Patents by Inventor David J. Hall
David J. Hall 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).
-
Publication number: 20240126147Abstract: An apparatus has a lens assembly which has: a front region with an entrance window of the lens assembly; a window structure at the entrance window; a back region; a lens between the window structure and the back region; and a heater coupled to heat the window structure. The lens assembly includes a reflective surface. The front region is on a first side of the reflective surface. The back region is on a second side of the reflective surface. The reflective surface reflects thermal radiation generated by the heater. The reflected radiation is reflected towards the first side. Other features are also provided.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Inventors: Nile E. Fairfield, William J. Hall, Jace Dispenza, Sean Tauber, David Ovrutsky, Stephanie Lin
-
Patent number: 11925706Abstract: Embodiments of the present application relate to batches of bupivacaine multivesicular liposomes (MVLs) prepared by a commercial manufacturing process using independently operating dual tangential flow filtration modules.Type: GrantFiled: May 30, 2023Date of Patent: March 12, 2024Assignee: Pacira Pharmaceuticals, Inc.Inventors: Jeffrey S. Hall, David J. Turnbull, John J. Grigsby, Jr., Soroush M. Ardekani, Kathleen D. A. Los
-
Patent number: 9306444Abstract: A control system for a harmonic neutralized frequency changer. The control system includes a processor, a narrow band harmonic controller and a fundamental current controller. The narrow band harmonic controller is communicably connected to the processor and is configured to reduce a positive sequence component, a negative sequence component and a zero sequence component of a harmonic generated by a cycloconverter of the harmonic neutralized frequency changer. The fundamental current controller is communicably connected to the processor and is configured to reduce a fundamental frequency component of current flowing in a neutralization inverter of the harmonic neutralized frequency changer.Type: GrantFiled: December 18, 2013Date of Patent: April 5, 2016Assignee: Curtiss-Wright Electro-Mechanical CorporationInventors: James P. Kapinski, David J. Hall
-
Publication number: 20150171735Abstract: A control system for a harmonic neutralized frequency changer. The control system includes a processor, a narrow band harmonic controller and a fundamental current controller. The narrow band harmonic controller is communicably connected to the processor and is configured to reduce a positive sequence component, a negative sequence component and a zero sequence component of a harmonic generated by a cycloconverter of the harmonic neutralized frequency changer. The fundamental current controller is communicably connected to the processor and is configured to reduce a fundamental frequency component of current flowing in a neutralization inverter of the harmonic neutralized frequency changer.Type: ApplicationFiled: December 18, 2013Publication date: June 18, 2015Applicant: Curtiss-Wright Electro-Mechanical Corp.Inventors: James P. KAPINSKI, David J. HALL
-
Publication number: 20140154184Abstract: A method for imaging leverages the fluorescence lifetime of a fluorescent Si-containing particle to distinguish from background fluorescence. A particle is introduced into tissue. An excitation light pulse is applied to excite luminescence from the fluorescent Si-containing particle. Time-gated measuring of a responsive luminescence signal identifies the particle. In preferred embodiments the particle is coated or encapsulated with an organic material. The fluorescence lifetime of particles can be controlled during manufacture, such as by oxidation levels, quenching treatments, or by aging. This permits introducing and using groups of particles in imaging that have unique lifetimes and multiple time gating can be used to identify different particles or to monitor the change in lifetime of a single set of particles as they respond to a biochemical stimulus. The particles can also be functionalized for affinity to particular tissues and can be loaded with treatment molecules.Type: ApplicationFiled: April 27, 2012Publication date: June 5, 2014Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Michael J. Sailor, Luo Gao, David J. Hall, Robert Mattrey
-
Patent number: 8076881Abstract: A system. The system includes a first module, a second module communicably connected to the first module, a third module communicably connected to the first module, and a fourth module communicably connected to the third module. The first module is configured for determining an angle. The angle is defined by a first rotating reference frame having an axis aligned with a permanent magnet flux of a permanent magnet motor, and a vector of a motor magnetizing flux of the permanent magnet motor. The second module is configured for defining a second rotating reference frame having an axis aligned with the vector, and for transforming a two-phase set of direct currents from the first rotating reference frame to the second rotating reference frame. The first and second rotating reference frames are synchronized. The third module is configured for generating a first direct current reference signal associated with the second rotating reference frame.Type: GrantFiled: June 16, 2009Date of Patent: December 13, 2011Assignee: Curtiss-Wright Electro-Mechanical Corp.Inventors: David J. Hall, Mark P. Krefta
-
Patent number: 8021914Abstract: A method of manufacture of cadmium mercury telluride (CMT) is disclosed. The method involves growing one or more buffer layers on a substrate by molecular beam epitaxy (MBE). Subsequently at least one layer of cadmium mercury telluride, Hg1-xCdxTe where x is between 0 and 1 inclusive, is grown by metal organic vapour phase epitaxy (MOVPE). The use of MBE to grow buffer layers allows a range of substrates to be used for CMT growth. The MBE buffer layers provide the correct orientation for later MOVPE growth of CMT and also prevent chemical contamination of the CMT and attack of the substrate during MOVPE. The method also allows for device processing of the CMT layers to be performed with further MOVPE growth of crystalline CMT layers and/or passivation layers. The invention also relates to new devices formed by the method.Type: GrantFiled: April 5, 2005Date of Patent: September 20, 2011Assignee: Qinetiq LimitedInventors: Janet E Hails, Jean Giess, John W Cairns, Andrew Graham, Louise Buckle, David J Hall, Neil T Gordon
-
Patent number: 7892879Abstract: This invention relates to the manufacture of Cadmium Mercury Telluride (CMT) on patterned silicon, especially to growth of CMT on silicon substrates bearing integrated circuitry. The method of the invention involves growing CMT in selected growth windows on the silicon substrate by first growing one or more buffer layers by MBE and then growing the CMT by MOVPE. The growth windows may be defined by masking the area outside of the growth windows. Growth within the growth windows is crystalline whereas any growth outside the growth windows is polycrystalline and can be removed by etching. The invention offers a method of growing CMT structures directly on integrated circuits removing the need for hybridisation.Type: GrantFiled: August 1, 2005Date of Patent: February 22, 2011Assignee: Qinetiq LimitedInventors: Louise Buckle, John W Cairns, Jean Giess, Neil T Gordon, Andrew Graham, Janet E Hails, David J Hall, Colin J Hollier, Graham J Pryce, Andrew J Wright
-
Patent number: 7541968Abstract: An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection a one before trying to detect when and where the intruder has penetrated and moved within the protection zone.Type: GrantFiled: October 29, 2006Date of Patent: June 2, 2009Assignee: Time Domain Corp.Inventors: David J. Hall, Scott M. Yano, Hans G. Schantz
-
Publication number: 20080111686Abstract: An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection a one before trying to detect when and where the intruder has penetrated and moved within the protection zone.Type: ApplicationFiled: October 29, 2006Publication date: May 15, 2008Applicant: TIME DOMAIN CORPORATIONInventors: David J. Hall, Scott M. Yano, Hans G. Schantz
-
Patent number: 7129886Abstract: An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection zone before trying to detect when and where the intruder has penetrated and moved within the protection zone.Type: GrantFiled: October 22, 2004Date of Patent: October 31, 2006Assignee: Time Domain Corp.Inventors: David J. Hall, Scott M. Yano, Hans G. Schantz
-
Patent number: 7019421Abstract: A linear motor system including compartmentalized stator sections provides an interchangeable and serviceable alternative to other linear motors. The stator sections may be individually-energized so that power is only sent to stator sections adjacent to the thrust plate or rotor of the linear motor. A sufficiently long thrust plate is used to cover any gaps in the linear stator, and additional compensation stator sections are used to provide additional motor force to the thrust plate adjacent to these gap sections. If utilized onboard a ship, additional compensation stator sections may be incorporated into the face of deck hatches. The linear motor system can also be used to counteract gravitational effects in a large hanging door system implementation.Type: GrantFiled: February 20, 2004Date of Patent: March 28, 2006Assignee: Curtiss-Wright Electro-Mechanical CorporationInventors: David J. Hall, Thomas A. Lemak, Regis J. Hillenbrand
-
Patent number: 6992762Abstract: There is provided a method and system for collecting optical data for use in time resolved optical imaging wherein light is directionally propagated through free-space optics to impinge on a plurality of illumination at the surface of a biological tissue such as that comprised in small animals. Light re-emitted from the tissue is collected and directionally propagated through free space optics towards a detector to produce time resolved optical signals useful for optical image reconstructions.Type: GrantFiled: September 22, 2003Date of Patent: January 31, 2006Assignee: ART Advanced Research Technologies Inc.Inventors: William F. Long, Yves Bérubé-Lauzière, David J. Hall, Laura McIntosh
-
Patent number: 6954663Abstract: There is provided a method and a system for determining the concentration of chromophores and reconstructing images in turbid media, such as animal tissues, using a continuous wave optical approach. In particular the approach is based on measurements of attenuation signals and the calculation of concentrations of chromophores using a predetermined scatter law. The system comprises a continuous wave photon migration model calculator coupled to an optical source and detector for estimating concentrations of chromophores and scatter parameters used in image reconstruction.Type: GrantFiled: January 7, 2003Date of Patent: October 11, 2005Assignee: ART Advanced Research Technologies Inc.Inventor: David J. Hall
-
Patent number: 6822604Abstract: An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection zone before trying to detect when and where the intruder has penetrated and moved within the protection zone.Type: GrantFiled: August 1, 2003Date of Patent: November 23, 2004Assignee: Time Domain Corp.Inventors: David J. Hall, Scott M. Yano, Hans G. Schantz
-
Publication number: 20040133085Abstract: There is provided a method and a system for determining the concentration of chromophores and reconstructing images in turbid media, such as animal tissues, using a continuous wave optical approach. In particular the approach is based on measurements of attenuation signals and the calculation of concentrations of chromophores using a predetermined scatter law. The system comprises a continuous wave photon migration model calculator coupled to an optical source and detector for estimating concentrations of chromophores and scatter parameters used in image reconstruction.Type: ApplicationFiled: January 7, 2003Publication date: July 8, 2004Applicant: ART Advanced Research Technologies Inc.Inventor: David J. Hall
-
Publication number: 20040089817Abstract: There is provided a method and system for collecting optical data for use in time resolved optical imaging wherein light is directionally propagated through free-space optics to impinge on a plurality of illumination at the surface of a biological tissue such as that comprised in small animals. Light re-emitted from the tissue is collected and directionally propagated through free space optics towards a detector to produce time resolved optical signals useful for optical image reconstructions.Type: ApplicationFiled: September 22, 2003Publication date: May 13, 2004Inventors: William F. Long, Yves Berube-Lauziere, David J. Hall, Laura McIntosh
-
Publication number: 20040021599Abstract: An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection zone before trying to detect when and where the intruder has penetrated and moved within the protection zone.Type: ApplicationFiled: August 1, 2003Publication date: February 5, 2004Inventors: David J. Hall, Scott M. Yano, Hans G. Schantz
-
Patent number: 6661342Abstract: A system, electronic device and method are provided that utilize the positioning capabilities of impulse radio technology to track one or more moving athletes. The movement of these athletes can be displayed on a television, a handheld unit or an Internet site. In addition, the present invention can utilize the communication capabilities of impulse radio technology to enable secure communications to take place between an athlete and their teammates, fans or coaches. The athletes can include, for example, track and field athletes, baseball players, football players, basketball players, soccer players or hockey players.Type: GrantFiled: June 4, 2001Date of Patent: December 9, 2003Assignee: Time Domain CorporationInventors: David J. Hall, Jonnathan H. Kim
-
Patent number: 6614384Abstract: An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection zone before trying to detect when and where the intruder has penetrated and moved within the protection zone.Type: GrantFiled: September 14, 2001Date of Patent: September 2, 2003Assignee: Time Domain CorporationInventors: David J. Hall, Scott M. Yano, Hans G. Schantz