CN1278352A - Coin acceptor - Google Patents
Coin acceptor Download PDFInfo
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- CN1278352A CN1278352A CN98810654A CN98810654A CN1278352A CN 1278352 A CN1278352 A CN 1278352A CN 98810654 A CN98810654 A CN 98810654A CN 98810654 A CN98810654 A CN 98810654A CN 1278352 A CN1278352 A CN 1278352A
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- coin
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
- G07D5/08—Testing the magnetic or electric properties
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
- G07D5/02—Testing the dimensions, e.g. thickness, diameter; Testing the deformation
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- General Physics & Mathematics (AREA)
- Testing Of Coins (AREA)
Abstract
A coin acceptor includes sensor coil units (C1, C2, C3, C4) small enough to sense respective different regions of the face of a coin (8) as it moves past them, so as to produce time varying sensor outputs (x1(a), x2(a), x2(f), x3(a), x4(a)) as a function of the different regions. The sensor outputs are sampled repetitively. A microcontroller (11) monitors the sample values so as to determine when the value of at least one of the sensor outputs adopts a predetermined criterion, e.g. reaching a peak value and in response thereto, compares the value of the sensor output that includes the peak value with corresponding values stored in an EEPROM (12) to determine the acceptability of the coin.
Description
Background of invention
The present invention relates to a kind of Coin acceptor, particularly, the present invention is applicable to, but is not limited to the receiver of multiple coin, the coin of different Currency Types for confirmation and denomination.
Invention field
The Coin acceptor of differentiating different classes of coin is well-known, and at our BrP GB-A-2, has set forth an example in 169,429.This receiver comprises a Coin sideway, and coin passes a monitor station along this slideway, and at this, coil carries out a series of inductance measurement to coin, shows the coin parameter signal that detects coin material and tenor so that produce.With the coin parameter signal digitizing so that digitized coin parameter data are provided, then with the coin data of above-mentioned data and storage relatively by micro controller, on the contrary determine to detect coin qualification or.If confirm that coin is qualified, micro controller is then handled the reception gate, and coin is fallen to receiving cable; Otherwise gate then keeps non-operating state, and coin falls to rejecting passage.
The coin monitor station comprises some different coils, to above-mentioned coil can different frequency energising, and its specification can have nothing in common with each other, and when passing monitor station with convenient coin, can only form independent inductive coupling in the one side or in its both sides with the coin in the test.The coil of going forward to adopt produces eddy current with respect to the big major part that is enough to make inductive coupling spread all over the coin surface at least of its basal area of coin, its result, the parameter that detects constitutes the mean value of the some different parameters of coin, as its tenor, and the mean value of thickness and picture on surface.
By the average effect that produces than the large sensor coil in some cases some drawbacks will appear.For example, for comprising the different materials district, as by the coin of more than one metal or metal alloy new systems and be surrounded by some classification coin (hereinafter being referred to as " thermometal " coin) that the ring district of second kind of different-alloy constitutes, circulation day by day by the first alloy center district and its periphery.Above-mentioned zones of different presents different inductance characteristics to the cell winding of receiver; Yet the larger area coil is easy to the effect of average two metal areas, and its result causes unsafty coin and pseudo-goods with other classification, as the packing ring that has a center pit is discerned mutually.
At U.S. Pat-A-4, another embodiment of narration among 955,497 (Tamura, the Electric Works Ltd), in this example, to along slideway coil electricity in line so that measure detect in the different qualities of coin.By means of the signal peak that magnetic test coil produces, measure the characteristic and the coin thickness of two kinds of different materials of coin; And pass through to measure coin diameter along the crossover point of the output valve of Coin sideway two coils at interval.Above-mentioned peak value and intersection point are compared with the genuine note data of storage.The detection of coin of having measured the required coil feature limits in line of diameter, and the difficulty that causes bimetallic coin to detect.
WO-A-93/22747 (Mars Inc) discloses a kind of Coin acceptor that is used for bimetallic coin, this receiver adopt its separately width be significantly less than two Magnetic Sensors of bimetallic coin diameter, two sensors is arranged essentially parallel to the Coin sideway configuration.The sensor is unified into bridge diagram, and utilizes the difference between the sensor output value to differentiate bimetallic coin and forge device.
Summary of the invention
Apparent according to the present invention, by means of adopting along the transversely arranged small coil of Coin sideway and monitoring its output valve, then might preset criterion by in sampling (Sample) the value characteristic of one of sensor output at least, seeking at least one, more accurately clearly extract the details of the related characteristics of coin, then sensor output data and corresponding storage data are compared, so that determine the qualification of coin.
More specifically, the invention provides a kind of Coin acceptor, this receiver comprises: a Coin sideway, some cell windings, sampling (Sample) device and control device, when coin when slideway moves, the sensor coil detects coin, sensor becomes a row configuration along the Coin sideway horizontal expansion, detects the zone that the coin end face has nothing in common with each other when passing sensor with convenient coin, and produces respectively the sensor output value that changes at any time as the zones of different function; During coin passed sensor, above-mentioned sampler was taken a sample sensor output value repeatedly; Above-mentioned control device is monitored sampling value in proper order, meets the moment of a predetermined criteria so that determine one of sensor output value at least, and thereupon again with the data of the output of the sensor of sampling and corresponding storage data relatively, determines the qualification of coin.。
This biographies sensor coil can comprise along the coil block of Coin sideway horizontal expansion being aligned or multi-thread configuration.They can be in the Coin sideway both sides, or only in a side.
Above-mentioned coil block is faced the area of coin preferably less than 72mm
2
The sensor coil device can couple with oscillatory circuit respectively, and the sampler operation, and when coin passed this coil device, with the oscillating characteristic parameter sampling of circuit, as frequency or amplitude, or both had both at the same time.
The configuration of above-mentioned control device can be selected the set of the sampling value of the sensor output that occurs when one of output valve conforms to predetermined criteria, so that will select sampling value and storage data comparison.
In other words, the configuration of control device can be determined moment that sensor output value conforms to predetermined criteria separately respectively and with its value and storage data relatively.
Predetermined criteria can comprise a catastrophe point of sensor output value, a main or local maximum or a minimum value of the sensor output value that occurs during passing through as coin.Predetermined criteria also can appear at least one sampling value that at least one sampling value that one of sensor sends and another sensor send and form the characteristic moment of a predetermined value.The family curve of above-mentioned value can comprise the crossover point of sampling value with the corresponding sampling value of sending from another sensor of the order of sending from one of sensor; It perhaps can be the sampling value relative change rate's that sends from the sensor function.
The present invention also comprises a kind of method of discerning coin, this method comprises the coin that detection is passed through along the slideway of the some cell windings that are provided with space configuration, with the box lunch its pass along the Coin sideway horizontal expansion become one row coil the time, detect the zone that has nothing in common with each other of coin end face, so that produce the sensor output value that changes at any time, respectively as the function of zones of different; During coin passes sensor, sensor output value is taken a sample repeatedly; Order is monitored this sampling value, so that determine that one of sensor output value meets the moment of presetting criterion at least, again with the sensor output data of sampling, with corresponding storage data comparison, determines the qualification of this coin thereupon.
Summary of drawings
For understanding the present invention more fully, existing with reference to the accompanying drawings with way of illustration detailed description embodiments of the invention.Accompanying drawing comprises:
Fig. 1 is the sketch of facing of Coin acceptor first embodiment of the present invention;
Fig. 2 is the electrical schematic diagram of Coin acceptor shown in Figure 1;
Fig. 3 is the Coin acceptor partial sectional view that dissects along Figure 1A-A ' line;
Fig. 4 a is the local amplification view of one of coil shown in Figure 3;
Fig. 4 b is the front end face figure of coil shown in Fig. 4 a;
Fig. 5 is the synoptic diagram of coil shown in Figure 1 and coil magnet oscillator circuit and interface circuit;
Fig. 6 shows when coin passes cell winding and moves, and coin parameter signal is time history plot how;
Fig. 7 is when coin passes coil, utilizes micro controller to finish the block flow diagram that coin ginseng sampling number value is carried out the handling procedure of sequenced collection;
Fig. 8 is a procedure chart of determining coin parameter signal X1 (a) peak value occurrence rate with micro controller;
Fig. 9 is a procedure chart of determining the catastrophe point occurrence rate of coin parameter signal X1 (a) and X2 (a) value with micro controller;
Figure 10 is the sketch of facing of Coin acceptor second embodiment of the present invention;
Figure 11 is the electrical schematic diagram of Coin acceptor shown in Figure 10;
Figure 12 is coil shown in Figure 10 and coil magnet oscillator circuit and interface circuit sketch;
Figure 13 is a coin when passing cell winding shown in Figure 10 operation, and coin parameter signal is time history plot how;
Figure 14 is the partial enlarged drawing of curve shown in Figure 13; And
Figure 15 is a coin when passing Figure 10 monitor station, carries out the block flow diagram of treatment process with micro controller;
Detailed Description Of The Invention
First embodiment
First embodiment of Coin acceptor of the present invention now will be described in detail in detail, this Coin acceptor comprises the receiver of more than one kind of coin, can confirm to comprise the some different classes of coin of bimetallic coin, as new complete Euro coin and the new complete coin of Britain that comprises new thermometal ￡ 2.00 coins.
The actual disposition of Coin acceptor is shown in Fig. 1 summary.This Coin acceptor comprises that one has the housing 1 of Coin sideway 2, and the coin that detect 3 passes a coin monitor station 4 forward along slideway 2 edges from entering the mouth, and falls then to gate 5.When coin passes monitor station 4, each piece coin is detected.If the testing result indication is a genuine note, 5 unlatchings of gate, coin can be delivered to receiving cable 6, otherwise but, gate then remains closed, and coin then is biased to rejects passage 7.Coin track with dashed lines 9 summarys that coin 8 passes receiver show.
Coin monitor station 4 comprises four coin magnetic test coil device C1a that dot, b, and C2, C3a, b and C4 are to its energising, so that produce inductive coupling with coin.In addition, be provided with a coil device CC in the receiving cable 6 below gate 5,, in fact whether entered receiving cable 6 so that detection has been defined as qualified coin as an affirmation sensor.
By main oscillations shown in Figure 2 and interface circuit 10, with different frequency to coil electricity.The coin of coil device in test produces eddy current.Different inductive coupling between three coils and the coin makes coin present the characteristic of obvious uniqueness.Main oscillations and interface circuit 10 produce four corresponding coin parameter signal X1, X2, and X3, X4, as coin and coil device C1, C2, the function of the different induction coupling between C3 and the C4.Coil device CC is produced corresponding signal Xc.
For determining the authenticity of coin, by four coin parameter signal X1 that coin in the test produces, X2, X3 and X4 deliver to the micro controller 11 that couples with the electric memory storage that can wipe programmable read-only memory EEPROM12 form.Micro controller 11 will be handled the coin parameter signal that coin sends in the test according to mode described in detail below, and the respective stored value of preserving among its result and the EEPROM12 relatively.Storing value is preserved according to the window with upper and lower ultimate value.Therefore, specify in the corresponding window ranges of classification genuine note, show that then this coin is qualified, otherwise reject if the data of handling belong to.If acceptance(check) provides a signal to deliver to the driving circuit 14 of handling gate 5 shown in Figure 1, so that coin is delivered to receiving cable 6 on the circuit 13.Otherwise 5 at gate is not opened, and coin is delivered to and rejected passage 7.
The data that micro controller 11 will have been handled be suitable for different classes of coin some not on the same group the action pane data relatively so that Coin acceptor can receive or reject the coin more than a piece of designated currency group.If coin is qualified, adopt one to confirm whether the examination pickup wire coil apparatus CC detection coin of position passes through along receiving cable 6, and install 10 corresponding data Xc delivered to micro controller 11, on circuit 15, provide an indication to confirm as the output valve of the amount of money of paying of qualified coin subsequently.
Now in detail the configuration of cell winding will be described in detail more.Referring to Fig. 1, Coin acceptor is a hinged coin door 16 on the axle 17 of its housing 1 in the usual way again.Show that as Fig. 3 is detailed Coin sideway 2 is located between the wall 19 of the inwall 18 of door 16 and housing 1.Slideway 2 comprises the obliquity prominence platform 20 on the door 16, and coin moves forward along downward boss, periphery, passes pickup wire coil apparatus C1, C2, C3 and C4.Show coin 8 on the boss 20 of the slideway 2 of Fig. 3.Though in fact coin will lean at one of wall 18,19, coin is to be in stand up position shown in simplifying.As be known in the art, in Fig. 1 and 3, show gate 16 is to be offset to make-position by spring; If but the coin jam, it also can outwards rotate from housing 1, rejects passage 7 so that unclamp nipped coin and it is fallen into.
Be the operating characteristic that illustrates that this receiver improves, coin 8 shown in Figure 1 is the illustrations as a bimetallic coin; And coin comprises new ￡ 2.00 coins in this example.This coin comprises the first central core district 21 of cupronickel, and its outside is around distinguishing referred to herein as second ring of bell metal or encircling 22, and bronze contains Cu76%, Ni4% and Zn20%.But, hereinafter will be apparent, the present invention is not limited to detect bimetallic coin.
With reference to Fig. 3, coil device C1a, b comprise that one is installed in the inboard of housing 1 wall 19 and a pair of coil block C1a on door 16 the wall 18, C1b.This coil block C1a, the configuration of C1b forms inductive coupling with local bronze ring 22 with the bimetallic coin 8 that detects, promptly with the center 21 no tangible inductive coupling of coin cupronickel.
Show that as Fig. 4 is detailed each coil block C1a, C1b comprise that one is the tubular bobbin 23 of plastics substantially, form coil winding 24 on it.Bobbin 23 pushes away the what is called half groove core 25 that the ferrite sintered body material of packing into is made.Half groove core 25 comprises that one has the tubular central head 26 of through hole and concentric periphery garden tube support lug 27; Through hole on the magnetic head 26, purpose are to reduce used Ferrite Material.
The another program that substitutes bobbin is can be around the winding of a bobbin winder bracket winding around 24 not shown in the figures, and with the winding heating, softening its insulating material; Thereby during cooling, form a coil from supporting type, then it is unloaded and push away the half groove core 25 of packing into from bobbin winder bracket.
The support lug 27 of half groove core 25 pushes away a corresponding grooves on the wall of packing into; Therefore, the flange 27 of assembly C1a pushes away the tubular groove 28 of the wall 19 of packing into, and the flange 27 of assembly C1b pushes away the corresponding recesses 29 of the wall 18 of packing into.In this example, the winding outside diameter d of coil 24
1Be 7.3mm.The inner diameter d that has the coil 24 of bobbin 23
2Be 2.78mm, the aperture of passing magnetic head 26 is 2mm.In this example, coil block C1a, the end face 30 of b is at a distance of 6.24mm.The axial length of coil 24 is 2.78mm.The outside diameter d of half groove core 25
3Be 9mm, therefore, in this example, end face 30 area A of each coil device, promptly the face area of coin is 63.62mm in detect
2Assembly C1a connects on winding 24 electrical equipment of b.As Fig. 3 finding, be provided with the coil block C1a of arranged coaxial coil 24, b is configured in the opposite side that detects coin 8.
Well-known in the prior art of magnet coil design, the magnetic field of common solenoid coil axis along the line is concentrated.Therefore, with regard to each coil block C1a, b, magnetic field mainly concentrates in half groove core, 25 ferrite heads 26; And except that magnetic flux passes end face 30 districts that perimeter material returns magnetic head 26, form around the loop of coil around the main outer ferrite flange 27 that encloses of the magnetic flux of coil.Therefore, largely, assembly C1a, b are confined to pass the coin zone between the magnetic head 26 for the sensitivity of walking coin.Assembly C1a, b is near Coin sideway 2 location, and the size d of coil
3Should make the inductive coupling between coin and the coil only limit to second outskirt 22 of coin 8 substantially, and not have tangible coupling with first inner region 21.As Fig. 3 finding, half groove core 25 extends under Coin sideway 20, so that the configuration of magnetic core 26 is aimed at the outer shroud 22 of coin 8.
Now with regard to coil device C2, C3 and C4 and opinion, they are by the coil block C2 identical with assembly C1a shown in Figure 4, C3 and C4 form.Coil device C1-C4 in a row installs with respect to Coin sideway 2 horizontal expansions along line 31 shown in Figure 1.Though straight line 31 is that quadrature extends with slideway 2 in this example, can adopt with respect to the Coin sideway lateral arrangement, and also more general, this is also nonessential with the coil device configuration in line.Confirmed that according to the present invention as coil C1a, the area A of b is less than 72mm owing to the coil block that makes towards coin
2, can improve recognition effect, this will allow to detect the coin zone of different induction characteristic.Generally speaking, each coil C may not be an annular.In fact square or square coil can have some advantages.The horizontally-arranged sensor preferably includes at least three coil devices.
With reference to Fig. 3, coil device C2 is installed in coil device C1a, b top, when passing monitor station 4 with convenient coin and the string of coin intersect.Will be apparent, when coin rolls when passing coil device C2, with at first forming inductive coupling with the outskirt 22 of coin, then with inner region 21 inductive coupling, and then with outskirt 22 inductive coupling.Coil device C2 comprises an independent coil block, so coil device 22 only detects the characteristic of coin from a side.
Coil device C3a, b comprise according to coil block C1a, the b same way as is installed in a pair of coil block C3a of Coin sideway opposite side, C3b.Coil device C3a, b are installed in the top of device C2, and therefore test is sensitive to coin in the position of its different strings.
Coil device C4 comprises being installed in and being higher than coil device C3a as shown in Figure 4, an independent coil of b top position.
Obviously, because when coin passes coil, coil device will be made induction to the different separately zone of the coin that detects, whether the output valve that produces from coil device C1-C4 will depend on and comprise its diameter, material behavior, thickness, be the coin characteristic of bimetallic coin and some other factorses.
The coupling method of Fig. 5 illustration coil device and coil main oscillations shown in Figure 1 and interface circuit 10.With regard to coil device C1, coil block C1, C1b are series connection, coexist in the backfeed loop of inverting amplifier A1 with capacitor C one.Therefore, circuit is as an oscillator, and its output valve comprises and depends on coil block C1a, the amplitude of C1b inductance performance and frequency.When coin passes coil block C1a, in the time of between the C1b, inductive coupling occurs between coin and coil block, its result changes the inductance coefficent (inductance) in the amplifier feedback circuit, and this will change the amplitude and the frequency of oscillator according to the transition principle thereupon.
With regard to coil device C1, adopt envelope comparator E1 test amplitude, and the envelope amplitude is by means of an analog-digital converter D1, when coin passes coil block C1a, in the time of between the C1b, sampling when passing coil device C1 with convenient coin, provides a series of order digitizing sampling value X1 (a) successively.
Coil device C2 inserts the backfeed loop of inverting amplifier A2, and produces the coin parameter signal X2 (a) of corresponding digitalization by means of envelope comparator E2 and analog-digital converter D2.
In addition, when coin passes coil device C2, detect the frequency departure of oscillator A2.One frequency detector F detects the instantaneous frequency of oscillator A2, adopts analog-digital converter D2 ', output valve is taken a sample and digitizing successively, so that coin parameter output signal X2 (f) is provided.
Coil device C3a, b insert in the backfeed loop of inverting amplifier A3, its coil block C3a, C3b series connection.One envelope comparator E3 and analog-digital converter D3 produce and comprise that working as coin passes coil block C3a, the digitizing parameter signal output valve X3 (a) of the digital sampling value of a series of amplitude excursions that occur in the time of between the C3b.
Coil device C4 inserts in the feedback circuit of amplifier A4, and comprises that comparator E4 and analog-digital converter D4 together produce amplitude excursion signal X4 (a).
Although with the illustration is that purpose shows each A/D (analog digital) converter D1-D4; Yet apparent, the output of pierce circuit may be multiplexed into an independent A/D converter, so that save the expense of circuit.
Fig. 6 shows when coin passes coin monitor station 4, the time dependent mode of coin parameter signal X.Obviously, the shape of each curve shown in Figure 6 depends on the characteristic that detects coin, and these curve signs " feature " separately of coin classification.The discharge of passing the coin of cell winding C1-C4 causes amplitude generally to reduce; But A/D converter D1-D4 produces a conversion of signals, thereby forms curve shown in Figure 6.
The set (At) of the sampling value that analog-digital converter D1-D4 shown in Figure 5 produces contains the time interval and is the sequential signal group who produces during the order commutation pulse of Dt.Therefore, the signal set At that is got at time t is as follows.
At＝{Xt1(a)+Xt2(a)+Xt2(f)+Xt3(a)+Xt4(a)}?????????(1)
Though each rendezvous value that Fig. 6 occurs when being illustrated in time t simultaneously is whole, each the sampling value X that in fact forms set can spread all over qualification during measure, will be significantly shorter than Dt during this period.
As shown in Figure 2, micro controller 11 receives the successive value of the coin parameter signal X that forms sequenced collection At.As shown in Figure 7, micro controller 11 is combined into sequential signal group Ak → Ak+n the operation working storage 32 of n sequenced collection value.
In operation S1, handle the final collective data in the working storage, so that the moment that definite value of one of coin parameter signal X at least conforms to predetermined criteria, for example moment of sampling value peak value appearance; Perhaps the corresponding signal value sent of the signal value that sends from one of sensor and another sensor forms the characteristic moment of a predetermined value.The family curve of above-mentioned value can by or reach or the crossover point that surpasses the curve of extreme value is formed; Hereinafter will more elaborate this.The data acquisition A that comprises predetermined criteria stores in operation S2.
Then at operation S3, with each coin parameter data value X1 (a), X2 (a), X2 (f), X3 (a) and X4 (a) can wipe storing value comparison corresponding among the programmable read-only memory EERPOM12 (Fig. 1) with electricity.Storing value is according to the window W=W1a that the high-low limit value is arranged respectively, W2a, and W2f, W3a, W4a preserves, so that hold the fine difference of coin and coin.In fact, in EEPROM12, storing the coin window W of a series of different settings that meet different coin classifications, and in operation S3, the result of operation S2 and all storage setting values are being compared, so that determine whether coin is qualified Currency Type.
If determine that coin is qualified,,, perhaps indicate coin to reject so that output valve 13,15 shown in Figure 2 is provided in the output valve that operation S4 provides an indication coin classification and qualification thereof.
In operation S1, the method that can detect coin parameter signal X1 (a) peak value describes in detail with reference to Fig. 8.This flow process is initial with operation S1.10.In operation S1.11, setup parameter P equals zero.In operation S1.12, from the data group Ak of three orders, selected coin parameter signal X1 (a) one by one in (wherein k=p-1, p and p+1).
In operation S1.13, mutually relatively with three sequence valve X1 (a).If intermediate value is greater than the value of front and the value of back, this will show and occur peak value.Therefore to check following inequality
x1(a)p-1＜x1(a)p＞x1(a)p+1？?????????????????(2)
If test is correct, particular value X1 (a) p shows it is peak value.If test inequality (2) is incorrect, parameter p increases in operation S1.14, and repeats above-mentioned technology, so that expansion spreads all over the successive value of data group, to attempt finding peak value in X1 (a).
When peaking, consider the k=p particular value, will from working storage, take out total data group Ak.The data group of coin parameter signal that Here it is appears among the peak value X1 (a).
In operation S2.10, the data group that takes out will be kept in, and, in operation S3.10, each coin parameter signal of from the memory data signal set, sending, i.e. X1 (a), X2 (a), X2 (f), X3 (a) and X4 (a) respectively with EEPROM12 in the corresponding window stored compare, determine that whether coin is the coin of the receiver particular category that will receive.As previously mentioned, can repeat above-mentioned operation for the some different classes of coin that in EEPROM, has the associated storage window.
Fig. 9 shows and determines to occur among curve X1 shown in Figure 6 (a) and the X2 (a) the crossover program in the moment.When crossover occurring, the window data that the data group relevant with the crossover appearance is used for storing with EEPROM12 compares.
In operation S1.20, this program begins, and setup parameter p is zero in operation S1.21.From working storage 31, take out signal value X1 (a) and X2 (a) then, be used for two continuous data group Ak, by means of parameter p, i.e. k=p ﹠amp; P+1 selectes manifold.
Then,, the data value of being got is compared by following inequality, whether occurred crossover so that determine the data of having got at operation S1.23.
X1 (a) p＜X2 (a) p and X1 (a) p+1＞X2 (a) p+ 1
Or
X1 (a) p＞X2 (a) p and X1 (a) p+1＜X2 (a) p+1 (3)
Obviously, whether mutually above-mentioned test determines curve X1 shown in Figure 6 (2) and X2 (a) crossover.
If do not find crossover, in operation S1.24, parameter P is increased, and repeat said procedure for next the continuous group signal value in data group Ak working storage 31 shown in Figure 7.
Yet, if measure crossover, from working storage 31, take out the data group Ak that appears at the particular value of k=p along with crossover, and in operation S2.20 with its storage.
Then in operation S3.20, as previously mentioned, with the respective window value of preserving among each signal value stored among the operation S2.20 and the EEPROM12 relatively, so that determine coin authenticity and classification.
The advantage of the above-mentioned example of the present invention is to adopt horizontally-arranged coil device C1-C4, can more accurately clearly determine the fine feature of relevant coin.The size of coil block then can be determined the characteristic in each string district of coin respectively relatively less than coin shown in each curve map of Fig. 6.As previously mentioned, Fig. 6 curve map shows the output valve of bimetallic coin.Up to now, when adopting large diameter sensing coil, the major part that spreads all over the coin surface is at least produced an average effect, so this will be difficult to differentiate between the respective gasket of bimetallic coin and band center pit.Otherwise the foregoing description of receiver of the present invention can easily be differentiated above-mentioned bimetallic coin and corresponding packing ring.With reference to Fig. 6, the arch figure according to a real bimetallic coin of particular category is adopted in the output of signal X2 (a) usually.But,, then produce the track 33 at center " sagging " if the forgery packing ring of band center pit passes receiver.Adopt the receiver of prior art, the effect on the whole surface of coin is average, then owing to average effect, be difficult between genuine coin and packing ring, differentiating.Yet according to the present invention, if determine amplitude peak X1 (a), in order to determine manifold Ax, parameter X 2 (a) respective value adopts bimetallic coin and the visibly different value that has the respective gasket of center pit in manifold Ax, promptly is respectively value 34 and 35.Therefore, with regard to genuine bimetal coin, the memory window data among the EEPROM12 obviously are different from forges the data that packing ring produced, and allows to be easy to detect above-mentioned pseudo-goods.So according to the present invention, according to selected data acquisition Ax, compared with prior art, its discriminating can be accurately much clear.
When initial testing, the different criterions in can specified data are so that obtain the data acquisition of the unique characteristic of the specific coin of sign.For some coin, the criterion that is used for selected manifold Ax can be in the moment that one of coin parameter signal X equals or intersects with the predetermined critical of EEPROM12 storage.
For some currency, the intersection point between some curve of output valve shown in Figure 6 is an appropriate criterion.For other coin classifications, can utilize the local minimum that may exist in Fig. 6 curve.Some bimetallic coin may produce a concave point in one of curve, can be with it as criterion.
In addition, the more complicated characteristic relation between Fig. 6 curve map point can be utilized, and the associated shape of curve can be considered.For example, two values of manifold A1 that can produce from the very first time and the manifold A2 taking-up coin parameter signal X that produces again in one time of back subsequently; And can handle above-mentioned value so that obtain the gradient sign of each curve map.When gradient meets predetermined properties and concerns, then selected corresponding data set A, and with its with EEPROM212 in the data comparison of storing.Second embodiment
Now 10 to 15 in detail the second embodiment of the present invention is described in detail with reference to the accompanying drawings.Second embodiment is similar to first embodiment; And adopt identical sequence number to mark corresponding part.The configuration mode difference of coil device on monitor station 4 among second embodiment, and the mode of processing coin data is also different.
With reference to Figure 10, five above-mentioned coil device C1-C5 become row arrangement along Coin sideway 9 horizontal expansions.Replace 31 configurations of embarking on journey along a straight line shown in Figure 1, the interconnected arrangement of above-mentioned coil device, when coin when its slideway passes axis, the axis of coil device and the interarea of coin be quadrature basically.As previously mentioned, the intersection of coil device and coin mainly appears at the magnetic core district of each coil device; And the interconnected permission of coil shown in Figure 10 additional coil device C5 when coin passes slideway 9 will be included within the circumference range of coin 8.Can utilize the configuration of coil device, making the diameter range that detects coin is 15-33mm.Therefore, the configuration of Figure 10 allows the additional zone by the 5th coil device testing coin end face.The simple display line coil apparatus of Figure 11 connects with micro controller 11, and conforms to the aforesaid configuration of Fig. 1 and Fig. 5 basically, just for coil device C5 establishes an adjunct circuit, produces a coin parameter signal X5 (a).
In this example, each coil device C1-C5 is according to coil block C1a shown in Figure 1, and the b same way as comprises being installed in the relative both sides of Coin sideway, a pair of coil block on coin door 16 and the reception wall 19.
With reference to Figure 11, coin device C1-C5 links with micro controller 11 with location receiving coil apparatus CC coils main oscillations and interface circuit 10.The circuit operation is described identical with Fig. 2.The random access memory ram 31 that shows among the figure connects with micro controller 11.
In Figure 12, show the connection of coil device C1-C5 in greater detail.The coil block series connection of each coil device.The anti-phase connection of the coil block of coil device C2 is so that the polar repulsion of assembly.Another coin device, its assembly inhales the polarity of its coil with linking mutually.In pierce circuit, the connecting mode of every pair of coil with reference to Fig. 5 as previously mentioned.The natural resonance frequency of each pierce circuit is different, disturbs so that reduce.Frequency is between the 60-100KHz, but is not limited to this scope; And your pupil of frequency is with the coin in the incomplete penetration test.One traffic pilot 32 is set, this converter can the searching record coil device output valve and it is delivered to shared envelope comparator E1 and A/D converter D1, make that order is sent signal X1 (a), X2 (a), X3 (a), X4 (a) and X5 (a) in outlet line 33; Substitute each coil device with this and adopt an independent A/D converter.
In addition, a frequency detector F is set, so that the frequency change of magnetic test coil device C2 output valve.The output signal of detecting device F is delivered to A/D converter D2 ', so that the serial sampling value of coin signal X2 (f) is provided.Obviously, though do not show in Figure 12 for simplicity, traffic pilot 32 can also provide the location sampling value that receiving sensor CC uses.
Figure 13 is presented at during the coin monitor station 4 that coin passes Figure 10, the output signal value that sends from various coil device C1-C5.
Figure 14 is presented at the partial enlarged drawing that coin passes three the sequential signal groups of getting during the monitor station.Obviously, traffic pilot 32 shown in Figure 12 sends strobe pulse between the sequence valve of coil device C1-C5 output, so that produce sequential pulse sets of signals X1 (a)-X5 (a) of input micro controller 11 shown in Figure 11.In addition, the frequency modulation (PFM) of Figure 12 frequency detector F detection causes corresponding sampling value (Sample values) X2 (f).
The designed operation of micro controller 11 as shown in figure 15.The coin data sets of signals of order is in operation S5 input micro controller 11, the some different criterion in this detecting sensor output valve.In this example, 12 kinds of different criterions of monitoring are as follows:
| Criterion | Explanation |
| 1 | The maximal increment of X1 when coin passes (a) |
| 2 | The maximal increment of X2 when coin passes (a) |
| 3 | The maximal increment of X3 when coin passes (a) |
| 4 | The maximal increment of X4 when coin passes (a) |
| 5 | The maximal increment of X5 when coin passes (a) |
| 6 | When coin passes, the maximal increment of frequency X2 (f) |
| 7 | When coin passes, the maximum decrement of frequency X2 (f) |
| 8 | When coin passes, the decrement between two local maximums of amplitude X2 (a) |
| 9 | When coin passes, the decrement between two local maximums of amplitude X3 (a) |
| 10 | When amplitude X1 (a) reaches when presetting side-play amount amplitude X5 (a) from the no coin amplitude of its standard |
| 11 | When amplitude X2 (a) reaches when presetting side-play amount amplitude X4 (a) from the no coin amplitude of its standard |
| 12 | Come from the one or more data value of table criterion 1 to 7.Can be scheduled to the method for derivation deviation according to the currency that special-purpose maybe will detect. |
So used in the table, " increment " is relevant with Figure 13 transformation curve with " decrement ".With regard to criterion 1 to 6, the maximal increment of X (a) is the value that occurs when existing with respect to no coin.
With reference to Figure 15, in operation S6, measure above-mentioned 12 criterions.Obviously, when coin passes the coin monitor station, import micro controller 11 in the order coin parameter signal group that operation S5 produces.Each maximal value and the minimum value of the criterion that detection goes out according to last tabular and be temporarily stored in micro controller 11 joining RAM31 shown in Figure 11 in.Showing in the operation S7 of Figure 15 should be temporary.When coin passes,, will revise each maximal value and minimum value along with the local maximum and the minimum value of detection order in good time.Occur with this, will be relatively, and will whether should be maximal value or minimum value according to it to its aforesaid storing value and the new value that produces, storage is an appropriate value wherein.When coin passes, then with the final storing value of 12 criterions according to the aforesaid method of the first embodiment operation S3, with the window data of storing among the EEPROM12 shown in Figure 11 relatively.Therefore the window data of storing among the EEPROM is corresponding with 12 criterion value of different classes of genuine note, and whereby, criterion can be checked the authenticity that detects coin.This will carry out in Figure 15 operation S8.In operation S9, in the manner described above,, receive or reject coin then according to comparative result.
Obviously, the characteristics of this algorithm are that the local peaking of the various curves of Figure 12 and extreme value may be judged, reject then if occur bigger peak value and extreme value in succession in testing process.More apparent, the present invention is not limited to the actual criterion of obtaining with algorithm.Replace, can adopt other criterion to detect, as previously described crossover, gradient etc.
The article that value is arranged that comprise substitutionary coinage and other coin class at this used term " coin ".
Claims
Modification according to the 19th of treaty
1. Coin acceptor comprises:
One Coin sideway,
Some cell windings are used for coin and detect coin when slideway move,
The magnet oscillator circuit that links with the sensor coil;
The sensor coil becomes a row configuration along the Coin sideway horizontal expansion, so that by the magnet oscillator circuit energising, when coin passes coil and the regional inductive coupling that has nothing in common with each other of coin end face, and detect above-mentioned each zone one by one, produce time dependent sensor output value, as the function of corresponding zones of different;
Sampler is taken a sample the sensor output value that coin produces during by sensor, repeatedly so that corresponding sampling value is provided; With
Control device, monitoring sampling value also determine at least one of sensor output value and preset the moment that criterion conforms to, and data that thereupon again will sampling from sensor output and corresponding storage data are relatively, determine the qualification of coin.
2. Coin acceptor as claimed in claim 1, it is characterized in that: cell winding comprises a biographies sensor coil device, the respective area of its configuration and coin forms inductive coupling.
3. Coin acceptor as claimed in claim 2 is characterized in that: this biographies sensor coil device comprises along the coil block of the configuration of embarking on journey of Coin sideway horizontal expansion.
4. one kind as claim 2 or 3 described Coin acceptors, and it is characterized in that: one or more pickup wire coil apparatus comprise the coil block of the relative both sides of Coin sideway.
5. Coin acceptor as claimed in claim 4, it is characterized in that: one of coil block couples with magnet oscillator circuit, and another coil block and sampler couple.
6. one kind as claim 2 or 3 described Coin acceptors, it is characterized in that: one or more pickup wire coil apparatus only comprise the coil block in Coin sideway one side.
7. Coin acceptor as claimed in claim 6, it is characterized in that: each coil block of above-mentioned pickup wire coil apparatus and magnet oscillator circuit and sampler all couple.
8. one kind as each described Coin acceptor in the claim 2 to 7, and it is characterized in that: coil device comprises coil block, its towards the area of coin less than 72mm
2
9. one kind as each described Coin acceptor in the claim 2 to 8, and it is characterized in that: this coil device comprises coil, and its configuration is around the magnetic core that oozes magnetic towards Coin sideway.
10. one kind as each described Coin acceptor in the claim 2 to 9, and it is characterized in that: this pickup wire coil apparatus couples with an oscillatory circuit respectively, and the sampler operation, when coin passes coil device, with the oscillating characteristic parameter sampling of circuit.
11. a Coin acceptor as claimed in claim 10 is characterized in that: above-mentioned characteristic comprises frequency or amplitude or the two.
12. one kind as the described Coin acceptor of each aforementioned claim, it is characterized in that: the set of the sampling value of the sensor output that the configuration of control device occurred in the time of will being selected in one of output valve and conforming to above-mentioned predetermined criteria, and with selected sampling value and the comparison of above-mentioned storage data.
13. one kind as each described Coin acceptor in the claim 1 to 11, it is characterized in that: the configuration of described control device will determine that sensor output value meets moment of corresponding predetermined criteria and with the data of its value and storage relatively respectively.
14. one kind as the described Coin acceptor of each aforementioned claim, it is characterized in that: predetermined criterion comprises the catastrophe point in the sensor output value.
15. a Coin acceptor as claimed in claim 14 is characterized in that: described catastrophe point is included in the main or local maximum or the minimum value of the sensor output value that occurs during coin passes.
16. one kind as the described Coin acceptor of each aforementioned claim, it is characterized in that: predetermined criterion comprises that at least one sampling value that exists at least one sampling value that one of sensor sends and another sensor to send forms the family curve of a predetermined value.
17. Coin acceptor as claimed in claim 16, it is characterized in that: described sampling value family curve comprises from the intersection point of sequential sampling value with the corresponding sampling value of sending from another sensor of one of sensor emission, perhaps can be the sampling value relative change rate's that sends from sensor function.
18. a Coin acceptor as claimed in claim 16 is characterized in that: the family curve of this sampling value comprises from the value relative change rate's of sensor sampling predetermined function.
19. a method of differentiating coin comprises:
The coin that detection is passed through along a slideway, this slideway laterally becomes the some cell windings of a row arranged spaced along it, when coin passes therebetween, coil electricity, the regional inductive coupling that has nothing in common with each other with the coin end face, so that each zone is produced time dependent sensor output value, as the respective function of zones of different;
Sampling detector output valve repeatedly during coin passes sensor;
Order is monitored sampling value, determines that one of sensor output value meets predetermined criterion constantly at least; With
The data that to send from the sensor of sampling again compare with corresponding storage data thereupon, so that determine the qualification of coin.
20. method described in claim 19, it is characterized in that: comprise that proper coin passes when the cell winding, seek continuously to determine that one of sensor output value at least meets the moment of criterion, and if meet criterion more than once, need the selected sampling value that meet criterion most.
21. a Coin acceptor comprises:
One Coin sideway;
Some cell windings, when coin when slideway moves, coin is detected;
Magnet oscillator circuit couples with cell winding;
Cell winding is a row configuration along the Coin sideway horizontal expansion, so that it is switched on by magnet oscillator circuit, when coin passes when moving therebetween, the regional inductive coupling that has nothing in common with each other with the coin end face, and detect each district respectively, produce time dependent sensor output value, as the function of corresponding zones of different;
Sample circuit is so that each output valve of sensor that coin is produced during by sensor takes a sample repeatedly, so that corresponding sampling value is provided; With
Control circuit, the moment that monitoring sampling value and definite one of sensor output value at least conform to predetermined criteria, and will compare with corresponding storage data from the data of sensor sampling again, determine the qualification of this coin. thereupon
Claims (19)
1. Coin acceptor comprises:
One Coin sideway;
Some cell windings are used for coin and detect coin when slideway move; The sensor becomes a row configuration along the Coin sideway horizontal expansion, when passing sensor with its operation of box lunch, detects the different separately zone of coin end face, and produces the sensor output value that changes at any time, as the function of corresponding zones of different;
Sampler is taken a sample the sensor output value that coin produces during by sensor, repeatedly so that corresponding sampling value is provided; With
Control device, monitoring sampling value also determine at least one of sensor output value and preset the moment that criterion conforms to, and thereupon again with the data of sensor output and corresponding storage data relatively, determine the qualification of coin.
2. Coin acceptor as claimed in claim 1, it is characterized in that: cell winding comprises a biographies sensor coil device, its configuration will form inductive coupling with the respective area of coin.
3. Coin acceptor as claimed in claim 2 is characterized in that: this biographies sensor coil device comprises along the coil block of the configuration of embarking on journey of Coin sideway horizontal expansion.
4. one kind as claim 2 or 3 described Coin acceptors, and it is characterized in that: one or more pickup wire coil apparatus comprise the coil block of the relative both sides of Coin sideway.
5. one kind as the described Coin acceptor of claim 2,3 or 4, it is characterized in that: one or more pickup wire coil apparatus only comprise the coil block in Coin sideway one side.
6. one kind as each described Coin acceptor in the claim 2 to 5, and it is characterized in that: coil device comprises coil block, its towards the area of coin less than 72mm
2
7. one kind as each described Coin acceptor in the claim 2 to 5, and it is characterized in that: this coil device comprises coil, and its configuration is around the magnetic core that oozes magnetic towards Coin sideway.
8. one kind as each described Coin acceptor in the claim 2 to 7, and it is characterized in that: this pickup wire coil apparatus couples with an oscillatory circuit respectively, and the sampler operation, when coin passes coil device, with the oscillating characteristic parameter sampling of circuit.
9. Coin acceptor as claimed in claim 8 is characterized in that: above-mentioned characteristic comprises frequency or amplitude or the two.
10. one kind as the described Coin acceptor of each aforementioned claim, it is characterized in that: the set of the sensor output sampling value that the configuration of control device occurred in the time of will being selected in one of output valve and conforming to above-mentioned predetermined criteria, and with selected sampling value and the comparison of above-mentioned storage data.
11. one kind as each described Coin acceptor in the claim 1 to 9, it is characterized in that: the configuration of described control device will determine that sensor output value meets moment of corresponding predetermined criteria and with the data of its value and storage relatively respectively.
12. one kind as the described Coin acceptor of each aforementioned claim, it is characterized in that: predetermined criterion comprises the catastrophe point in the sensor output value.
13. a Coin acceptor as claimed in claim 12 is characterized in that: described catastrophe point is included in the main or local maximum or the minimum value of the sensor output value that occurs during coin passes.
14. one kind as the described Coin acceptor of each aforementioned claim, it is characterized in that: predetermined criterion comprises that at least one sampling value that exists at least one sampling value that one of sensor sends and another sensor to send forms the family curve of a predetermined value.
15. Coin acceptor as claimed in claim 14, it is characterized in that: described sampling value family curve comprises from the serial sampling value of one of sensor and intersection point from the serial sampling value of another sensor, perhaps can be the function from the sampling value relative change rate of sensor.
16. a Coin acceptor as claimed in claim 14 is characterized in that: the family curve of this sampling value comprises the predetermined function from the sampling value relative change rate of sensor.
17. a method of differentiating coin comprises
Detect the coin that passes through along the slideway that some cell windings are set at interval, when passing above-mentioned coil, detect the different separately zone of coin end face with its operation of box lunch; Above-mentioned coil forms a line along the Coin sideway horizontal expansion, so that produce the sensor output value that changes at any time, as the zones of different respective function;
The output valve of sampling detector repeatedly during coin passes sensor;
Order is monitored sampling value, determines that one of sensor output value meets predetermined criterion constantly at least; And will compare with corresponding storage data from the data of sensor sampling again, so that determine the qualification of coin. thereupon
18. a method as claimed in claim 17 comprises that proper coin passes when the cell winding, seeks continuously to determine that one of sensor output value at least meets the moment of criterion, and if meet criterion more than once, need the selected sampling value that meet criterion most.
19. a Coin acceptor comprises
One Coin sideway;
Some cell windings, when coin detects coin when slideway moves, sensor is along the Coin sideway horizontal expansion, the Cheng Yilie configuration, detect the zone that its end face has nothing in common with each other when passing sensor with convenient coin, and produce the sensor output value that changes at any time, as the respective function of zones of different;
Sample circuit is so that each output valve of sensor that coin is produced during by sensor takes a sample repeatedly, so that corresponding sampling value is provided; With
Control circuit, the moment that monitoring sampling value and definite one of sensor output value at least conform to predetermined criteria, and will store data relatively with corresponding from the data of sensor output sampling again thereupon, determine the qualification of this coin.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9723223.5A GB9723223D0 (en) | 1997-11-03 | 1997-11-03 | Coin validator |
| GB9723223.5 | 1997-11-03 | ||
| GBGB9804982.8A GB9804982D0 (en) | 1998-03-09 | 1998-03-09 | Coin acceptor |
| GB9804982.8 | 1998-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1278352A true CN1278352A (en) | 2000-12-27 |
Family
ID=26312539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98810654A Pending CN1278352A (en) | 1997-11-03 | 1998-10-30 | Coin acceptor |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1029309B1 (en) |
| JP (1) | JP2001522110A (en) |
| KR (1) | KR20010031644A (en) |
| CN (1) | CN1278352A (en) |
| AU (1) | AU744618B2 (en) |
| CA (1) | CA2306749A1 (en) |
| DE (1) | DE69828437T2 (en) |
| ES (1) | ES2230720T3 (en) |
| WO (1) | WO1999023616A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714934A (en) * | 2016-10-21 | 2021-11-30 | 应用材料公司 | Core configuration for in-situ electromagnetic induction monitoring system |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6230870B1 (en) | 2000-02-10 | 2001-05-15 | Coin Acceptors, Inc. | Coin detection device |
| EP1391851A1 (en) | 2002-08-22 | 2004-02-25 | Azkoyen Medios de Pago, S.A. | Coin selection device and method |
| JP5178243B2 (en) * | 2008-03-05 | 2013-04-10 | ローレル精機株式会社 | Coin identification device |
| KR100955745B1 (en) * | 2008-04-18 | 2010-04-30 | 인터내셔날 커런시 테크놀로지 코포레이션 | Anti-theft structure of a coin acceptor |
| KR101010088B1 (en) * | 2008-06-05 | 2011-01-24 | 인터내셔날 커런시 테크놀로지 코포레이션 | Coin acceptor |
| CN101819693A (en) * | 2010-04-23 | 2010-09-01 | 南开大学 | Intelligent coin currency value detecting system |
| JP6425878B2 (en) * | 2013-10-18 | 2018-11-21 | 株式会社日本コンラックス | Coin handling device |
| DE102020212238A1 (en) * | 2020-09-29 | 2022-03-31 | Pepperl+Fuchs Se | Inductive sensor device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8500220D0 (en) | 1985-01-04 | 1985-02-13 | Coin Controls | Discriminating between metallic articles |
| JPS6327995A (en) | 1986-07-21 | 1988-02-05 | 株式会社田村電機製作所 | Coin selector |
| AU649168B2 (en) * | 1991-09-28 | 1994-05-12 | Anritsu Corporation | Device for sorting coins |
| GB2266804B (en) | 1992-05-06 | 1996-03-27 | Mars Inc | Coin validator |
| JPH06231333A (en) * | 1993-02-02 | 1994-08-19 | Toshiba Corp | Coin identification device |
| DE4339543C2 (en) * | 1993-11-19 | 1998-07-23 | Nat Rejectors Gmbh | Procedure for checking coins |
-
1998
- 1998-10-30 JP JP2000519400A patent/JP2001522110A/en active Pending
- 1998-10-30 WO PCT/GB1998/003242 patent/WO1999023616A1/en active IP Right Grant
- 1998-10-30 KR KR1020007004697A patent/KR20010031644A/en not_active Application Discontinuation
- 1998-10-30 DE DE69828437T patent/DE69828437T2/en not_active Expired - Fee Related
- 1998-10-30 CN CN98810654A patent/CN1278352A/en active Pending
- 1998-10-30 CA CA002306749A patent/CA2306749A1/en not_active Abandoned
- 1998-10-30 ES ES98950225T patent/ES2230720T3/en not_active Expired - Lifetime
- 1998-10-30 AU AU96378/98A patent/AU744618B2/en not_active Ceased
- 1998-10-30 EP EP98950225A patent/EP1029309B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714934A (en) * | 2016-10-21 | 2021-11-30 | 应用材料公司 | Core configuration for in-situ electromagnetic induction monitoring system |
| CN113714934B (en) * | 2016-10-21 | 2024-04-26 | 应用材料公司 | Core configuration for in-situ electromagnetic induction monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1029309B1 (en) | 2004-12-29 |
| CA2306749A1 (en) | 1999-05-14 |
| DE69828437D1 (en) | 2005-02-03 |
| EP1029309A1 (en) | 2000-08-23 |
| ES2230720T3 (en) | 2005-05-01 |
| DE69828437T2 (en) | 2005-06-02 |
| AU9637898A (en) | 1999-05-24 |
| JP2001522110A (en) | 2001-11-13 |
| WO1999023616A1 (en) | 1999-05-14 |
| KR20010031644A (en) | 2001-04-16 |
| AU744618B2 (en) | 2002-02-28 |
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