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WO/1992/012402 |
A magnetostrictive element, which may be of rectangular shape, is positioned next to a hard magnetic biasing element field patterns recorded therein which bias the magnetostrictive element to resonate at selected frequencies, particularl...
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WO/1992/012401 |
Apparatus for indicating the value of a variable comprising first and second members moveable relative to each other as a function of said variable, a plurality of elements of a first type on one of said members, at least one element of ...
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WO/1992/007286 |
The device is associated with an object to be identified, such as an underground pipe or other embedded object, for example, in civil engineering works. The device carries coding elements which are detectable remotely, corresponding on a...
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WO/1992/005533 |
An article of metal (10) has a data storage device or tag (12) embedded therein, the tag (12) being arranged for electrostatically and/or electromagnetically coupling to an external read/write sensor. The article may comprise a drill pip...
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WO/1991/019302 |
An improved automated method for the manufacture of alternatively sized passive transponder devices is presented which utilizes a single leadframe design and manufacturing process, including automated coil winding and wire-to-lead termin...
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WO/1991/019306 |
An improved automated method for the manufacture of small implantable passive transponder devices (20) is presented in which semiconductor wafer die (26) are bonded to a conductively coated tape leadframe (24). This tape, with die attach...
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WO/1991/012119 |
A magnetic marker serving to locate, trace, and identify an elongated hidden object, such as a buried utility pipe, duct, conduit, or fiber optic cable, is manufactured by applying magnetic material to a substrate (26) that is elongated ...
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WO/1991/004503 |
A marker tape (10) for location of a buried conduit (24) having a plurality of electronic markers (14) spaced thereon at predetermined intervals. The distance between the markers encodes information about the buried conduit (24). The tap...
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WO/1990/010879 |
In order to locate, trace, and identify hidden elongated objects (12), such as buried fiber optic cables, the objects (12) are provided with elongated permanent magnet identifier devices having magnetic fields that may be detected at a d...
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WO/1990/009584 |
A protective backing (22) for composite sheets (20) and a method for detecting the presence of protective backing within a stack of composite sheets. The protection of the surfaces of uncured composite sheets is provided by applying a pr...
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WO/1990/007760 |
An electronic article surveillance system (1) which is capable of identifying and discriminating between the different signatures of tags (2), improving the reliability of the system and even permitting the tags (2) to be classified by t...
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WO/1990/001752 |
An electronic timing apparatus for determining precisely when vehicles pass over a particular line on a road, particularly a race track (20), has a series of separate loop antennas (26), arranged in closely adjacent relationship one to a...
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WO/1989/012916 |
For use in an electronic security system, an antenna system which provides a magnetic field which is substantially zero at distances large compared to the dimensions of the antenna, and has magnetic coupling between transmitting and rece...
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WO/1989/006810 |
A method for installation and subsequent location of a concealed object such as an underground cable or pipe comprises locating on or near the object a detection element formed of a ferromagnetic alloy having a high permeability and low ...
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WO/1989/003537 |
An inductive proximity detector (4) has a high-frequency alternating magnetic field which is influenced by an approaching object (3). An alternating magnetic field is produced by a wobble-frequency alternating current (2), and the approa...
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WO/1988/009979 |
This application discloses a method of recognising and/or locating preselected categories of articles, which comprises applying to the articles a plurality of magnetic elements in predetermined associations (e.g. with predetermined numbe...
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WO/1988/004436 |
An artifact (2) which is being intentionally covered with a material (10) of low magnetic permeability has a permanently magnetic element (14) atop or integral with the artifact. Subsequent to the covering, the artifact is located by pas...
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WO/1988/002852 |
A device for locating junction boxes (2) temporarily concealed behind panels (1) has a magnetic centering member (3) for mounting in the center of the box (2) before the panel is mounted, and a detector (4) with needles (11) which, when ...
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WO/1986/004172 |
Identification tags for identifying objects, for example goods. The tags contain a number of electrical resonance circuits all of which are tuned to different resonance frequencies and each of which consist of an inductance and a capacit...
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WO/1986/001924 |
Methods and apparatus for producing alternating electromagnetic fields for use in theft detection and surveillance systems include series-type electrical drive circuits (31, 32, 33, 34) for energizing the field-generating coil windings (...
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WO/1985/003831 |
Passive integrated transponder (PIT). In the past, changes in temperature could produce spurious variations in a frequency produced by a transponder which were difficult to differentiate from variations produced by the transponder. In so...
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WO/1983/001306 |
A subterranean marker of the earth coil type is made as a longish and narrow cylindrical unit which is easy to mount in a hole without real digging work. The unit includes a resonance circuit having a coil which is wound on a ferrite cor...
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JP2012185035 |
To automatically update necessary information to identify a precise position of a vehicle.A control center that controls a position of a vehicle includes a storage part for storing a database that associates a beacon ID of a DSRC antenna...
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JP2012122955 |
To provide a detection device and a program capable of preventing erroneous detection due to noise.A detection device includes an exciting coil 11 adapted to generate an alternating magnetic field in a region to be a detection object, an...
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JP2012100164 |
To save time and effort to check presence/absence of one's belongings manually, and to prevent the belongings from being left behind without fail.A mobile phone 1, as a wireless communication device according to one embodiment, includes ...
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JP2012096668 |
To provide a system that can determine whether an object to be identified is positioned inside the area around a vehicle.A calibration signal (S_CAL) is transmitted toward an antenna device to determine a control power (PR), a function s...
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JP2011226959 |
To provide a method for easily estimating a position and a direction of a moving body such as a forklift.In an object area with plural poles arranged in a lattice shape in a plane view, plural RFID tags having directivity to the detectio...
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JP2011205216 |
To provide a monitoring system capable of detecting objects existing within a monitoring area with higher accuracy and more accurately obtaining concrete contents of each object about objects having a radio communication medium.The monit...
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JP2011185825 |
To improve efficiency of searching operation for an article in a simple manner.A border value searching means separately changes an intensity of radiowaves of a plurality of radiowave radiation means arranged at different positions in a ...
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JP2011163886 |
To provide a detecting device and a program improving accuracy in detection of a magnetic body which does not change the position with respect to the detection device.The detection device is equipped with: three or more detecting coils t...
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JP2011163764 |
To provide a method of detecting an identification target in a region (ZO) around an antenna device.A calibration signal (S_CAL) is transmitted toward the antenna device to determine control power (PR); a function signal (S_FONC) corresp...
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JP2011158358 |
To provide a detection device capable of detecting a magnetic body, even when a magnetic material is included in an installation surface.This detection device includes a support stand 14 supporting an antenna, and provided at least on a ...
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JP2011159139 |
To provide an article search system by which a place of an article is easily known and to provide a use method thereof.There is provided a use method of an article search system which includes: an IC chip which has a memory part which st...
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JP2011128037 |
To provide a structure inspection device for detecting abnormal change of a structure such as a road.The structure inspection device has a communication means mounted on the structure of an inspection object and for performing informatio...
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JP2011089812 |
To detect a person and an object within a detection area of a mobile unit identification system using UWB radio without differentiating between tag holding and non-tag holding.A transmitter 110 transmits an Ultra Wide Band (UWB) radio pu...
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JP2011076242 |
To maintain accuracy of lost child determination when receiving success rate is significantly changed by environmental factor.A parent terminal 40 includes: a tag ID receiving section 41 for receiving signals transmitted at fixed interva...
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JP2010286264 |
To provide a means for accurately and easily specifying a processing position of a nonmagnetic object without requiring a large-scale fixture nor a precise machine tool.A magnetic marker is arranged at a predetermined position of the non...
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JP2010223759 |
To readily confirm the location of a downflow monitor plugging the inside of a pipe.The device includes the downflow monitor M which can be input into an inspection object pipe P, sent down together with a fluid 1 through the pipe, and l...
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JP2010223699 |
To provide a detection tag capable of adjusting the output value of a pulse signal generated by a magnetic substance, when large Barkhausen effect is produced in it, without using special devices, but as required.The output value of the ...
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JP2010223718 |
To provide a detection tag capable of imparting to a magnetic substance, as required, without using any special devices, the magnetic characteristics for causing large Barkhausen effect to be produced, when an alternating magnetic field ...
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JP2010215305 |
To precisely associate a management object with a storage location even when a plurality of IC tags provided at the storage location are detected.This system includes an article IC tag 10 attached to a management object component A, loca...
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JP2010210333 |
To provide an entrance/exit management system having no restriction of an antenna installation position, wherein a radio wave of a reader/writer output from an antenna does not exert an influence on an electronic apparatus carried by an ...
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JP2010107514 |
To provide a system and method for acquisition management of subject position information that utilizes radio frequency identification (RFID) for storing the positional information in position tags.Tag programmers receive position inform...
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JP2010044007 |
To provide a crack detection system of mobile objects for detecting a crack occurring in a drive state.The crack detection system 1 of mobile objects has: a crack detector 10 having a detection line 11 bonded to a location where cracks p...
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JP2010026732 |
To obtain a security tag having high versatility.The security tag has a resonant circuit which is configured by a dielectric film and a pair of electrode patterns provided at both surfaces of the dielectric film, and a resonant unit usin...
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JP2010005427 |
To provide a system and a method for accurately confirming and tracking the position of a target such as a tumor inside a living body.The system has an external excitation beacon to generate locatable signals within or close to the targe...
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JP2009294114 |
To provide an object detection system capable of acquiring detection information of the position, the state, or the like, of an object by a simple constitution that will not retain positional information.This system is constituted of one...
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JP2009288239 |
To provide an apparatus and method for grasping the state of an object, by simultaneously identifying and measuring, for each RFID tag through a receiver, the intensities of fields that are generated from RFID tags which are arranged in ...
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JP2009270885 |
To determine existence of water in a container for an inspection object by using a communication characteristic of a radio IC tag without opening/closing the container for the inspection object, and without using a method for sticking/en...
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JP2009210516 |
To provide a moving body position detecting device, moving body position detecting system, and program for reducing the increase in data quantity and preventing detection leakage.This moving body position detecting device 10 comprises a ...
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