公开(公告)号：US12155977B2

公开(公告)日：2024-11-26

申请号：US17713434

申请日：2022-04-05

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Trevor Davies ,  Martin J. Richards ,  Ashley Penna

IPC: H04N9/31 ,  G09G3/34 ,  G09G5/02

Abstract: A display for displaying image data includes defining virtual color gamuts based on a plurality of primary display colors associated with a light source. At least one of the virtual color gamuts is defined to approximate an established color gamut. Intensity values associated with the virtual color gamuts are generated based on received video data, and the intensity values associated with the virtual color gamuts are used to generate drive values for the primary colors of the light source. A display using one or more virtual color gamuts is also disclosed.

公开(公告)号：US12052531B2

公开(公告)日：2024-07-30

申请号：US17556855

申请日：2021-12-20

Applicant: Dolby Laboratories Licensing Corporation

Inventor： John Frederick Arntsen ,  Juan P. Pertierra ,  Martin J. Richards ,  Barret Lippey ,  Christopher John Orlick ,  Douglas J. Gorny

IPC: H04N9/31 ,  G02B5/09 ,  G02B6/00 ,  G02B26/10

CPC classification number: H04N9/3129 ,  G02B5/09 ,  G02B26/10 ,  H04N9/3161 ,  H04N9/3194 ,  G02B2006/0098

Abstract: A projector controller includes an object detector and control electronics, and is configured to protect audience members from intense light imposing an exclusion zone in front of a projector. The object detector is configured to optically sense a presence of an object in a detection region beneath the exclusion zone and above the audience members. The control electronics is configured to control the projector when the object detector indicates the presence of the object in the detection region. A method for protecting audience members from intense light imposing an exclusion zone in front of an output of a projector includes: (i) optically sensing a presence of an object in a detection region between the exclusion zone and the audience members, and (ii) controlling the projector when the presence of the object is sensed in the detection region.

公开(公告)号：US11889236B2

公开(公告)日：2024-01-30

申请号：US18087531

申请日：2022-12-22

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards

IPC: H04N9/31

CPC classification number: H04N9/3161 ,  H04N9/3126 ,  H04N9/3129

Abstract: A digital PSF for use in a dual modulation display. The invention allows the use of less than optimal point spread (PSF) functions in the optics between the pre-modulator and primary modulator of a dual modulation projection system. This technique uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to produce a compensation image that reduces the errors produced by the sub-optimal PSF. The invention includes the application to dual modulation and dual modulated 3D viewing systems.

公开(公告)号：US20230324783A1

公开(公告)日：2023-10-12

申请号：US18194991

申请日：2023-04-03

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Juan P. Pertierra ,  Martin J. Richards ,  Barret Lippey ,  Nathan Shawn Wainwright ,  John David Jackson

IPC: G03B21/20 ,  G03B21/00 ,  G03B21/26 ,  H04N9/31

CPC classification number: G03B21/26 ,  G03B21/005 ,  G03B21/2033 ,  H04N9/3105 ,  H04N9/3126 ,  H04N9/3164 ,  H04N9/3182

Abstract: A novel projection system includes a base signal source, a highlight signal source, a base/highlight destination, and a shared optical element. A base signal provided by the base source and a highlight signal provided by the highlight source are combined by the shared optical element. In a particular embodiment, the base signal source and the highlight signal source each include a light source, a spatial light modulator, and optics, and the base/highlight destination includes optics and a spatial light modulator. In a more particular embodiment, the base signal source and the highlight source provide spatially modulated lightfields to the shared optical element. In another particular embodiment, the base signal and the highlight signal are modulated by the spatial light modulator of the base/highlight destination after being combined.

公开(公告)号：US11637996B2

公开(公告)日：2023-04-25

申请号：US16660585

申请日：2019-10-22

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Gerwin Damberg ,  Martin J. Richards ,  Craig Todd

IPC: G03H1/00 ,  H04N9/31 ,  G06T11/00 ,  G03H1/08 ,  G03H1/16 ,  G03H1/22

Abstract: Projection displays include a highlight projector and a main projector. Highlights projected by the highlight projector boost luminance in highlight areas of a base image projected by the main projector. Various highlight projectors are based on steerable beams, holographic projectors, and spatial light modulators. A Fourier transform component and a mask positioned on the Fourier plane thereof are used to attenuate or eliminate selected spatial frequencies, e.g., to increase peak luminance without raising the black level of the projected image.

公开(公告)号：US11614682B2

公开(公告)日：2023-03-28

申请号：US17498681

申请日：2021-10-11

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Martin J. Richards ,  Nathan Wainwright ,  Douglas J. Gorny ,  Duane Scott Dewald

IPC: G03B21/20 ,  H04N9/31 ,  G03B21/00 ,  G03B21/14 ,  G06T5/00

Abstract: Projection systems and/or methods for efficient use of light by recycling a portion of the light energy for future use are disclosed. In one embodiment, a projection display system is disclosed comprising a light source; an integrating rod that receives light from said light source at a proximal end that comprise a reflective surface which may reflecting/recycle light down said integrating rod; of reflecting light down said integrating rod; a relay optical system, said relay optical system further comprising optical elements that are capable of moving the focal plane of the projector display system; and a modulator comprising at least one moveable mirror that reflects light received from the integrating rod in either a projection direction or a light recycling direction.

公开(公告)号：US11611727B2

公开(公告)日：2023-03-21

申请号：US17572060

申请日：2022-01-10

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Juan P. Pertierra ,  Martin J. Richards ,  Christopher John Orlick ,  Clement Le Barbenchon ,  Angelo M. Pires Arrifano

IPC: H04N9/31

Abstract: A novel high efficiency image projection system includes a beam-steering modulator, an amplitude modulator, and a controller. In a particular embodiment the controller generates beam-steering drive values from image data and uses the beam-steering drive values to drive the beam-steering modulator. Additionally, the controller utilizes the beam-steering drive values to generate a lightfield simulation of a lightfield projected onto the amplitude modulator by the beam-steering modulator. The controller utilizes the lightfield simulation to generate amplitude drive values for driving the amplitude modulator in order to project a high quality version of the image described by the image data.

公开(公告)号：US20230026771A1

公开(公告)日：2023-01-26

申请号：US17784610

申请日：2020-12-11

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Juan Pablo Pertierra ,  Martin J. Richards ,  Clement Luc Carol Le Barbenchon ,  Angelo Miguel Pires Arrifano

IPC: G03H1/22 ,  H04N9/31

Abstract: A projection system and method includes a light source configured to emit a light in response to an image data; a phase light modulator configured to receive the light from the light source and to apply a spatially-varying phase modulation on the light; and a controller configured to determine, for a frame of the image data, a plurality of phase configurations, respective ones of the plurality of phase configurations corresponding to solutions of a phase algorithm and representing the same image with a different modulation pattern, and provide a phase control signal to the phase light modulator, the phase control signal configured to cause the phase light modulator to modulate the plurality of phase configurations in a time-divisional manner within a time period of the frame, thereby to project a series of subframes within the time period.

公开(公告)号：US11539927B2

公开(公告)日：2022-12-27

申请号：US17461726

申请日：2021-08-30

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards

IPC: H04N9/31

Abstract: A digital PSF for use in a dual modulation display. The invention allows the use of less than optimal point spread (PSF) functions in the optics between the pre-modulator and primary modulator of a dual modulation projection system. This technique uses multiple halftones per frame in the pre-modulator synchronized with a modified bit sequence in the primary modulator to produce a compensation image that reduces the errors produced by the sub-optimal PSF. The invention includes the application to dual modulation and dual modulated 3D viewing systems.

公开(公告)号：US20220342131A1

公开(公告)日：2022-10-27

申请号：US17862647

申请日：2022-07-12

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

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

IPC: G02B5/28 ,  H04N13/324 ,  H04N13/334 ,  G02B26/00 ,  H04N13/363 ,  G02B30/34 ,  G02B30/23

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.