to inflate in a width direction to eliminate a clearance between the tongue piece 7a and the inner wall of the crushable wall 19.
Patent JP-H07142451-A (JP)
Title: Etching method for compound semiconductor
Inventor: OKUHORA AKIHIKO
IPC: H01L21/302
Filed: 1993-11-12
Abstract: PURPOSE:To allow etching with little damage and good machining characteristics by employing an additive gas containing chalcogens atoms and halogen atoms. CONSTITUTION:A compound semiconductor is subjected to etching through a process for exciting an etching gas and an additive gas and causing reaction by applying high frequency power. In such etching method for a compound semiconductor, an additive gas containing chalcogens atoms 34 and halogen atoms 33 is employed. A compound gas of chalcogens atoms such as S or Se and halogen atoms, e.g. Cl2S2, Br2Se2, Cl6S, Br6Se, is added to SiCl4, Cl2, BCl2, gas, etc., for example, to produce an etching gas. Since the chalcogens atoms 34 are adsorbed to the etching side wall face to form a passivated layer 35, the etching face can be protected against damage at the time of machining with high machining voltage and etching excellent in verticality and anisotropy can be effected with low machining voltage.
Patent JP-H07158022-A (JP)
Title: Structure and construction method of descent snow course in indoor artificial skiing ground
Inventor: NIKAIDO MINORU
IPC: A63C19/10
Filed: 1993-12-08
Abstract: PURPOSE:To improve the conditions of skiing ground surface by sequentially laying bottom, intermediate and upper layers having respective specified hardness values and then forming a dry fresh snow-like surface layer thereon. CONSTITUTION:A snow layer composed of a bottom layer 5, an intermediate layer 6, an upper layer 7, and a surface layer 8 are laid sequentially on a slanting based 4 composed of a concrete layer 1, a heat-insulating layer 2, and a snow mat 3. At the time, the bottom layer 5 is made to be a hard compressed snow layer having 20-70kg/cm<2> in hardness (measured value of Kinoshita type hardness meter) at below zero in the indoor temperature so as to prevent dug recesses due to skiing and the intermediate layer 6 is made as a compressed layer having 10-30kg/cm<2> in hardness with less dug recesses and not so hard as Eisbahn (frozen ski slope). And the upper layer 7 is made to be dense snow layer having 5-15 in hardness to make it possible to enjoy a pleasant skiing and prevent the snow from fluidizing due to skiing. In this way, dug recesses in snow can be prevented and safety can be increased and hence, skiers can enjoy pleasant skiing.
Patent JP-S63161888-A (JP)
Title: Feed controller
Inventor: KUWABARA KOJI
IPC: H02P29/00
Filed: 1986-12-25
Abstract: PURPOSE:To prevent the generation of large fluctuation in a current command even when speed control gains are brought to any value by computing a motor speed estimate, a noise component of which is reduced, from a motor speed signal including noised and feeding back the estimate. CONSTITUTION:The positional deviation of a positional command and a motor- position signal 32 is obtained by a subtracter 2, and the positional deviation is multiplied by a constant Kp to acquire a speed command 23. The deviation of the speed command 23 and a motor speed estimate 113 is obtained by a subtracter 4, and an output from the subtracter 4 is multiplied by a constant Kv to acquire a motor current command 25. On the other hand, a speed estimating apparatus 100 is constituted of coefficient multipliers 102, 103, 109, integrators 104, 112 and subtracters 101, 105, 110, and actual motor speed signal 31 and motor current command 25 are input to the speed estimating apparatus, thus computing the motor speed estimate 113, a noise component of which is reduced.
Patent JP-H02124353-A (JP)
Title: Master cylinder
Inventor: FUIRITSUPU KANINGAMU
IPC: B60T11/22
Filed: 1988-12-05
Abstract: PURPOSE: To simplify brake fluid tank installing work by providing a connecting means engaging with the port means of a pressure cylinder with a flexible locking means elastically engaging with the supporting part of the pressure cylinder and supporting a tank in an acting position on the cylinder. CONSTITUTION: A master cylinder brake fluid tank provided with a container 1 including a filling opening 2 closable by a screw cap 3 includes a pair of port connectors 6, 7 on the under surface of the container 1 which is installed on a pressure cylinder 8 through the connectors 6, 7. In this case, the respective connectors 6, 7 are provided with a spigot 9, into which a socket 9A formed on the cylinder 8 is to be inserted and a peripheral flange 12 protruding toward the periphery is formed on the outer end of the spigot 9. A pair of arms 14, 15 are provided to protrude from the bottom of the container 1 and face each other radially with respect to the spigot 9 and shoulders 14A, 15A formed on the periphery thereof are made lockable on the flange 8A protruding on the inlet of the socket 9A.
Patent JP-H10150344-A (JP)
Title: Recursive digital filter
Inventor: KUBO KOJI
IPC: H03H17/04
Filed: 1996-11-19
Abstract: PROBLEM TO BE SOLVED: To reduce the power consumption of the recursive digital filter by feeding back an output of an adder for input data that is delayed and multiplied by a specific multiple so as to reduce a rate of number of gates occupied in a multiplier. SOLUTION: Input data of a digital signal series are added to an output of an adder 107 at an adder 102 and an output of the adder 102 is multiplied by a multiple of a0 at a multiplier 117. One of outputs of the multiplier 117 is delayed for one sampling time at a delay device 103, one of outputs of the delay device 103 is multiplied by a multiple of b1 ' at a multiplier 111. The other output of the delay device 103 is further delayed for one sampling time at a delay device 105, and one of outputs of the delay device 105 is multiplied by a multiple of b2 ' at a multiplier 113. Furthermore, the other output of the multiplier 105 is multiplied by a multiple of -1 at a sign inverter 116 and the output of the sign inverter 116 and the other output of the multiplier 117 are added by an adder 110, whose output is filter output data.  The number of the multipliers is reduced and number of gates of the sign inverter is less than number of gates of the multipliers.
Patent JP-H09142368-A (JP)
Title: Bicycle with auxiliary power device
Inventor: TAKAYAMA ATSUSHI
IPC: B62M23/02
Filed: 1995-11-27
Abstract: PROBLEM TO BE SOLVED: To facilitate the fitting work to a car body and prevent the radiation of radiant electromagnetic waves by storing a control device controlling a motor in a storage chamber formed in a case. SOLUTION: Fitting bosses 234a-234c for fitting a printed board 301 protruded from a bottom wall 231 on a fitting section 235 side are formed on a storage chamber 234 storing a control device 300. A fitting base 234e protruded from the bottom wall 231 is formed on the storage chamber 234 between the fitting bosses 234a and 234b. The fitting section 235 for fitting a motor is provided with an insertion port surrounded with a circular wall and opened upward, and a fitting boss provided with a screw insertion hole is formed on the opposite bottom face. The occupation area of the motor is reduced, the motor can be miniaturized, and the fitting work to a car body is facilitated. The lead wire connecting the motor and the control device 300 is wired in a case, and the radiation of radiant electromagnetic waves can be surely prevented.
Patent JP-2001123636-A (JP)
Title: Corner material for internal angle and method of processing internal angle part of indoor wall using the corner material
Inventor: MINOWA KIHACHIRO
IPC: E04F13/08
Filed: 1999-10-29
Abstract: PROBLEM TO BE SOLVED: To provide a corner material for internal angle capable of eliminating such a problem on a conventional material that a working cost is high because a working efficiency is poor and a trouble due to secular change tends to occur. SOLUTION: Corner materials 1 and 3 for internal angle formed in a long columnar body of L-shaped cross section, two side faces (11, 12) in longitudinal direction are made flat, and a width dimension W is formed in the same dimension as the wall thickness dimension T of a wall substrate material. The corner material may be formed by cutting a part of a square pole body 2, or may be formed by integrating a small square pole body 1 therewith through the square side on one shorter side of the square pole body 30.  The method of processing the internal angle part using the corner material comprises the steps of fixedly mounting the projected side crossing faces 14a and 14b of the corner material on an internal angle part 13, fixing the faces to a furring strips 6 and a stud with a wall substrate material 4 in contact with the side face crossing at right angle to an end edge face 40, and installing a wall decorating material 8 so as to cover recessed side orthogonal faces 13a and 13b and the surface of the wall substrate material.
Patent JP-H03166971-A (JP)
Title: Document/journal transport device and transport control
Inventor: RIYOUKAN EIJI
IPC: B41J15/04
Filed: 1989-11-27
Abstract: PURPOSE:To transport a cut form to a printing part correctly and thereby to print data in parallel with the rules of a document and a journal by providing the first transport device consisting of paired feed roller and pressure roller and the second transport device consisting of paired feed rollers and pressure rollers. CONSTITUTION:If a continuous form book 1 is introduced by an operator until it comes in contact with nip parts 16 of rollers 10, 15 on the second transport device, sensors 8, 11 detect the passage of the book 1 and the drive of a solenoid 7 stops due to a detection signal from the sensors 8, 11. Then, a pressure roller 5 is allowed to come in contact with a feed roller 2 under pressure. If the tip of the book 1 is put in contact obliquely with a roller shaft of the second transport device by an opera tor, a motor 4 for the first transport device is driven to transport the book 1 further few steps by the transport action of transport rollers 2, 5. Consequently, the tip of the book becomes slightly swollen between upper and lower guide plates 10. This action results in the generation of a rotating action of an obliquely running book 1 with paired rollers 2, 5 on a roller shaft 6 acting as a fulcrum. Subsequently, the tip of a form is forced to maintain itself in equilibrium with the nip part 16 of the second transport device.
Patent JP-H03167263-A (JP)
Title: Freshness-keeping packaging material
Inventor: TANAKA HIDEHIKO
IPC: B65D85/50
Filed: 1989-11-27
Abstract: PURPOSE:To provide an excellent freshness-keeping ability and an excellent antifungal and deodorizing effect by using, as a packing material, a synthetic resin molding contg. a typical metallic element compd. and a natural radioactive mineral. CONSTITUTION:The title material comprises a synthetic resin molding contg. a typical metallic element compd. and a natural radioactive mineral. The typical metallic element compd. pref. contains at least one typical metallic element selected from the group consisting of alkali and alkaline earth metal elements and metallic elements of the boron group and the carbon group; the compd. pref. is at least one compd. selected from the group consisting of a carbonate, sulfate, phosphate, oxide, hydroxide, and chloride. The natural radioactive mineral pref. contains niobium, oxide, yttrium oxide, radium oxide, and thorium oxide; fergusonite is particularly pref. The content of the compd. and the mineral in the molding is pref. 1-20wt.%.
Patent JP-H11142901-A (JP)
Title: Optical transmission device
Inventor: JIYO CHIYOUSEI
IPC: H04B10/291
Filed: 1997-11-11
Abstract: PROBLEM TO BE SOLVED: To simplify an optical transmission device for removing the distortion of signal light arising in consequence of the refractive index dispersion of an optical fiber. SOLUTION: The signal light Os via the optical fiber F1 is in a distorted state with respect to a wavelength. An optical parametric amplifier element 10 executes amplification with injected pumping light Op and generates amplified light Osa amplifying the signal light Os and idler light Oi . The idler light Oi is the inversion of the waveform with respect to the wavelength of the signal light Os . The idler light Oi is selected by a filter 11 and is outputted via the optical fiber F2. As a result, the distortion that the signal light Os has in the optical fiber F1 is corrected.