Patents by Inventor John N. Sweetser
John N. Sweetser 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: 11736677Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.Type: GrantFiled: August 5, 2020Date of Patent: August 22, 2023Assignee: Sony Group CorporationInventors: Anders Grunnet-Jepsen, Akihiro Takagi, John N. Sweetser, Paul Winer
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Publication number: 20210058606Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.Type: ApplicationFiled: August 5, 2020Publication date: February 25, 2021Inventors: Anders Grunnet-Jepsen, Akihiro Takagi, John N. Sweetser, Paul Winer
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Patent number: 10771767Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.Type: GrantFiled: February 28, 2019Date of Patent: September 8, 2020Assignee: Intel CorporationInventors: Anders Grunnet-Jepsen, Akihiro Takagi, John N. Sweetser, Paul Winer
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Publication number: 20190200001Abstract: Systems, devices, and techniques related to projecting dynamic feature patterns onto a scene for use in stereoscopic imaging are discussed. Such techniques may include implementing a dynamic transmissive element in an optical path between a projector and the scene to modify a static pattern emitted from the projector to illuminate the scene with a dynamic pattern.Type: ApplicationFiled: February 28, 2019Publication date: June 27, 2019Applicant: Intel CorporationInventors: Anders Grunnet-Jepsen, Akihiro Takagi, John N. Sweetser, Paul Winer
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Patent number: 9494415Abstract: In embodiments, apparatuses, methods and storage media for human-computer interaction are described. In embodiments, an apparatus may include one or more light sources and a camera. Through capture of images by the camera, the computing device may detect positions of objects of a user, within a three-dimensional (3-D) interaction region within which to track positions of the objects of the user. The apparatus may utilize multiple light sources, which may be disposed at different distances to the display and may illuminate the objects in a direction other than the image capture direction. The apparatus may selectively illuminate individual light sources to facilitate detection of the objects in the direction toward the display. The camera may also capture images in synchronization with the selective illumination. Other embodiments may be described and claimed.Type: GrantFiled: November 7, 2013Date of Patent: November 15, 2016Assignee: Intel CorporationInventors: John N. Sweetser, Anders Grunnet-Jepsen, Paul Winer, Leonid M. Keselman, Steven S. Bateman, Chris Rojas, Akihiro Takagi, Chandrika Jayant
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Patent number: 9304597Abstract: Apparatus, computer-readable storage medium, and method associated with human computer interaction. In embodiments, a computing device may include a plurality of sensors, including a plurality of light sources and a camera, to create a three dimensional (3-D) interaction region within which to track individual finger positions of a user of the computing device. The light sources and the camera may be complementarily disposed for the camera to capture the finger or hand positions. The computing device may further include a 3-D interaction module configured to analyze the individual finger positions within the 3-D interaction region, the individual finger movements captured by the camera, to detect a gesture based on a result of the analysis, and to execute a user control action corresponding to the gesture detected. Other embodiments may be described and/or claimed.Type: GrantFiled: October 29, 2013Date of Patent: April 5, 2016Assignee: Intel CorporationInventors: Anders Grunnet-Jepsen, John N. Sweetser, Paul Winer, Steven S. Bateman, Akihiro Takagi, Leonid M. Keselman, Chandrika Jayant, Jonathan C. Thompson
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Publication number: 20150131852Abstract: In embodiments, apparatuses, methods and storage media for human-computer interaction are described. In embodiments, an apparatus may include one or more light sources and a camera. Through capture of images by the camera, the computing device may detect positions of objects of a user, within a three-dimensional (3-D) interaction region within which to track positions of the objects of the user. The apparatus may utilize multiple light sources, which may be disposed at different distances to the display and may illuminate the objects in a direction other than the image capture direction. The apparatus may selectively illuminate individual light sources to facilitate detection of the objects in the direction toward the display. The camera may also capture images in synchronization with the selective illumination. Other embodiments may be described and claimed.Type: ApplicationFiled: November 7, 2013Publication date: May 14, 2015Inventors: John N. Sweetser, Anders Grunnet-Jepsen, Paul Winer, Leonid M. Keselman, Steven S. Bateman, Chris Rojas, Akihiro Takagi, Chandrika Jayant
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Publication number: 20150116214Abstract: Apparatus, computer-readable storage medium, and method associated with human computer interaction. In embodiments, a computing device may include a plurality of sensors, including a plurality of light sources and a camera, to create a three dimensional (3-D) interaction region within which to track individual finger positions of a user of the computing device. The light sources and the camera may be complementarily disposed for the camera to capture the finger or hand positions. The computing device may further include a 3-D interaction module configured to analyze the individual finger positions within the 3-D interaction region, the individual finger movements captured by the camera, to detect a gesture based on a result of the analysis, and to execute a user control action corresponding to the gesture detected. Other embodiments may be described and/or claimed.Type: ApplicationFiled: October 29, 2013Publication date: April 30, 2015Inventors: Anders Grunnet-Jepsen, John N. Sweetser, Paul Winer, Steven S. Bateman, Akihiro Takagi, Leonid M. Keselman, Chandrika Jayant, Jonathan C. Thompson
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Patent number: 7189497Abstract: Multiple Bragg gratings are fabricated in a single planar lightwave circuit platform. The gratings have nominally identical grating spacing but different center wavelengths, which are produced using controlled photolithographic processes and/or controlled doping to control the effective refractive index of the gratings. The gratings may be spaced closer together than the height of the UV light pattern used to write the gratings.Type: GrantFiled: July 24, 2002Date of Patent: March 13, 2007Assignee: Intel CorporationInventors: Anders Grunnet-Jepsen, Alan E. Johnson, John N. Sweetser
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Patent number: 7164478Abstract: A mounting platform provides support and packaging for one or more fiber Bragg gratings and electronic circuitry (e.g., heaters, coolers, piezoelectric strain providers, temperature and strain sensors, feedback circuitry, control loops), which may be printed on or on the mounting platform, embedded in the mounting platform, or may be an “off-board” chip solution (e.g., the electronic circuitry may be attached to the mounting platform, but not formed on or defined on the mounting platform). The fiber Bragg gratings are held in close proximity to the electronic circuitry, which applies local and global temperature and/or strain variations to the fiber Bragg gratings to, for example, stabilize and/or tune spectral properties of the fiber Bragg gratings so that spatial variations in the fiber Bragg gratings that result from processing and manufacturing fluctuations and tolerances can be compensated for.Type: GrantFiled: January 21, 2005Date of Patent: January 16, 2007Assignee: Intel CorporationInventors: Alan E. Johnson, Anders Grunnet-Jepsen, Tsung-Ein Tsai, John N. Sweetser, Matthew Miller
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Patent number: 7065298Abstract: Optical communication systems include a central station that encodes data transmitted to multiplexing (mux) stations or user stations. The central station also decodes data received from the mux stations or user stations. Encoding and decoding are performed using codes, such as composite codes, that designate sources and destinations for data. The mux stations, user stations, and the central station have address encoders and decoders that use, for example, fiber Bragg gratings to encode or decode optical signals according to a code such as a composite code derived by combining codes from one or more sets of codes. A passive optical network comprises one or more levels of mux stations that use such address decoders and encoders to receive, decode, and encode data for transmission toward a central station or a user station.Type: GrantFiled: November 17, 1999Date of Patent: June 20, 2006Assignee: Intel CorporationInventors: Michael J. Munroe, Alan E. Johnson, Anders Grunnet-Jepsen, Eric S. Maniloff, Thomas W. Mossberg, John N. Sweetser
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Patent number: 6983091Abstract: Multiple Bragg gratings are fabricated in a single planar lightwave circuit platform. The gratings have nominally identical grating spacing but different center wavelengths, which are produced using controlled photolithographic processes and/or controlled doping to control the effective refractive index of the gratings. The gratings may be spaced closer together than the height of the UV light pattern used to write the gratings.Type: GrantFiled: August 3, 2004Date of Patent: January 3, 2006Assignee: Intel CorporationInventors: Anders Grunnet-Jepsen, Alan E. Johnson, John N. Sweetser
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Patent number: 6975794Abstract: A system for fabricating Bragg gratings includes an optical waveguide (e.g., an optical fiber, a planar waveguide), an interference pattern generator (e.g., a transmission phase grating such as a phase mask or a diffraction grating), first motion equipment (e.g. a nanostage), a pulsed light source (e.g. an excimer laser), and second motion equipment (e.g. a stepper motor). A method for fabricating Bragg gratings using this system includes providing relative motion between the optical waveguide and the interference pattern using the nanostage, providing relative motion in discrete increments between the pulsed light source and the assemblage comprising the optical waveguide, nanostage, and interference pattern generator using the stepper motor, and successively exposing the optical waveguide to the pulsed light through the interference pattern generator when the optical waveguide and interference pattern are effectively stationary relative to the pulsed light.Type: GrantFiled: March 15, 2002Date of Patent: December 13, 2005Assignee: Intel CorporationInventors: John N. Sweetser, Anders Grunnet-Jepsen
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Patent number: 6961484Abstract: A mounting platform provides support and packaging for one or more fiber Bragg gratings and electronic circuitry (e.g., heaters, coolers, piezoelectric strain providers, temperature and strain sensors, feedback circuitry, control loops), which may be printed on or on the mounting platform, embedded in the mounting platform, or may be an “off-board” chip solution (e.g., the electronic circuitry may be attached to the mounting platform, but not formed on or defined on the mounting platform). The fiber Bragg gratings are held in close proximity to the electronic circuitry, which applies local and global temperature and/or strain variations to the fiber Bragg gratings to, for example, stabilize and/or tune spectral properties of the fiber Bragg gratings so that spatial variations in the fiber Bragg gratings that result from processing and manufacturing fluctuations and tolerances can be compensated for.Type: GrantFiled: May 21, 2002Date of Patent: November 1, 2005Assignee: Intel CorporationInventors: Alan E. Johnson, Anders Grunnet-Jepsen, Tsung-Ein Tsai, John N. Sweetser, Matthew Miller
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Patent number: 6865344Abstract: Communication systems and methods are disclosed that route, detect, and decode encoded optical signals at network nodes based on channel codes assigned to the network nodes. In an example communication system, a network hub includes a channel selector that encodes an optical signal with a channel code assigned to one or more network nodes. The channel selector is configured to encode based on a channel selection signal provided to the channel selector and can include one or more fiber Bragg coders. Code-switched communication systems can include one or more nodes configured in ring, tree, or bus architectures.Type: GrantFiled: November 13, 2000Date of Patent: March 8, 2005Assignee: Intel CorporationInventors: Alan E. Johnson, Michael J. Munroe, Anders Grunnet-Jepsen, Eric S. Maniloff, John N. Sweetser
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Patent number: 6847762Abstract: In accordance with some embodiments of the present invention, while a Bragg grating is being written in a substrate, measurements may be taken to allow changes to be made in the writing process to reduce errors that may occur in the written grating. In one embodiment, multiple scans of the writing beam can be used. After a scan, measurements of the characteristics of the grating being written can be taken and corrections may be implemented on subsequent scans.Type: GrantFiled: July 2, 2002Date of Patent: January 25, 2005Assignee: Intel CorporationInventors: John N. Sweetser, Anders Grunnet-Jepsen
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Publication number: 20040264842Abstract: The coupling properties of an optical device having at least two inputs and two outputs may be more accurately measured by simultaneously measuring the optical transmission through all outputs for light coupled to each input to the device. An optical switch may be used to selectively couple the light to each of the device inputs. This removes the need to remove the light source from one input and to reconnect it to another input. By proper processing of the measured optical transmission corresponding to each input, an accurate and precise value for the transfer function, including polarization properties, of the device may be obtained independent of the insertion losses in the system.Type: ApplicationFiled: June 27, 2003Publication date: December 30, 2004Inventors: Tsung-Ein Tsai, John N. Sweetser, Anders Grunnet-Jepsen, Ping Qu, Everett Wang, Yi Ding
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Publication number: 20040208451Abstract: A method, apparatus, and system for monitoring optical signals in a planar lightwave circuit (“PLC”) by tapping light from an optical transmission medium (e.g., a waveguide or optical fiber), into which a grating has been written, out of a plane of the optical transmission medium and onto a photosensitive device are disclosed herein. In one embodiment, a tilted grating, with an angle greater than about 6 degrees from normal to a central axis of the optical transmission medium may be written into a waveguide in the PLC at a location at which an attribute (e.g., a wavelength or power) of an optical signal is to be measured. A portion of an optical signal may then be reflected out of a plane of the optical transmission medium, and be detected by a photodetector positioned in a second plane, distinct from the plane of the optical transmission medium.Type: ApplicationFiled: May 8, 2002Publication date: October 21, 2004Inventors: Anders Grunnet-Jepsen, Alan Johnson, John N. Sweetser
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Patent number: 6801689Abstract: A waveguide may be translated relative to the optical system that creates the grating in the waveguide. Phase errors that arise from the writing process may be corrected by appropriate translations of the waveguide relative to the system that creates the grating. In some embodiments, the waveguide may be translated relative to a phase mask used to write a grating into the waveguide.Type: GrantFiled: April 30, 2002Date of Patent: October 5, 2004Assignee: Intel CorporationInventors: John N. Sweetser, Anders Grunnet-Jepsen, Pierre St. Hilaire, Alan Johnson
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Patent number: 6781701Abstract: A method, apparatus, and system for measuring optical phase and amplitude properties of an output optical field to characterize diffractive, refractive, and other optical elements to estimate, measure, and characterize an optical transfer function are disclosed herein. In a representative embodiment, a light source may generate an optical field incident to an optical element, such as a diffraction grating. An aperture plate may be positioned relative to the optical element to allow translation of at least one of the aperture plate or the optical element in a plane transverse to a surface normal of the optical element, resulting in an output optical field having spatially dependant amplitude and phase characteristics related to a position on the optical element and to the optical field incident to the optical element. The output optical field may then be detected and analyzed to characterize the optical transfer function of the optical element.Type: GrantFiled: April 5, 2002Date of Patent: August 24, 2004Assignee: Intel CorporationInventors: John N. Sweetser, Anders Grunnet-Jepsen