baber/WOPTO huggingface dataset:
Patent MY-121995-A (MY)
Title: Apparatus for mirror-polishing thin plate.
Inventor: HASEGAWA FUMIHIKO
IPC: B24B1/00
Filed: 1997-09-03
Abstract: AN APPARATUS FOR MIRROR-POLISHING A THIN PLATE (W), WHEREIN UNIFORMITY OF TIGHTNESS IN A STRETCHED CONDITION ACROSS AN ELASTIC FILM (10) CAN BE ACHIEVED AND A POLISHING PRESSURE DISTRIBUTION ON THE THIN PLATE (W) IS UNIFORMALIZED, SO THAT CONSTANT POLISHING STOCK REMOVAL IS REALIZED AND HIGH FLATNESS POLISHING IS MADE POSSIBLE. IN THE APPARATUS, THE THIN PLATE W IS HELD ON A THIN PLATE SUPPORT MOUNTED ON A ROTATABLE PRESS MEMBER (1) AND THE THIN PLATE W IS PRESSED TO A POLISHING MEANS (21) BY THE PRESS MEMBER (1), AND THE APPARATUS HAS FEATURES THAT A HOLDING SURFACE FOR THE THIN PLATE W IS FORMED BY A FLEXIBLE ELASTIC FILM (10); THE ELASTIC FILM (10) IS FASTENED TO THE PRESS MEMBER (1) OR A PART MOUNTED THERETO IN A CONDITION THAT THE EALSTIC FILM (10)IS SANDWICHED BETWEEN A SPACER (6) AND A HOLDING PIECE (8); AND A PRESSURE, WHICH PRESSES THE THIN PLATE W HELD ON THE ELASTIC FILM (10) TO THE POLISHING MEANS (21), IS ADJUSTED BY APPLYING A BACK PRESSURE TO THE THIN PLATE W WITH A FLUID FEED MEANS, WHILE ADJUSTING TIGHTNESS OF THE ELASTIC FILM (10) BY THE SPACE (6).FIG. 1
Patent MY-125571-A (MY)
Title: Method for controlling composition of flue gas discharged from refuse incinerator
Inventor: FUJII SATOSHI
IPC: F23G5/50
Filed: 1997-09-13
Abstract: FLUE GAS TEMPERATURE AT OUTLET (6) OF A REFUSE INCINERATOR (1) IS DETERMINED BY A THERMOMETER (12) LOCATED AT OUTLET (6) THEREOF, AND NOx CONCENTRATION, CO CONCENTRATION, AND O₂ CONCENTRATION IN FLUE GAS ARE DETERMINED BY FLUE GAS ANALYZERS (14, 15, AND 16), LOCATED IN A FLUE GAS DUCT. EACH OF THE OBSERVED VALUES OF FLUE GAS TEMPERATURE AND NOx CONCENTRATION IS COMPARED WITH EACH CORRESPONDING REFERENCE VALUE. BASED ON THE RESULTS OF THE COMPARISON, A RATE OF WATER SPARY INJECTED AGAINST REFUSE BURNING ON GRATES IS ADJUSTED. ALSO, EACH OF THE OBSERVED VALUES OF FLUE GAS TEMPERATURE, NOx CONCENTRATION, CO CONCENTRATION, AND O₂ CONCENTRATION IS COMPARED WITH EACH CORRESPONDING REFERENCE VALUE. BASED ON THE RESULTS OF THE COMPARISON, A RATE OF SECONDARY COMBUSTION AIR SUPPLY INJECTED TO A COMBUSTION CHAMBER (1A) IS ADJUSTED.(FIG. 1)
Patent MY-120956-A (MY)
Title: Conductive anti-reflection film and cathode ray tube
Inventor: CHIGUSA HISASHI
IPC: G02B1/111
Filed: 1997-10-08
Abstract: A SECOND FILM THAT CONTAINS A SUBSTANCE THAT SECURES THE CONDUCTIVITY OF CONDUCTIVE PARTICLES IS FORMED ON A FIRST FILM THAT CONTAINS THE CONDUCTIVE PARTICLES. THE FIRST FILM AND THE SECOND FILM ARE SINTERED AT THE SAME TIME. THUS, A CONDUCTIVE ANTI-REFLECTION FILM HAVING A SUFFICIENTLY LOW SURFACE RESISTANCE WITH A SUFFICIENT TRANSMISSIVITY FOR A HIGH TRANSPARENCY CAN BE OBTAINED WITH HIGH COST PERFORMANCE. WHEN THE CONDUCTIVE ANTI-REFLECTION FILM IS USED FOR A CATHODE RAY TUBE, IT CAN ALMOST PREVENT THE AEF (ALTERNATING ELECTRIC FIELD), DISPLAY A PICTURE IN HIGH QUALITY, AND BE EXCELLENT INCOST PERFORMANCE.FIG. 1
Patent MY-132644-A (MY)
Title: Module support structure
Inventor: HANS-ULRICH G XDCNTHER
IPC: H01R4/64
Filed: 1997-10-24
Abstract: A SHIELDED MODULE SUPPORT STRUCTURE FOR PRINTED CIRCUIT BOARDS (2) CAN BE INSERTED ON GUIDE RAIL (7) AND HAVING ELECTRICAL OR ELECTRONIC COMPONENTS HAS TWO PARALLEL SIDE WALLS (3) AND AT LEAST FOUR MODULE RAILS (4) FOR BEARING THE GUIDE RAILS (7).THE MODULE RAILS ARE ANODIZED ALUMINUM OR AN ANODIZED ALUMINUM ALLOY AND HAVE, AT THE FRONT SIDE, AT LEAST ONE SEATING SURFACE (12) FOR ONE OR MORE FRONT PLATES (9), TO IMPROVE ELECTRICAL CONDUCTIVITY, SECTIONS OF THE MODULE RAILS (4) ARE FREED FROM THE ANODIZED LAYER. THIS CAN BE DONE BY REMOVAL OF PROTRUSIONS (18) BY PROCESSES SUCH AS MECHANICAL MILLING.FOR IMPROVED CONTACTING, RESILIENT CONTACT BANDS (19) MAY BE SNAPPED ONTO THE RAILS (4) INTO ENGAGEMENT WITH THE BARED SEATING SURFACES (12). THE RESILIENT CONTACT BANDS INCLUDE SHARP-EDGED BREAKOUTS (22) FOR CONDUCTIVE ENGAGEMENT WITH PLATES (9) FOR EFFECTING A SHIELDED ENCLOSURE ABOUT THE CIRCUIT BOARDS (2).(FIG 3)
Patent MY-117156-A (MY)
Title: Pharmaceutical composition for oral administration
Inventor: ALEMAN CLAUDE
IPC: A61K47/48
Filed: 1998-12-24
Abstract: THE PRESENT INVENTION RELATES TO AN AQUEOUS SOLUTION CONTAINING 1-[2- (2-NAPHTHYL) ETHYL] -4- (3- TRIFLUOROMETHYLPHENYL) -1,2,3,6-TETRAHYDROPYRIDINE HYDROCHLORIDE (HYDROCHLORIDE OF SR 57746), ALSO COMPRISING ß -CYCLODEXTRIN (ß-CD) AND A PHARMACEUTICALLY ACCEPTABLE ACID OR BUFFER TO GIVE A PH OF LESS THAN OR EQUAL TO 3.
Patent MY-117966-A (MY)
Title: Body exudates absorbent article having exposed zone of alternating troughs of crests
Inventor: MIZUTANI SATOSHI
IPC: A61F13/511
Filed: 1999-06-01
Abstract: BODY EXUDATES ABSORBENT ARTICLE INCLUDING A LIQUID-ABSORBENT CORE (4) HAVING TRANSVERSELY OPPOSITE SIDE EDGES EXTENDING IN PARALLEL TO EACH OTHER IN A LONGITUDINAL DIRECTION OF THE ARTICLE, A LIQUID-PERVIOUS TOPSHEET (2) COVERING AN UPPER SURFACE OF THE CORE AND A LIQUID-IMPERVIOUS BACKSHEET (5) COVERING A LOWER SURFACE OF THE CORE, THE TOPSHEET BEING FONNED IN A ZONE COVERING THE CORE WITH A PLURALITY OF ALTERNATING TROUGHS (2A) AND CRESTS (2B) CONTINUOUSLY UNDULATING IN A TRANSVERSE DIRECTION OF THE ARTICLE AND THESE TROUGHS AND THE CRESTS EXTENDING IN THE LONGITUDINAL DIRECTION, AND THEREBY MAINTAINING AN INITIAL SOFT ELASTICITY OF THE TOPSHEET (2).FIGURE 1.
Patent MY-122222-A (MY)
Title: A dicing tape and a method of dicing a semiconductor wafer
Inventor: SENOO HIDEO
IPC: C09J7/29
Filed: 1999-08-06
Abstract: A DICING TAPE (1) COMPRISING A SUBSTRATE SHEET (2) AND A PRESSURE-SENSITIVE ADHESIVE LAYER (3) FORMED ON ONE SURFACE OF THE SUBSTRATE SHEET (2), WHEREIN THE SUBSTRATE SHEET (2) COMPRISES AN UPPER LAYER (21) IN DIRECT CONTACT WITH THE PRESSURE-SENSITIVE ADHESIVE LAYER (3), AN INTERMEDIATE LAYER (22) ADJACENT TO THE UPPER LAYER (21), AND A LOWER LAYER (23) ADJACENT TO THE INTERN1EDIATE LAYER (22), AND AN ANTI-EXTENSIBILITY (A) OF THE UPPER LAYER (21), AN ANTI-EXTENSIBILITY (B) OF THE INTERMEDIATE LAYER (22), AND AN ANTI- EXTENSIBILITY (C) OF THE LOWER LAYER (23) SATISFY THE EQUATION (I) : B < A < C (I), THE ANTI-EXTENSIBILITY BEING A PRODUCT OF A MODULUS OF ELASTICITY AND A LAYER THICKNESS, IS DISCLOSED. THE PRESENT DICING TAPE (1) CAN UNIFORMLY AND SUFFICIENTLY ENLARGE DICING LINES WITHOUT AFFECT BY A MODULUS OF ELASTICITY OF A PRESSURE-SENSITIVE ADHESIVE, AND IS RARELY BROKEN AT THE DICING LINES.
Patent SI-20879-A (SI)
Title: Procedure and device for punching heaps of printed material according to model
Inventor: MESTEK BOJAN
IPC: D03D39/24
Filed: 2001-06-14
Abstract: Subject of the invention is a procedure and device for punching heaps of printed material according to model. The procedure and device for punching heaps of printed material according to model is based on the construction of a device, which enables the piling up of printed material according to model despite faults in rapport and previous course of the woof, while at the same time it fixes the heap of material during piling up on the cut-out panel, transport to the punching machine and the process of punching. The device enables the impaling of material exactly onto the required pattern and at the same time gives in under the pressure of the punching machine.
Patent SI-21300-A (SI)
Title: Pharmaceutical compositions with alginates
Inventor: PISEK ROBERT
IPC: A61K9/22
Filed: 2002-10-08
Abstract: A controlled release pharmaceutical composition having a specific ratio of sodium alginate and sodium-calcium alginate is given, which is suitable for once a day administration of poorly soluble drugs.
Patent SI-21758-A (SI)
Title: Rotor of wind-driven machine
Inventor: MILINKOVIC PERKO
IPC: F03D3/06
Filed: 2004-03-23
Abstract: Upper (+2', +2'', ...) or lower axles (-2', -2'', ...), to which upper or lower halfblades (+3'a, +3''a, ...,+3'b, +3''b, ...; -3'a, -3''a, ...,-3'b, -3''b, ...) are mounted respectively, are pivotably and circularly fixed at a uniform distance from each other on a carrying rotor plate (1) by means of respective upper bearings (+2'1a, +2''1a, ...,+2'1b, +2''1b, ...) or lower bearings (-2'1a, -2''1a, ..., -2'1b, -2''1b, ...) fixed to the plate (1) under the former ones. Each of two pairs of halfblades is mounted on a common axle at a displacement of 90 degrees to each other. Two upper or lower paired gears (+2'2a, +2'2b; +2''2a, +2''2b; ...; -2'2a, -2'2b; -2''2a, -2''2b; ....) are mounted at the ends of each upper and lower axle respectively in a way to grip pairly into each other. The plane of the plate (1) is the symmetry axis of upper and lower halfblade planes all the time. The proposed rotor excels in that mutual position of each pair of halfblades is adjusted automatically to the actual direction of their speed with regard to the direction of the wind: they fold down when moving against the wind to reduce their air resistance.
Patent SI-23043-A (SI)
Title: Surge protection with rotation disk
Inventor: PESIC RANKO
IPC: H02H3/20
Filed: 2009-04-24
Abstract: The surge protection with rotation disk (24) according to the presented invention includes a varistor body (14), terminal varistor electrodes, a rotating disk bracket (2) which is located in such a way that it completely covers the varistor body, a rotation disk (3), a spiral spring (4) and an enclosure of the surge protection (1). The overheating of the varistor body results in the disconnection of the terminal varistor electrodes (6) due to the melting of the flux which links the terminal electrode (6)                                         and the varistor body (14) through the opening (8) inside the rotation disk (2) bracket. The shift of the terminal electrode (6) through the opening (8) inside the rotation disk (2) bracket due to the melting of the flux triggers the movement of the rotation disk (3) around the rotation axis (16) on the rotation disk bracket. Under the influence of the spring force of the spiral spring (14) the aforementioned rotation disk (3) moves from one extreme position into another with a high angular speed and                                             covers the opening inside the rotation disk (2) bracket thus preventing the resulting electric arc. The technical implementation according to the invention is particularly suitable for applications regarding surge protection of power systems, where the breakdown of the varistor and burning can cause considerable material damage.
Patent SI-25098-A (SI)
Inventor: MATIJA ŠMALCELJ
IPC: G10D13/00
Filed: 2015-11-23
Abstract: Predmetni izum razkriva nov sistem za napenjanje in hitro menjavo opne (9) bobna, ki sestoji iz napenjalnega obroča (4), ki ima po obodu enakomerno razporejena pritrditvena ušesa (41), napenjalcev (6. 60), osnovnega telesa bobna (2), resonančnega obroča sestavljenega iz enakih ali različnih segmentov (3, 33), kjer so napenjalci opne (6) pritrjeni na osnovno telo bobna (2) s pomočjo vijačnih spojev (80) in kjer je na osnovno telo bobna (2) položena opna (9) na obročastem okvirju, kjer je na omenjeni obročasti okvir položen napenjalni obroč (4) tako, da os vsakega pritrditvenega ušesa (41) sovpada s pokončno osjo odgovarjajočega napenjalca opne (6). Izum nadalje razkriva tudi nov napenjalec (6, 60) opne (9), kot tudi postopek napenjanja in hitre menjave opne (9) bobna.
Patent TW-201230351-A (TW)
Title: Temperature sensing system for use in a rapid temperature process
Inventor: HUANG SHIEZEN STEVEN
IPC: G01J5/10
Filed: 2011-01-10
Abstract: A temperature sensing system for use in a rapid temperature process includes: a chamber having an interior for placing a photovoltaic device intermediate product; a support stage for receiving a photovoltaic device intermediate product; at least one heat source disposed above the chamber for downwardly emitting infrared ray to heat an absorbing layer on the photovoltaic device intermediate; and at least one black-body temperature detector disposed within the chamber and facing the light-absorbing layer of the photovoltaic device intermediate product for detecting the black-body radiation of the light-absorbing layer of the photovoltaic device intermediate product, so as to obtain the light-absorbing layer surface temperature, thereby to measure surface temperature of the light-absorbing layer more accurately so as to further improve the fabrication quality.
Patent TW-201139268-A (TW)
Title: Preparation process of trisilylamine
Inventor: HAMADA YOSHITAKA
IPC: C01B21/087
Filed: 2011-01-14
Abstract: Provided is a preparation process of trisilylamine capable of preparing high-purity trisilylamine more easily at a lower cost. More specifically, provided is a preparation process of trisilylamine, comprising a step of thermally decomposing perhydropolysilazane under an oxygen-free or low oxygen atmosphere.
Patent TW-201139187-A (TW)
Title: Storage bag system for wagons
Inventor: JOHNSON MARK
IPC: B62B9/26
Filed: 2011-01-14
Abstract: A storage bag system for a wagon includes a collapsible storage bag that is movable between an expanded configuration and a collapsed configuration. The storage bag system also includes a connector attaching the collapsible storage bag to sidewall of the wagon.
Patent TW-201231798-A (TW)
Title: Folded screen featuring memory recovery
Inventor: Zhang zhi-qin
IPC: E06B9/52
Filed: 2011-01-20
Abstract: A folded screen featuring memory recovery is disclosed. The folded screen is constituted by a plurality of connected folds so that peak and valley of each fold can become a crease alternating in parallel and staggered with each other, and between every two adjacent creases is connected with a collapsible surface. By means of collaboration of the creases and the collapsible surface, the folded screen is able to show a zigzag shape of repeated waves. Also, both sides of each peak and valley are respectively disposed with an auxiliary folding line in parallel with the crease. With the fixed concave shape of the auxiliary folding line, the spanning range of both sides of peak and valley can be more centrally collected, so that an elastic active pull-back force can be generated at that spot.
Patent TW-201216251-A (TW)
Title: Display and multi-view displaying switch method thereof
Inventor: HAN TSUNG-HSUN
IPC: G06F3/0487
Filed: 2011-01-25
Abstract: A multi-view displaying switch method of a display includes following steps. The display receives multiple channel signals, and captures multiple corresponding static images from the channel signals. The display displays the static images in a first multi-view pattern, and displays one multi-view switch key on the display. When the multi-view switch key is triggered, the display switches the first multi-view pattern to a second multi-view pattern to display the static images.
Patent TW-201203891-A (TW)
Title: Optical communication system and communication apparatus
Inventor: HOTTA YOSHIFUMI
IPC: H04B10/27
Filed: 2011-02-23
Abstract: This invention includes a ring network consisted of nodes (OLT1, ring nodes 21 to 2n) having a ROADM function, a remote node received in the node consisting the ring network, and a star network in which the remote node and one or more ONU (10G-ONU510, 1G-ONU51, 10G/1G-ONU5101) are connected via an optical coupler 4 in a one-to-many connection way, wherein a node (OLT1) of the nodes consisting the ring network performs a PON control action containing up-band allocation control with respect to respective ONU in the system.
Patent TW-201210235-A (TW)
Title: Method and apparatus for transmitting feedback request and method and apparatus for receiving feedback request in wireless communication system
Inventor: LEE WOOK-BONG
IPC: H04L1/16
Filed: 2011-02-25
Abstract: A method for transmitting a feedback request in a wireless communication system is provided. The method includes: transmitting feedback request control information to a user equipment (UE), wherein the feedback request control information includes a MIMO (Multi-Input Multi-Output) feedback bitmap indicating at least one MIMO feedback mode to be applied to the UE and a common parameter, and the common parameter comprises a parameter commonly requested for the UE to generate feedback information in the at least one MIMO feedback mode.
Patent TW-201237503-A (TW)
Title: Apparatus for attaching polarization plates and method of attaching polarization plates using the apparatus
Inventor: KIMURA SHIGERU
IPC: G02F1/13
Filed: 2011-03-02
Abstract: The present invention provides an apparatus for attaching polarization plates 1, which does not need to align the rotational phases of two suction tables 6, 6 and can reduce the manufacturing cost. The apparatus for attaching polarization plates 1 according to the present invention is provided with a polarization plate attaching unit 2 provided on vertically parted base tables 20, 21, and a conveyer 11 provided between the two base tables 20, 21, for horizontally conveying a transparent substrate 50. A pivot portion 62 is provided at the inner side of each base table 20, 21, and is capable of pivoting one end of the suction table 6 sucking polarization plates 4, 40 so that the suction table 6 can wobble. A hoisting mechanism is provided on each suction table 6 for wobbling the suction table 6. At the conveying lower side of the transparent substrate 50, there are attaching wheels 13, 13 for attaching the polarization plates 4, 40 to the transparent substrate 50. At the lower side of the conveyer 11, a table 10 is provided so that it can approach/leave the conveying path of the transparent substrate 50. The polarization plate attaching unit 2 is disposed on the table 10 so that it can move between a first position outside the position facing the conveyer 11 and a second position facing the conveyer 11.
Patent TW-201203065-A (TW)
Title: Noise cancellation technique for capacitive touchscreen controller using differential sensing
Inventor: JOHARAPURKAR ASHUTOSH RAVINDRA
IPC: G06F3/044
Filed: 2011-03-24
Abstract: A differential sensing scheme provides a means for detecting one or more touch events on a touch sensitive device in the presence of incident noise. Instead of sensing one touch sensitive channel, such as a row, column, or single touch sensor, multiple touch sensitive channels are sampled at a time. By sampling two nearby channels simultaneously and doing the measurement differentially, noise common to both channels is cancelled. The differential sensing scheme is implemented using simple switch-capacitor AFE circuitry. The originally sensed data on each individual channel is recovered free of common-mode noise. The recovered sensed data is used to determine the presence of one or more touch events and if present the location of each touch event on the touch sensitive device.
Patent TW-201141015-A (TW)
Title: Motor
Inventor: FREIXAS VILA RAMON
IPC: H02K53/00
Filed: 2011-04-13
Abstract: The rotor is formed by two parallel axes, group of magnets and a material to direct the magnetic orientation. The stator formed by group of magnets is close to the rotor. The stator axis is orthogonal to each axis of the rotor. The groups of magnets of each rotor axis attract one another and are arranged close behind. The groups of magnets are arranged in a spiral line and the distances between the rotor axes are different. The first group of magnets interacted with the stator is the one that the most far from each rotor axis and the last group of magnets interacted with the stator is the one that the closest from each rotor axis. The present invention improve a torque of a device, for example, the main force source for using a pedal of a bicycle is still from human muscle.
Patent TW-201203631-A (TW)
Title: Light emitting device and method of manufacturing the light emitting device
Inventor: SASANO HARUAKI
IPC: H01L33/62
Filed: 2011-04-15
Abstract: Provided is a light emitting device (100) having a substrate (1), a metal film (30) disposed on a mounting region (1a) on the substrate (1), a light emitting portion (20) including a plurality of light emitting elements (2) mounted on the metal film (30), a metal member (40) disposed on the substrate (1), constructing a positive terminal (3) and a negative terminal (4), each terminal having a pad portion (3a or 4a) and a wiring portion (3b or 4b) for applying electric power to the light emitting elements (2) through respective wiring portion (3b or 4b), and a wiring for plating, and a wiring for plating coupled to the metal film (30) and extended to a side surface of the substrate (1). The metal film (30) and the metal member (40) are separately disposed from each other, the wiring portion (3b) of the positive terminal (3) and the wiring portion (4b) of the negative terminal (4) are disposed along a peripheral portion of the mounting region (1a). The metal member (40) is disposed on the mounting region (1a) side of the substrate (1) and is spaced apart from outer edges of the substrate (1).
Patent TW-201244598-A (TW)
Title: Thin carrier device
Inventor: YU HONG-CHI
IPC: H05K7/10
Filed: 2011-04-22
Abstract: The present invention is to provide a thin carrier device with a support pad's length positioned at a USB port's height for stably supporting a carrier segment so as to electrically connect a USB metal contact to a female connector of the USB port effectively without problems such as invalid electrical connection or poor contact between a USB metal contact and a female connector of a computer's USB port affected by the integrated circuit module's reduced thickness. Through reducing thickness of the integrated circuit module, the present invention can be integrated with other thin products including but not limited to cards, paper cards or business cards for the purpose of thinning.
Patent TW-201248092-A (TW)
Title: Method for air exchanging shaft and the structure thereof
Inventor: TAI CHANG-HSIEN
IPC: F24F7/04
Filed: 2011-05-24
Abstract: A method for air exchanging shaft and the structure thereof comprises: a outer-pipe having the first end and the second end; a inter-pipe having the first end and the second end and disposed inside the outer-pipe to formed a intake in the inter-pipe and a exhaust between the inter-pipe and outer-pipe; a pipe-mask having a outer-wall combined with the inter-pipe's second end in the one side and a air-opening in the other side; the first end of inter-pipe and outer-pipe combined with a independent space to be a air exchanging.
Patent TW-201240403-A (TW)
Title: Intersymbol interference removal method and receiver
Inventor: LEE YAO-NAN
IPC: H04L27/26
Filed: 2011-06-16
Abstract: An ISI removing method for a received signal executed by a receiver in an OFDM system to estimate a frequency-domain data signal carried on the received signal is provided. The method comprises the steps of: removing the first interference of known signal of the received signal; estimating a first data signal according to the received signal; performing a hard decision operation on the first data signal to generate a first frequency-domain signal; performing an Inverse Fast Fourier Transform operation on the first frequency-domain signal to generate a first time-domain signal; creating a tailing signal according to the first time-domain signal; removing a preamble signal from the received signal to generate a second signal; combining the first time-domain signal and the second signal to estimate the frequency-domain data signal.