Patents by Inventor Dzhakhangir V. Khaydarov
Dzhakhangir V. Khaydarov 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).
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Patent number: 11868032Abstract: A projector includes a light source, an integrating rod, an image panel, a beam shaper, and an actuator mechanically connected to the beam shaper. The image panel is configured to display an image at a displayed aspect ratio. The beam shaper includes multiple prisms shaped and oriented such that when the beam shaper intersects an optical path of the illumination between the integrating rod and the image panel, the illumination transmitted by the beam shaper is collinear with the illumination incident on the beam shaper. The actuator is configured to switch the projector between (i) a first configuration, in which the beam shaper does not change an aspect ratio of the illumination, and (ii) a second configuration, in which the beam shaper intersects the optical path between the integrating rod and the image panel and changes the aspect ratio of the illumination.Type: GrantFiled: January 16, 2020Date of Patent: January 9, 2024Assignee: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Dzhakhangir V. Khaydarov, Douglas J. Gorny
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Publication number: 20230319244Abstract: A projection display system comprises a light source configured to emit a light in response to a content data; an optical modulator configured to modulate the light; and a controller configured to adjust a light level of the projection display system based on the content data and a metadata relating to a future frame, thereby to reduce a perceptibility of a visual artifact.Type: ApplicationFiled: April 11, 2023Publication date: October 5, 2023Applicant: Dolby Laboratories Licensing CorporationInventors: Martin J. RICHARDS, Barret LIPPEY, Juan P. PERTIERRA, Dzhakhangir V. KHAYDAROV, Duane Scott DEWALD, Nathan Shawn WAINWRIGHT, Darren HENNIGAN, John David JACKSON
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Patent number: 11632527Abstract: A projection display system comprises a light source configured to emit a light in response to a content data; an optical modulator configured to modulate the light; and a controller configured to adjust a light level of the projection display system based on the content data and a metadata relating to a future frame, thereby to reduce a perceptibility of a visual artifact.Type: GrantFiled: September 25, 2019Date of Patent: April 18, 2023Assignee: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Martin J. Richards, Barret Lippey, Juan P. Pertierra, Dzhakhangir V. Khaydarov, Duane Scott Dewald, Nathan Shawn Wainwright, Darren Hennigan, John David Jackson
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Publication number: 20220191440Abstract: A dual-modulation laser projection system (100) includes a polarizing beamsplitter (110) for splitting laser light (180) into first (182) and second (184) polarized beams having mutually orthogonal polarizations, a phase spatial light modulator (120) for beam steering the second polarized beam (184), a mechanical amplitude spatial light modulator (130) for amplitude modulating a combination of the first polarized beam (182) and the second polarized beam (186) as beam steered by the phase spatial light modulator (120), and a filter (140) for removing, from the combination (190) of the first and second polarized beams, one or more of a plurality of diffraction orders introduced by the mechanical amplitude spatial light modulator (130), to generate filtered, modulated output light (192).Type: ApplicationFiled: March 15, 2019Publication date: June 16, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Juan P. PERTIERRA, Martin J. RICHARDS, Dzhakhangir V. Khaydarov
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Publication number: 20220091489Abstract: A projector includes a light source, an integrating rod, an image panel, a beam shaper, and an actuator mechanically connected to the beam shaper. The image panel is configured to display an image at a displayed aspect ratio. The beam shaper includes multiple prisms shaped and oriented such that when the beam shaper intersects an optical path of the illumination between the integrating rod and the image panel, the illumination transmitted by the beam shaper is collinear with the illumination incident on the beam shaper. The actuator is configured to switch the projector between (i) a first configuration, in which the beam shaper does not change an aspect ratio of the illumination, and (ii) a second configuration, in which the beam shaper intersects the optical path between the integrating rod and the image panel and changes the aspect ratio of the illumination.Type: ApplicationFiled: January 16, 2020Publication date: March 24, 2022Inventors: Dzhakhangir V. KHAYDAROV, Douglas J. GORNY
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Publication number: 20220038667Abstract: A projection display system comprises a light source configured to emit a light in response to a content data; an optical modulator configured to modulate the light; and a controller configured to adjust a light level of the projection display system based on the content data and a metadata relating to a future frame, thereby to reduce a perceptibility of a visual artifact.Type: ApplicationFiled: September 25, 2019Publication date: February 3, 2022Applicant: Dolby Laboratories Licensing CorporationInventors: Martin J. RICHARDS, Barret LIPPEY, Juan P. PERTIERRA, Dzhakhangir V. KHAYDAROV, Duane Scott DEWALD, Nathan Shawn WAINWRIGHT, Darren HENNIGAN, John David JACKSON
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Patent number: 10809455Abstract: A laser-written waveguide comprising, an optical substrate having a first refractive index, a plurality of laser-written tracks buried within the optical substrate and having a second refractive index lower than the first refractive index, one or more concentric geometric regions bounding the plurality of laser-written tracks and a waveguide channel delimited by said concentric geometric regions, wherein said waveguide channel is configured to allow formation of an optical mode.Type: GrantFiled: August 28, 2017Date of Patent: October 20, 2020Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Thomas Triplett, Dzhakhangir V. Khaydarov, Xiaozhen Xu, Gennady Imeshev
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Publication number: 20190235164Abstract: A laser-written waveguide comprising, an optical substrate having a first refractive index, a plurality of laser-written tracks buried within the optical substrate and having a second refractive index lower than the first refractive index, one or more concentric geometric regions bounding the plurality of laser-written tracks and a waveguide channel delimited by said concentric geometric regions, wherein said waveguide channel is configured to allow formation of an optical mode.Type: ApplicationFiled: August 28, 2017Publication date: August 1, 2019Applicant: Dolby Laboratories Licensing CorporationInventors: Mark Thomas TRIPLETT, Dzhakhangir V. KHAYDAROV, Xiaozhen XU, Gennady IMESHEV
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Publication number: 20180157149Abstract: A device for quasi-phase-matched frequency doubling of broadband light with uncorrelated spectral phase includes a nonlinear optical material, which in turn includes a domain-reversed grating organized in a series of sections along propagation direction of the broadband light through the nonlinear optical material. Each of the sections is characterized by a respective period of the domain-reversed grating. The period within a first connected subset of the series alternates between two discrete values along the propagation direction. A method for designing the domain-reversed grating includes determining a grating function model describing an ideal nonlinear coefficient of a domain-reversed grating, and discretizing the grating function model to a manufacturable grating function having period restricted to a discrete set of manufacturable periods.Type: ApplicationFiled: November 27, 2017Publication date: June 7, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Alireza MARANDI, Gennady IMESHEV, Dzhakhangir V. KHAYDAROV, Gregory David MILLER
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Patent number: 9124061Abstract: A laser light source includes a thermoelectric cooling device, a composite green laser made up of an infrared wavelength pumped laser diode and a solid-state laser cavity designed for efficient nonlinear intra-cavity frequency conversion into desired wavelengths using periodically poled nonlinear crystals thermally coupled with the cooling device and a red wavelength laser diode thermally coupled with said cooling device. In this manner, the cooling device maintains a common temperature of the infrared pumped laser diode and the red laser diode over an ambient temperature range.Type: GrantFiled: May 12, 2014Date of Patent: September 1, 2015Assignee: Spectralus CorporationInventors: Stephan Essaian, Dzhakhangir V. Khaydarov
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Publication number: 20140341241Abstract: A laser light source includes a thermoelectric cooling device, a composite green laser made up of an infrared wavelength pumped laser diode and a solid-state laser cavity designed for efficient nonlinear intra-cavity frequency conversion into desired wavelengths using periodically poled nonlinear crystals thermally coupled with the cooling device and a red wavelength laser diode thermally coupled with said cooling device. In this manner, the cooling device maintains a common temperature of the infrared pumped laser diode and the red laser diode over an ambient temperature range.Type: ApplicationFiled: May 12, 2014Publication date: November 20, 2014Applicant: Spectralus CorporationInventors: Stepan Essaian, Dzhakhangir V. Khaydarov
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Patent number: 7356053Abstract: A pulsed, mode-locked, picosecond laser having a solid-state laser medium, a saturable absorber (SA), and a passive negative feedback (PNF) element. The SA is “slow,” having an absorption recovery time which is longer than a desired duration of an output pulse. The SA and the PNF element together mode-lock the laser to produce an output pulse or pulses of a given duration. The position of the SA along the beam path and the orientation of the SA with respect to the beam path can be varied to vary the output pulse duration over a wide range.Type: GrantFiled: October 6, 2003Date of Patent: April 8, 2008Assignee: Continuum Electro-Optics, Inc.Inventor: Dzhakhangir V. Khaydarov
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Patent number: 6876818Abstract: A system and method for transmission of data modulated spectrally enriched optical pulses via an error free propagation region of an optical fiber, in which the optical pulses generated by an optical transmitter have a spectrum that is substantially wider than the spectrum of Fourier-transform limit at an input of the error-free propagation region. The spectral width of the optical pulses gradually narrows while transmitting along this region and becomes comparable to the Fourier-transform limit at an output of this region. Linear and non-linear distortions are compensated within the error free propagation region respectively by deployment of dispersion compensating units and phase modulation of transmitted optical pulses for providing them with an appropriate frequency chirp having shape comparable with a frequency chirp induced by a self-phase modulation of the optical fiber but having opposite sign.Type: GrantFiled: August 18, 2000Date of Patent: April 5, 2005Assignee: FutureWei Technologies, Inc.Inventors: Yu Sheng Bai, Clarence Kan, Dzhakhangir V. Khaydarov, Robert Brogle, Tatiana V. Rossin, Ilya M. Fishman
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Patent number: 6546027Abstract: The present invention is directed to a pulsed, mode-locked, picosecond laser having a solid-state laser medium, a saturable absorber (SA), and a passive negative feedback (PNF) element. The SA is “slow”, having an absorption recovery time which is longer than a desired duration of an output pulse. The SA and the PNF element together mode-lock the laser to produce an output pulse or pulses of the desired duration. Thus, according to the method of the invention, the solid-state laser medium is energized, whereupon the laser becomes mode-locked to produce the desired output pulses. The solid-state laser of the present invention is capable of producing very short, energetic output pulses, such as output pulses having a duration on the order of one or more picoseconds, and an energy of from about 100 &mgr;J to about 2 mJ. These output pulses are very stable. As the laser is of relatively simple construction, it is relatively easy to operate to produce this stable energy output.Type: GrantFiled: December 1, 1999Date of Patent: April 8, 2003Assignee: Hoya Photonics, Inc.Inventor: Dzhakhangir V. Khaydarov