WO2006033046A1 - Dispositif d'affichage commutable 2d/3d et procede de commande associe - Google Patents

Dispositif d'affichage commutable 2d/3d et procede de commande associe Download PDF

Info

Publication number
WO2006033046A1
WO2006033046A1 PCT/IB2005/052998 IB2005052998W WO2006033046A1 WO 2006033046 A1 WO2006033046 A1 WO 2006033046A1 IB 2005052998 W IB2005052998 W IB 2005052998W WO 2006033046 A1 WO2006033046 A1 WO 2006033046A1
Authority
WO
WIPO (PCT)
Prior art keywords
display device
display
mode
visual data
display mode
Prior art date
Application number
PCT/IB2005/052998
Other languages
English (en)
Inventor
Wilbert L. Ijzerman
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2006033046A1 publication Critical patent/WO2006033046A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/398—Synchronisation thereof; Control thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
    • H04N13/359—Switching between monoscopic and stereoscopic modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/361—Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background

Definitions

  • the invention relates to a method of driving a switchable display device which is arranged to display first visual data on a first portion of the display device, the first portion being in a first display mode, and to display second visual data on a second portion of the display device, the second portion being in a second display mode which is different from the first display mode.
  • the invention further relates to a switchable display device which is arranged to display first visual data on a first portion of the display device, the first portion being in a first display mode and to display second visual data on a second portion of the display device, the second portion being in a second display mode which is different from the first display mode.
  • the invention further relates to a computer program product to be loaded by a computer arrangement, comprising instructions to drive a switchable display device which is arranged to display first visual data on a first portion of the display device, the first portion being in a first display mode, and to display second visual data on a second portion of the display device, the second portion being in a second display mode which is different from the first display mode.
  • a first principle uses shutter glasses in combination with for instance a CRT. If the odd frame is displayed, light is blocked for the left eye and if the even frame is displayed light is blocked for the right eye.
  • Display devices that show 3-D without the need for additional appliances are called auto-stereoscopic display devices.
  • a first glasses- free display device comprises a barrier to create cones of light aimed at the left and right eye of the viewer.
  • the cones correspond for instance to the odd and even sub-pixel columns. By addressing these columns with the appropriate information, the viewer obtains different images in his left and right eye if he is positioned at the correct spot, and is able to perceive a 3-D picture.
  • a second glasses- free display device comprises an array of lenses to image the light of odd and even sub-pixel columns to the viewer's left and right eye.
  • the disadvantage of the above mentioned glasses-free display devices is that the viewer has to remain at a fixed position.
  • indicators have been proposed to show the viewer that he is at the right position. See for instance United States patent US5986804 where a barrier plate is combined with a red and green led. In case the viewer is well positioned he sees a green light, and a red light otherwise.
  • multi-view auto- stereoscopic display devices have been proposed. See for instance United States patents US60064424 and US20000912.
  • a slanted lenticular is used, whereby the width of the lenticular is larger than two sub-pixels. In this way there are several images next to each other and the viewer has some freedom to move to the left and right.
  • a drawback of auto-stereoscopic display devices is the resolution loss incorporated with the generation of 3-D images. It is advantageous that those display devices are switchable between a 2-D and 3-D mode, i.e. a single- view mode and a multi-view mode. If a relatively high resolution is required, it is possible to switch to the single- view mode since that has higher resolution.
  • switchable display device An example of such a switchable display device is described in the article "A lightweight compact 2-D/3-D autostereoscopic LCD backlight for games, monitor and notebook applications" by J. Eichenlaub in proceedings of SPIE 3295, 1998. It is disclosed that a switchable diffuser is used to switch between a 2-D and 3-D mode.
  • a switchable auto-stereoscopic display device is described in WO2003015424 where LC based lenses are used to create a switchable lenticular.
  • a graphical user interface comprises a background which is in single-view mode, i.e. 2-D mode and comprises a window which is in multi-view mode, i.e. 3-D mode. Moving the 3-D window from a first position to a second position means that the corresponding visual information is first displayed at a first portion of the display device and later on displayed at another portion of the display device.
  • the method comprises switching the display mode of the display device to the first display mode or the second display mode when a signal is received indicating that the first visual data is to be displayed on a third portion of the display device being different from the first portion of the display device. That means that during the movement the display device is in one mode only which may be either the first display mode or the second display mode. No fast switching is needed during movement, because the portion of the display device adjacent to the window, initially adjacent to the first portion, is in the same display mode as the window itself.
  • the first display mode and the second display mode differ in the number of views, i.e.
  • the first display mode corresponds to a first number of views and the second display mode corresponds to a second number of views whereby the first number of views and the second number of views are mutually different.
  • the first display mode and the second display mode are from a set of display modes comprising single- view mode and multi-view mode.
  • the first portion is in the single-view mode and the second portion is in the multi-view mode before the switching, and the display device is switched to the single- view mode when the signal is received.
  • the first portion is in the single- view mode and the second portion is in the multi-view mode before the switching, and the display device is switched to the multi-view mode when the signal is received.
  • the first portion is in the multi-view mode and the second portion is in the single- view mode before the switching, and the display device is switched to the single- view mode when the signal is received.
  • the first portion is in the multi-view mode and the second portion is in the single- view mode before the switching, and the display device is switched to the multi-view mode when the signal is received.
  • the method according to the invention further comprises switching the display mode of the third portion to the first display mode and switching a further portion of the display device to the second display mode after a predetermined time after the reception of the signal.
  • the method according to the invention further comprises switching the display mode of the third portion to the first display mode and switching a further portion of the display device to the second display mode after a predetermined time after the reception of the signal.
  • the switchable display device is arranged to switch the display mode of the display device to the first display mode or the second display mode when a signal is received indicating that the first visual data is to be displayed on a third portion of the display device being different from the first portion of the display device. It is a further object of the invention to provide a computer program product of the kind described in the opening paragraph resulting in less visible visual artifacts during movement of a window across the display device.
  • the computer program product after being loaded, provides said processing means with the capability to switch the display mode of the display device to the first display mode or the second display mode when a signal is received indicating that the first visual data is to be displayed on a third portion of the display device being different from the first portion of the display device.
  • Fig. 1 schematically shows the movement of a 3-D window across a 2-D background
  • Figs. 2A-2C schematically show the method according to the invention
  • Fig. 3 schematically shows an embodiment of the switchable display device according to the invention.
  • Fig. 1 schematically shows the movement of a 3-D window 102 across a 2-D background.
  • Fig. 1 schematically shows a switchable display device 100 according to the prior art. E.g. as disclosed in US 6,137,456 or US 6,157,351 or US 6,285,368.
  • a background image 104 is displayed in 2-D mode and a window 102 in 3-D mode.
  • the switchable display device 100 according to the prior art comprises an optical directing unit for transferring the generated light in dependence of an actual view mode of a portion of the display device.
  • switching from a first state into a second state or reverse is relatively slow. In fact that is not a problem as long as the window 102 is stationary, i.e.
  • the visual data corresponding to the window 102 is continuously displayed on the same portion of the display device.
  • visible artifacts may occur.
  • New driving values for the light generating unit of the display device are computed in correspondence to the intermediate and eventually end position of the window 102.
  • the elements of the optical directing unit are controlled in correspondence to the intermediate and eventually end position of the window 102.
  • the physical properties of the elements of the optical directing unit are such that actually switching from a first display mode to a required display mode may be out of phase related to the provided driving values.
  • first portion 106 of the display device 100 and a second portion 108 of the display device 100 clearly show artifacts.
  • the provided driving values for the light generating unit correspond to 2-D mode while the local elements of the optical directing unit are still in 3-D mode.
  • the provided driving values for the light generating unit correspond to 3-D mode while the local elements of the optical directing unit are still in 2-D mode.
  • Figs. 2A-2B schematically show the method according to the invention.
  • Fig. 2 A schematically shows a switchable display device 300 according to the invention.
  • the switchable display device is arranged to display first visual data 102 on a first portion of the display device, the first portion being in a multi-view mode, and to display second visual 104 data on a second portion of the display device, the second portion being in a single- view mode. That means that during a particular time interval the first portion 102 of the display device 300 is in another view mode than the second portion 104 of the display device 300, i.e. two different view modes simultaneously.
  • the display device 300 receives an update signal, indicating that the first visual data is to be displayed on a third portion of the display device being different from the first portion of the display device.
  • the entire display device 300 switches to the single-view mode. This is indicated in Fig. 2 B.
  • the entire display device 300 switches to multi-view mode.
  • Fig. 2C schematically shows that a further portion 105 corresponding to the window is in multi-view mode while the rest of the display device 300 is still in single- view mode.
  • first visual data is to be displayed on a further portion of the display device being different from the first portion of the display device.
  • the display device 300 is switched into single- view mode.
  • the spatial resolution in single-view mode is higher than in most view mode, giving more freedom in putting the window at intermediate positions during movement.
  • a graphics border may be drawn around the window.
  • Fig. 3 schematically shows an embodiment of the switchable display device 300 according to the invention.
  • the switchable display device 300 is arranged to switch between view modes.
  • the single- view mode also called 2D view mode only one image is generated.
  • the single- view mode a single view is generated which can be viewed in a viewing cone with a relatively large viewing angle.
  • the multi-view mode also called 3-D view mode
  • multiple images are generated. These images can be viewed in different viewing cones, each having a viewing angle which is substantially smaller than the said viewing cone.
  • the number of views in the multi-view mode is 9.
  • the viewing cones are such that a viewer which is positioned appropriately relative to the display device 300 is presented with a first view to his left eye and a second view, which is correlated to the first view, to his right eye resulting in a 3-D impression.
  • the switchable display device 300 is arranged to switch completely or only partially, i.e. the entire display device 300 is in the single-view mode or the multi-view mode, or alternatively a first portion of the display device 300 is in the single- view mode while a second portion is in the multi-view mode. For instance, most of the display device is in single- view mode, while a window is in multi-view mode or vice versa.
  • the display device 300 comprises: a receiving unit 302 for receiving an information signal which is provided at the input connector 306, the information signal comprising visual data; a light generating unit 308 for generating light on basis of the information signal; an optical directing unit 310 for transferring the generated light in dependence of an actual view mode of the display device or actual view mode of a portion of the display device; an image rendering unit 312 which is arranged to compute driving values to be provided to the light generating unit 308 on basis of the information signal as received by the receiving unit 302; and a detection unit 304 for detecting the actual view mode of a portion of the display device.
  • the information signal has a format comprising structured elements having respective luminance values and optionally corresponding distance indicators.
  • the information signal is a video signal with an RGBD format.
  • luminance is represented by the RGB components.
  • the D (depth) component corresponds to distance indicators.
  • the YUVD format is used to provide the display device 300 with input.
  • the information signal may be a broadcast signal received via an antenna or cable but may also be a signal from a storage device like a VCR (Video Cassette Recorder) or Digital Versatile Disk (DVD).
  • VCR Video Cassette Recorder
  • DVD Digital Versatile Disk
  • the light generating unit 308 comprises a matrix of light generating elements which are modulated on basis of a driving signal which is based on luminance component of the visual data.
  • a driving signal which is based on luminance component of the visual data.
  • the light generating unit 308 is based on an LCD.
  • the optical directing unit 310 may be based on controllable parallax barriers.
  • controllable is meant that the amount of light absorption is not fixed. For instance in a first state the parallax barriers are turned off, meaning that they do not absorb the generated light. In that first state the switchable display device 300 is in the single- view mode. In a second state the parallax barriers are turned on, meaning that they absorb the light in certain directions. In that second state the switchable is device 300 is in the multi-view mode.
  • the position of the parallax barriers is controllable, enabling directing light in response of eye tracking.
  • the optical directing unit 310 is based on lenses.
  • the optical directing unit 310 optionally comprises a diffuser.
  • the optical directing unit 310 comprises switchable lenses or comprises means which are arranged to cooperate with the lenses arranged to compensate for the effect of the lenses.
  • the image rendering unit 312 is arranged to compute driving values to be provided to the light generating unit 308 on basis of the information signal as received by the receiving unit 302.
  • the driving values may be directly based on luminance values of the information signal. That means that there is a one-to-one relation between luminance values as received and output values of image rendering unit 312. In that case the image rendering unit is simply passing values. However, there may be a difference in image resolution between the image data as received and the resolution of the image display device. In that case an image scaling is required.
  • the image data as received comprises a single- view and corresponding depth values but a multi-view mode is required. In that case a number of additional views must be computed on basis of the single- view as received and the corresponding depth values, i.e. distance indicators.
  • An example of this type of rendering are described in the article "Synthesis of multi viewpoint images at non-intermediate positions" by P. A. Redert, E. A. Hendriks, and J. Biemond, in Proceedings of International Conference on Acoustics, Speech, and Signal Processing, Vol. IV, ISBN 0-8186-7919-0, pages 2749- 2752, IEEE Computer Society, Los Alamitos, California, 1997.
  • the rendering is as described in "High-quality images from 2.5D video", by R.P. Berretty and F.E. Ernst, in Proceedings Eurographics, Granada, 2003, Short Note 124.
  • the detection unit 304 is arranged to detect the actual view mode for each sub-' pixel, i.e. independently controllable light generating element of the light generating unit 308 on basis of the information signal as provided at the input connector 306. That means that the switchable display device according to the invention is arranged to receive view mode information and the visual data by means of the same input connector 306. Preferably the detection is based on the values of the corresponding distance indicators in the information signal. If the values are in a first predetermined range, then the corresponding sub pixels have to be rendered in single- view mode. If the values are in a second predetermined range, than the corresponding sub pixels have to be rendered in multi-view mode.
  • the detection unit 304 comprises a control interface 314 via which a view mode signal is provided independent of the information signal comprising the visual data.
  • the switchable display device is arranged to switch the light generating unit 308 and the optical directing unit 310 such that they cooperate as required, i.e. in phase. That means that the image rendering unit 312 provides the light generating unit 308 with driving values corresponding to multi views if the optical directing unit 310 is actually in the multi- view mode and provides the light generating unit 308 with driving values corresponding to the single- view if the optical directing unit 310 is actually in the single- view mode.
  • the driving values may substantially corresponds to the values as directly available in the visual data of the information signal or may be computed by the image rendering unit 312.
  • the information signal as received by the input connector 306 comprises first visual data corresponding to multiple views and second visual data corresponding to a single view, together forming the visual data for covering the entire screen of the display device 300.
  • the detection unit 304 the display device 300 according to the invention establishes that e.g. because of a user input, a movement of a window corresponding to the first visual data will take place.
  • the display system 300 according to the invention switches entirely to single- view mode.
  • the image rendering unit 312 generates the appropriate driving values corresponding to single view on basis of the received information signal which still may represent multiple views partly.
  • the display device 300 switches back in a state having partly a single- view mode and partly a multi- view mode.
  • 304 may be implemented using one processor. Normally, these functions are performed under control of a software program product. During execution, normally the software program product is loaded into a memory, like a RAM, and executed from there. The program may be loaded from a background memory, like a ROM, hard disk, or magnetically and/or optical storage, or may be loaded via a network like Internet. Optionally an application specific integrated circuit provides the disclosed functionality.
  • the switchable display device 300 might e.g. be a TV.
  • the image processing apparatus 300 comprises storage means, like a hard- disk or means for storage on removable media, e.g. optical disks.
  • the display device according to the invention might have more than two viewing modes.
  • the display device switching the display mode of the display device to a third first display mode when a signal is received indicating that the first visual data is to be displayed on a third portion of the display device being different from the first portion of the display device.
  • any reference signs placed between parentheses shall not be constructed as limiting the claim.
  • the word 'comprising' does not exclude the presence of elements or steps not listed in a claim.
  • the word "a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the invention can be implemented by means of hardware comprising several distinct elements and by means of a suitable programmed computer. In the unit claims enumerating several means, several of these means can be embodied by one and the same item of hardware.
  • the usage of the words first, second and third, etcetera do not indicate any ordering. These words are to be interpreted as names.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

La présente invention se rapporte à un procédé de commande d'un dispositif d'affichage commutable (300) qui est conçu pour afficher de premières données visuelles sur une première partie (102) du dispositif d'affichage (300), ladite première partie (102) étant dans un premier mode d'affichage, et pour afficher de secondes données visuelles sur une deuxième partie (104) du dispositif d'affichage (300), ladite deuxième partie (104) étant dans un second mode d'affichage qui est différent dudit premier mode d'affichage. Le procédé consiste à commuter le mode d'affichage du dispositif d'affichage (300) sur le premier mode d'affichage ou le second mode d'affichage lorsqu'un signal reçu indique que les premières données visuelles doivent être affichées sur une troisième partie (105) du dispositif d'affichage (300) qui est différente de la première partie (102) du dispositif d'affichage (300).
PCT/IB2005/052998 2004-09-22 2005-09-13 Dispositif d'affichage commutable 2d/3d et procede de commande associe WO2006033046A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04104596.4 2004-09-22
EP04104596 2004-09-22

Publications (1)

Publication Number Publication Date
WO2006033046A1 true WO2006033046A1 (fr) 2006-03-30

Family

ID=35589557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/052998 WO2006033046A1 (fr) 2004-09-22 2005-09-13 Dispositif d'affichage commutable 2d/3d et procede de commande associe

Country Status (1)

Country Link
WO (1) WO2006033046A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1781046A1 (fr) * 2004-08-18 2007-05-02 Sharp Kabushiki Kaisha Appareil d'affichage de donnees d'image
GB2457691A (en) * 2008-02-21 2009-08-26 Sharp Kk Display with regions simultaneously operable in different viewing modes
EP2453659A2 (fr) * 2009-07-09 2012-05-16 LG Electronics Inc. Procédé de présentation d'image pour un dispositif d'affichage qui présente des contenus tridimensionnels et dispositif d'affichage faisant appel audit procédé
RU2504916C2 (ru) * 2008-12-01 2014-01-20 Шарп Кабусики Кайся Устройство воспроизведения содержимого и носитель записи

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0860729A2 (fr) * 1997-02-20 1998-08-26 Canon Kabushiki Kaisha Système d'affichage d'image, appareil de traitement d'information et méthode pour le commander
US6023277A (en) * 1996-07-03 2000-02-08 Canon Kabushiki Kaisha Display control apparatus and method
US6137456A (en) * 1996-07-01 2000-10-24 Corning Incorporated Electronic display device for simultaneously displaying 2D and 3D images
US6157424A (en) * 1998-03-30 2000-12-05 Dimension Technologies, Inc. 2D/3D imaging display

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137456A (en) * 1996-07-01 2000-10-24 Corning Incorporated Electronic display device for simultaneously displaying 2D and 3D images
US6023277A (en) * 1996-07-03 2000-02-08 Canon Kabushiki Kaisha Display control apparatus and method
EP0860729A2 (fr) * 1997-02-20 1998-08-26 Canon Kabushiki Kaisha Système d'affichage d'image, appareil de traitement d'information et méthode pour le commander
US6157424A (en) * 1998-03-30 2000-12-05 Dimension Technologies, Inc. 2D/3D imaging display

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1781046A1 (fr) * 2004-08-18 2007-05-02 Sharp Kabushiki Kaisha Appareil d'affichage de donnees d'image
EP1781046A4 (fr) * 2004-08-18 2010-01-20 Sharp Kk Appareil d'affichage de donnees d'image
US7859529B2 (en) 2004-08-18 2010-12-28 Sharp Kabushiki Kaisha Image data display apparatus
GB2457691A (en) * 2008-02-21 2009-08-26 Sharp Kk Display with regions simultaneously operable in different viewing modes
US8885018B2 (en) 2008-02-21 2014-11-11 Sharp Kabushiki Kaisha Display device configured to simultaneously exhibit multiple display modes
RU2504916C2 (ru) * 2008-12-01 2014-01-20 Шарп Кабусики Кайся Устройство воспроизведения содержимого и носитель записи
US8933987B2 (en) 2008-12-01 2015-01-13 Sharp Kabushiki Kaisha Content reproducing apparatus and recording medium for switching graphics and video images from 2D to 3D
EP2453659A2 (fr) * 2009-07-09 2012-05-16 LG Electronics Inc. Procédé de présentation d'image pour un dispositif d'affichage qui présente des contenus tridimensionnels et dispositif d'affichage faisant appel audit procédé
EP2453659A4 (fr) * 2009-07-09 2013-09-04 Lg Electronics Inc Procédé de présentation d'image pour un dispositif d'affichage qui présente des contenus tridimensionnels et dispositif d'affichage faisant appel audit procédé

Similar Documents

Publication Publication Date Title
EP1932368B1 (fr) Dispositif d'affichage 2d/3d commutable
US8902284B2 (en) Detection of view mode
EP1782638B1 (fr) Detection du mode de presentation
CN101390131B (zh) 呈现输出图像
EP1897056B1 (fr) Échange combiné de données d'image et de données apparentées
EP2815577B1 (fr) Dispositif d'affichage autostéroscopique et procédé de commande
US20100214393A1 (en) Combined exchange of image and related depth data
WO2007060584A2 (fr) Rendu d'images pour un dispositif d'affichage a images multiples
WO2006033046A1 (fr) Dispositif d'affichage commutable 2d/3d et procede de commande associe
US10212416B2 (en) Multi view image display apparatus and control method thereof
JP2004282217A (ja) 多眼式立体映像表示装置
KR20090022391A (ko) 3차원 디스플레이 장치

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05801607

Country of ref document: EP

Kind code of ref document: A1