SG194534A1 - Device and method for programming a projectile - Google Patents
Device and method for programming a projectile Download PDFInfo
- Publication number
- SG194534A1 SG194534A1 SG2013077664A SG2013077664A SG194534A1 SG 194534 A1 SG194534 A1 SG 194534A1 SG 2013077664 A SG2013077664 A SG 2013077664A SG 2013077664 A SG2013077664 A SG 2013077664A SG 194534 A1 SG194534 A1 SG 194534A1
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- SG
- Singapore
- Prior art keywords
- programming
- projectile
- coil
- muzzle
- measurement
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 238000011156 evaluation Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 238000010304 firing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000252067 Megalops atlanticus Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C11/00—Electric fuzes
- F42C11/06—Electric fuzes with time delay by electric circuitry
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C11/00—Electric fuzes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C11/00—Electric fuzes
- F42C11/06—Electric fuzes with time delay by electric circuitry
- F42C11/065—Programmable electronic delay initiators in projectiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C17/00—Fuze-setting apparatus
- F42C17/04—Fuze-setting apparatus for electric fuzes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/66—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means
- G01P3/665—Devices characterised by the determination of the time taken to traverse a fixed distance using electric or magnetic means for projectile velocity measurements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Geophysics And Detection Of Objects (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
(Figure 2)Apparatus and method for programming a projectileA measurement apparatus (10, 10') is proposed, which is included on a measurement and programming basis for a projectile (13), which detects the fields and/or signals which emerge/originate from a programming coil (27), and is electrically connected to an evaluation device (11) which itself evaluates these detected values. In special cases, these values can then be taken into account for the programming of the projectile (13).
Description
Rheinmetall Air Defence AG, Zurich
W.0C.0751.DE/DIE 19 April 2011
Apparatus and method for programming a projectile
The invention relates to an apparatus for measurement of electromagnetic fields on and/or within a programming device which, for example, is included on the muzzle of a tube weapon, in particular having a measurement apparatus on a programming device for an air burst munition (ABM), that is to say having a field test appliance on a measurement and programming basis.
The measurement apparatus can measure fields and/or signals from the programming cecil, thus making it possible to check the correct operation of the programming coil, the programming signal and the time correlation with the projectile, as well as the programming of a projectile itself. In special cases, these values can then be taken into account Ior the programming of the projectile.
For the purposes of the present description, the term a tube weapon means both guns and rocket launch tubes.
The term projectile is intended to mean all airborne vehicles which can be launched or fired from a weapon barrel, that is to say ballistic projectiles and projectiles which at least partially propel themselves.
The term ballistic projectiles means normal conventional projectiles which detonate on impact, such as projectiles which can be fuzed and/or programmed, and, for example, detonate in flight. The projectiles may be spin-stabilized and/or fin-stabilized and may, for example, be in the form of discarding sabot projectiles, primary projectiles which carry a plurality of secondary projectiles in them, or exercise projectiles with a core and casing.
In general gunnery, the muzzle velocity of a projectile is normally referred to as Vp, and is also referred as the Vy velocity. This is therefore the velocity at which a projectile launched or fired from a tube weapon moves on its trajectory relative to the weapon barrel when it emerges from the weapon barrel. The flight duration, the firing distance and the hit-point position are dependent, inter alia, on the Vy velocity. However, precise knowledge of the muzzle velocity Vp is particularly important in the context of programmable projectiles, since the time at which a programming code is transmitted toc a projectile in order to achieve the desired weapon effect depends on the muzzle velocity,
Vo. The muzzle velocity Vp alse depends on the weight and the temperature of the propellant charge.
A theoretical muzzle velocity Vp(theor.) can be determined by calculation if all the relevant data relating to the weapon, the weapon barrel and the projectile to be fired or launched is known. However, the muzzle velocity Vg differs from the theoretically calculated muzzle velocity Ve{theor.). In addition, the
Vy velocity is reduced as a ccnsequence of weapon barrel wear. Therefore, the actual muzzle velocity is preferably in each case measured on firing, in order to correct the azimuth and elevation of the weapon barrel as necessary for the target to be attacked, and/or in order to appropriately program the projectile, or at least the subsequent projectiles.
An airburst munition (ABM) is a munition type which breaks up during the flight phase without any need to strike a target object or to be in the vicinity of a target object. For this purpose, a suitable mechanism is used to fire a break-up charge within this munition and to cause it to explode. If the muzzle velocity of the ABM is known sufficiently accurately, the desired range can be determined via an indication of a time after which the break-up charge is intended to be fired after leaving the muzzle. Because of the natural scatter in the muzzle velocities of ABM, it is particularly important, for this type of munition, to determine the initial velocity at the muzzle (Vg) with sufficient accuracy.
Various apparatuses and methods are known for measurement of the actual Vy, velocity. Frequently, the measurement of the Vy; velocity 1s based on a gate principle. A Vy measurement such as this is known from
EP 0 108 973 Bl. In this case, two coils are used, which are arranged at a known distance from one another, to be precise after the exit cross section of the weapon barrel, seen in the direction of flight of the projectile. These coils and the distance between them form a measurement base path. The coils are in general arranged at least approximately concentrically with respect to the longitudinal axis of the weapon barrel, and their internal diameter is somewhat larger than the calibre of the weapon barrel. The coils are connected to current sources, thus resulting in a magnetic field in the area of each coil, and an induced voltage can be tapped off as the projectile passes through. While a projectile is flying through the area of the coils, the magnetic field is disturbed, and the voltage which can be tapped off changes as a function of the relative position of the projectile with respect to the coll. CH 691 143 AS deals with the same subject.
Therefore, if the Vy; of the individual projectile is determined at the muzzle of the gun, then, after the appropriate break-up time has been calculated, this value can be programmed into the projectile via a programming unit, which is located downstream in the direction of the projectile flight path, as a result of which the projectile 1s broken up by the break-up charge at the desired point. One such system is known,
for example, from EP 0 802 390 Al, EP 0 802 392 Al and
EP 0 802 391 Al. In this case, the projectile passes through a measurement path in the area of the muzzle, which measurement path is formed by two coils arranged one behind the other, and produces a time-dependent voltage signal in each of these coils. If the distance between the coils is known, the projectile velocity can be determined from these signals. The appropriate break-up time is calculated in a computation unit, and is programmed in the projectile via a third coil.
In order to make it possible to set the time fuzes for breaking up the projectile with the desired accuracy, it is necessary, according to the teaching of
EP 0 467 (055 Al, to transmit at least 12 bits from the transmission coil of the programming device to the receiving coll in the projectile. By way of example, in the case of a muzzle velocity of 1200 m/s, the receiving coil in the projectile passes by the transmission coil, which is attached to the weapon barrel muzzle, in a relatively short time, as a result of which only a short time is available for transmission of the information from the transmission coil to the receiving coil. At the same time, the transmission time window must be chosen such that the projectile is located within the transmission coil at that time.
The invention 1s based on the object of providing an apparatus which can be used for accurate programming while a shot is being fired.
The object is achieved by the features of Patent Claim 1. Advantageous refinements are reflected in the dependent claims. A method is specified by the features of Patent Claim 9.
The invention is based on the idea of checking the correct operation of the programming coil, the programming signal and the time correlaticn with the projectile as well as the programming of a projectile itself. This can be done by detection of the fields and/or signals of the programming coil. This information can then be taken into account in the programming. The measurement apparatus according to the invention furthermore makes it possible to also detect disturbance fields from further components of the tube weapon, as well as disturbance fields which act on the tube weapon from the outside. Furthermore, it is also possible to check for active incident radiation from, for example, Natel, radar, active jamming devices and switching jammers. These are further influences which can now be taken into account during programming. Admittedly, test devices which can detect fields and signals of a programming coil are already known, for example by the term > base test appliance <, but these are restricted to laboratory environments, that is to say they do not measure the situation of a real shot, and the possible correction associated therewith.
In order to implement the idea within the scope of an existing programming device, for example in the area of the muzzle of a tube weapon and preferably even on the programming coil for the munition itself, an additional measurement apparatus is provided, that is independent of the programming coil, can detect the signals which are present in the area of the programming coil, and in particular the signals emitted by the programming coil, and can pass these to a measurement evaluation device.
The system is designed as a purely passive system.
In the simplest case, this measurement apparatus may consist of a coil having cne or more turns around the muzzle opening of the tube weapon. The coil is functionally connected to a fundamentally known signal recelving and signal processing device, for example via a wire connection.
The cecil is preferably positioned such that, on the one hand, it does not cover the unobstructed opening of the barrel muzzle, while nevertheless at the same time makes it possible to detect sufficiently well the fields which emerge/originate from the programming coil with a low field strength. For this purpose, they must be positioned outside the metallic screening of the programming coil.
The number of coil turns may be one or more. Since the number of turns influences the response time of the coll, the turns are chosen on the basis of the flank gradient of the signal to be detected. The fastest response behaviour 1s achieved with a single coil winding. Better signal sensitivities are achieved with a plurality of windings - the best solution should in each case be chosen depending on the signal strength and the gradient. The windings may either be in the form of wire in a surrounding structure or, alternatively and particularly preferably, may be implemented in the form of a printed circuit board ("print").
An electrically non-conductive material should be provided for the material surrounding the coil, for example non-conductive plastics cr epoxy materials. At the same time, it is advantageous for this material to have low density, which therefore means only a small additional mass in the area of the muzzle since, as is known, additional masses in the muzzle area influence the dynamic and static behaviour of the tube weapon.
The measurement apparatus can be attached to the programming coil assembly via an adhesive joint, a push
- 7 = joint or else as a printed embodiment on a surface. The positioning can be considered in many ways.
This results, inter alia, in the further advantages of a good signal evaluation capability: bit patterns and possible interruptions, signal strengths, attenuations and single-bit tests, that is to say whether correct bits have been set. Furthermore, the time window/time instant of programming (within 20 ps) can be tested, and the programming basis can be tested during actual firing. An independent functional and quality test of the programming base can also be carried out. This is used as a referee tool for failure (to break up in the intended target region): >caused in the programming, or in the munition?< and the documentation of the base characteristics during acceptance firing.
A measurement apparatus 1s proposed which is included on a measurement and programming basis for the programming of a projectiie (13), which can detect the fields and/or signals which emerge/originate from a programming coil. These "detected" values are evaluated in an evaluation device, and can then also be made available for programming the projectile. This therefore makes it possible not only tc make decisions on the method of operation of the programming coil as such, but also to implement corrections, when this is electronically possible.
The invention will be explained in more detail with reference to one exemplary embodiment and with a drawing, in which:
Figure 1 shows a longitudinal section through a measurement and programming device according to the prior art,
Figure 2 shows a sectional illustration of a first embodiment of a measurement apparatus for measurement of the field and/or of the signals of at least the «coil of the programming device,
Figure 3 shows a sectional illustration of a second embodiment,
Figure 4 shows a sectional illustration e¢f a third embodiment, and
Figure 5 shows a sectional illustration of a further embodiment.
Figure 1 shows a supporting tube 20, which is attached according to the prior art to the muzzle of a gun barrel 13 and consists of three parts 21, 22, 23.
Annular coils 24, 25 for the measurement of the projectile velocity are arranged between the first part 21 and the second and/or third parts 22, 23. A transmission coil 27, which is held in a coil former 26, 1s attached to the third part 23 - also referred to as the programming part. Lines 28, 29 are provided for feeding the annular coils. Soft-iron bars 30 are arranged on the circumference of the supporting tube 20, for screening against magnetic fields which interfere with the measurement. The projectile 18 has a receiving coil 31, which is connected to a time fuse 34 wvia a filter 32 and a counter 33. When the projectile 18 passes through the two annular coils 24, 25, a pulse is produced at short successive intervals in each annular ceil. These pulses are fed to an evaluation circuit (not illustrated), in which the projectile velocity is calculated from the time interval between the pulses and the distance a between the annular coils 24, 25. The projectile velocity is used tc calculate a break-up time, which is transmitted inductively to the receiving coil 31 in a suitable form while the projectile 18 is passing through the transmission coil 27, in order to set the counter 32 etc.
Figure 2 describes a first embodiment of the apparatus according to the invention. In this case, this section drawing represents the muzzle 11 of the tube weapon, which 1s formed by a component 1 which extends in a circular form around the barrel centre axis 2. At 10 least one winding 5 of the measurement apparatus 10 is incorporated within an electrically non-conductive attachment ring 4. The ring 4 is preferably adhesively bonded to the end surface of the tube-weapon muzzle, and in the process isolates the winding 5 from the electrically conductive «closure cap 3 on the tube weapon.
Figure 3 describes a second embodiment of the apparatus 10' according to the invention. In this case, this section drawing represents the muzzle 11 of the tube weapon, which 1s formed by the component 1 which extends in a circular shape around the barrel centre axils 2. At least one winding 5 of the measurement apparatus 10 is incorporated within an electrically non-conductive attachment ring 12. The ring 12 is equipped with an enlarged area, in order to improve the adhesive joint to the component 1 and the closure cap 3 on the tube weapon.
Figure 4 describes a third embodiment of the apparatus according to the invention. In this case, the attachment ring 14 is in the form of a cap which can be placed over the muzzle 10 of the tube weapon. This improves the mechanical retention of the measurement apparatus 5 according to the invention on the tube weapon further in comparison to the previous embodiments.
Figure 5 describes a fourth, particularly preferred, embodiment of the apparatus according to the invention.
In this case, a conductor track 5' in the form of a circular coil winding is provided as a printed circuit within the attachment ring 15, with electrical connecting means 6 being passed out of the attachment ring 15, and being operatively connected to an evaluation device 16.
The additional measurement apparatus 10, which is preferably included in the area of the programming coil 27, 1s used to detect the emitted signals from the transmissicn or programming coil 27, and to pass them to the evaluation device 16. The result or results can then also be included in the programming of the projectile 13 (correction). In any case, information relating to the method of operation of the programming coll 27 can be derived.
It is self-evident that this principle may also be used for testing the measurement coils 24, 25, although the design complexity is undoubtedly greater here than that for testing the programming coil 27.
Claims (10)
1. Apparatus for programming a programmable projectile (13) having at least one programming coil (27), characterized in that a measurement apparatus (10, 10'} is included, which detects the fields and/or signals which emerge/originate from the programming coil (27) and is electrically connected to an evaluation device (11) which evaluates these detected values.
2. Apparatus according to Claim 1, characterized in that the detected values «can also be made available as correction values for the programming of the projectile (13).
3. Apparatus according to Claim 1 or 2, characterized in that the measurement apparatus (10) consists of a coll (5) with one or more turns around the muzzle opening (11) of the tube weapon.
4. Apparatus according to Claim 1 cor 2, characterized in that, as a conducter track (5') in the form of a circuit coil winding, the measurement apparatus (10') is in the form of a printed circuit.
5. Apparatus according to one of Claims 1 to 4, characterized in that the measurement apparatus (10, 10") is preferably located such that, on the one hand, it dces not cover the unobstructed opening of the barrel muzzle.
6. Apparatus according to one of Claims 1 to 5, characterized in that the measurement apparatus (10) is included in an attachment ring (4, 12, 14, 15) which can preferably be adhesively bonded to the end surface of the tube-weapon muzzle.
7. Apparatus accerding to Claim 6, characterized in that the attachment ring (12) is equipped with an enlarged area.
8. Apparatus according to Claim 6, characterized in that the attachment ring (14, 15) is in the form of a cap.
9. Method for programming a programmable projectile (13) having at least one programming coil (27), characterized in that a measurement apparatus (10, 10") detects fields and/or signals which emerge/originate from the programming coil (27) and then evaluates them in an evaluation device (11).
10. Apparatus according to Claim 9, characterized in that the values can also be made available as correction values for the programming of the projectile (13).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011018248A DE102011018248B3 (en) | 2011-04-19 | 2011-04-19 | Device and method for programming a projectile |
PCT/EP2012/055531 WO2012143218A1 (en) | 2011-04-19 | 2012-03-28 | Device and method for programming a projectile |
Publications (1)
Publication Number | Publication Date |
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SG194534A1 true SG194534A1 (en) | 2013-12-30 |
Family
ID=45804966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SG2013077664A SG194534A1 (en) | 2011-04-19 | 2012-03-28 | Device and method for programming a projectile |
Country Status (16)
Country | Link |
---|---|
US (1) | US20140060298A1 (en) |
EP (1) | EP2699871B1 (en) |
JP (1) | JP2014515817A (en) |
KR (1) | KR20140045937A (en) |
CN (1) | CN103562671A (en) |
BR (1) | BR112013026863A2 (en) |
CA (1) | CA2833460A1 (en) |
DE (1) | DE102011018248B3 (en) |
DK (1) | DK2699871T3 (en) |
ES (1) | ES2534443T3 (en) |
RU (1) | RU2013151167A (en) |
SG (1) | SG194534A1 (en) |
TW (1) | TWI458935B (en) |
UA (1) | UA108303C2 (en) |
WO (1) | WO2012143218A1 (en) |
ZA (1) | ZA201308579B (en) |
Families Citing this family (5)
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US10514234B2 (en) * | 2013-03-27 | 2019-12-24 | Nostromo Holdings, Llc | Method and apparatus for improving the aim of a weapon station, firing a point-detonating or an air-burst projectile |
US11933585B2 (en) | 2013-03-27 | 2024-03-19 | Nostromo Holdings, Llc | Method and apparatus for improving the aim of a weapon station, firing a point-detonating or an air-burst projectile |
DE102013108822C5 (en) | 2013-08-14 | 2017-08-10 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Weapon and projectile with RFID system |
JP6190516B1 (en) * | 2016-12-01 | 2017-08-30 | 株式会社日本製鋼所 | Flying speed measuring device and flying speed measuring system |
KR102084670B1 (en) | 2019-05-23 | 2020-03-04 | 주식회사 센서피아 | Air burst projectile bomb and bursting signal transfer device for air burst projectile bomb |
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DE102010006529B4 (en) * | 2010-02-01 | 2013-12-12 | Rheinmetall Air Defence Ag | Method and device for transmitting energy to a projectile |
SG184603A1 (en) * | 2011-04-02 | 2012-10-30 | Advanced Material Engineering Pte Ltd | Electro-mechanical fuze for a projectile |
-
2011
- 2011-04-19 DE DE102011018248A patent/DE102011018248B3/en not_active Expired - Fee Related
-
2012
- 2012-03-28 RU RU2013151167/03A patent/RU2013151167A/en unknown
- 2012-03-28 CN CN201280026006.5A patent/CN103562671A/en active Pending
- 2012-03-28 CA CA2833460A patent/CA2833460A1/en not_active Abandoned
- 2012-03-28 EP EP12713065.6A patent/EP2699871B1/en not_active Not-in-force
- 2012-03-28 DK DK12713065T patent/DK2699871T3/en active
- 2012-03-28 JP JP2014505564A patent/JP2014515817A/en active Pending
- 2012-03-28 ES ES12713065.6T patent/ES2534443T3/en active Active
- 2012-03-28 SG SG2013077664A patent/SG194534A1/en unknown
- 2012-03-28 KR KR1020137030461A patent/KR20140045937A/en not_active Application Discontinuation
- 2012-03-28 BR BR112013026863A patent/BR112013026863A2/en not_active IP Right Cessation
- 2012-03-28 UA UAA201312921A patent/UA108303C2/en unknown
- 2012-03-28 WO PCT/EP2012/055531 patent/WO2012143218A1/en active Application Filing
- 2012-04-18 TW TW101113839A patent/TWI458935B/en not_active IP Right Cessation
-
2013
- 2013-10-21 US US14/059,023 patent/US20140060298A1/en not_active Abandoned
- 2013-11-14 ZA ZA2013/08579A patent/ZA201308579B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN103562671A (en) | 2014-02-05 |
DE102011018248B3 (en) | 2012-03-29 |
US20140060298A1 (en) | 2014-03-06 |
RU2013151167A (en) | 2015-05-27 |
DK2699871T3 (en) | 2015-04-27 |
WO2012143218A1 (en) | 2012-10-26 |
ES2534443T3 (en) | 2015-04-23 |
TW201303255A (en) | 2013-01-16 |
EP2699871B1 (en) | 2015-01-28 |
JP2014515817A (en) | 2014-07-03 |
KR20140045937A (en) | 2014-04-17 |
BR112013026863A2 (en) | 2017-10-17 |
ZA201308579B (en) | 2014-07-30 |
UA108303C2 (en) | 2015-04-10 |
TWI458935B (en) | 2014-11-01 |
EP2699871A1 (en) | 2014-02-26 |
CA2833460A1 (en) | 2012-10-26 |
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