EP1862001A2 - Disposition pour réaliser une vidéoconférence - Google Patents

Disposition pour réaliser une vidéoconférence

Info

Publication number
EP1862001A2
EP1862001A2 EP06723442A EP06723442A EP1862001A2 EP 1862001 A2 EP1862001 A2 EP 1862001A2 EP 06723442 A EP06723442 A EP 06723442A EP 06723442 A EP06723442 A EP 06723442A EP 1862001 A2 EP1862001 A2 EP 1862001A2
Authority
EP
European Patent Office
Prior art keywords
location
subscriber
participants
participant
positions
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Withdrawn
Application number
EP06723442A
Other languages
German (de)
English (en)
Inventor
Miriam Noemi Valenzuela
Carlos Alberto Valenzuela
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1862001A2 publication Critical patent/EP1862001A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
    • H04N7/144—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display camera and display on the same optical axis, e.g. optically multiplexing the camera and display for eye to eye contact

Definitions

  • the invention relates to an arrangement for carrying out a video conference between a location A and a location W.
  • Telephone or video conferencing takes place when face-to-face meetings are eliminated because of the associated high travel costs and the high time required. Studies have shown, however, that an at least one personal meeting is conducive to the development of a business relationship. The closer a conference call to a personal meeting is, the more conducive it is to sharing information and building a personal relationship between the conference participants. Mutual trust is promoted, negotiations can be conducted more successfully.
  • Telephone conferences are perceived as insufficient for many occasions, since the personal impression of the person in the conversation in sound and image transmits values beyond the spoken word that are lost in telephone conferences. It is beneficial for building trust to be able to perceive the reactions of the other, including the body language.
  • Conventional video conferencing systems consist of a camera at each of the interconnected locations and a display screen for each connected site. Depending on the size of the playback, it is more or less possible for such systems to recognize the reactions, facial expressions etc. of the connected subscribers.
  • the atmosphere of conversation also does not come close to a personal meeting, since direct interaction between the participants, for example through eye contact, is not possible.
  • direct interaction between the participants for example through eye contact, is not possible.
  • all participants feel at the other site viewed, in another line of sight feels nobody looked at and addressed.
  • Direct addressing of a certain person is possible only by name, but not by eye contact. For a videoconference with two locations, each with one participant, this may still work, with several participants excluded.
  • the object of the present invention is to provide an arrangement for conducting a videoconference, which makes it possible to create an atmosphere that comes as close as possible to an actual meeting, and in particular Eye contact or face contact between at least some participants is possible.
  • the object is achieved by an arrangement for carrying out a videoconference between a location A and at least one location W 1 at each of which positions are provided for participants solved. At least
  • the image generating means are arranged such that for at least one subscriber position at the location A and at least two representations of subscriber locations of the location W at the location A associated with different image generating means in the horizontal angle range of ⁇ 20 ° to the connecting lines between the subscriber location location A and the representations of the subscriber positions of the location W at the location A, the image generating means is arranged, which is assigned to the respective subscriber position at the location W.
  • display means are provided at the location W for each of the location A imaging means, with each user position at the location W associated with the rendering means representing the image of the imaging means associated with the user location.
  • eye contact or eye-to-eye contact, it should be understood that a participant in a videoconference may turn to another participant in another location for the purpose of having eye contact with the first participant.
  • Facial contact or face-to-face contact is understood to mean that a participant in a videoconference is another participant in another
  • location A should be the location where pictures are taken. These images are then transferred to the playback location W and played there.
  • the arrangement according to the invention can be used unidirectionally, bidirectionally or multidirectionally in more than two locations. Each location can have the function of a recording or / and a playback location.
  • This technique makes it possible to save image generation means and not to create a separate perspective for each participant in the location W.
  • Two subscribers at the location W to which images of the location A are transmitted, and the subscribers at the location A taken up may be placed so that only one image forming means is used for the two participants of the location W.
  • the arrangement of the participants and the imaging means must meet the geometrical requirements described above. As a rule, this results in the image generating means being arranged between the representations of the participants of the location W at the location A.
  • a participant of the location A who looks at the representation of one of the two participants of the site W, then looks narrowly past the camera. Both participants at location W receive the same image. They would both feel viewed without further information.
  • further information eg.
  • the imaging means are located in the horizontal at an angle range of -10 ° to + 10 ° to the connecting line between a subscriber position at the location A and a representation of a subscriber position of the location W at the location A as defined above.
  • the inner angle range of + 3 ° to -3 ° can be excluded for improved facial contact.
  • One or more participants may be placed at a subscriber location. In the case of several subscribers, although only one assignment of the viewing direction to the group is achieved, this may be sufficient in the context of the meeting, and moreover corresponds to the situation of a normal, personal meeting in the presence of many persons. A clear, unambiguous view relationship can not always be established.
  • reproducing means are arranged with which the recorded or otherwise generated images of the location A can be reproduced.
  • Each perspective recorded or generated in this way is assigned to one or more participant positions at the location W.
  • Each participant in the location W is only to see the perspective, ie the reproduction, which is assigned to his position.
  • the ability to see all or some of the other renderings does not have to be completely ruled out. It is enough if the associated playback is easier to see than the others, eg. B. by a more favorable arrangement, better quality, etc.
  • Each participant will automatically watch the playback that is best recognizable for him. Are the participants z. B.
  • each participant will have a natural tendency to look at the arranged in front of him playback, which he can rotate without the head and view at approximately right angles.
  • the reproduction means can also be screened from one another by appropriate precautions, so that only one display means is actually visible.
  • Such precautions may physical type such.
  • screens or optical lenses such as fresnel lenses.
  • Another alternative is polarization filters or optical filters with angle-dependent viewing windows (eg shadow masks, frequency-selective filters, etc.), as they are eg. B. from stereoscopic and autostereoscopic playback means are known.
  • Such filters allow multi-channel reproduction of different images on a display means, usually a screen. For several or all participants then the playback area is the same. The possibly multiple representations of the participants of the other location can thus be displayed at approximately the same position.
  • the different images are then displayed as a function of the viewing angle, so that although several participants look at the same screen, but still everyone sees the associated perspective.
  • Replay means may e.g. One or more normal television or plasma screens or projections. However, it can also be one or more screens with multi-channel playback and corresponding filters. It is particularly advantageous if the transferred images show the participants of the other location in approximately life-size, with about 80% of the life size is still considered lifelike. For this purpose, a wall of the respective location can be used as a display area.
  • the positioning of the representations of subscriber positions can be carried out in such a way that a plurality of representations of a subscriber position of the location W are provided at the location A, the different subscriber positions of the location A are assigned and positioned so that the angular ranges around the extended connecting lines between at least two subscriber positions of the location A and the representations of the subscriber position of the location W associated with these subscriber positions form an intersection.
  • the image generating means which is assigned to the subscriber position of the location W represented at the location A, can be arranged within the intersection.
  • the different representations of a subscriber position of the location W for the different subscriber positions at the location A can also be advantageously generated by multi-channel reproduction and angle-dependent filters.
  • For the participants of the location A can thus represent the representations of the participants of the other site at about the same position and thus the above-mentioned condition of the intersection in a simple and advantageous manner to be met. From each defined subscriber position at location A, however, only the representations of the participants at location W assigned to it can be seen by the filter.
  • the imaging means with which the participants are recorded at location A may be cameras.
  • an imaging agent in the sense of this Patent application also consist of multiple cameras to cover a larger angular range or to provide better image quality. This can be done by a panoramic arrangement of cameras or spatially far separated placement of participants in the shooting location or for more detailed shots (eg close-ups) by a corresponding arrangement of the cameras whose images are then assembled together for the playback location.
  • the recording fields of the cameras do not intersect or only in insignificant places. But it is also possible to create recordings for playback in a different way. For example, further perspectives can be created by calculating from a digital recording with a camera. The amount of data to be transferred from location A to location W is thereby significantly reduced. The calculation of further perspectives of the location A for virtual camera locations can be made at the location W.
  • the imaging means can be arranged - real as well as virtual - at an angle of up to 25 ° in the vertical upward and -5 ° downward offset to the viewing direction.
  • viewing direction is understood to mean the connecting line or plane between the average eye height of the participants at the recording location and the average eye level of the representations of the participants in the playback location represented at the recording location Participants of Site A.
  • the representations of the participants of the replay site or the replay means may be placed at natural eye level of the subscribers at the repository location
  • the imaging means may be placed in an angular range above or below without colliding with the replay means when backprojecting small cameras proved that can be hidden particularly well when they are slightly above the eye level shown, thus at an angle to the line of sight and thus outside the main part of the image s can be placed.
  • the representations of the participants of the site W at the site A serve as spatial reference points for the participants of the site A. They must be able to turn to a participant of the site W in the form of its representation at the site A.
  • the videoconferencing will be bidirectional in both directions, that is, both locations will be simultaneously recording locations A and playback locations W, respectively.
  • the representations of the participants of the other Location are then each the transferred images.
  • a unidirectional conference can be constructed, in which only the participants in one location see quasi-continuous images of the other site, while the representations of these participants at the other location z. B. can be still images.
  • the representations may be simple, still images, or any other kind of placeholder of the participants, merely to ensure that the participants at location A have reference points to which they can see to view a participant.
  • a video conference may also be performed between more than two locations. At least one location is transmitted to two or more other sites so that at least unidirectionally Augenl. Face contact is possible. If this applies to all locations, each site will have multiple locations A, where images for different locations will be recorded, and multiple locations W, where the captured images will be displayed from multiple locations.
  • a special case of the arrangement according to the invention is a videoconference with only one imaging means at location A.
  • A are then arranged so that the image forming means in the horizontal in
  • Angle range of -10 ° to -3 ° or + 3 ° to + 10 ° to the connecting lines between the subscriber positions at the site A and the representations of the subscriber positions of the site W at the location A is arranged.
  • the field of view of an imaging agent can be extended in many subscriber positions at the recording location by a known in the art panoramic arrangement of multiple cameras. Likewise, a stereoscopic camera arrangement for taking three-dimensional images for one or more imaging means is possible. The playback means must then be selected accordingly to allow a three-dimensional rendering.
  • Figures 1 A to D show possible arrangements for seven subscriber positions at a recording location A and six subscriber positions at a playback location W;
  • Figure 2 shows a possible arrangement for 15 subscriber positions in two
  • Figure 3 shows a possible arrangement for a videoconference between three locations with two times four and one time seven subscriber positions
  • FIG. 4 shows possible arrangements for videoconferencing with two
  • Figure 5 A and B shows the determination of the positions of the imaging means in a multi-representation arrangement of each participant of site W at site A;
  • Figure 6 A and B show the determination of the positions of the image generating means in an arrangement with multiple representations of each participant of the location W at the location A in a slightly different arrangement from those in Figures 5 A and B;
  • Figures 7A-C show alternatives of bidirectional construction using multi-channel playback with filters;
  • FIGS. 8A to C show different alternatives for display means at the location W.
  • FIG. 1 shows a possible arrangement of subscriber positions and image generation means at location A and two alternative reproduction possibilities at location W.
  • FIG. 1A shows a recording location A with 7 possible participant positions TA.
  • remote site W which is to establish the videoconference, there are 6 subscribers represented at location A by representations RW.
  • cameras K are arranged as image generating means.
  • the cameras are respectively assigned to the two adjacent subscriber positions at the playback location W, which are represented at the recording location A by the corresponding representations RW.
  • the camera K which is assigned to the subscriber position of the location W belonging to the representation RW, is located in an angle range of -10 ° to + 10 ° about the connecting line between the subscriber position TA and each representation RW. This applies to all participant positions between which face or face contact should be possible.
  • FIG. 1B shows a possibility of reproducing the images taken at location A at location W.
  • Separate screens B for each two users are used as display means.
  • the total of 6 participants TW at location W is paired with one camera each.
  • the two left participants assigned to the left in Figure 1A camera whose images are displayed on the left in Figure 1 B screen.
  • the two left participants only see this screen. Although theoretically they can see the neighboring screen, in practice this possibility is eliminated by distance and viewing angle.
  • the middle participant at location A now addresses the far left participant at location W, he turns to its representation at location A. He is thereby recorded by all three cameras, where he just past the leftmost, the targeted participants assigned camera. The other cameras clearly mark it on the side.
  • the two participants placed at location W on the left see the image of the left camera.
  • the middle participant of site A takes face contact with them. Which of the two participants at location W is addressed, results in the vast majority of cases from the broader context.
  • the middle and the right participant pairs at the location W see the pictures taken with the cameras assigned to them which laterally point the middle participant of the location A. It is clear to them that they are not addressed, but the participant pair sitting outside to their right.
  • FIG. 1C As an alternative to the arrangement for the location W shown in FIG. 1B, the arrangement shown in FIG. 1C can also be selected. A large screen B is selected for all participants, in which the images recorded with the three cameras are played in parallel in multi-channel playback. By an angle-selective
  • Figure 1 D shows an arrangement at the recording location A, in which there are active participant positions TA and passive participant positions PTA.
  • the active participant positions TA can - depending on the equipment at the or the other locations - establish at least unidirectional eye or face contact.
  • the passive participant positions PTA can participate in the conference and, with appropriate alignment of the cameras K, are also visible in the image at the remote site (s) W, but can not make eye or face contact with the participants of the other sites.
  • Such a structure is useful when z. For example, translators or secretaries attend a conference.
  • the actual call partners are placed at the subscriber positions TA and can make facial or eye contact with the participants at the appropriate positions at the other site or locations.
  • the participants in the PTA positions however, only join the conference and receive all the information they need to perform their tasks.
  • the making of face or eye contact with the participants of the other sites is due to the passive Participation not required. As a result, the technical complexity and the amount of data to be transmitted can be reduced.
  • FIG. 2 shows a possible arrangement of subscribers at the location A.
  • the subscriber positions TA are arranged in two rows. At the corresponding location W, this is the same, so that the representations RW of the participants there at location A are likewise arranged in two rows one behind the other. Further, at the location A, three image forming means K1, K2 and K3 are arranged.
  • the image generating means receives the participants of the site A.
  • the image generating means are assigned to specific subscriber positions at the location W, in the present case the subscribers, which are represented at the location A by the representations RWK1, RWK2 and RWK3 of the first row in pairs right, center and left.
  • the image generating means are associated with the second row subscriber locations at the location W, which are represented at location A by the representations shown in the second row.
  • the assignment is shown in the figure by the angular ranges shown.
  • the image generating means K1 and K2 are arranged which correspond to the subscriber positions RWK1 and RWK2 at the location W assigned.
  • the participants in the location W which are represented at the location A by the representation RWK1 or RWK2, see at the location W the image generated by the image generation means K1 or K2.
  • the subscribers of the second row at location W whose representations at location A are arranged in the predefined angular range behind RWK1 or RWK2, also see the image generated by image-generating means K1 or K2 at location W. Facial contact can be established with all participant positions for which the above conditions apply, ie also for the participant positions located behind RWK1 or RWK2 in the specified angular range. As with a personal meeting, the participants will know who exactly is being addressed from other circumstances.
  • Figure 3 shows a videoconferencing arrangement for connecting three sites. From the point of view of location A, the representations of 4 participants each of two locations W1 and W2 are located in the room. The participants in locations W1 and W2 are in turn associated with imaging means K at location A, in pairs, so that a total of 4 imaging means K are located at location A. The two image forming means left in the figure transmit images to the location W1, the two image forming means shown in the figure transmit images to the location W2. Facial contact is again possible with the participant positions for which the conditions described above apply.
  • the connecting line between the average subscriber position TA at location A and the subscriber position on the left-hand side of location W2 and the angle range from -20 ° to + 20 ° are plotted, in which the image generation means lies for the subscriber position with which face contact is possible. that is associated with the relevant subscriber location of the remote site.
  • FIG. 4 arrangements are shown in which only two subscriber positions are provided at each location, with one camera being sufficient to accommodate both subscribers.
  • two and in Figure 4B three locations are interconnected.
  • FIG. 4A shows at location A two subscriber positions TA and two representations RW of subscribers at location W as well as a camera K. To establish face contact between all subscribers, the positions are arranged so that the camera is within an angle range of ⁇ 10 ° to the connecting line between each Subscriber position TA at location A and each representation RW is, with the inner angle range of ⁇ 3 ° should be excluded.
  • the two left representations RW1 represent the participants at the corresponding location W1.
  • the camera arranged between them picks up the images intended for these participants, which are transmitted to location W1.
  • the images transmitted from the location A are recorded with the camera arranged between the representations RW2.
  • FIG. 5 shows an arrangement with six participants at location A and four participants at location W.
  • location A At location A are several representations RW1 (RW1, RW1 ', RW1 ") of the associated subscriber position at the location W.
  • the subscribers TA at the location A are each assigned pairwise representations of the four subscriber positions at the location W.
  • FIG. 5A shows the positioning of the cameras C in order to be able to achieve facial contact between all participants in such an arrangement.
  • the left participant pair considers the left representations RW1 of the four participants of the location W
  • the middle participant pair the middle representations RW1 'and the right participant pair the right representations RW1 " is assigned to the left participant pair of the location W, which is represented at the location A by the representations RWB1
  • the recorded images are then combined at the location W to representations of the participants of the site A, that the participant pair RWB1 sees the six participants TA in the right order.
  • FIG. 5A now shows the arrangement of the cameras, so that the images recorded by the different cameras can be combined so that face contact can be achieved between all participants.
  • the representations of a subscriber location of the location W are positioned such that the angular ranges around the extended connecting lines between the associated subscriber locations of the location A and the representations of the subscriber location of the location W associated with those subscriber locations
  • the intersections are shown two-dimensionally in Figure 5A, but in reality they are three-dimensional intersections, since, as explained above, angle ranges in both horizontal and vertical directions are given, which fulfill the conditions for eye or face contact
  • the cameras must then be arranged within the intersections.
  • FIG. 5B shows by way of example the basis of the left subscriber pair of location A.
  • the position of the camera C1 of Figure 5A is to be determined.
  • the camera C1 is assigned to the left-hand subscriber pair at the location W which, for the subscribers TA1 and TA2, is represented by the two left representations RWB1 of the left group of representations at site A.
  • an angle range of a maximum of ⁇ 20 ° in the horizontal about the connecting line between the subscriber positions and the representations is drawn by each of the participants TA1 and TA2.
  • FIG. 5B the angle ranges are traversed around the left of the representations RWB1 and drawn in dashed lines around the right of the representations.
  • the resulting intersection is hatched.
  • the corresponding intersection for the position of the camera C2 from FIG. 5A, which is assigned to the representation or participant pair RWB2 is shown dotted. For better clarity, the angular ranges for this pair are not completely drawn.
  • FIG. 6 shows a similar structure as FIG. 5 for six participants at location A and three participants at location W.
  • pairwise representations of the participants of the site W are provided for the participants, ie three representations of each participant in the site W, grouped together into the groups RW, RW and RW Location W is provided with an imaging means B, which in the present case consists of only one camera
  • the imaging means B must be arranged in the representations or the participants in the location W associated with intersections to permit eye or face contact
  • the intersections are also for better understanding as the associated representation longitudinally or transversely hatched or dotted.
  • the representations marked with an arrow in Figure 6A represent the same subscriber position at the location W, for which the camera must be arranged within the intersection also marked with an arrow.
  • FIG. 6B shows, by way of example, the determination of the intersection with reference to the representation with an associated intersection in FIG. 6A. From each of the participant positions TA, an angle range of a maximum of ⁇ 20 ° in the horizontal is drawn around the connecting line between the participant positions TA and the associated representations. This means in FIG. 6B that, starting from the two right-hand subscriber positions, an angle range around the left representation of the group RW1 "is drawn, from the two middle subscriber positions around the left representation of the group RW1 'and from the two left subscriber positions around the left representation of FIG Group RW1. This results in the hatched cut surface.
  • the reference plane for the vertical angle range is intended to be the connection plane between the average eye level of the participants in the recording location and the average eye level of the representations of the participants of the playback location represented at the recording location.
  • Fig. 7 shows an example of a bidirectional structure using multi-channel reproduction with filters. Particularly advantageous is the use of multi-channel playback with filter, since it is possible with this technique to arrange several representations of one and the same subscriber position of the location W at approximately the same spatial position. This method is particularly suitable for the construction of connections with bi- or multidirectional face or eye contact.
  • Figure 7A shows the construction of a bidirectional face contact connection in which multi-channel display screens and corresponding filters are used for the display means at both locations 1 and 2.
  • the representations RS1 and RS2 of the locations 1 and 2 are displayed for the subscriber positions TS1 and TS2 at the locations 1 and 2 on these display means.
  • the individual subscriber positions TS1 and TS2 see the representations assigned to them by the viewing windows generated with the multi-channel reproduction and the corresponding filters.
  • As a reproducing means it is possible to use a common screen with multi-channel reproduction and filter.
  • FIG. 7C Another alternative arrangement is shown in FIG. 7C.
  • the faces G of the remote site participants are reproduced with multi-channel reproduction and corresponding filters.
  • the bodies of the remote participants as well as the background of the remote location can be reproduced with, for example, a simple, normal projection, if necessary on the entire area F.
  • FIG. 7C shows such a possible mixed form of playback means shown from the front.
  • the transferred images can show the participants of the other location in approximate life size.
  • a structure according to Figure 7 can be extended accordingly for connections with multidirectional face contact.
  • FIG. 8 shows further examples of possible arrangements of the reproduction means at the location W, in which a plurality of screens are used for each subscriber of the location A transmitted or for subgroups of the subscribers of the location A.
  • the screens are arranged in such a way that they are particularly easy to see by their associated participants TW.
  • FIG. 8A for example, three subscribers or three subgroups of the subscribers of the location A (RA1, RA2 and RA3) are shown on three screens each, which are assigned to different subscribers at the location W.
  • the associated assignments are identified by the same fill.
  • FIG. 8B shows a mixed form of reproduction means for the nearly life-size representation of the transmitted images RA of the participants at the location A.
  • the bodies of the participants RA and the background H are represented by simple projection and are the same for all viewers. However, the faces G of the participants RA are transmitted on different screens for the viewing participants in the other location in different perspectives.
  • Figure 8C shows another possible arrangement of the screens in a row.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne une disposition pour réaliser une vidéoconférence entre un emplacement A et au moins un emplacement W, le contact oculaire ou facial entre au moins certains participants étant possible. Sur l'emplacement A se trouvent au moins deux dispositifs d'imagerie pour réaliser des images des participants de l'emplacement A, ces dispositifs d'imagerie étant associés à différentes positions de participants de l'emplacement W, chaque position de participant de l'emplacement W ayant au moins une représentation optique. Les dispositifs d'imagerie sont disposés de telle sorte que, pour au moins une position de participant de l'emplacement A et au moins deux représentations de positions de participants de l'emplacement W associées à différents dispositifs d'imagerie, le dispositif d'imagerie est disposé dans une zone angulaire à l'horizontale ± 20° relativement aux lignes de liaison entre la position de participant de l'emplacement A et les représentations des positions de participants de l'emplacement W, ledit dispositif d'imagerie étant associé à la position de participant respective de l'emplacement W. Chaque position de participant de l'emplacement W est associée à un dispositif de restitution qui reproduit l'image du dispositif d'imagerie auquel est associée la position de participant.
EP06723442A 2005-03-16 2006-03-15 Disposition pour réaliser une vidéoconférence Withdrawn EP1862001A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005012132A DE102005012132A1 (de) 2005-03-16 2005-03-16 Anordnung zur Durchführung einer Videokonferenz
PCT/EP2006/002365 WO2006097287A2 (fr) 2005-03-16 2006-03-15 Disposition pour réaliser une vidéoconférence

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EP1862001A2 true EP1862001A2 (fr) 2007-12-05

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EP06723442A Withdrawn EP1862001A2 (fr) 2005-03-16 2006-03-15 Disposition pour réaliser une vidéoconférence

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US (1) US8310519B2 (fr)
EP (1) EP1862001A2 (fr)
JP (1) JP5162440B2 (fr)
DE (1) DE102005012132A1 (fr)
WO (1) WO2006097287A2 (fr)

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JP5162440B2 (ja) 2013-03-13
US8310519B2 (en) 2012-11-13
DE102005012132A1 (de) 2006-09-28
WO2006097287A3 (fr) 2006-11-02
WO2006097287A2 (fr) 2006-09-21
US20080192109A1 (en) 2008-08-14

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