Patents by Inventor Mark Davidson

Mark Davidson 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: 20070200784
    Abstract: An antenna system includes a dielectric structure formed on a substrate; an antenna, partially within the dielectric structure, and supported by the dielectric structure; a reflective surface formed on the substrate. A shield blocks radiation from a portion of the antenna and from at least some of the dielectric structure. The shield is supported by the dielectric structure.
    Type: Application
    Filed: May 4, 2006
    Publication date: August 30, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070190794
    Abstract: A process to produce ultra-small structures of between ones of nanometers to hundreds of micrometers in size, in which the structures are compact, nonporous and exhibit smooth vertical surfaces. Such processing is accomplished using a non-conductive or semi-conductive substrate on which a layer of a conductive material, such as a conductive polymer, is applied, and on which a second layer of a masking material, such as a pattern resist material, is applied. Following patterning of the second resist layer, and either the full or partial etching of the conductive polymer, or alternatively omitting the step of etching the conductive layer, electroplating techniques will be used to produce ultra-small structures on the substrate or alternatively directly on the conductive layer, after which either all of remaining portions of the conductive polymer layer and the resist layer will be removed, or only the resist layer will be removed, or alternatively neither will be removed.
    Type: Application
    Filed: February 10, 2006
    Publication date: August 16, 2007
    Inventors: Jonathan Gorrell, Mark Davidson
  • Patent number: 7253426
    Abstract: A device couples energy from an electromagnetic wave to charged particles in a beam. The device includes a micro-resonant structure and a cathode for providing electrons along a path. The micro-resonant structure, on receiving the electromagnetic wave, generates a varying field in a space including a portion of the path. Electrons are deflected or angularly modulated to a second path.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: August 7, 2007
    Assignee: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines, Lev Gasparov, Paul Hart
  • Publication number: 20070170370
    Abstract: A device couples energy from an electromagnetic wave to charged particles in a beam. The device includes a micro-resonant structure and a cathode for providing electrons along a path. The micro-resonant structure, on receiving the electromagnetic wave, generates a varying field in a space including a portion of the path. Electrons are deflected or angularly modulated to a second path.
    Type: Application
    Filed: March 12, 2007
    Publication date: July 26, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Lev Gasparov, Michael Maines, Paul Hart
  • Publication number: 20070152938
    Abstract: A display of wavelength elements can be produced from resonant structures that emit light (and other electromagnetic radiation having a dominant frequency higher than that of microwave) when exposed to a beam of charged particles, such as electrons from an electron beam. An exemplary display with three wavelengths per pixel utilizes three resonant structures per pixel. The spacings and lengths of the fingers of the resonant structures control the light emitted from the wavelength elements. Alternatively, multiple resonant structures per wavelength can be used as well.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 5, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070154846
    Abstract: When using micro-resonant structures, it is possible to use the same source of charged particles to cause multiple resonant structures to emit electromagnetic radiation. This reduces the number of sources that are required for multi-element configurations, such as displays with plural rows (or columns) of pixels. In one such embodiment, at least one deflector is placed in between first and second resonant structures. After the beam passes by at least a portion of the first resonant structure, it is directed to a path such that it can be directed towards the second resonant structure. The amount of deflection needed to direct the beam toward the second resonant structure is based on the amount of deflection, if any, that the beam underwent as it passed by the first resonant structure. This process can be repeated in series as necessary to produce a set of resonant structures in series.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 5, 2007
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070152176
    Abstract: We describe an ultra-small resonant structure that produces electromagnetic radiation (e.g., visible light) at selected frequencies. The resonant structure can be produced from any conducting material (e.g., metal such as silver or gold). In one example, a number of rows of posts are etched or plated on a substrate, with each row having a particular geometry associated with the posts and cavities between the posts. A charged particle beam is selectively directed close by one of the rows of posts, causing them to resonate and produce radiation (e.g., in the visible spectrum at a predominant frequency). Directing the charged particle beam at a different row yields radiation at a different predominant frequency.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 5, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070152781
    Abstract: When using micro-resonant structures, a resonant structure may be turned on or off (e.g., when a display element is turned on or off in response to a changing image or when a communications switch is turned on or off to send data different data bits). Rather than turning the charged particle beam on and off, the beam may be moved to a position that does not excite the resonant structure, thereby turning off the resonant structure without having to turn off the charged particle beam. In one such embodiment, at least one deflector is placed between a source of charged particles and the resonant structure(s) to be excited. When the resonant structure is to be turned on (i.e., excited), the at least one deflector allows the beam to pass by undeflected. When the resonant structure is to be turned off, the at least one deflector deflects the beam away from the resonant structure by an amount sufficient to prevent the resonant structure from becoming excited.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 5, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070085039
    Abstract: A device couples energy from an electromagnetic wave to charged particles in a beam. The device includes a micro-resonant structure and a cathode for providing electrons along a path. The micro-resonant structure, on receiving the electromagnetic wave, generates a varying field in a space including a portion of the path. Electrons are deflected or angularly modulated to a second path.
    Type: Application
    Filed: October 5, 2005
    Publication date: April 19, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines, Lev Gasparov, Paul Hart
  • Publication number: 20070075263
    Abstract: A method and apparatus for modulating a beam of charged particles is described in which a beam of charged particles is produced by a particle source and a varying electric field is induced within an ultra-small resonant structure. The beam of charged particles is modulated by the interaction of the varying electric field with the beam of charged particles.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines, Paul Hart
  • Publication number: 20070075264
    Abstract: We describe an ultra-small structure that produces visible light of varying frequency, from a single metallic layer. In one example, a row of metallic posts are etched or plated on a substrate according to a particular geometry. When a charged particle beam passed close by the row of posts, the posts and cavities between them cooperate to resonate and produce radiation in the visible spectrum (or even higher). A plurality of such rows of different geometries can be etched or plated from a single metal layer such that the charged particle beam will yield different visible light frequencies (i.e., different colors) using different ones of the rows.
    Type: Application
    Filed: October 5, 2005
    Publication date: April 5, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070075907
    Abstract: We describe an ultra-small structure that produces visible light of varying frequency, from a single metallic layer. In one example, a row of metallic posts are etched or plated on a substrate according to a particular geometry. When a charged particle beam passed close by the row of posts, the posts and cavities between them cooperate to resonate and produce radiation in the visible spectrum (or even higher). A plurality of such rows of different geometries can be etched or plated from a single metal layer such that the charged particle beam will yield different visible light frequencies (i.e., different colors) using different ones of the rows.
    Type: Application
    Filed: February 14, 2006
    Publication date: April 5, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070075265
    Abstract: A coupled nano-resonating structure includes a plurality of a nano-resonating substructures constructed and adapted to couple energy from a beam of charged particles into said nano-resonating structure and to transmit the coupled energy outside said nano-resonating structure. The nano-resonant substructures may have various shapes and may include parallel rows of structures. The rows may be symmetric or asymmetric, tilted, and/or staggered.
    Type: Application
    Filed: December 14, 2005
    Publication date: April 5, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Michael Maines
  • Publication number: 20070034518
    Abstract: We describe a process to produce ultra-small structures of between ones of nanometers to hundreds of micrometers in size, in which the structures are compact, nonporous and exhibit smooth vertical surfaces. Such processing is accomplished with pulsed electroplating techniques using ultra-short pulses in a controlled and predictable manner.
    Type: Application
    Filed: August 15, 2005
    Publication date: February 15, 2007
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Andres Trucco, Jean Tokarz
  • Patent number: 7115881
    Abstract: This invention deals with novel method and apparatus for positioning and motion control by rapid-response motorless linear motion, angular deflection, and continuous rotational motion utilizing the force due to electrons, ions, and/or neutrals. Thus forces and torques are produced without the use of internal moving parts. Control is achieved without recourse to magnetic fields, by means of high electric fields which may be attained at relatively low voltages. At low voltages, the instant invention exceeds the capability of conventional systems. It can perform dynamic motion control over a wide range of dimensions and signal bandwidth with independent amplitude and frequency modulation. Since there are no internal moving parts, the instant invention is the most adapted for fabrication at the micro and nanotechnology realms. Furthermore it provides less costly and greater ease of manufacture from the nano-to the macro-realm.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: October 3, 2006
    Inventors: Mario Rabinowitz, Mark Davidson
  • Publication number: 20060216940
    Abstract: We describe an ultra-small structure and a method of producing the same. The structures produce visible light of varying frequency, from a single metallic layer. In one example, a row of metallic posts are etched or plated on a substrate according to a particular geometry. When a charged particle beam passed close by the row of posts, the posts and cavities between them cooperate to resonate and produce radiation in the visible spectrum (or even higher). A plurality of such rows of different geometries are formed by either etching or plating from a single metal layer such that the charged particle beam will yield different visible light frequencies (i.e., different colors) using different ones of the rows.
    Type: Application
    Filed: May 15, 2006
    Publication date: September 28, 2006
    Applicant: Virgin Islands Microsystems, Inc.
    Inventors: Jonathan Gorrell, Mark Davidson, Jean Tokarz, Michael Maines, Andres Trucco, Paul Hart
  • Publication number: 20060039546
    Abstract: Methods and systems for load sharing and preserving sequencing of signaling connection control part (SCCP) messages are disclosed. According to one method, SCCP messages are received at an inbound interface module and assigned a sequence number. Each SCCP message is then transmitted using a load sharing algorithm to any one of a plurality of SCCP modules for SCCP processing. After the SCCP processing, the SCCP messages are returned to the inbound interface module and ordered based on the assigned sequence numbers the messages are then transmitted in order to an outbound interface module.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 23, 2006
    Inventors: Mark Davidson, Devesh Agarwal, Raghavendra Rao
  • Publication number: 20060035173
    Abstract: We describe a new method for etching patterns in silver, copper, or gold, or other plate metal thin films. A pattern of a hard mask is placed onto the surface of the thin film, followed by a step of reactive ion etching using a plasma formed using a gas feed of some combination of some amounts of methane (CH4) and hydrogen (H2), and some or no amount of Argon (Ar). The areas of silver, copper or gold not covered by the hard mask are etched while the hard mask protects those areas that will form the raised portions of thin film in the final structure.
    Type: Application
    Filed: August 13, 2004
    Publication date: February 16, 2006
    Inventors: Mark Davidson, Jean Tokarz, Jonathan Gorrell
  • Publication number: 20060007557
    Abstract: A Mireau interference microscope is corrected for spherical and other aberrations induced by the beamsplitter and mirror support windows by incorporating a cover glass correcting-objective lens. The support windows for the beamsplitter and mirror have a combined thickness within the adjustment range of the cover glass correcting-objective lens.
    Type: Application
    Filed: July 8, 2004
    Publication date: January 12, 2006
    Inventor: Mark Davidson
  • Publication number: 20050284537
    Abstract: A rotary filling machine is disclosed for filling containers, the machine including a rotating platform rotatable relative to a vertical rotating axis through a filling zone, and a conveyor configured to convey empty containers to be filled to the rotating platform for filling and to convey filled containers from the rotating platform.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 29, 2005
    Inventors: Thomas Hartness, William Hartness, Mark Davidson