Patents by Inventor G. A. Neville Connell
G. A. Neville Connell 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: 6454384Abstract: A method of marking is disclosed in which a propellant stream is passed through a channel and directed toward a substrate. Liquid marking material, such as ink, is controllably introduced into the propellant stream and imparted with sufficient kinetic energy thereby to be made incident upon a substrate. A multiplicity of channels for directing the propellant and marking material allow for high throughput, high resolution marking. Multiple marking materials may be introduced into the channel and mixed therein prior to being made incident on the substrate, or mixed or superimposed on the substrate without registration. One example is a single-pass, full-color printer.Type: GrantFiled: September 30, 1998Date of Patent: September 24, 2002Assignee: Xerox CorporationInventors: Eric Peeters, Jaan Noolandi, Raj B. Apte, Philip D. Floyd, Jonathan A. Small, Gregory J. Kovacs, Meng H. Lean, Armin R. Volkel, Steven B. Bolte, An-Chang Shi, Frederick J. Endicott, Gregory B. Anderson, Dan A. Hays, Joel A. Kubby, Warren B. Jackson, Andrew A. Berlin, G. A. Neville Connell
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Patent number: 6416158Abstract: A device for the transport and/or metering of marking material includes a plurality of phased electrodes, for example formed on a substrate. An electrostatic traveling wave may be generated along the electrodes to sequentially attract particles of marking material, and thereby transport them to a desired location. The electrodes may be formed in a planar structure. A matrix interconnection scheme allows for reduced lead count.Type: GrantFiled: September 29, 1999Date of Patent: July 9, 2002Assignee: Xerox CorporationInventors: Philip D. Floyd, Tuan Anh Vo, Kaiser H. Wong, Gregory B. Anderson, Eric Peeters, Jaan Noolandi, Meng H. Lean, Armin R. Volkel, John E. Northrup, Jurgen Daniel, G. A. Neville Connell
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Publication number: 20020086293Abstract: An improved method for the sequencing of DNA fragments is provided. The method includes using a known process for DNA fragment separation, such as capillary electrophoresis, and imaging the resultant gel plate with a full-width array scanner or a two-dimensional amorphous silicon image sensor array. The DNA sample is placed within a well of the separation apparatus, such as a capillary tube or plurality thereof. The separation apparatus is then placed in a buffer. An electric field is then applied, forming a bias between the ends along which the sample is separated. Once separated, the large area detector scans the entire gel plate and resultant image data is provided. By way of the improved method, the entire gel plate can be scanned at the same time and repeatedly, resulting in greater accuracy and a shorter time to sequence.Type: ApplicationFiled: December 28, 2000Publication date: July 4, 2002Applicant: XEROX CORPORATIONInventors: Jaan Noolandi, Robert A. Street, G.A. Neville Connell
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Patent number: 6328409Abstract: A marking apparatus is disclosed in which a propellant stream is passed through a channel and directed toward a substrate. A liquid marking material, such as ink, is controllably introduced into the propellant stream and imparted with sufficient kinetic energy thereby to be made incident upon a substrate. A multiplicity of channels for directing the propellant and marking material allow for high throughput, high resolution marking. Multiple marking materials may be introduced into the channel and mixed therein prior to being made incident on the substrate, or mixed or superimposed on the substrate without registration. One example is a single-pass, full-color printer.Type: GrantFiled: September 30, 1998Date of Patent: December 11, 2001Assignee: Xerox CorporationInventors: Eric Peeters, Jaan Noolandi, Raj B. Apte, Philip D. Floyd, Jonathan A. Small, Gregory J. Kovacs, Meng H. Lean, Armin R. Volkel, Steven B. Bolte, An-Chang Shi, Frederick J. Endicott, Gregory B. Anderson, Dan A. Hays, Joel A. Kubby, Warren B. Jackson, Andrew A. Berlin, G. A. Neville Connell
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Patent number: 6201633Abstract: A micro-electromechanical bistable shutter display device is provided capable of being implemented for both small screen, high resolution devices and for large billboard-type displays. The micro-electromechanical shutter assembly has bi-stability characteristics which allow the use of only a holding voltage to maintain an image. The micro-electromechanical shutter assembly includes a shutter having petal-like shutter segments covering reflective or transmittive films. To expose the film in a particular shutter assembly, its shutter segments are moved from the horizontal to a vertical position using electrostatic attraction forces to “collapse” the torsionally-hinged shutter segments. The shutter assembly can have a number of segments, as long as the resulting shutter assembly shape can be stacked to form a dense 2D array.Type: GrantFiled: June 7, 1999Date of Patent: March 13, 2001Assignee: Xerox CorporationInventors: Eric Peeters, Jackson Ho, Feixia Pan, Raj B. Apte, Joel A. Kubby, Ronald T. Fulks, Decai Sun, Patrick Y. Maeda, David Fork, Robert Thornton, Ross Bringans, G. A. Neville Connell, Philip Don Floyd, Tuan Anh Vo, Koenraad Van Schuylenbergh
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Patent number: 6180428Abstract: A micro-machined movable light emitting assembly is formed on or from an undoped or pure III-V substrate or formed on or from a doped III-V substrate. The movable light emitting assemblies are to be actuated using force generators, to generate the various mechanical degrees of freedom depending on the type of stage suspension and actuation.Type: GrantFiled: October 15, 1998Date of Patent: January 30, 2001Assignee: Xerox CorporationInventors: Eric Peeters, Decai Sun, G. A. Neville Connell, Ross D. Bringans, Raj B. Apte, Thomas L. Paoli, Patrick Y. Maeda, David K. Fork, Joel A. Kubby, Philip D. Floyd
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Patent number: 6121983Abstract: A solid state laser array is multiplexed using an array of micromirrors to permit high resolution printing in a wide format. Each laser in the laser array and each micromirror in the mirror array is individually controlled. The laser array may be an array of VCSELs produced on a GaAs substrate.Type: GrantFiled: November 19, 1998Date of Patent: September 19, 2000Assignee: Xerox CorporationInventors: David K. Fork, G. A. Neville Connell, Eric Peeters, Robert L. Thornton, Patrick Y. Maeda, Ross D. Bringans, Thomas L. Paoli, Joel A. Kubby, Decai Sun, Philip D. Floyd
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Patent number: 6116756Abstract: A micro-machined movable light emitting assembly is formed on or from an undoped or pure III-V substrate or formed on or from a doped III-V substrate. The movable light emitting assemblies are to be actuated using force generators, to generate the various mechanical degrees of freedom depending on the type of stage suspension and actuation.Type: GrantFiled: October 15, 1998Date of Patent: September 12, 2000Assignee: Xerox CorporationInventors: Eric Peeters, Decai Sun, G. A. Neville Connell, Ross D. Bringans, Raj B. Apte, Thomas L. Paoli, Patrick Y. Maeda, David K. Fork, Joel A. Kubby, Philip D. Floyd
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Patent number: 6005682Abstract: The system achieves high-resolution imaging with low-resolution two-dimensional imagers whose sensors are only a fraction of a selected pixel area. Sensors are stepped across an image with an optical or mechanical stepper to acquire an image at each sensor position. Thereby, resolution is defined by a step size which is comparable to the sensor size, rather than by pixel resolution. The system thus uses multiple image, obtained from individual sensors, which have a sensed area substantially less than the area of the pixels of the sensor array. Such rescanning is accomplished by movable mirrors or lenses that are disposed between an illuminated specimen and a sensor area.Type: GrantFiled: June 7, 1995Date of Patent: December 21, 1999Assignee: Xerox CorporationInventors: Xiaodong Wu, G. A. Neville Connell, Robert A. Street, Vittorio Castelli, Harold M. Anderson, Richard Weisfield
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Patent number: 5977612Abstract: The present invention relates to electronic devices formed in crystallites of III-V nitride materials. Specifically, the present invention simplifies the processing technology required for the fabrication of high-performance electronic devices in III-V nitride materials.Type: GrantFiled: December 20, 1996Date of Patent: November 2, 1999Assignee: Xerox CorporationInventors: David P. Bour, Fernando A. Ponce, G. A. Neville Connell, Ross D. Bringans, Noble M. Johnson, Werner K. Goetz, Linda T. Romano
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Patent number: 5926726Abstract: A method of manufacturing a p-type III-V nitride compound semiconductor utilizing vapor phase epitaxy is carried out in a MOCVD reactor by growing a III-V nitride compound semiconductor in the reactor employing a reaction gas containing a p-type impurity and then annealing in-situ the nitride compound semiconductor to bring about acceptor activation, the annealing carried out at a temperature below the growth temperature of the III-V nitride compound semiconductor during reactor cooldown. A nitrogen (N) reactant or precursor is provided in the reactor during the annealing step which can produce a reactive form of N capable of suppressing surface decomposition and does not produce atomic hydrogen. Also, acceptor activation is achieved through the employment of a cap layer comprising a n-type Group III-V nitride material, e.g., n-GaN, grown on the p-doped Group III-V nitride layer preventing the occurrence of hydrogenation of the underlying p-doped layer during cooldown.Type: GrantFiled: September 12, 1997Date of Patent: July 20, 1999Assignees: SDL, Inc., Xerox CorporationInventors: David P. Bour, G.A. Neville Connell, Donald R. Scifres
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Patent number: 5766981Abstract: Methods for defect-free impurity-induced laser disordering (IILD) of AlGaInP and AlGaAs heterostructures. Phosphorus-doped or As-doped films are used in which silicon serves as a diffusion source and silicon nitride acts as a barrier for selective IILD. High-performance, index-guided (AlGa).sub.0.5 In.sub.0.5 P lasers may be fabricated with this technique, analogous to those made in the AlGaAs material system. The deposition of the diffusion source films preferably is carried out in a low pressure reactor. Also disclosed is a scheme for reducing or eliminating phosphorus overpressure during silicon diffusion into III-V semiconducting material by adding a pre-diffusion anneal step. Defects produced during intermixing are also reduced using a GaInP or GaInP/GaAs cap.Type: GrantFiled: January 4, 1995Date of Patent: June 16, 1998Assignee: Xerox CorporationInventors: Robert L. Thornton, Ross D. Bringans, G. A. Neville Connell, David W. Treat, David P. Bour, Fernando A. Ponce, Noble M. Johnson, Kevin J. Beernink
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Patent number: 5444463Abstract: A single pass color xerographic printing system with a single polygon, single optical system Raster Output Scanning (ROS) system has a dual wavelength laser diode source for the ROS which images the dual beams at a single station as closely spaced spots on a dual layer photoreceptor with each photoreceptor layer sensitive to or accessible by only one of the two wavelengths.Type: GrantFiled: December 9, 1992Date of Patent: August 22, 1995Assignee: Xerox CorporationInventors: Gregory J. Kovacs, G. A. Neville Connell
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Patent number: 5384797Abstract: A monolithic multi-wavelength laser diode array having a composite active region of at least two dissimilar quantum well layers that are partially mixed in at least one of their constituent atomic species in at least one area of the active region. Different areas of the active region are characterized by different emission wavelengths determined by the degree of intermixing. An impurity free interdiffusion, such as vacancy enhanced interdiffusion, is used to provide the intermixing. Each area may have one or more waveguides and distributed Bragg reflector gratings tuned to the emission wavelength of the corresponding area of the active region. Each area or waveguide may also be separately pumped with an individually addressable current injection electrode. The laser output may be coupled into a ferroelectric frequency doubler integrally formed on the array substrate.Type: GrantFiled: September 21, 1992Date of Patent: January 24, 1995Assignees: SDL, Inc., Xerox CorporationInventors: David F. Welch, Robert G. Waarts, Jo S. Major, Ross D. Bringans, David K. Fork, G. A. Neville Connell, Robert L. Thornton
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Patent number: 5377022Abstract: A paper handling device, which uses a two-dimensional imaging sensor array, can quickly image a stack of documents. The two-dimensional array is positioned in direct contact with a document on top of the stack of documents. The sensor array images the document and is then lifted away from the page. The document is moved to an output tray. A first modification allows for recirculation of the documents for two-sided copying. A second modification, positions the sensor array above the documents in the output tray after the next document is moved from the input tray. With each of these designs, around one hundred pages can be imaged in less than a minute.Type: GrantFiled: December 29, 1993Date of Patent: December 27, 1994Assignee: Xerox CorporationInventors: Robert A. Street, G. A. Neville Connell
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Patent number: 5355382Abstract: Nonmonolithic laser arrays having lasing elements mounted on a composite support that enables accurate positioning and separation of the lasing elements, and that enables low thermal, optical, and electrical cross-talk. The support includes a low thermal diffusivity region surrounded by high thermal diffusivity regions which have defined mounting surfaces onto which the lasing elements mount. Heat generated in the lasing elements is conducted away by the high thermal diffusivity regions, while the low thermal diffusivity region reduces thermal cross-talk between the lasing elements. Beneficially, the support assists current flow to (or from) the lasing elements.Type: GrantFiled: November 22, 1993Date of Patent: October 11, 1994Assignee: Xerox CorporationInventors: Gregory J. Kovacs, Harlan F. Chung, G. A. Neville Connell, R. Donald Yingling, Jr., Rose M. Donaldson, Thomas L. Paoli
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Patent number: 5347303Abstract: A full color xerographic printing system, either double pass or single pass, with a single polygon, single optical system Raster Output Scanning (ROS) system has a dual wavelength laser diode source for the ROS which images the dual beams at a single station as closely spaced spots or at two stations as closely spaced spots on a dual layer photoreceptor with each photoreceptor layer sensitive to or accessible by only one of the two wavelengths.Type: GrantFiled: January 4, 1993Date of Patent: September 13, 1994Assignee: Xerox CorporationInventors: Gregory J. Kovacs, G. A. Neville Connell
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Patent number: 4796964Abstract: Plural overlapped Gaussian-shaped solid state semiconductor laser beams are focused onto the recording medium surface of a printer and will not optically interfere and cause any nonuniformity in printing due to optical interference because the respective laser beams are sequenced in ON/OFF operation so that relative to two or more overlapping laser beam spots focused to a recording medium surface, only one laser beam will be ON at any given time.Type: GrantFiled: March 9, 1988Date of Patent: January 10, 1989Assignee: Xerox CorporationInventors: G. A. Neville Connell, Daniel C. Kowalski
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Patent number: 4689291Abstract: Monolithic microlenses and microlens arrays are manufactured on opto-electronic devices and other substrates by using sharp edge pedestals to confine the lateral flow of a molten lens material. The lens material wets the upper surfaces of the pedestals, but the pedestal edges confine the flow, so the lens material conforms to the shape of the pedestal surface and assumes a semi-arcuate profile due to its surface tension. Spin coating and photolithographic patterning may be employed to form the pedestals and to deposit the lens material thereon. The lens material is melted after being deposited, so the pedestals advantageously are stabilized to prevent them from deforming at the temperature of the molten lens material.Type: GrantFiled: August 30, 1985Date of Patent: August 25, 1987Assignee: Xerox CorporationInventors: Zoran D. Popovic, Robert A. Sprague, G. A. Neville Connell
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Patent number: 4638470Abstract: A system for providing a read signal from a magneto-optic medium wherein a non-rotated leaky beam splitter is utilized to provide both s and p components of the light reflected from the medium to a differential detector arrangement. The beam splitter, which may be of conventional construction and which has the reflected beam striking its medium-facing face at normal incidence, is operated in a leaky mode by utilizing it with a read beam having a wavelength differing from the wavelength for which the beam splitter was designed. One face of the beam splitter can be cut at a small angle off normal to prevent any p-polarized light from entering the differential detector arrangement directly from the light source.Type: GrantFiled: May 9, 1984Date of Patent: January 20, 1987Assignee: Xerox CorporationInventors: G. A. Neville Connell, Jimmy D. Godwin