baber/WOPTO huggingface dataset:
Patent WO-2021230386-A2 (WO)
Title: Antiviral hard-coat film, antiviral adhesive-treated sheet using same, and antiviral veneer
Inventor: NAKAJIMA TOMOMI
Filed: 2021-09-28
Abstract: The present invention provides: an antiviral hard-coat film that is useful as a material for an antiviral decorative sheet and that is capable of expressing highly-reproducible antiviral properties; an antiviral adhesive-treated sheet that uses the antiviral hard-coat film; and an antiviral veneer. The present invention specifically provides an antiviral hard-coat film comprising a crosslinked curing-type resin layer on the outermost layer, wherein the hard-coat film is characterized in that : (1) the crosslinked curing-type resin layer contains silver-containing inorganic particles and a cured product comprising a crosslinked curing-type resin; and (2) the silver ion concentration of the hard-coat film, as measured by ICP-OES, is 0.018 μg/cm 2  or higher.
Patent WO-2005016763-A2 (WO)
Title: Contenant d'emballage pour aliments fermentes
Inventor: PARK JOON-MYOUNG
IPC: B65D85/50
Filed: 2004-08-12
Abstract: L'invention concerne un contenant d'emballage pour des aliments fermentés, qui présente une fonction désodorisante excellente grâce à l'évacuation des gaz de fermentation produits par les aliments vers l'extérieur, tout en passant les gaz par un absorbant. Le récipient d'emballage comprend une plaque de compression (60) permettant de comprimer une partie supérieure de la plaque de compression, de manière à empêcher le contact entre les aliments et l'air, une ou plusieurs tiges (61) de support disposées sur la surface supérieure de la plaque de compression, ce qui permet de supporter un revêtement empêchant ce dernier d'être détruit par une charge trop lourde, un tissu (50) perméable au gaz, non tissé situé sur une dépression d'entrée de flux du revêtement, et une composition (30) absorbante réactive capable d'éliminer efficacement les composés de soufre très odorants produits par les aliments fermentés et contenus dans des gaz de fermentation.
Patent WO-2009072755-A2 (WO)
Title: Procédé et système de sécurité des informations numériques et pilote fonctionnant en mode 0
Inventor: KIM JONG YOUNG
IPC: G06F21/10
Filed: 2008-11-13
Abstract: L'invention concerne un procédé et un système de sécurité des informations numériques et un pilote fonctionnant en mode 0. Le système de sécurité des informations numérique comprend un module utilisateur configuré pour fonctionner en mode utilisateur et pour fournir des informations de paramétrage de l'environnement comprenant des informations de politique concernant l'utilisation des informations numériques, et un pilote configuré pour fonctionner en mode 0 afin d'acquérir des informations générées par une application du mode utilisateur en vue de l'utilisation des informations numériques et pour effectuer une gestion des droits concernant l'utilisation des informations numériques sur la base des informations acquises et des informations de politique. En conséquence, la construction d'un tel système de sécurité peut être simplifiée et la sécurité de ce système peut être améliorée.
Patent WO-2009145456-A2 (WO)
Title: Heterocyclic derivatives
Inventor: AHN SUNG OH
IPC: C07D498/04
Filed: 2009-03-31
Abstract: The present invention relates to heterocyclic derivatives, and more particularly, to novel heterocyclic derivatives useful for the preparation of medicaments for treating diseases related to uric acid.
Patent WO-2010053311-A2 (WO)
Inventor: AN JUNG-AE
IPC: G11B7/135
Filed: 2009-11-06
Abstract: 본 발명은 위상지연소자 및 이를 포함하는 광픽업장치에 관한 것으로서, 더욱 상세하게는 제1 및 제2 위상지연층을 적층하여 위상지연소자를 구현하되 제2 위상지연층의 위상지연값에 대한 상기 제1 위상지연층의 위상지연값의 비를 최적화함으로써 파장이 상이한 2개의 레이저광에 대하여 각각 파장의 1/4 만큼 위상지연을 시킬 수 있는 위상지연소자를 제공하기 위한 것이다. 이를 위하여 본 발명에 따른 위상지연소자는 CD용 레이저광 및 DVD용 레이저광의 광경로상에 배치되어 상기 레이저광들의 편광상태를 변환시키는 위상지연소자에 있어서, 적층되어 있는 제1 및 제2 위상지연층을 포함하며, 제2위상지연층의 위상지연값이 140nm 내지 190nm이며, 상기 제1위상지연층의 위상지연값이 450nm 내지 1300nm인 것을 특징으로 한다.
Patent WO-2010071336-A2 (WO)
Inventor: KIM KYEONG-SOO
IPC: C08J11/00
Filed: 2009-12-15
Abstract: L'invention concerne un procédé de recyclage de PSE usagé et un équipement associé. Le procédé de recyclage selon l'invention comprend une étape de préparation de solvant dans laquelle est préparée une solution contenant du glutarate de diméthyle à une concentration supérieure ou égale à 60 %, de l'adipate de diméthyle à une concentration comprise entre 10 et 30 %, du succinate de diméthyle à une concentration comprise entre 10 et 30 %; une étape dans laquelle l'EPS usagé est broyé; une étape dans laquelle l'EPS broyé est dissous, et l'air et le PS sont séparés; une étape dans laquelle le PS séparé est refroidi et gélifié; une étape dans laquelle le PS gélifié est placé dans l'eau pour retirer tout solvant restant dans le PS; une étape dans laquelle le PS lavé est comprimé; une étape dans laquelle le PS comprimé est extrudé; une étape dans laquelle le solvant résiduel secondaire est extrait du PS extrudé; et une étape dans laquelle le PS coupé est séché. Le solvant est chauffé à une température comprise entre 30 et 70°C de sorte que l'EPS subit une lente dissolution dans le solvant, le PS dissous est refroidi à une température comprise entre -10°C et 10°C pour une gélification, le PS gélifié est placé dans l'eau pour éliminer le solvant restant dans le PS par lavage, l'eau de lavage et le solvant générés suite au lavage à l'eau sont séparés en fonction de leurs différences de densité pour être réutilisés, et le PS extrudé à l'étape d'extrusion du PS est immédiatement placé dans l'eau, puis lavé, et le solvant et l'eau générés par un tel lavage sont séparés par un procédé de séparation centrifuge fondé sur leur différence de densité, puis sont réutilisés. L'appareil utilisé à cette fin, comprend par exemple, un dispositif d'ajout (5) monté à l'intérieur d'un véhicule pour traiter l'EPS usagé, un dispositif de broyage (1) monté à l'intérieur du dispositif d'ajout (5) et présentant une lame de broyage (8), un réservoir de solvant (2) pour traiter l'EPS usagé broyé dans le dispositif de broyage (1), qui contient un solvant utilisé pour dissoudre l'EPS usagé, et un agitateur (3) qui est monté à l'intérieur du réservoir de solvant (2) pour agiter l'EPS usagé au moyen d'un moteur (6).
Patent WO-2010104291-A2 (WO)
Inventor: PARK SUNG LIM
IPC: G01J1/02
Filed: 2010-03-05
Abstract: 본 발명은 검사대상광원에 대한 제조상태를 신속하고 정확하게 검사할 수 있는 광원특성 검사 시스템 및 검사방법에 관한 것이다다. 이를 위해 본 발명은 검사 대상이 되는 복수개의 검사대상광원과 각각 일대일 대응되도록 구비되며, 구획된 영역에서 상기 검사대상광원에서 발광되는 빛을 측정하는 복수개의 컬러센서, 상기 컬러센서에서 측정된 데이터를 바탕으로 상기 검사대상광원에 대한 특성값을 산출하는 제어부, 그리고 상기 복수개의 검사대상광원이 기판상에 일정간격으로 배열된 검사대상광원 모듈을 반입하여 상기 검사대상광원들이 상기 컬러센서와 일대일 대응되는 위치에 배치되어 고정되도록 하는 설치유닛을 포함하는 광원특성 검사 시스템 및 검사방법을 제공한다.
Patent WO-2010131862-A2 (WO)
Inventor: OH GWANG MAN
IPC: G06Q10/00
Filed: 2010-05-04
Abstract: The present invention relates to an intelligent taxi stand system for improving the efficiency of taxi service and achieving safety and convenience for taxi passengers. The intelligent taxi stand system comprises: an automatic portable RFID device vending machine (10) for selling portable devices with RFID tags attached thereon; an RFID reader (20) for recognizing portable devices with RFID tags; a display device (30) for displaying the number of waiting passengers, the waiting time, and the number of taxis in service counted by the RFID reader (20); a wired/wireless communication device (40) for transmitting/receiving information on the number of waiting passengers and taxi service; a central processing unit (50) for controlling the automatic portable RFID device vending machine (10), the RFID reader (20), the display device (30) and the wired/wireless communication device (40); and a storage device (60) for storing the information on the number of waiting passengers and taxi service.
Patent WO-2010134735-A2 (WO)
Title: Mobile multipurpose temporary bridge
Inventor: PARK JUNGKEUK
IPC: E01D15/12
Filed: 2010-05-17
Abstract: The present invention relates to a mobile multipurpose temporary bridge comprising: a support block (10) having a cabinet-shaped body, and both sides of which have respective support surfaces (12) and the lower surface of which has a shaft hole (14); and a locking shaft (20) secured to the shaft hole (14) of the support block (10) to connect and lock the support blocks (10) together such that the support blocks (10) are rotatable. Each of the support surfaces (12) is tapered as it goes toward an end thereof. A locking portion (13) has a recess and a protrusion which are symmetrically formed at both sides thereof. The shaft hole (14) is formed through the protrusion of the locking portion (13). The support blocks (10) are interconnected, and locking shafts (20) are secured into the respective shaft holes (14). Then, ends of the locking shafts (20) are fixed by means of respective anti-escape members (21) such that the support blocks (10) are folded or unfolded about the respective locking shafts (20). In addition, the support surfaces (12) formed at both sides of each of the support blocks (10) have protrusions (15) and grooves (16) arranged alternately with one another such that the support blocks (10) can be fitted together, thus increasing the strength of the product.
Patent WO-2010151087-A2 (WO)
Title: Procédé de réalisation d'un masque en demi-teintes
Inventor: KIM MOOSUNG
IPC: H01L21/027
Filed: 2010-06-25
Abstract: La présente invention concerne un procédé de réalisation d'un masque en demi-teintes conçu pour présenter de multiples unités de demi-perméation au moyen d'une seule matière à demi-perméation, le procédé de réalisation comprenant : la mise en forme d'une matière à demi-perméation sur un substrat; et la formation d'une zone à demi-perméation faite d'au moins une matière à demi-perméation ayant une transmittance de lumière différente de celle de la première matière à demi-perméation, par traitement de surface au plasma de la matière à demi-perméation et réglage de la transmittance de la matière à demi-perméation.
Patent WO-2011031035-A2 (WO)
Title: Apparatus for managing the operation of a ship block
Inventor: BAEK TAE HYUN
IPC: G06F17/00
Filed: 2010-09-01
Abstract: According to the present invention, an apparatus for managing the operation of a ship block comprises a combination of a ship block size and location measuring system, a transporter monitoring system, a block transportation monitoring system, and a transportation address management system. The ship block size and location measuring system comprises an orientation angle sensor, a range finder, an RFID reader and a control system. The control system comprises a block size and location measuring server, a vector calculation module, a coordinate calculation module, a size and location extraction module, and a memory module.
Patent WO-2011105755-A2 (WO)
Title: Broadcasting signal transmitter/receiver and broadcasting signal transmission/reception method
Inventor: KO WOO SUK
IPC: H04L27/26
Filed: 2011-02-23
Abstract: Disclosed is a broadcasting signal transmitter. A broadcasting signal transmitter, according to one embodiment of the present invention, comprises: a BICM encoder, which FEC encodes and bit interleaves PLP data and signaling information; a frame builder, which builds a frame by cell mapping the PLP data and the signaling information; a MISO encoder, which MISO encodes PLP data for MISO transmission, which is included in the PLP data, and the signaling information; and an OFDM generator, which OFDM modulates the PLP data and the signaling information, wherein the BICM encoder includes a MIMO encoder, which MIMO encodes PLP data for MIMO transmission, which is included in the PLP data.
Patent WO-2012093784-A2 (WO)
Title: Dispositif d'affichage d'informations et procédé associé
Inventor: RHEE EUNWHA
IPC: G06F3/14
Filed: 2011-12-19
Abstract: L'invention concerne un dispositif d'affichage d'informations et un procédé associé, permettant de déverrouiller rapidement et efficacement un écran tactile lorsque l'écran tactile est dans un état verrouillé. Le dispositif d'affichage d'informations comprend un module d'affichage comportant un écran tactile ; une unité de commande affichant une image de verrou sur le module d'affichage lorsque l'écran tactile est à l'état verrouillé, et affichant une première icône indiquant l'état verrouillé de l'écran tactile sur l'image de verrou, une première région destinée à déverrouiller l'état verrouillé de l'écran tactile sur l'image de verrou, et une seconde région indiquant une seconde icône liée à un programme d'application sur l'image du verrou.
Patent WO-2012087004-A2 (WO)
Title: Utilisation des gènes ire1 et hxl1 de la voie de signalisation upr pour le traitement d'une infection fongique et de la méningite
Inventor: BAHN YONG SUN
IPC: G01N33/15
Filed: 2011-12-20
Abstract: La présente invention concerne l'utilisation des gènes IRE1 et HXL1 de la voie de signalisation UPR pour le traitement d'une infection fongique et de la méningite. Dans l'invention, il a été nouvellement découvert que la suppression des protéines Ire1 et Hxl1 (HAC1 et gène XBP1-Like 1), nouvellement identifiées dans  Cryptococcus neoformans , et des gènes codant pour les protéines, produit un effet antifongique et un effet de traitement de la méningite. Sur la base de cette découverte, un candidat qui peut présenter un effet synergique lorsqu'il est co-administré avec un agent antifongique ou un agent de traitement de la méningite existants peut être criblé et une nouvelle composition pharmaceutique ayant un effet antifongique et un effet de traitement de la méningite peut être produit.
Patent WO-2012134170-A2 (WO)
Inventor: HWANG SUNG YEOUN
IPC: A61K36/74
Filed: 2012-03-28
Abstract: La présente invention concerne une nouvelle utilisation d'un extrait de racine de Rubia, et plus particulièrement, une composition pour le traitement du cancer du poumon et une composition pour des produits cosmétiques contenant, comme ingrédient actif, un extrait de racine de Rubia ayant d'excellents effets prophylactiques et thérapeutiques sur le cancer du poumon. L'extrait de racine de Rubia, selon la présente invention, élimine la prolifération des cellules cancéreuses dans le poumon et induit leur apoptose, et peut ainsi être utilisé efficacement dans la prophylaxie et le traitement du cancer du poumon.
Patent WO-2012141524-A2 (WO)
Title: 무선 접속 시스템에서 랜덤 억세스 성공률을 높이기 위한 셀 재선택 방법
Inventor: LEE SONGGUN
IPC: H04W36/30
Filed: 2012-04-13
Abstract: 본 발명은 무선접속 시스템에 관한 것으로, 보다 상세히는 단말이 임의 접속에 실패한 경우 효율적으로 셀 재선택을 수행하기 위한 방법 및 이를 수행하기 위한 장치에 관한 것이다. 본 발명의 일 실시예에 따른 무선 접속 시스템에서 사용자 기기가 셀을 재선택하는 방법은, 제 1 조건에 따라 선택된 제 1 셀(Cell)로 임의 접속 절차를 개시하는 단계; 및 상기 개시하는 단계에 시작된 타이머가 만료될 때까지 상기 임의 접속 절차가 성공적으로 완료되지 않는 경우, 제 2 조건에 따라 셀 재선택을 수행하는 단계를 포함할 수 있다.
Patent WO-2013019027-A2 (WO)
Title: Apparatus for fabricating ingot and method for fabricating ingot
Inventor: KIM BUM SUP
IPC: C30B23/00
Filed: 2012-07-26
Abstract: Disclosed are an apparatus for fabricating an ingot and a method for fabricating the ingot. The apparatus comprises a crucible to receive a source material, and a guide member over the source material. The guide member comprises a source material feeding part.
Patent WO-2013024989-A2 (WO)
Title: Secondary battery pack
Inventor: CHOI JONG WOON
IPC: H01M50/562
Filed: 2012-08-01
Abstract: A secondary battery pack according to the present invention comprises: a battery cell provided with a negative pole terminal and a positive pole terminal on one surface including a sealed surplus portion; and a protective circuit module (PCM) which electrically connects to the battery cell through the negative pole terminal and the positive pole terminal, wherein the PCM comprises a substrate on which a positive terminal connection portion and a negative pole terminal connection portion that connect to the negative pole terminal and the positive pole terminal are positioned, and is provided with a protection circuit, and a PCM case which is formed by receiving the substrate through one surface that is open, wherein the substrate is mounted on the sealed surplus portion of the battery cell by coupling to the negative pole terminal and the positive pole terminal of the battery cell through the negative pole terminal connection portion and the positive pole terminal connection portion, and wherein the PCM case receives the substrate that is mounted on the sealed surplus portion.
Patent WO-2014168433-A2 (WO)
Title: Material composition for promoting hair growth, gray hair melanin regeneration and skin regeneration
Inventor: KWEON SEONG BEOM
Filed: 2014-04-10
Abstract: Disclosed is a composition, wherein sea silt and/or a sea silt extract, silt and/or a silt extract, and an extract and/or a fermentation solution, containing a SiO 2  (silicon dioxide) ingredient, uniformly containing natural minerals useful for the human body, and natural mineral ingredients such as Al (aluminum), Fe (iron), Mg (magnesium), P (phosphorus), K (potassium), Ca (calcium), Na (sodium) and the like in a large quantity, are mixed, thereby enabling production of medical supplies, quasi-drugs, cosmetics and the like, removing waste matter and cosmetic residues deposited deeply in the pores, dead cells, excessive sebum, pimples, blemishes and the like by being absorbed deeply into the skin due to remarkable adsorption even when mixed to be used in other products, promoting skin regeneration by providing oxygen to vascular cells through blood circulation stimulation, removing pseudo-wrinkles with a strong pore shrinkage effect due to collagen reinforcement, providing healthy skin by supplying nutriments to the skin membrane, and further promoting hair growth, grey hair melanin regeneration and skin regeneration through the prevention of skin roughening, alleviation of a wound and reinforcement action of enabling various nutrients to be absorbed into the skin by activating the metabolism of the skin. In addition, the grey hair melanin regeneration is carried out by changing grey hair to black hair through the normalization of hair melanin rather than dyeing or coating. The material composition for promoting hair growth, grey hair melanin regeneration and skin regeneration of the present invention, which is used for treatment and/or management, improvement and protection of the skin, mucous membrane and hair, and treatment and or management and alleviation of diseases, comprises two or more materials selected from the group consisting of a mixture and/or a mixture solution obtained by mixing 0.001-99.99 wt% of purified water, 0.001-99.99 wt% of sea silt and/or a sea silt extract, 0.001-99.99 wt% of silt and/or a silt extract, and 0.001-99.99 wt% of an extract and/or a fermentation solution and mixing 1) purified water, 2) sea silt and/or a sea silt extract, 3) silt and/or a silt extract, and 4) an extract and/or a fermentation solution.
Patent WO-2015020368-A2 (WO)
Title: 안티포그 렌즈 및 그 제조 방법
Inventor: KIM JIN TAE
IPC: G02C11/08
Filed: 2014-08-04
Abstract: 본 발명은 안티포그 렌즈 및 그 제조 방법에 관한 것으로, 에이디시 렌즈(ADC LENS), 아릴-디글리콜-카보네이트 렌즈, 폴리카보네이트(POLYCARBONATE), PMMA(POLYMETHYL METHACRYLATE, ACRYL LENS), 폴리우레탄, 에이디시(ADC), 디알릴이소프탈레이트(DAP)계수지, 폴리아미드(POLYAMIDE), 치오우레탄계수지, 취소계우레탄수지, 트라이벡스(TRIVEX), 엔엑스티(NXT) 중 어느 한 1종의 소재로 된 플라스틱 렌즈로서 생지렌즈(Blank Lens) 또는 하드코팅 렌즈(Hard Coating Lens)의 전후 면 전체에 평균입경이 1 내지 100nm 범위이고 아나타제상을 필수적으로 포함하는 결정질 이산화티타늄 또는 상기 결정질 이산화티타늄에 금속성분을 도핑한 금속도핑된 결정질 이산화티타늄 표면상에 결정질 이산화티타늄의 중량을 기준으로 10 내지 50중량% 범위의 비정질 이산화티타늄층을 형성한 결정질 이산화티타늄 코어-비정질 이산화티타늄 쉘 형태의 이산화티타늄 광촉매와 분산제 및 분산매질을 포함한 광촉매 용액 80 내지 95중량부, 경화성 바인더로서 R1가 비닐기, 또는 메타크릴록시기, 메르캅토기, 아미노기 또는 에폭시기를 갖는 C1~C4의 탄화수소기, R3은 C1~C8의 탄화수소기 또는 아실기, a 및 b는 각각 0 또는 1인, R1aR2bSi(OR3)4-a-b식으로 표시되는 알코올시실란, 또는 그 가수분해물 또는 부분 가수분해물인 알콕시실란계 화합물 용액 5 내지 20중량부 및 레벨링제 용액 10 내지 40중량부를 포함한 코팅액을 0.1~7㎛의 두께로 형성된 친수성 코팅층을 포함한 안티포그 렌즈이다. 위와 같은 본 발명은 생지렌즈(Blank Lens) 또는 하드코팅 렌즈(Hard Coating Lens)에 친수성 코팅층을 포함한 친수성 안티포그 렌즈 코팅층을 형성함으로써 렌즈의 투명성을 유지하는 안티포그 기능(Antifog Function)이 뛰어나고 내마모성 및 내구성이 우수한 효과가 있다. 따라서, 온도변화에 따른 김 서림 현상을 방지하는 렌즈를 안경렌즈로서 안경착용자들에게 제공할 수 있음은 물론 망원경이나 현미경, 카메라 렌즈 등 다양한 분야에 안티포그 기능(Antifog Function)이 뛰어난 광학렌즈를 제공할 수 있다.
Patent WO-2019027257-A2 (WO)
Title: Ice cream stick
Inventor: KIM BYUNGYONG
IPC: A23G9/50
Filed: 2018-08-01
Abstract: The present invention relates to a technique of reutilizing waste coffee. A waste coffee-reutilized ice cream stick according to one embodiment of the present invention comprises: a waste coffee powder; and a biocompatible binder for binding the waste coffee powder to mold the powder into an ice cream stick.
Patent WO-2020204629-A2 (WO)
Title: Vehicle door coupling device
Inventor: CHOI JUNG WOO
IPC: B60J5/04
Filed: 2020-04-02
Abstract: The present invention relates to a vehicle door coupling device and, more specifically, to a vehicle door coupling device for mechanically coupling, to each other, a first member having a first hole and a second member having a second hole at the position corresponding to the first hole, the device comprising: a catching part for supporting the first member; a crossbar for supporting the second member and coupling the second member to the first member when rotating to a final coupling position; and a shaft which is for supporting the catching part and the crossbar and which has a hook part for allowing the shaft to be caught on the first member at a temporary coupling position, wherein the shaft has a shape allowing the shaft to be fitted into the first hole of the first member and the second hole of the second member and rotatably pass therethrough, and the shaft has an airtight means capable of maintaining airtightness between the shaft and the first hole of the first member at the final coupling position.
Patent WO-2013115643-A2 (WO)
Title: Stimulateur de tissu ou neurostimulateur
Inventor: VAN DONGEN MARIJN
Filed: 2013-01-29
Abstract: La présente invention a trait à un stimulateur de tissu ou à un neurostimulateur, comprenant un bloc d'alimentation (Vdd) et un générateur d'impulsions implantable (IPG) qui est alimenté par ledit bloc d'alimentation (Vdd), auquel une ou plusieurs électrodes sont connectées ou peuvent être connectées en vue de fournir des impulsions à partir du générateur d'impulsions à une zone d'intérêt ou à un tissu d'un patient de sorte à fournir à ladite zone d'intérêt ou audit tissu une stimulation électrique, lequel générateur d'impulsions comprend un circuit de commutation qui fournit une connexion intermittente avec l'électrode ou les électrodes, lequel générateur d'impulsions comprend au moins une bobine d'induction (L) permettant de stocker l'énergie provenant du bloc d'alimentation (Vdd) et de la libérer par la suite à la zone d'intérêt ou au tissu du patient par l'intermédiaire de l'électrode ou des électrodes.
Patent WO-2005116686-A2 (WO)
Inventor: HJELMSTAD JENS FREDRIK
IPC: G01S3/74
Filed: 2005-02-17
Abstract: A method and arrangement for finding the direction to an emitter source by determining the spatial frequency of a signal received from the source in a sensor panel and comparing the spatial frequency with the instantaneous frequency. The panel includes a first matrix of sensors and a second matrix of sensors interleaved with the first matrix. The spatial frequency is determined by comparing the signals received by the first and second sensor matrices.