Patents by Inventor René de la Barré

René de la Barré has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120154395
    Abstract: A monitor for representing autostereoscopically, three-dimensionally perceivable pictures includes a matrix screen with a multitude of subpixels which are arranged in lines and columns and which may be changed in their illumination intensity and may be put together into a multitude of picture points, a control device for activating the subpixels in dependence on picture information of at least two stereoscopic fields, in a manner such that the picture points are divided in at least two subgroups for reproducing in each case one of the fields, and a barrier raster, with which light coming from the picture points of each of the subgroups may be led into in each case one of several observation zones which lie in a laterally displaced manner, said one of several observation zones being assigned to this subgroup by way of this.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 21, 2012
    Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: René de la Barré, Hans Röder
  • Publication number: 20120057132
    Abstract: The invention relates to a device for projecting images, comprising an optical element serving as projection surface and at least one projector (1, 1?) at a spacing from the projection surface by a projection spacing (S1) for projecting respectively an image onto the projection surface, the optical element being designed such that light emanating from the projector (1, 1?) is directed into a spatially delimited viewing zone (6, 6?) which is consequently assigned unequivocally to this projector (1, 1?), a viewing zone (6, 6?) being defined as the region from which the image projected by the projector (1, 1?) to which this viewing zone (6, 6?) is assigned is completely visible, and a viewing plane being definable as a plane which is at a spacing from the projection surface by a viewing spacing (S2) and in which a width of the viewing zone (6, 6?) is maximum.
    Type: Application
    Filed: March 3, 2010
    Publication date: March 8, 2012
    Inventors: Hans Röder, René de la Barré
  • Patent number: 8130272
    Abstract: A method for autostereoscopically producing three-dimensional image information from scanned subpixel extracts uses a multiplex track method (MTV) having a separating raster (TR) obliquely extended with respect to a matrix screen (MB) and an electronic tracking (TS) of viewing areas ibased on two separated image views (L, R), that adjacently disposes two or three subpixels (SP) of each pixel (P) of the two image views (L, R) in the actual subpixel extraction (SPA), continuously and alternatingly preserving each subpixel address and disposes said subpixels (SP) in an overlapping manner on each other with an offset, whereby the resolution loss effects the subpixels (SP) only. The crosstalk resulting from the inclination of the separating raster (TR) is reduced by a special structure of the subpixel extraction (SPA), wherein the resolution homogenisation in two directions of the screen is simultaneously preserved.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: March 6, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Siegmund Pastoor, René de la Barré
  • Publication number: 20120026164
    Abstract: An auto stereoscopic image display device, comprising a screen with a plurality of subpixels, a first parallax barrier and a second parallax barrier which differs from the first parallax barrier by a different slot spacing. The display device is switchable between a first mode being a multi-views 3D mode (multi-users 3D mode) in which the first parallax barrier is activated while the second parallax barrier is deactivated and a second mode being a two-views 3D mode (single-user 3D mode) in which the first parallax barrier is deactivated while the second parallax barrier is activated.
    Type: Application
    Filed: February 12, 2010
    Publication date: February 2, 2012
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWAN DTEN FORSCHUNG E.V.
    Inventors: René De La Barré, Hans Röder
  • Publication number: 20110310092
    Abstract: An image display device has a matrix screen having a plurality of pixels arranged in columns and a periodic grating arranged in front of the matrix screen having a structure extending parallel to the columns. A lateral direction grating period corresponds to a whole number multiple of adjacent column spacing of the matrix screen. In a use of this image display device, at least two different viewing positions are detected and disjunctive excerpts of columns of the matrix screen are determined in accordance with the detected viewing positions such that a respective excerpt is associated with each of the detected viewing positions, this excerpt including all columns at least partly visible through the grating from this viewing position, wherein the matrix screen is controlled in dependence with image information of at least two different images such that exactly one of the images is displayed on each of the excerpts.
    Type: Application
    Filed: May 23, 2011
    Publication date: December 22, 2011
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventor: René de la Barré
  • Publication number: 20110310003
    Abstract: An image display device includes an autostereoscopic screen for simultaneously displaying a plurality of different images which are visible from in each case at least one of different laterally offset viewing zones and a control unit for controlling the screen in dependence on image information of the different images, wherein the screen has a matrix screen with a plurality of pixels arranged in columns and rows as well as a grating arranged in front of the matrix screen and having a structure orientated parallel to the columns to direct light emanating from the pixels of the matrix screen into the different viewing zones. The image display device furthermore has a tracking device for detecting two respective eye positions of at least two viewers of the screen, wherein the control unit is configured for inputting input commands.
    Type: Application
    Filed: May 23, 2011
    Publication date: December 22, 2011
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventor: René de la Barré
  • Publication number: 20110216061
    Abstract: A method for displaying image information on an autostereoscopic screen that is suitable for simultaneous display of a plurality of views visible respectively from at least one of a plurality of laterally offset viewing zones. A first stereoscopic half-image and a second stereoscopic half-image, which are perceptible simultaneously and together produce a stereoimage, are reproduced on the screen such that the first stereoscopic half-image is visible from two laterally offset and respectively continuous regions, while the second stereoscopic half-image is visible from a stereozone which is situated between the two mentioned regions and is smaller than each of these two regions.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Rene De La Barre, Silvio Jurk
  • Publication number: 20110216171
    Abstract: A method for representing picture information on an autostereoscopic screen that is designed as a multiperson screen and that is suitable for the simultaneous display of a plurality of views which are visible in each case from at least one of different observation zones. The screen includes a matrix screen having a plurality of pixels as well as a beam splitter raster that is suitable for guiding light coming from the pixels, in each case into at least one of the observation zones. In the method, the pixels are activated with picture information of at least two different scenes, in a manner such that a first observer of the screen may exclusively see a first of the at least two scenes and a second observer of the screen may exclusively see a second of the at least two scenes.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Rene De La Barre, Silvio Jurk
  • Publication number: 20110128356
    Abstract: The invention relates to a method for displaying image information in which pixels of a matrix screen (21) are actuated as a function of the image information (30) of a plurality of more than two different mutually complementary stereoscopic half-images such that each of the half-images is reproduced with a large number of image points on one of different sub-groups of the pixels and light emanating from each of these sub-groups of pixels is conducted through a beam splitter grid (22) into a region (31, 32, 33, 34) which is assigned to this sub-group, from which region only the half-image reproduced by this sub-group is visible, eye positions of respectively two eyes of at least two viewers (27, 28, 29) being determined and the sub-groups of pixels, on which respectively one of the half-images is reproduced, being chosen as a function of the detected eye positions such that the eyes of each of the at least two viewers (27, 28, 29) are situated in two of the mentioned regions (31, 32, 33, 34) from which two mu
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Renè de la Barrè, Silvio Jurk
  • Publication number: 20100295928
    Abstract: A method for the autostereoscopic representation of image information on a matrix screen on which image points are formed through a subpixel group, each with a plurality of subpixels, wherein two stereoscopic fields are imaged on one of two subgroups of the image points, and wherein light emanating from the two subgroups of image points is guided through a barrier raster into two adjacent viewing zones, and wherein a change of the viewer's head position is further detected, and activation of the subpixels is adapted to the change of the head position by shifting intensity centroids, in particular, within the image points in that, upon a change in the viewing distance between the head position and the matrix screen by adapting of weightings of intensities within the image points such that a lateral distance between the centroid of the intensity distributions in a left viewing zone and the centroid of the intensity distributions in a right viewing zone in a viewing plane remains constant.
    Type: Application
    Filed: November 14, 2008
    Publication date: November 25, 2010
    Applicant: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Rene De La Barre, Siegmund Pastoor, Hans Roder
  • Publication number: 20100177382
    Abstract: Known image display appliances with relatively large appliance depth have parallel lens plates with rotation-symmetrical microlenses, wherein a real stereo image could be made visible directly using a matt screen by way of the microlenses optically imaging the non-inverted, non-rastered image information. Known image display appliances with a cylinder lens plate, the cylinder lenses of which image linearly, have hitherto not been used to produce a floating real stereo image.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 15, 2010
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Rene De La Barre, Siegmund Pastoor, Hans Roder
  • Publication number: 20090278936
    Abstract: A method for autostereoscopically producing three-dimensional image information from scanned subpixel extracts uses a multiplex track method (MTV) having a separating raster (TR) obliquely extended with respect to a matrix screen (MB) and an electronic tracking (TS) of viewing areas ibased on two separated image views (L, R), that adjacently disposes two or three subpixels (SP) of each pixel (P) of the two image views (L, R) in the actual subpixel extraction (SPA), continuously and alternatingly preserving each subpixel address and disposes said subpixels (SP) in an overlapping manner on each other with an offset, whereby the resolution loss effects the subpixels (SP) only. The crosstalk resulting from the inclination of the separating raster (TR) is reduced by a special structure of the subpixel extraction (SPA), wherein the resolution homogenisation in two directions of the screen is simultaneously preserved.
    Type: Application
    Filed: December 8, 2005
    Publication date: November 12, 2009
    Inventors: Siegmund Pastoor, Rene de la Barre
  • Publication number: 20090123030
    Abstract: For continuous tracking without noticeable skips during physical changes in head position, the intensities of all subpixels of the matrix screen are reduced in order to form intensity focuses for subpixel groups behind barrier elements, which comprise a number n of subpixels, including a subpixel reserve, in the image lines. In the case of parallel alterations, these intensity focuses are then displaced by a constant absolute value continuously through directly adjacent subpixels and also through subpixel group boundaries with different stereo image views. Distance changes involve the intensity focuses being increasingly widened or compressed relative to the screen edges. The intensities of the individual subpixels can be altered by means of simple multiplication by standardized constant or variable intensity factors which can be ascertained as a function of motion.
    Type: Application
    Filed: December 30, 2008
    Publication date: May 14, 2009
    Inventors: Rene De La Barre, David Przewozny, Siegmund Pastoor