Patents by Inventor Robert N. Bicknell
Robert N. Bicknell 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).
-
Patent number: 9027402Abstract: An acceleration-sensing device having error correction includes a stator having at least one conductor affixed to a surface and a proof mass having a first conductor affixed at a first location relative to the at least one conductor affixed to a surface of the stator. The proof mass includes a second conductor affixed at a second location relative to the at least one conductor affixed to a surface of the stator, wherein an excitation signal applied to the first conductor of the proof mass brings about a force on the proof mass in the plane of motion of the proof mass that is substantially equally opposed by a force resulting from an excitation signal applied to the second conductor of the proof mass in the plane of motion of the proof mass.Type: GrantFiled: April 30, 2010Date of Patent: May 12, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Brian D. Homeijer, Robert N. Bicknell
-
Patent number: 8929741Abstract: An optical interconnect includes a first circuit board having an optical source and an optical receiver; and a second circuit board having data source and an optical modulator optically coupled with the optical source and optical receiver, wherein the optical modulator is configured to encode data from the data source into an optical signal from the optical source. The optical receiver is configured to receive the optical signal from the optical modulator. A method of optical communication includes generating on a first circuit board an optical signal directed at a second circuit board; modulating the optical signal with data at the second circuit board; reflecting the optical signal to the first circuit board; and demodulating the optical signal to receive the data at the first circuit board.Type: GrantFiled: July 30, 2007Date of Patent: January 6, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: David A. Fattal, Robert N. Bicknell, Charles Santori, Wei Wu
-
Publication number: 20130036789Abstract: An acceleration-sensing device having error correction includes a stator having at least one conductor affixed to a surface and a proof mass having a first conductor affixed at a first location relative to the at least one conductor affixed to a surface of the stator. The proof mass includes a second conductor affixed at a second location relative to the at least one conductor affixed to a surface of the stator, wherein an excitation signal applied to the first conductor of the proof mass brings about a force on the proof mass in the plane of motion of the proof mass that is substantially equally opposed by a force resulting from an excitation signal applied to the second conductor of the proof mass in the plane of motion of the proof mass.Type: ApplicationFiled: April 30, 2010Publication date: February 14, 2013Inventors: Brian D. Homeijer, Robert N. Bicknell
-
Patent number: 7627013Abstract: A light source module for use in display systems is provided herein. According to one exemplary embodiment, the light source module includes a plurality of coherent light sources, and a diffraction grating in optical communication with the coherent light source, the diffraction grating being configured to provide feedback to the coherent light source to produce a plurality of spectra over a broad spectrum.Type: GrantFiled: February 3, 2006Date of Patent: December 1, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Robert N. Bicknell, Paul Benning, Alexander Govyadinov
-
Patent number: 7548671Abstract: Optical devices including waveguide grating structures are described. In accordance with one embodiment, an optical device is provided comprising a horizontal waveguide grating structure having at least one waveguiding layer and at least one subwavelength periodic grating layer. The optical device further comprises upper and lower cladding layers immediately adjoining respective upper and lower surfaces of the waveguide grating structure and having refractive indices lower than a lowest-index one of the waveguiding layers, incident radiation propagating through one of the upper and lower cladding layers toward the waveguide grating structure. The waveguide grating structure is configured for peak reflection of the incident radiation at a peak reflection frequency. A cumulative thickness of the waveguiding layers is less than one tenth of a free space wavelength of the incident radiation at the peak reflection frequency divided by an average refractive index of the waveguiding layers.Type: GrantFiled: July 16, 2007Date of Patent: June 16, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Wei Wu, David Fattal, Charles Santori, Robert N. Bicknell, Shih-Yuan Wang, R. Stanley Williams, Nathaniel J. Quitoriano
-
Publication number: 20090034985Abstract: An optical interconnect includes a first circuit board having an optical source and an optical receiver; and a second circuit board having data source and an optical modulator optically coupled with the optical source and optical receiver, wherein the optical modulator is configured to encode data from the data source into an optical signal from the optical source. The optical receiver is configured to receive the optical signal from the optical modulator. A method of optical communication includes generating on a first circuit board an optical signal directed at a second circuit board; modulating the optical signal with data at the second circuit board; reflecting the optical signal to the first circuit board; and demodulating the optical signal to receive the data at the first circuit board.Type: ApplicationFiled: July 30, 2007Publication date: February 5, 2009Inventors: David A. Fattal, Robert N. Bicknell, Charles Santori, Wei Wu
-
Publication number: 20090022448Abstract: Optical devices including waveguide grating structures are described. In accordance with one embodiment, an optical device is provided comprising a horizontal waveguide grating structure having at least one waveguiding layer and at least one subwavelength periodic grating layer. The optical device further comprises upper and lower cladding layers immediately adjoining respective upper and lower surfaces of the waveguide grating structure and having refractive indices lower than a lowest-index one of the waveguiding layers, incident radiation propagating through one of the upper and lower cladding layers toward the waveguide grating structure. The waveguide grating structure is configured for peak reflection of the incident radiation at a peak reflection frequency. A cumulative thickness of the waveguiding layers is less than one tenth of a free space wavelength of the incident radiation at the peak reflection frequency divided by an average refractive index of the waveguiding layers.Type: ApplicationFiled: July 16, 2007Publication date: January 22, 2009Inventors: Wei Wu, David Fattal, Charles Santori, Robert N. Bicknell, Shih-Yuan Wang, R. Stanley Williams, Nathaniel J. Quitoriano
-
Patent number: 7239544Abstract: An electrical memory component is provided, comprising read/write probes and a chalcogenide storage media. Each read/write probe is adapted for selective electrical connection to a memory portion of the chalcogenide storage media and for performing read and write operations upon the memory portion. The chalcogenide storage media has a second plurality of memory portions, and is movably mounted relative to the first plurality of read/write probes for selective electrical connection of the read/write probes to a subset of the memory portions.Type: GrantFiled: September 14, 2004Date of Patent: July 3, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zhizhang Chen, Lori Tully, Hang Liao, Robert N. Bicknell
-
Patent number: 7151008Abstract: A method of forming a diode structure for a phase-change data storage array, having multiple thin film layers adapted to form a plurality of data storage cell diodes is disclosed. The method includes depositing a first diode layer of CuInSe material on a substrate and depositing a second diode layer of phase-change material on the first diode layer.Type: GrantFiled: October 17, 2005Date of Patent: December 19, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Gary R. Ashton, Gary A. Gibson, Robert N. Bicknell-Tassius
-
Patent number: 6979838Abstract: An ultra-high density data storage device using phase-change diode memory cells, and having a plurality of emitters for directing beams of directed energy, a layer for forming multiple data storage cells and a layered diode structure for detecting a memory or data state of the storage cells, wherein the device comprises a phase-change data storage layer capable of changing states in response to the beams from the emitters, and a second layer forming one layer in the layered diode structure, the second layer comprising a material containing copper, indium and selenium. A method of forming a diode structure for a phase-change data storage array, having multiple thin film layers adapted to form a plurality of data storage cell diodes, comprises depositing a first diode layer of CuInSe material on a substrate and depositing a second diode layer of phase-change material on the first diode layer.Type: GrantFiled: September 3, 2003Date of Patent: December 27, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Gary R. Ashton, Gary A. Gibson, Robert N. Bicknell-Tassius