EP0961979A1 - Device for converting numerical values with easy control - Google Patents
Device for converting numerical values with easy controlInfo
- Publication number
- EP0961979A1 EP0961979A1 EP98910801A EP98910801A EP0961979A1 EP 0961979 A1 EP0961979 A1 EP 0961979A1 EP 98910801 A EP98910801 A EP 98910801A EP 98910801 A EP98910801 A EP 98910801A EP 0961979 A1 EP0961979 A1 EP 0961979A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- value
- control means
- wheel
- converted
- user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
- G06F15/0225—User interface arrangements, e.g. keyboard, display; Interfaces to other computer systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
- G06F15/025—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators adapted to a specific application
- G06F15/0258—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators adapted to a specific application for unit conversion
Definitions
- the present invention relates to devices for converting digital values between two measurement scales. More specifically, the invention provides a device capable of calculating and displaying, from an input value expressed in a first measurement unit, an output value expressed in a measurement unit different from the first and designating the same physical magnitude.
- the present invention relates for example to currency converters, converters between the metric system and the imperial system, or even for example converters between hectares and square kilometers.
- the invention is not limited to conversions between two measurement scales linked together by a fixed multiplying coefficient, but also relates to conversions between two measurement systems corresponding to one another by more complex functions, for example logarithmic functions.
- Document US Pat. No. 4,228,516 has proposed a conversion device provided with a keyboard for entering the value to be converted, a display panel for the value to be converted, a display panel for the converted value, and a switch to select the nature of the conversion to be performed.
- This device has major drawbacks.
- a first drawback is that it is very difficult to use such a device with one hand. Indeed, such manipulation assumes that the user is able to hold the device in the palm of the hand while running a finger on the various keys of the keyboard, which is impractical.
- a second drawback of such a device is that if the value to be converted is erroneous as a result of a typing error, the only solution is to start from zero the entry of the value to be converted. Entering the value to be converted therefore requires a great deal of concentration on the keys of the keyboard, which diverts the user from the attention initially paid to the physical meaning of the value he is converting.
- Such a device is therefore not very interactive and not very intuitive to use.
- such a device is unsuitable for certain users, for example the elderly or children with poor manual dexterity.
- the present invention aims to remedy these various drawbacks.
- a device for converting digital values between two measurement scales comprising:
- the input module comprising a control means producing. when actuated by a user, an incrementation or a decrementation of the digital input value, so that a digital input value desired by the user can be reached by the sole solicitation of this control means.
- the invention thus provides a conversion device which can be used with one hand and in an easy, intuitive manner, without having to turn away from the initial attention paid to the meaning of the physical quantity to be converted.
- a device according to the invention can be used in the context of a Francs / Euros conversion, on numerous occasions in a supermarket, without thinking about the handling of the device and therefore without producing excessive fatigue in the user of this device.
- This device through its intuitive use, quickly teaches its user to appreciate for himself the physical meaning of a quantity expressed in a new measurement scale.
- FIG. 1 is a front view of a conversion device according to the invention, comprising a wheel whose rotation causes a scrolling of a digital value to be converted;
- FIG. 1 is a side view of the same device as in Figure
- FIG. 3 is a top view of the same device as in Figures 1 and 2;
- FIG. 4 is a front view of a conversion device according to a second variant of the invention, comprising a control member consisting of two push buttons;
- FIG. 5 is a side view of the same device as in Figure 4.
- FIG. 6 is a perspective view of a device according to a third variant of the invention, arranged on a supermarket trolley bar;
- FIG. 7 is a front view of a conversion device according to a fourth variant of the invention comprising a control member consisting of a rotary roller disposed on a front face of the device.
- - Figure 8 is a perspective view of the same device as in Figure 7;
- FIG. 9 is a side view of the same device as in Figures 7 and 8; - Figure 10 shows a front view of a conversion device according to the invention, comprising a central wheel.
- FIG. 1 to 3 There is shown in Figures 1 to 3 a converter device according to a first variant of the invention.
- This device has a substantially flattened shape along a main plane. More specifically, this device has a thickness substantially equal to one tenth of its length in this main plane.
- This device thus has two substantially parallel faces extending along its main plane. These two faces are joined together by rounded surfaces, so that the device has a circumferential edge without any edge.
- the device has in its main plane an oblong oval shape, substantially elliptical. More specifically, the outline of the device in the plane of Figure 1 is substantially the same as that of a geometric shape consisting of two circles of different diameters connected together on two sides by common tangents. Thus, the device has in the plane of Figure 1 a teardrop shape.
- the device has a length and a width such that it can be positioned in one hand so that the small circle of its contour is in the palm of the hand, and that the large circle of its contour protrudes from the palm of the hand at the side of the hand corresponding to the position of the index finger.
- This teardrop shape with two circles generating the contour allows the device to be held in one hand, which is significantly improved compared to a conventional device of rectangular shape.
- such a teardrop shape has a mechanical resistance, in particular a crushing resistance, which is particularly high.
- the device of Figures 1 to 3 thus resists accidental crushing, and can more generally be placed in a rear pants pocket without the risk of being crushed when the user sits, unlike conventional calculator type devices.
- the device according to the invention is advantageously produced with a shelled or rounded external structure, so that it has improved mechanical resistance.
- the device has on one of its faces a set of two liquid crystal screens 100 and 200, which each make it possible to display a seven-digit value.
- the device comprises a control wheel 300. This wheel
- 300 is a rotating disc arranged parallel to the main plane of the device, and contained approximately 80% inside the device, and protruding from the edge of the latter in a part of the outline corresponding to the large circle previously mentioned.
- the wheel 300 being offset to the right with respect to a main axis X of the device defined as the axis passing through the centers of the small and large circles of the outline of the device, the wheel 300 is located, when the device is contained in the right hand, facing the thumb of the right hand.
- the wheel can be placed opposite to suit use by a left-hander.
- the device of FIGS. 1 to 3 also has, at the level of the small circle of its outline, an orifice 400 passing through it right through and through which a cord 500 is engaged, the role of which can be to surround the wrist of the user, or to hang the converter on a bunch of keys.
- the wheel 300 is connected to a transducer not shown which produces an incrementation or a decrementation of the numerical values of the dials 100 and 200, according to the direction of rotation of the wheel 300.
- the numerical values of the dials 100 and 200 are determined and displayed by a computer, not shown. At each change of position of the wheel 300, and therefore at each change of the values of the dials 100 and 200, the computer performs a calculation step so that the displayed values are permanently linked by a conversion function linking the two measurement scales.
- the device of FIGS. 1 to 3 does not provide any member for triggering the conversion, the device permanently displays two values linked to each other by a conversion relationship. The values of the two dials therefore scroll simultaneously for any actuation of the rotary wheel 300.
- the screen 100 is intended to display a value in francs, and the screen 200 a value in Euros.
- the calculator therefore ensures that these two values are permanently linked by a multiplying coefficient which is equal to the parity coefficient
- a user wishing to know the value in Euros of an object of which he knows the value in Francs actuates the scroll wheel 300 so as to scroll the value of the screen 100 to the value in Francs which he knows.
- the values in Euros scroll simultaneously on the 200 screen.
- the value in Francs is reached, it reads the corresponding value in Euros which is displayed on the 200 screen.
- This device has many advantages. Its use is particularly simple by the fact that the conversion is carried out by the sole solicitation of a control member. The possibility of using the device by the action of a single control member also makes the device particularly affordable for anyone, including a careless user.
- This device makes it possible to convert in one direction or another, for example in the direction Francs / Euros or in the direction Euros / Francs, by a strictly identical manipulation of the device.
- the user can make conversions in these two directions, continuously and without changing the position of the fingers, which is very advantageous, for example in the case of a price discussion between two interlocutors not speaking in the same currencies.
- the use of this device is, moreover, particularly educational. Indeed, by scrolling the figures, the user produces a very low intellectual effort compared to that produced by strumming on a keyboard: he can therefore watch both the Francs and the Euros scroll simultaneously, and therefore more precisely see the values in Euros, while he realizes the importance of the figures in Francs displayed on the neighboring screen. He associates his natural perception of the financial quantity displayed on screen 100 with a new measurement of this quantity displayed on screen 200.
- control means such as a transducer, capable of producing a scrolling of the numerical values whose speed is a linear function of the speed of rotation of the wheel.
- control means such as a transducer
- the speed of movement of the numerical values is proportional to the speed of rotation of the wheel.
- the device is provided with a transducer capable of detecting at any time the speed of rotation of the wheel and capable of producing a scrolling of the value to be converted according to a running speed which is a chosen non-linear function of the speed of rotation of the wheel.
- the running speed measured for example in Francs / second, is not proportional to the speed of rotation of the wheel, but is an increasing and concave function of the speed of rotation of the wheel, such as an increasing exponential function for example.
- Such a device then integrates into an internal logic a speed detection in order to amplify the rotation effect of the wheel.
- a speed detection in order to amplify the rotation effect of the wheel.
- the value increment will be 10 francs if these 20 degrees are covered in one second, and will be 100 francs if the 20 degrees are covered in half a second.
- Such an arrangement produces, when the scroll wheel is actuated slowly, a very slow and very precise scrolling of the numerical values displayed. Thanks to this arrangement, great precision in use is therefore obtained.
- Such variable sensitivity allows optimal use by people with various tactile abilities, for example by the elderly or children.
- the device is self-adapting. More generally, this effect can be obtained by adopting a transducer producing a speed of movement of the figures which is not simply a linear function of the speed of rotation of the wheel, but a function which grows faster than linearly. In this way, for a given angular displacement of the wheel, the incrementation or decrementation produced will be all the higher the greater the speed of rotation on this displacement.
- the device to have incrementation or decrementation means taking into account the acceleration of the wheel so that for the same value of angular displacement of the wheel, the increment or the decrement produced by this displacement is all the more important as the acceleration of the rotation of the wheel on this displacement is high.
- the device has a on its edge, laterally to the X axis and on the side opposite the position of the knob, a push button 600.
- This button 600 produces, when it is depressed, an increased effect of the actuation of the wheel 300.
- the speed of movement of the numerical values is higher when the button 600 is pressed.
- the actuation of the button 600 can for example produce an amplification by a factor K of the speed of evolution of an input value for the same solicitation of the wheel 300.
- Button 600 allows a user to quickly change the range of values, and thus cover a very large range of values.
- the button 600 can be replaced by any device making it possible to collect information of all or nothing type, such as a switch, for example a photo-cell, or an electrical resistance at threshold detecting the presence of a finger.
- a switch for example a photo-cell, or an electrical resistance at threshold detecting the presence of a finger.
- the device in Figures 1 to 3 produces a simultaneous display of the value to be converted and the value converted.
- a conversion module performs automatic conversion and display of the converted value whenever an input value is displayed or modified, so that the user increments or decrements the displayed converted value, simultaneously with any increment or decrementation of the value entry.
- FIG. 10 shows a device of the same general shape as the device of FIGS. 1 to 3, comprising a scroll wheel 300, two display panels 100 and 200, and two input accelerator buttons 600.
- the wheel 300 is in this variant located on the edge of the device, centered on a longitudinal axis of symmetry X of the device.
- the two buttons 600 are placed symmetrically to each other with respect to the axis X, on either side of this axis, and on the edge of the device.
- the wheel 300 is centered on the X axis and that the buttons 600 are placed symmetrically with respect to the X axis allows the device to be used by a left-handed person or by a right-handed person. Indeed, whether it is placed in a left hand or in a right hand, the wheel is easily actuated by the thumb of the user, and one of the two buttons 600 is located vis-à-vis with the one of the other fingers of the hand, for example the index or middle finger. In this variant, simultaneous pressing of the two buttons 600 produces a reset to zero of the figures displayed on the display panels 100 and 200.
- the wheel 300 is a wheel removable by a user. It can be easily separated from the rest of the device and replaced by another wheel. Such an arrangement allows a user to choose a scroll from a range of scrolls each having a different effect on the scrolling of the numerical values.
- the user can mount on the rest of the device a wheel causing rapid scrolling of the digital values or a wheel causing slow scrolling of the digital values.
- Such interchangeable knobs are provided on their periphery with means for triggering scrolling, of the conductive track type, the density of which on the periphery of the knurl is proportional to the speed of the scrolling caused by this knurl.
- the various removable knobs will be provided with respective colors characterizing their own behavior.
- a wheel producing a fast scrolling can be made of red color
- a wheel producing a slow scrolling of blue color can be made of red color
- the wheel is mounted on a control assembly which is fitted into the rest of the device and which can be detached from the rest of the device.
- This assembly includes not only the wheel, but also means for interpreting or amplifying the speed of the wheel, such as a transducer. It is therefore easy for a user to dismantle this control assembly from the device, and to replace it with another wheel control assembly, which produces a different effect of the rotation of the wheel on the scrolling of the numerical values.
- the device can be provided with different control assemblies each having a particular effect on the scrolling of the digital values. A user can thus choose a wheel control assembly producing a rather fast or rather slow scrolling according to his own needs.
- the user can replace a rotary wheel assembly with a control assembly having another type of control member or means, such as one of those which will be described below.
- a device with two knobs arranged symmetrically with respect to a longitudinal main axis of the device, the two knobs both having the same function of controlling the movement of the numerical values.
- FIGS. 4 and 5 show a device according to a second variant of the invention.
- This device has a generally flattened shape and, in a main plane in which the device extends, it has a substantially circular outline.
- This device therefore has two opposite faces, which are here of convex shape, so that this device has a generally substantially lenticular shape.
- this device has on one of its faces two digital display panels 100 and 200, intended respectively to display a value to be converted and a converted value.
- the face of the device on which these two display panels are visible is constituted by a glass lens 210 bonded to the device above the panels 100 and 200.
- This lens produces a magnification of the values displayed on the panels 100 and 200, A such a magnifying glass effect can be particularly important for the elderly with low vision, or to allow use by the visually impaired.
- the lens 210 can be a removable magnifying cover.
- This device forms, on its contour, a substantially rounded edge. On this edge are arranged two push buttons 320 and 340, arranged slightly on the side of the device so that these buttons 320 and 340 are facing the thumb of a user holding the device in the palm of his hand with the display panels 100 and 200 arranged horizontally facing him.
- buttons 320 and 340 produce, when pressed, respectively an incrementation and a decrementation of the numerical value to be converted displayed on the panel 100, simultaneously with an incrementation / decrementation of the converted value displayed on the screen 200.
- This incrementation or decrement describes continuously all the values between a value initially displayed and a value to be reached, so that any value desired by the user can be reached by the sole solicitation of a single control means here formed by the set of two buttons 320 and 340.
- this device therefore simultaneously displays the value to be converted and the converted value, and produces a simultaneous scrolling of these two values.
- the push buttons 320 and 340 are associated with a transducer which produces a scrolling of the value to be converted at a speed which depends on the force exerted on the actuated button.
- the values scroll all the more quickly the corresponding button undergoes a significant displacement under the pressure of a finger of the user.
- Such an arrangement allows the user to produce, with the same button, and without changing gestures, both large-scale increments and small-scale increments.
- the device can both be used to convert prices of everyday goods, typically prices around 10 francs, and at the same time be used to convert higher amounts, the price of a car per example.
- Such accelerated scrolling produced by a stronger pressure exerted on a button 320 or 340 avoids the user having to wait for very long delays for high amounts to be reached.
- the device of FIGS. 4 and 5 has, like the device of FIGS. 1 to 3, a button 600 for accelerating the scrolling of the values.
- the scroll wheel 300 or the buttons 320, 340 can be replaced by a member similar to a game stick known in the field of video games under the name of joystick, a rotating ball, known for example under the English name of trackball, or a non-mobile member but suitable for transmitting a signal representative of a force applied to this member, for example a member called trackpoi ⁇ t according to English terminology.
- control member may for example be any member having a rest position in which it is returned by elastic means.
- the scrolling speed of the input value is an increasing function of a displacement applied to such a member by the user.
- FIG. 6 shows a device according to a third variant of the invention.
- the device is arranged on a gripping bar 1000 of a supermarket trolley.
- This device is of a substantially tubular shape, and is placed around the bar 1000.
- the device has an outside diameter slightly greater than the diameter of the bar 1000.
- the device of Figure 6 is a tube formed of two half-tubes symmetrical to each other with respect to a plane passing through a longitudinal axis of the tube.
- the two tubes are here fixed to each other by screwing.
- the device of Figure 6 has an upper planar face provided with two display panels 100 and 200 having the same functions as the display panels previously described. Next to these display panels 100 and 200, and offset along the bar 1000, is placed a bracelet 380 surrounding the bar 1000. This bracelet 380 is rotatable around the bar and produces, by its rotation, a scrolling of the numerical values displayed on panels 100 and 200.
- the converter produces a running speed which increases as a function of the stressing intensity of the biasing member, that is to say here of the speed of rotation of the bracelet 380.
- the device is provided with means measuring a stress intensity of a control means for scrolling the digital input value according to a scroll speed which depends on the stress intensity measured. by these means.
- This converter can also be equipped with a computer interpreting the speed of rotation of the bracelet 380 to produce a speed scrolling speed which is not necessarily proportional to the speed of rotation of the bracelet 380.
- the scrolling speed may for example be exponential as a function of the speed of rotation of the bracelet 380, which produces a marked improvement in the comfort of using the device .
- the device of FIGS. 7 to 9 corresponds to a third variant of the invention in which the device has a general shape similar to that of a half full eggshell. Thus, this device has a lower surface 1100 having the shape of an egg half-shell, and a flat upper face 1200. On the upper face 1200 are present three display panels
- roller 390 free to rotate, and protruding from the face 1200 by a longitudinal half, that is to say a half delimited by two generatrices of the roller 390.
- the three panels 100, 200 and 250 for displaying numerical values are arranged parallel to the roller 390.
- This device simultaneously displays three numerical values corresponding to the same physical quantity linked together by defined conversion ratios.
- This device therefore produces a conversion of a value expressed in a first measurement scale, for example the value displayed on the panel 100, simultaneously into two values expressed in two other measurement scales or systems of different units, displayed respectively on the panels 200 and 250.
- This device also has a button 600 for accelerating the scrolling similar to those previously described.
- This device also has a selector 800 consisting of a button that can be moved laterally in three positions, two of which are shown in dotted lines in FIG. 7.
- a first position could for example correspond to a Francs / Euros / Marks conversion, a second position to a Francs / Lires / Dollars conversion, a third to a Dollars / Pounds / Euros conversion.
- a device according to the invention can have a large number of display panels, the units being able to be changed by group, for example between Fahrenheit / Celsius / Kelvin groups,
- the device can include means allowing the user to change usage parameters or parameters of conversion functions.
- Such means can be activated for example by means of a button of small dimensions known as a micro-push button, designed to be activated with a pen.
- a user can thus modify, for example, the K factor of an input accelerator button, an exchange rate, or any other parameter.
- a device optionally provided with a selector using which, from a first determined unit such as for example Euros, a second unit is chosen in which one wants to convert a value into Euros, for example from a series of national units.
- a selector using which, from a first determined unit such as for example Euros, a second unit is chosen in which one wants to convert a value into Euros, for example from a series of national units.
- the display panels are located on the same face.
- a device according to the invention can thus be with two, four or more faces, each of the faces being able to display a different unit, for example a representation of the same monetary quantity in francs, in Deutch Mark, in Read, in Book.
- a device according to the invention makes it possible to avoid adopting a keyboard.
- the devices according to the invention can be produced with a particularly small size, while remaining very ergonomic.
- a watch incorporating such a device will not have the drawbacks of known calculating watches, the use of which requires great finesse or requires having a pen close at hand to actuate them, and the reading of which is difficult for a user not having excellent eyesight
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Input From Keyboards Or The Like (AREA)
- Position Input By Displaying (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9702521A FR2760107B1 (en) | 1997-02-21 | 1997-02-21 | INSTANTANEOUS DATA CONVERSION DEVICE |
FR9702521 | 1997-02-21 | ||
PCT/FR1998/000338 WO1998037496A1 (en) | 1997-02-21 | 1998-02-20 | Device for converting numerical values with easy control |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0961979A1 true EP0961979A1 (en) | 1999-12-08 |
Family
ID=9504371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98910801A Withdrawn EP0961979A1 (en) | 1997-02-21 | 1998-02-20 | Device for converting numerical values with easy control |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0961979A1 (en) |
AU (1) | AU6504498A (en) |
FR (1) | FR2760107B1 (en) |
WO (1) | WO1998037496A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999046690A1 (en) * | 1998-03-11 | 1999-09-16 | Lighthouse Ventures B.V. | Conversion device |
NL1008561C2 (en) * | 1998-03-11 | 2000-02-23 | Lighthouse Ventures B V | Conversion device for e.g. currency conversion |
FR2804223B1 (en) * | 2000-01-21 | 2002-08-09 | Financ Europocket Soc | DEVICE FOR ENTERING NUMBERS FOR SIMPLIFIED USE |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2755403A1 (en) * | 1977-12-13 | 1979-06-21 | Varicom Ag | CALCULATOR |
US4228516A (en) * | 1978-12-26 | 1980-10-14 | Johnston Sr Harry L | Computer for metric conversion |
US4272826A (en) * | 1979-08-30 | 1981-06-09 | Peerless Instrument Co., Inc. | Electronic calculator |
CH641630B (en) * | 1980-03-14 | Centre Electron Horloger | DATA ENTRY DEVICE. | |
NL8203761A (en) * | 1982-09-29 | 1984-04-16 | Johannes Van Dalen | PORTABLE DEVICE WITH MANUAL OPERATION VIA NUMBER OF KEYS. |
GB2207263B (en) * | 1987-06-12 | 1991-06-05 | Gunze Kk | A currency conversation calculator |
US5432510A (en) * | 1993-03-22 | 1995-07-11 | Matthews; Walter S. | Ambidextrous single hand chordic data management device |
WO1995024714A1 (en) * | 1994-03-11 | 1995-09-14 | Elonex Technologies, Inc. | Removable pointer device |
DE29702500U1 (en) * | 1997-02-13 | 1997-04-03 | Meier, Jörg, 85664 Hohenlinden | Calculator for easy conversion of exchange rates of different currencies |
-
1997
- 1997-02-21 FR FR9702521A patent/FR2760107B1/en not_active Expired - Fee Related
-
1998
- 1998-02-20 AU AU65044/98A patent/AU6504498A/en not_active Abandoned
- 1998-02-20 EP EP98910801A patent/EP0961979A1/en not_active Withdrawn
- 1998-02-20 WO PCT/FR1998/000338 patent/WO1998037496A1/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9837496A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2760107A1 (en) | 1998-08-28 |
WO1998037496A1 (en) | 1998-08-27 |
FR2760107B1 (en) | 2001-11-16 |
AU6504498A (en) | 1998-09-09 |
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