• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for the input of information to a data processing system, wherein a position sensitive optical sensor surface (2), which is adapted to the data processing system, which is adapted to the position of the intersections of its surface with a cross-sectional area (4) one of a Luminescent pointer emitted light beam to detect a display area (1) for the data processing system runs around. On the user side of the display surface (1) extends to this parallel light curtain whose optical detector is the sensor surface (2).
    公开号:AT512461A1
    申请号:T173/2012
    申请日:2012-02-10
    公开日:2013-08-15
    发明作者:Robert Dr Koeppe；Richard Dr Ebner
    申请人:Isiqiri Interface Tech Gmbh；
    IPC主号:
    专利说明:

    • · »· * * ♦ *« i ·
    * * * * * I J 460
    description
    The invention relates to a device for the input of information to a data processing system.
    AT 506 617 B1 and AT 507 267 A1 each describe a sensor surface which, depending on the coordinates of the point of impact of a light beam, generates electrical signals on it, by means of which these coordinates become recognizable for a data processing system. The sensor surface is substantially formed as a foil made of an organic material, from which electrical signals are readable from spaced tapping points whose relative size to one another depends on the distance of the tapping points to the impact point of the light beam triggering the signals. According to the two documents, the sensor surface can be applied to a display surface for a data processing system and with a luminescent pointer, typically a laser pointer, the position of a processing mark within the area of the display surface can be defined with the involvement of the data processing system. According to AT 506 617 Bl, the sensor surface is formed by a layer composite of a photoelectric surface with planar connection electrodes, of which at least one electrode has a significantly high ohmic resistance in its circuit, so that the tapped by connection points at this electrode electrical signal by the ohmic resistance in the areal electrode is significantly reduced. According to AT 507 267 A1, the sensor surface is formed by a luminescence waveguide and the spaced-apart tapping points are small-area photoelectric sensors. From the point of incidence of a light beam on the sensor surface, light propagates through the waveguide in the luminescence waveguide and loses intensity with the distance to the point of impact, so that the signal measured at the photoelectric sensors is independent of the distance of the sensors ;
    , * I depends on the point of impact. The methods according to both documents often find it disadvantageous that the sensor surface has to be applied directly to the display surface, as this can adversely affect the quality of the display and scale the costs and outlay proportionally to the surface.
    WO 2010/118450 A1 proposes not to provide sensor surfaces of the type described above directly on the display surfaces, but as narrow bordering strips therearound, the plane of the strips lying parallel to the plane of the display surface. For this purpose, it is further proposed to make it possible to measure the position of a luminous beam impinging on the display surface in that the cross-sectional area of the luminous beam is formed by a plurality of lines which extends beyond the display area at least up to the framing by sensor surfaces. From the thus measurable positions of the sectional surfaces of the cross-sectional area of the luminous beam is calculated back to the position of the cross-sectional center of the luminous beam on the display surface and this center can be assigned by a data processing system, a processing mark. This achieves the advantages of the construction methods described above without the need for the display surface itself to be sensitive. The cost and effort of the sensors only scale with the size of the display area and the display surface itself is not impaired in its properties.
    In WO 2010/121279 A2, it is proposed, in addition to all sensor principles described above, to allow the light intensity of the light beam emitted by the pointing device to fluctuate in pulse sequences, wherein character sequences are assigned to specific pulse sequences, typically the sequence of on and off states. This makes it possible, by the pointing device on the sensor surface to the connected to the sensor surface data processing system, characters, 2 ί J 460 such as letters or " " enter. It also makes it possible to make multiple pointing devices for the data processing system clearly distinguishable by different pointing devices different identification information associated pulse patterns "send".
    In WO 2010/118449 A2 it is proposed to use the sensor principle described in the aforementioned documents AT 506 617 Bl and AT 507 267 A1 for a planar detector for use on light curtains.
    The object of the invention is based on the known from WO 2010/118450 Al and WO 2010/121279 A2 principle for input to a data processing system by means of optical sensor surfaces, which are arranged at the edge of the display surface and in the situation that To detect the position of the intersections of its surface with the cross-sectional area of a light pointer emitted by a luminous pointer, so that the display surface also in the manner of a touch-sensitive input surface is usable, so can detect the coordinates of the point of contact of a finger or a pen with the display surface. For solving the problem, it is proposed to arrange a parallel light curtain in front of the display surface and to direct the light of this light curtain to those sensor surfaces which surround the display surface.
    A light curtain in the sense of this document is an optical monitoring device in which the principle of the light barrier is extended from a linear monitoring area to a planar monitoring area. By arranging such a light curtain in front of the display surface parallel to it, any object which touches the display surface must interrupt the light curtain and is thus detected. 3 * J 460 l • · · I «Φ * · * ·· · • Φ« «« «» »» »
    The invention is illustrated by means of schematic diagrams:
    FIG. 1 shows a front view of a display surface equipped according to the invention. FIG
    Fig. 2: shows three embodiments of the edge region of the display panels according to the invention in a lateral sectional view, wherein the viewing direction is parallel to the longitudinal course of the respective edge.
    Fig. 3: shows another four embodiments, wherein in case a) a curved sensor surface is used and in case b) the sensor surface rest on a made of transparent material body
    According to FIG. 1, the rectangular display surface 1, typically a screen surface, on which images are generated by a data processing system, is bordered on all four sides by an optical, position-sensitive sensor surface 2. The sensor surface 2 has mutually spaced tapping points 2.1, at which electrical signals whose strength depends on the impingement of light signals on the sensor surface, generated and forwarded to the data processing system.
    Four light sources 3 are arranged outside the display surface at each Ek-ke and outshine the display surface each with a parallel to the display surface light beam having a line-shaped cross-sectional area, which is also aligned parallel to the display surface. The light emitted by the light sources 3 strikes the respective parts of the sensor surface 2 located on the other side of the display surface. If a part 6, such as a pen or a finger, projects onto the display surface 1, this part 6 shadows a part of the part of FIG the light sources 3 emitted light, however, from hitting the sensor surface 2. On the sensor surface 2 results for each light source 3, a shaded area 3.1. From the knowledge 4
    J 460 nis the position and extent of the shaded areas and the position of the light sources 3 position and contour of the part 6 on the display surface 1 as a sectional area of the connecting surfaces between shaded areas 3.1 and the respective associated light sources 3 are calculated. The center of the part 6 on the display surface can be calculated more easily as an intersection of at least two lines, which is in each case the bisector of a shaded area 3.1, starting from the respectively associated light source 3.
    In the plane of the display surface, the cross-shaped cross-sectional area 4 of a light beam is indicated in Fig. 1 by a - not shown - luminous hands - as typically a laser pointer with line optics - is sent in the direction of the display surface. The cross-shaped cross-sectional area 4 of this light beam strikes the sensor surface 2 at several points.
    The sensor surface 2 is thus hit both by a part of the cross-sectional area 4 of the light beam of the luminous pointer, and by the light rays emitted by the light sources 3. The light beam of the illuminated pointer can hit the display area and the sensor area from a large angle range around the normal of the display area. The light-flooded by the light sources 3 surfaces are completely or approximately completely parallel to the display surface.
    From Fig. 2 is illustrative of how it can be achieved that both the light coming from the light sources 3 and the light beam of the light pointer is incident on the sensor surface. The direction of incidence of the light rays is symbolized by dotted arrows.
    In the version according to sketch a) of Fig. 2, the sensor surface 2 is inclined relative to the display surface 1 at an acute angle to the side of the luminous pointer, on the sensor surface 5 increases with increasing distance to the display surface 1 of the normal distance to the plane of the display surface. In this design, both the light coming from the luminescent pointer, including that which comes from the light sources 3 and floats parallel to the display surface, can impinge on the sensor surface 2, without there being an additional semipermeable mirror 5 as in the version according to the sketch b) and c) needs.
    In versions b) and c) according to FIG. 2, the sensor surface 2 is oriented normal to the display surface 1 or parallel and flush with it. So that both the light coming from the luminescent pointer, and also that which comes from the light sources 3, can hit the sensor surface 2, a semitransparent mirror 5 is at an acute angle to the sensor surface and to the display surface between one of the two light sources and the sensor surface 2 arranged. Instead of a relatively wide semipermeable mirror 5, one could also use a narrower normal mirror, beyond which the light beam just passing through the semitransparent mirror shown in b) and c) could simply radiate past to strike the sensor surface 2.
    The sensor surface 2 detects not only the impact of light signals, but also the location maps of its impact points on the sensor surface. Of course, not only impact points of " positive light signals " detectable, ie the coordinates of localized places where higher light intensity predominates than in the environment, but also the coordinates of " negative light signals " Thus, the coordinates of localized locations where lower light intensity prevails than in the environment, Thus, both the coordinates of their sectional areas with the cross-shaped cross-sectional area 4 of the light beam of the luminous pointer are detectable by the sensor surface 2, but also the coordinates of their by the part 6 against the Light from the light sources 3 shaded areas 3.1. 6 • 9 • 9 • ·
    tft «· ♦ * * · · · J 460
    • * «I • * · ι
    Further advantageous arrangements and embodiments of the sensor surface are shown in FIG. Thus, the sensor surface 2 can be executed curved as shown in Fig. 3a) sketched so that both the light beam 4 and the light rays 3 each meet at an acute angle to parts of the sensor surface. This design can cause a significant space savings compared to the outlined in Fig. 2 Bueformen. In Fig. 3b), the sensor surface is stretched over a voluminous body 7, which is formed of a transparent plastic or glass and which directs both the light of the light beams 3 and the light beam 4 by means of total internal reflection to the sensor surface. The body 7 may be provided with luminescent particles to effect a better transmission of the incident light of the light beams 3 and 4 to the sensor surface.
    It is of course possible to form the sensor surface 2 as a pixel field of many small-area photosensors, each of which tells each individual whether he is hit by a light pulse or not and where the spatial resolution is exactly equal to the Pixelrastermaß. However, this version is either extremely expensive or has a very poor spatial resolution.
    Much better it is to form the sensor surface 2 according to the principle described above as a film of an organic material, from which electrical signals are read from each other spaced tapping points whose relative size to each other from the distance of the tapping points to the triggering point of the light beam depends on the size of the signals can be recalculated by the data processing system on the impact point on the sensor surface.
    According to a first alternative embodiment known per se, the sensor surface 2 can be formed by a layer composite of a photoelectric surface with planar connection electrodes, wherein at least one connection electrode in its circuit 7
    has a significantly high ohmic resistance, so that the tapped by connection points 2.1 to this electrode electrical signal is significantly reduced by the ohmic resistance in the flat terminal electrode in dependence on the distance of the connection points to the point at which a signal is generated.
    According to a second, particularly advantageous and also known per se embodiment variant, the sensor surface 2 is formed by a luminescence waveguide and the spaced apart tapping 2.1 are small-area photoelectric sensors. From the point of impact of a light beam on the sensor surface 2, light propagates through the waveguide in the luminescence waveguide and loses intensity with the distance to the point of impact, so that the signal measured at the photoelectric sensors 2.1 is dependent on the distance of the sensors from the point of impact.
    In both embodiments, one comes out with much less tapping points 2.1, as places are distinguishable from each other as impact points of light signals. The construction methods are also extremely much cheaper in the required large-scale design, as the previously mentioned pixel design. Another advantage over the pixel construction is the robustness, formability and mechanical flexibility of the sensor surface.
    The embodiment variant with luminescence waveguide is therefore particularly advantageous because it also allows a very high temporal resolution, ie, that even extremely short light signals can be measured correctly and that it is possible to vary the intensity of light signals with a high modulation frequencies and Recognize this modulation frequency in the signals of the sensor surface. It is thus better than with other sensor principles possible to code light signals and to distinguish them from disturbing ambient light signals. 8 • I * ··· · ··· * * »» * * * · J 460
    In an advantageous embodiment, the light coming from the light sources 3 is coded, typically by characteristic fluctuations of the light intensity, so that it can be recognized by the data processing system on the basis of the measured signals, from which light sources 3 a signal originates {resp. in the case of shading 3.1 is missing). For example, the light sources 3 can be switched on and off with a characteristic (high) modulation frequency. However, it is also possible, for example, to turn on the individual light sources 3 in turn only one at a time for a short period of time and then switch them off again, so that only a single light source illuminates at a time. Knowing which light source 3 " is in line " For example, the data processing system can thus assign signals that are formed by shadowing 3.1 to specific light sources 3. This makes it quite possible, based on logical evaluations for the data processing system, to differentiate and to locate several shading parts 6 which are located at the same time on the display surface.
    Likewise, it is advantageous (as is known per se from WO 2010/121279 A2 discussed above) to code the light emitted by the luminous pointer to the display surface 1 and thus also to the sensor surface 2. In any case, this coding should contain identification information for the luminescent pointer, for example in the form of a modulation frequency assigned only to this luminescent pointer. By this identification information, the luminous pointer becomes distinguishable from the light sources 3, and it becomes possible to use a plurality of luminous hands simultaneously, and the data processing system " white " optionally, which measurement signal originates from which luminous pointer. However, it is also advantageous and quite possible to cause the light intensity of the light signal emitted by a luminous pointer to fluctuate in defined (due to their rapidity for the human eye not recognizable) pulse sequences, whereby certain pulse 9 ··· ♦ A character coding is subsequently assigned, so that letters and other characters can be communicated to the data processing system by the luminescent pointer via the sensor surface 2. Furthermore, it is advantageous to code differently the different lines of the cross-sectional area 4 of the light beam emitted by the luminous pointer. This is exactly recognizable by the data processing system, in which rotational position is the luminescent pointer and this information is thus a character content can be assigned. In particular, the rotation of a picture element on the display surface can be controlled by the rotation of the pointing device.
    A further advantageous embodiment is the determination of the total intensity of the electrical signal caused by the luminous pointer in the sensor surface. When the luminescent pointer is moved toward or away from the display surface, the resulting widening of the light beam changes the resulting electrical signal so that information about the distance and changes in the distance of the luminous pointer from the display surface can be obtained. This information can in turn be understood as an input for the data processing system and a character change can be assigned to a defined change. In particular, a change in size of one or more picture elements on the display surface can thus be initiated when the distance between the display surface and the luminous pointer changes.
    The erfindungsgeraäße input device is thus able to fulfill previously unattained many functions at the same time, without itself being expensive and / or complicated.
    In an advantageous further development of the invention, the shading part 6, which can be moved by a person using the input device to the display surface 1, contains a light source which emits light which is detectable by the sensor flat 2 and also by an encoding (such described above with reference to the light sources 3 and the luminous pointer. It is at least identifiable, that is, among several Such parts 6 is clearly recognizable. With a shading part 6, for example, one can draw or write on the display surface by the data processing system, the path of motion, which measures it for the part 6, color. By the unique identifiability of several different shading parts 6, for example, the trajectories of individual parts 6 can always be represented by associated individual colors.
    In a further advantageous development shading parts 6, as previously described with reference to the luminous pointer, by means of coded fluctuation of the light intensity, also selectable characters or status information "send out". and so inform the data processing system. Continuing with the aforementioned example, this makes it possible, for example, to make the font color, which is assigned to a shadowing part by the data processing system, switchable.
    It is advantageous to provide a shading part 6, which includes a light source, with a touch switch, so that it is adjustable that the part emits light only when it rests on the display surface.
    The invention provides simple, hitherto display-only display surfaces of data processing systems that can be upgraded to serve as a graphical input device for a data processing system, while offering an impressively high number of useful functions while remaining cost-effective, handy and robust.
    Within the scope of the inventive concept, it is possible for the light sources 3 to each emit a single, linear light beam (instead of a "flat" light beam), and the direction in which the light beam is emitted in a close to the display surface and the display surface parallel 11
    To swing surface. The pivoting can be done for example by means of a rotating mirror, or by means of a reflective surface which is cyclically moved. The control of the pivoting movement should be linked to the data processing system, so that the data processing system always "knows" in which direction the light beam is currently lighting. Thus, the temporal resolution capability of the signals coming from the sensor surface 2 can already be recognized by the data processing system in which angle sectors of the area illuminated by a light source 3 there is a shading part.
    Instead of attaching the light sources 3 directly to the user-facing side of the plane of the display surface 1, they can also attach behind this level or at a completely different location and light and / or mirror the light on the user-facing side of the display surface 1 to lead.
    Likewise, it is also possible to arrange the sensor surface on and / or the sensor surface 2 on the side of the display surface 1 facing away from the user and to guide the light from the light sources 3 through mirrors through the plane of the display surface.
    The latter two options, especially for exposed display surfaces, can bring advantages, especially with regard to the protection of sensitive parts, from damage caused by soiling and improper contact.
    In a particularly advantageous embodiment for computer games, the luminescent pointer, ie the device which is in the hand of a user and emits a light beam to the display surface 1 and the sensor surface 2, is equipped with inertial sensors, ie linear and / or rotational acceleration sensors whose measurement results are sent to the data processing. Thus, information about the movements of the illuminated pointer are then also to the data 12
    * * · · * · · J 460 communicable if the light beam emitted by the luminescent pointer does not hit the sensor surface. Whenever the luminescent pointer hits the sensor surface, absolute position data (and not just position change data) can be calculated. 13
    权利要求:
    Claims (12)
    [1]
    «· · ····························································································································································································································· Information to a data processing system, wherein a related to the data processing system, position sensitive optical sensor surface (2), which is adapted to the position of the intersections of its surface with a cross-sectional area (4) of a light pointer emitted by a light pointer to de-tectate a display surface (1) for the data processing system runs around, characterized in that extends to the user side of the display surface (1) to this parallel light curtain whose optical detector is the sensor surface (2).
    [2]
    2. Apparatus according to claim 1, characterized in that the cross-sectional area of the light beam of the light pointer is formed by a plurality of lines and that the dimensions of this cross-sectional area project beyond both the display surface (1) and on the sensor surface (2).
    [3]
    3. Apparatus according to claim 1 or claim 2, characterized in that the sensor surface (2) is a film made of an organic material having mutually spaced tapping points (2.1), of which electrical signals are readable whose relative size is dependent on each other How far are the individual tapping points (2.1) from the point of impact of a signal in the sensor surface (2) generating light signal removed.
    [4]
    4. Apparatus according to claim 3, characterized in that the sensor surface 2 is formed by a layer composite of a photoelectric surface with flat connection electrodes, wherein at least one connection electrode has a significantly high ohmic resistance in its circuit, so that 14 • · ·· ♦ · « ································································································································································································································ (2.1) tapped to this electrode electrical signal is significantly reduced by the ohmic resistance in the flat terminal electrode in dependence on the distance of the connection points to the point at which a signal is generated.
    [5]
    5. Apparatus according to claim 3, characterized in that the sensor surface (2) is formed by a luminescence waveguide and the spaced-apart tapping points (2.1) are small-area photoelectric sensors.
    [6]
    6. Device according to one of claims 1 to 5, characterized in that the light for the light curtain comes from a plurality of light sources (3) which light from different sides on the side facing the user on the display surface (1) away.
    [7]
    7. The device according to claim 6, characterized in that the light emitted by different light sources (3) is individually coded for the respective light source, preferably by one for the respective light source (3) individual frequency of the fluctuation of the intensity of the emitted light.
    [8]
    8. Device according to one of claims 1 to 7, characterized in that the luminous pointer to the display surface (1) and thus also to the sensor surface (2) emitted light is encoded, preferably by characteristic pulse sequences.
    [9]
    9. Device according to one of claims 1 to 8, characterized in that it comprises a part (6) which can be moved by the user to the display surface (1), wherein the part (6) light from the light sources (3) partially shaded by the sensor surface (2) and wherein the part (6) itself emits light which is detek-tierbar by the sensor surface (2). 15 • 0 J 460
    [10]
    10. The device according to claim 9, characterized in that the device comprises a plurality of parts (6), wherein different parts (6) emit differently coded light signals.
    [11]
    11. Device according to one of claims 6 to 10, characterized in that the light sources (3) each emit a single, linear light beam and that the direction in which the light beam is emitted in a close to the display surface and parallel to the display surface area swings.
    [12]
    12. Device according to one of claims 1 to 11, characterized in that the luminescent pointer, that is, the device which is in the hand of a user and a light beam on the display surface (1) and thus on the sensor surfaces (2) emits with Inertial sensors, so linear and / or rotary acceleration sensors is equipped, the measurement results are sent to the data processing. 16
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    法律状态:
    2019-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20190210 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA173/2012A|AT512461B1|2012-02-10|2012-02-10|DEVICE FOR ENTERING INFORMATION TO A DATA PROCESSING PLANT|ATA173/2012A| AT512461B1|2012-02-10|2012-02-10|DEVICE FOR ENTERING INFORMATION TO A DATA PROCESSING PLANT|
    CN201380008429.9A| CN104106029A|2012-02-10|2013-01-21|Device for entering information into a data processing system|
    PCT/AT2013/050017| WO2013116883A1|2012-02-10|2013-01-21|Device for entering information into a data processing system|
    EP13709729.1A| EP2812780A1|2012-02-10|2013-01-21|Device for entering information into a data processing system|
    US14/377,741| US20160026269A1|2012-02-10|2013-01-21|Device for entering information into a data processing system|
    JP2014555894A| JP6096222B2|2012-02-10|2013-01-21|Device for entering information into a data processing system|
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