知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

129 records (took 0.024 seconds)

    Projection system and method with blended color gamut
    2.
    发明授权
    Projection system and method with blended color gamut 有权

    公开(公告)号：US12075021B2

    公开(公告)日：2024-08-27

    申请号：US17793864

    申请日：2021-01-28

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Trevor Davies ,  Clement Luc Carol Le Barbenchon ,  Elizabeth Dovale ,  Martin J. Richards

    IPC: H04N13/363 ,  H04N9/31

    CPC classification number: H04N13/363 ,  H04N9/3182

    Abstract: A projection system and method therefore related to a first projection device; a second projection device; at least one spatial modulator; and an electronic processor configured to: receive a two-dimensional video data, generate a first plurality of intensity values of a first color gamut and a second plurality of intensity values of a second color gamut, subtract a luminance threshold from a plurality of pixel values of the second color gamut to yield a plurality of positive pixel values and a plurality of negative pixel values, set respective ones of the plurality of pixel values to predetermined values to obtain a residual of the second color gamut, add the residual to the first color gamut, add maximized pixel values to the first color gamut and the second color gamut to create an output gamut, and blend the output gamut with a native color gamut to generate a blended gamut.

    Beam combining for highlight projection
    5.
    发明授权
    Beam combining for highlight projection 有权

    公开(公告)号：US11457185B2

    公开(公告)日：2022-09-27

    申请号：US17154694

    申请日：2021-01-21

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Martin J. Richards ,  Barret Lippey

    IPC: H04N9/31 ,  H04N13/334 ,  H04N13/356 ,  H04N13/337 ,  H04N13/359 ,  H04N13/363 ,  H04N13/332 ,  H04N13/339 ,  H04N13/341 ,  H04N13/351

    Abstract: A novel projection system includes first and second light sources (e.g., sets of lasers), a spatial light modulator (SLM) that receives light from the first light source, and a beam steering device that receives light from the second light source and steers the light to highlight regions of the SLM. The SLM then modulates the light from both light sources to generate a highlighted imaging beam which can then be projected on a viewing surface. The highlighted imaging beam can represent a highlighted 2D image or a highlighted left- or right-eye view of a 3D image. The projection system thus improves peak brightness in the displayed highlighted images without incorporating a separate highlight projector or other expensive equipment. Methods for highlighting projected images are also described.

    Spatial light modulator for reduction of certain order light
    6.
    发明授权
    Spatial light modulator for reduction of certain order light 有权

    公开(公告)号：US11269241B2

    公开(公告)日：2022-03-08

    申请号：US16887314

    申请日：2020-05-29

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Juan P. Pertierra ,  Martin J. Richards ,  Barret Lippey

    IPC: G03B21/00 ,  G02B26/06 ,  H04N9/31 ,  G02B5/20 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/1347 ,  G03H1/22 ,  G03B21/20

    Abstract: A novel spatial light modulator (SLM) includes a cover glass, and modulation layer, and a plurality of pixel mirrors, and separates unwanted, reflected light from desired, modulated light. In one embodiment, a geometrical relationship exists between the cover glass and the pixel mirrors, such that light that reflects from the cover glass is separated from light that reflects from the pixel mirrors and is transmitted from the SLM. In one example, one of the cover glass or the pixel mirrors is angled with respect to the modulation layer. In another example embodiment, the cover glass has a particular thickness, which introduces destructive interference between light that reflects from the top and bottom surfaces of the cover glass. In another embodiment antireflective coatings are disposed between optical interfaces of the SLM. In another embodiment, light from the SLM is directed through an optical filter to remove unwanted light.

    Systems and methods for local dimming in multi-modulation displays
    7.
    发明授权
    Systems and methods for local dimming in multi-modulation displays 有权

    公开(公告)号：US10694157B2

    公开(公告)日：2020-06-23

    申请号：US15995017

    申请日：2018-05-31

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Jerome Shields ,  Martin J. Richards ,  Juan P. Pertierra

    IPC: H04N9/31 ,  G03B21/20 ,  G03B21/00

    Abstract: Dual and multi-modulator projector display systems and techniques are disclosed. In one embodiment, a projector display system comprises a light source; a controller, a first modulator, receiving light from the light source and rendering a halftone image of said the input image; a blurring optical system that blurs said halftone image with a Point Spread Function (PSF); and a second modulator receiving the blurred halftone image and rendering a pulse width modulated image which may be projected to form the desired screen image. Systems and techniques for forming a binary halftone image from input image, correcting for misalignment between the first and second modulators and calibrating the projector system—e.g. over time—for continuous image improvement are also disclosed.

    Method and System for Shaped Glasses and Viewing 3D Images
    8.
    发明申请
    Method and System for Shaped Glasses and Viewing 3D Images 审中-公开

    公开(公告)号：US20190258070A1

    公开(公告)日：2019-08-22

    申请号：US16397366

    申请日：2019-04-29

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Martin J. Richards ,  Wilson Heaton Allen

    IPC: G02B27/22 ,  G02C7/12 ,  G02C7/10 ,  G03B35/26 ,  H04N13/334 ,  H04N13/363

    Abstract: Shaped glasses have curved surface lenses and spectrally complementary filters disposed on the curved surface lenses configured to compensate for wavelength shifts occurring due to viewing angles and other sources. The spectrally complementary filters include guard bands to prevent crosstalk between spectrally complementary portions of a 3D image viewed through the shaped glasses. In one embodiment, the spectrally complementary filters are disposed on the curved lenses with increasing layer thickness towards edges of the lenses. The projected complementary images may also be pre-shifted to compensate for subsequent wavelength shifts occurring while viewing the images.

    Displaying DCI and other content on an enhanced dynamic range projector
    9.
    发明授权
    Displaying DCI and other content on an enhanced dynamic range projector 有权

    公开(公告)号：US10368044B2

    公开(公告)日：2019-07-30

    申请号：US15025536

    申请日：2014-10-02

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Martin J. Richards ,  Douglas J. Gorny

    IPC: H04N9/31 ,  H04N9/67

    Abstract: Systems and methods of rendering DCI-compliant image data on Enhanced Dynamic Range (EDR) display systems are disclosed. One embodiment of an EDR projector system comprises a first modulator and a second modulator. One method for rendering DCI-compliant image data on an EDR projector system comprises: receiving input image data, said image data comprising a plurality of image formats; determining whether the input image data comprises DCI image data; if the input image data comprises DCI image data, then performing dynamic range (DR) processing on the DCI image data; and rendering the dynamic range processed DCI image data on the EDR projector system. One DR processing method is to set the first modulator to a desired luminance level—e.g., fully ON or a ratio of DCI max luminance to the EDR max luminance. In addition, a desired minimum level of luminance may be set for the EDR projector.

    System for 3D Image Projections and Viewing
    10.
    发明申请
    System for 3D Image Projections and Viewing 审中-公开

    公开(公告)号：US20180210220A1

    公开(公告)日：2018-07-26

    申请号：US15927645

    申请日：2018-03-21

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Martin J. Richards ,  Wilson Allen ,  Gary D. Gomes

    IPC: G02B27/22 ,  G02B5/28 ,  G02B26/00

    Abstract: Shaped glasses have curved surface lenses with spectrally complementary filters disposed thereon. The filters curved surface lenses are configured to compensate for wavelength shifts occurring due to viewing angles and other sources. Complementary images are projected for viewing through projection filters having passbands that pre-shift to compensate for subsequent wavelength shifts. At least one filter may have more than 3 primary passbands. For example, two filters include a first filter having passbands of low blue, high blue, low green, high green, and red, and a second filter having passbands of blue, green, and red. The additional passbands may be utilized to more closely match a color space and white point of a projector in which the filters are used. The shaped glasses and projection filters together may be utilized as a system for projecting and viewing 3D images.

Patent Agency Ranking