Patents by Inventor Marco Florentino
Marco Florentino 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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Publication number: 20200003971Abstract: Processes and apparatuses described herein reduce the manufacturing time, the cost of parts, and the cost of assembly per laser for photonic interconnects incorporated into computing systems. An output side of a laser assembly is placed against an input side of a silicon interposer (SiP) such that each pad in a plurality of pads positioned on the output side of the laser assembly is in contact with a respective solder bump that is also in contact with a corresponding pad positioned on the input side of the SiP. The laser assembly is configured to emit laser light from the output side into an input grating of the SiP. The solder bumps are heated to a liquid phase. Capillary forces of the solder bumps realign the laser assembly and the SiP while the solder bumps are in the liquid phase. The solder bumps are then allowed to cool.Type: ApplicationFiled: June 29, 2018Publication date: January 2, 2020Inventors: Ashkan Seyedi, Marco Florentino, Geza Kurczveil, Raymond G. Beausoleil
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Publication number: 20190068292Abstract: One example of a receiver includes a first stage, a second stage, a third stage, and an automatic gain controller. The first stage amplifies an input signal to provide a first signal. The second stage amplifies or attenuates the first signal to provide a second signal based on a tunable gain of the second stage. The tunable gain is adjusted in response to a differential signal. The third stage amplifies the second signal to provide an output signal. The automatic gain controller provides the differential signal based on a comparison between a peak voltage of the output signal and the sum of a common mode voltage of the output signal and an offset voltage.Type: ApplicationFiled: October 29, 2015Publication date: February 28, 2019Inventors: Kehan Zhu, Cheng Li, Marco Florentino
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Patent number: 10209445Abstract: Compact photonics platforms and methods of forming the same are provided. An example of a compact photonics platform includes a layered structure having an active region along a longitudinal axis, a facet having an angle no less than a critical angle formed at at least one longitudinal end of the active region, and a waveguide having at least one grating coupler positioned in alignment with the angled facet to couple light out to or in from the waveguide.Type: GrantFiled: May 11, 2018Date of Patent: February 19, 2019Assignee: Hewlett Packard Enterprise Development LPInventors: Di Liang, David A. Fattal, Marco Florentino, Zhen Peng, Charles M. Santori, Raymond G. Beausoleil
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Publication number: 20170061851Abstract: A pixel source for a visual presentation is disclosed. The pixel source can include a light source, a large gamut pixel, a subtractive mask, and a control input to control the subtractive mask. A display device is also disclosed comprising a light source array with a large gamut pixel array and subtractive mask array disposed thereon. In operation, wide-band light emitted from each light source can be modulated by each large gamut pixel to output a plurality of primary colors. Each subtractive mask can be controlled to block, partially transmit, or fully transmit any number of the outputted primary colors to produce color points that can be interpolated and half-toned to output a large gamut of secondaries for each pixel.Type: ApplicationFiled: April 30, 2014Publication date: March 2, 2017Inventors: Peter MOROVIC, Jan MOROVIC, David A. FATTAL, Marco FLORENTINO
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Publication number: 20150063750Abstract: An optical connector includes a first optical fiber and a second optical fiber. A first planar lens is positioned to operate on light exiting the first optical fiber to create a predetermined change in a wave front of the light. A second planar lens is positioned to accept the light from the first planar lens, the second planar lens focusing the light onto the second optical fiber. The first planar lens and second planar lens each include a regularly spaced array of posts with periodically varying diameters.Type: ApplicationFiled: January 10, 2012Publication date: March 5, 2015Inventors: David A. Fattal, Raymond G. Beausoleil, Marco Florentino, Paul Kessler Rosenberg
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Patent number: 8768132Abstract: A ridge waveguide with decreased optical losses from surface scattering includes a ridge waveguide with etched surfaces and an optical layer deposited on the ridge waveguide that substantially covers the etched surfaces. A method of reducing optical energy losses from scattering at etched surfaces of a ridge waveguide includes depositing a layer of optical material over the etched surfaces, the layer of optical material filling surface irregularities in the etched surfaces.Type: GrantFiled: October 16, 2008Date of Patent: July 1, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Duncan Stewart, Marco Florentino, Nathaniel Quitoriano, Charles Santori
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Patent number: 8705972Abstract: Systems and methods are provided for modulating, channels in dense wavelength division multiplexing (“DWDM”) systems. In one aspect, a modulation and wavelength division multiplexing system includes a channel source and a waveguide tree structure disposed on a substrate. The tree structure includes waveguides branching from a root waveguide. The waveguides include two or more terminus waveguides coupled to the channel source. The system also includes one or more modulator arrays disposed on the substrate. Each modulator array is optically coupled to one of the two or more terminus waveguides and is configured to modulate channels injected into a terminus waveguide from the channel source to produce corresponding optical signals that propagate from the terminus waveguide along one or more of the waveguides to the root waveguide.Type: GrantFiled: May 11, 2010Date of Patent: April 22, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Moray McLaren, Nathan Lorenzo Binkert, Alan Lynn Davis, Marco Florentino
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Patent number: 8547727Abstract: A memristive routing device includes a memristive matrix, mobile dopants moving with the memristive matrix in response to programming electrical fields and remaining stable within the memristive matrix in the absence of the programming electrical fields; and at least three electrodes surrounding the memristive matrix. A method for tuning electrical circuits with a memristive device includes measuring a circuit characteristic and applying a programming voltage to the memristive device which causes motion of dopants within the memristive device to alter the circuit characteristic. A method for increasing a switching speed of a memristive device includes drawing dopants from two geometrically separated locations into close proximity to form two conductive regions and then switching the memristive device to a conductive state by applying a programming voltage which rapidly merges the two conductive regions to form a conductive pathway between a source electrode and a drain electrode.Type: GrantFiled: December 12, 2008Date of Patent: October 1, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Wei Wu, John Paul Strachan, R. Stanley Williams, Marco Florentino, Shih-Yuan Wang, Nathaniel J. Quitoriano, Hans S. Cho, Julien Borghetti, Sagi Varghese Mathai
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Patent number: 8493890Abstract: Transmitting nodes broadcast chirped signals on a wireless network. The transmitting nodes are time-synchronized with each other and location of the transmitting nodes is known. A receiver node detects beat frequencies created by pairs of chirped signals from different pairs of transmitting nodes. Time delay differences between chirped signals in respective beat frequency pairs are determined. The receiver node's location is determined in view of the time delay differences.Type: GrantFiled: April 13, 2010Date of Patent: July 23, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Wei Wu, Marco Florentino, R. Stanley Williams
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Publication number: 20130100528Abstract: Planar reflective devices that operate as reflective blazed diffraction gratings are disclosed. In one aspect, a reflective device includes a substrate with a planar surface, and a planar, high-contrast, sub-wavelength grating disposed on the surface. The grating is divided into a number of regions that each reflect incident light of a particular wavelength and with a particular angle of incidence into a single diffraction order and associated diffraction angle.Type: ApplicationFiled: October 25, 2011Publication date: April 25, 2013Inventors: Marco Florentino, David A. Fattal, Raymond G. Beausoleil, Jingjing Li, Zhen Peng
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Publication number: 20120189026Abstract: Various embodiments of the present invention relate to electronically tunable ring resonators. In one embodiment of the present invention, a resonator structure (300,1200) includes an inner resonator disposed on a surface of a substrate, and a phase-change layer (304,1204) covering the resonator. The resonance wavelength of the resonator structure can be selected by applying of a first voltage that changes the effective refractive index of the inner resonator and by applying of a second voltage that changes the effective refractive index of the phase-change layer.Type: ApplicationFiled: October 8, 2009Publication date: July 26, 2012Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Nathan Lorenzo Binkert, Jung Ho Ahn, Marco Florentino
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Patent number: 8171051Abstract: Various embodiments of the present invention relate to oblivious transfer protocols and to system for performing oblivious transfer. Embodiments of the present invention include a private data sampling protocol that is designed to balance the competing privacy interest of a database user and a database owner. Protocol embodiments enable the database user to obtain a fixed size random sample of the available data held by the database owner without the database owner learning which bits of data were accessed.Type: GrantFiled: October 15, 2008Date of Patent: May 1, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: David A. Fattal, Marco Florentino, Raymond G. Beausoleil
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Publication number: 20120027348Abstract: An optical apparatus includes an optical fiber formed of a core surrounded by cladding, in which the optical fiber includes an end portion. In addition, an optical layer composed of a material having a relatively high refractive index is positioned on the end portion, in which the optical layer includes a non-periodic sub-wavelength grating positioned in optical communication with the core.Type: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Inventors: David A. Fattal, Marco Florentino, Jingjing Li, Raymond G. Beausoleil
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Publication number: 20110280579Abstract: Systems and methods are provided for modulating, channels in dense wavelength division multiplexing (“DWDM”) systems. In one aspect, a modulation and wavelength division multiplexing system includes a channel source and a waveguide tree structure disposed on a substrate. The tree structure includes waveguides branching from a root waveguide. The waveguides include two or more terminus waveguides coupled to the channel source. The system also includes one or more modulator arrays disposed on the substrate. Each modulator array is optically coupled to one of the two or more terminus waveguides and is configured to modulate channels injected into a terminus waveguide from the channel source to produce corresponding optical signals that propagate from the terminus waveguide along one or more of the waveguides to the root waveguide.Type: ApplicationFiled: May 11, 2010Publication date: November 17, 2011Inventors: Moray McLaren, Nathan Lorenzo Binkert, Alan Lynn Davis, Marco Florentino
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Publication number: 20110249594Abstract: Transmitting nodes broadcast chirped signals on a wireless network. The transmitting nodes are time-synchronized with each other and location of the transmitting nodes is known. A receiver node detects beat frequencies created by pairs of chirped signals from different pairs of transmitting nodes. Time delay differences between chirped signals in respective beat frequency pairs are determined. The receiver node's location is determined in view of the time delay differences.Type: ApplicationFiled: April 13, 2010Publication date: October 13, 2011Inventors: Wei Wu, Marco Florentino, R. Stanley Williams
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Publication number: 20110182107Abstract: A memristive routing device (200) includes a memristive matrix (240), mobile dopants (255) moving with the memristive matrix (240) in response to programming electrical fields and remaining stable within the memristive matrix (240) in the absence of the programming electrical fields; and at least three electrodes (210, 220, 230) surrounding the memristive matrix (240). A method for tuning electrical circuits with a memristive device (900) includes measuring a circuit characteristic (805) and applying a programming voltage to the memristive device (900) which causes motion of dopants within the memristive device (900) to alter the circuit characteristic (805).Type: ApplicationFiled: December 12, 2008Publication date: July 28, 2011Applicant: Hewlett-Packard Development Company, L.P.Inventors: Wei Wu, John Paul Strachen, R. Stanely Williams, Marco Florentino, Shih-Yuan Wang, Hans S. Cho, Julien Borghetti, Sagi Varghese Mathai
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Publication number: 20110163336Abstract: A light emitting diode device is described which includes at least one planar non-periodic high-index-contrast grating. The light emitting diode device includes a cavity formed between a reflective optical element and a transmissive optical element. One or both of the optical elements can be a planar non-periodic high-index-contrast grating. The transmissive optical element can be a collimating lens used to collimate incident beams of light while the reflective optical element can be a parabolic reflector used to reflect incident beams of light along a direction opposite to an incidence direction. A light emitter can be disposed within the cavity and can emit beams of light.Type: ApplicationFiled: January 5, 2010Publication date: July 7, 2011Inventors: Zhen Peng, Marco Florentino
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Patent number: 7907811Abstract: An optical waveguide includes a silicon wafer having two opposed sides. A first notch is defined in each of the two opposed sides such that the silicon wafer includes a head portion and a first stem portion.Type: GrantFiled: October 31, 2008Date of Patent: March 15, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: David Fattal, Marco Florentino, Qianfan Xu
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Publication number: 20100094842Abstract: Various embodiments of the present invention relate to oblivious transfer protocols and to system for performing oblivious transfer. Embodiments of the present invention include a private data sampling protocol that is designed to balance the competing privacy interest of a database user and a database owner. Protocol embodiments enable the database user to obtain a fixed size random sample of the available data held by the database owner without the database owner learning which bits of data were accessed.Type: ApplicationFiled: October 15, 2008Publication date: April 15, 2010Inventors: David A. Fattal, Marco Florentino, Raymond G. Beausoleil
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Patent number: 7546000Abstract: Various embodiments of the present invention are directed to color-center-based quantum computer architectures that are both scalable and defect tolerant and to methods for fabricating color-center-based quantum computer architectures. In one embodiment of the present invention, a node of a quantum computer architecture comprises a first photonic device configured to transmit electromagnetic waves, a color center embedded in diamond and coupled to the first photonic device, and a switch located between the first photonic device and a bus waveguide. The switch can be configured to selectively control transmission of electromagnetic waves between the bus waveguide and the color center.Type: GrantFiled: September 7, 2006Date of Patent: June 9, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Sean M. Spillane, Raymond G. Beausoleil, Charles Santori, Marco Florentino