Patents by Inventor Andrew Mackenzie

Andrew Mackenzie 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: 7659891
    Abstract: A method of associating a first electronic document with a second electronic document comprising having a first physical paper identifier (130) having pen-readable coding (12) which codes for an identifier for the first electronic document, and reading the coding of the first electronic document with a pen (20) to acquire information enabling the identity of the first electronic document to be established, and communicating that identity to a computer processor (107), and using the processor (107) to associate the identified first electronic document with the second electronic document.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: February 9, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Andrew Mackenzie
  • Patent number: 7660019
    Abstract: A method and apparatus for producing a document having human-readable content and a position identifying encoding pattern. A printer places text or other content onto a substrate, such as paper, and a filter material application system applies transparent filter material to at least a portion of that content to only modify the reflectivity of the content at a predetermined wavelength. Because the reflectivity of the position identifying encoding pattern remains unchanged, it is distinguishable from the content and can be read at the predetermined wavelength. The position identifying pattern can take a number of forms including a number of dots printed at predetermined positions on the substrate on an imaginary grid.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: February 9, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Manuel Gonzalez, Andreu Gonzalez, Virginia Palacios, Emiliano Bartolome, Lluis Abello, Steven J. Simske, Paolo Faraboschi, Roland John Burns, Andrew Mackenzie
  • Publication number: 20090215280
    Abstract: A passivated semiconductor structure and associated method are disclosed. The structure includes a silicon carbide substrate or layer; an oxidation layer on the silicon carbide substrate for lowering the interface density between the silicon carbide substrate and the thermal oxidation layer; a first sputtered non-stoichiometric silicon nitride layer on the thermal oxidation layer for reducing parasitic capacitance and minimizing device trapping; a second sputtered non-stoichiometric silicon nitride layer on the first layer for positioning subsequent passivation layers further from the substrate without encapsulating the structure; a sputtered stoichiometric silicon nitride layer on the second sputtered layer for encapsulating the structure and for enhancing the hydrogen barrier properties of the passivation layers; and a chemical vapor deposited environmental barrier layer of stoichiometric silicon nitride for step coverage and crack prevention on the encapsulant layer.
    Type: Application
    Filed: March 16, 2009
    Publication date: August 27, 2009
    Applicant: Cree, Inc.
    Inventors: Zoltan Ring, Helmut Hagleitner, Jason Patrick Henning, Andrew Mackenzie, Scott Allen, Scott Thomas Sheppard, Richard Peter Smith, Saptharishi Sriram, Allan Ward, III
  • Patent number: 7559484
    Abstract: A product 2 has a data encoding pattern 6 thereon. The pattern comprising a plurality of pattern cells 200 each of which has a pattern selected from a group of cell patterns. Each cell pattern comprises a plurality of cell elements 204 each of which can have any of a plurality of marking states, such that the marking states of the elements produce the cell pattern. Each cell pattern has at least two lines of symmetry.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: July 14, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Andrew Mackenzie
  • Patent number: 7525122
    Abstract: A passivated semiconductor structure and associated method are disclosed. The structure includes a silicon carbide substrate or layer; an oxidation layer on the silicon carbide substrate for lowering the interface density between the silicon carbide substrate and the thermal oxidation layer; a first sputtered non-stoichiometric silicon nitride layer on the thermal oxidation layer for reducing parasitic capacitance and minimizing device trapping; a second sputtered non-stoichiometric silicon nitride layer on the first layer for positioning subsequent passivation layers further from the substrate without encapsulating the structure; a sputtered stoichiometric silicon nitride layer on the second sputtered layer for encapsulating the structure and for enhancing the hydrogen barrier properties of the passivation layers; and a chemical vapor deposited environmental barrier layer of stoichiometric silicon nitride for step coverage and crack prevention on the encapsulant layer.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: April 28, 2009
    Assignee: Cree, Inc.
    Inventors: Zoltan Ring, Helmut Hagleitner, Jason Patrick Henning, Andrew Mackenzie, Scott Allen, Scott Thomas Sheppard, Richard Peter Smith, Saptharishi Sriram, Allan Ward, III
  • Patent number: 7452046
    Abstract: A method for preparing a mask for multi-pass printing, comprises determining a characteristic satellite drop spray pattern for printing in a multi-pass mode with a printhead. Positions in the mask are filled with pass numbers. The pass numbers in a given position are selected based on considerations of interactions among main drops and satellite drops.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: November 18, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alejandro Manuel De Pena, Joan Manuel Garcia, Santiago Garcia Reyero, Andreu Gonzalez, Andrew MacKenzie
  • Patent number: 7447506
    Abstract: A method is described comprising: defining a base station congestion condition; detecting that the congestion condition is met with respect to a first base station and allocating a wireless device to an alternate base station instead of the first base station in response to the congestion condition being met, as long as RSSI measured from the alternate base station is above a predetermined alternate base station threshold (“ABT”) value.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: November 4, 2008
    Assignee: Good Technology, Inc.
    Inventors: Andrew MacKenzie, Anthony Hunter, Paul J. Lima
  • Publication number: 20080209508
    Abstract: A digital pen system comprising a pen 8 adapted to mark a medium 2 and a sensor 12 arranged to determine the position on the medium 2 of a mark made by the pen 8, the system being arranged to identify a plurality of different areas 500 on the medium 2 and being further arranged to authenticate a user in dependence upon authentication data input by the user, the authentication data having a value dependent upon the order in which a group of the plurality of different areas 500 of the medium 2 are marked by the pen 8.
    Type: Application
    Filed: April 22, 2005
    Publication date: August 28, 2008
    Inventors: Manuel Angel Albarran Moyo, Carles Ruiz Fioriach, Andrew Mackenzie
  • Publication number: 20080181501
    Abstract: A method of filling in a form comprising using a digital pen to enter data into data entry areas of the form (64), and providing error feedback to the user (69) contemporaneously with filling in the form, said error feedback being indicative of the user entering a non-allowable entry in said data entry area.
    Type: Application
    Filed: July 21, 2005
    Publication date: July 31, 2008
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Paolo Faraboschi, Andrew MacKenzie
  • Publication number: 20080152224
    Abstract: A document processing system comprises a pattern generating system 212 arranged to generate a data encoding pattern 6, a printer 202 arranged to print a document 2 having the pattern thereon, and a receiver 220 arranged to receive data over a communication link. The pattern generating system 212 is arranged to generate the pattern 6 so as to encode data defining a communication parameter suitable for the transmission of data to the receiver 220 over the link.
    Type: Application
    Filed: April 27, 2005
    Publication date: June 26, 2008
    Inventor: Andrew MacKenzie
  • Publication number: 20080114777
    Abstract: A data structure which defines an electronic document comprises first and second substantially separate portions of data. The first portion of data defining the content of the document and the second portion comprising data relating to a pattern of position identification markings (106) such that when the electronic document is printed a pattern reading device, such as a pen (300), is able to determine its position relative to the position identification markings.
    Type: Application
    Filed: August 27, 2004
    Publication date: May 15, 2008
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Manuel Angel Albarran Moyo, Andrew Mackenzie
  • Publication number: 20080049258
    Abstract: A method of processing a digital document (100) which comprises content and a pattern of position identification markings comprises providing at least one electronic record of a digital document from which a second document can be produced containing substantially the same content as the digital document. The electronic record, which is preferably stored on a server (304) connected to a network, also includes information relating to the pattern printed in the digital document. The method further includes the steps of receiving a document request, the request including pattern information retrieved from the digital document (100) using a pattern reading device (300), accessing the electronic record which includes pattern information that corresponds to the retrieved pattern information and transmitting the electronic record in response to the receipt of the document request.
    Type: Application
    Filed: September 8, 2004
    Publication date: February 28, 2008
    Inventors: Manuel Angel Albarran Moyo, Andrew MacKenzie
  • Patent number: 7331530
    Abstract: A method of providing a copy of at least a portion of a document (2) comprising providing the document (2) with at least one document identifying indicia identifying at least a portion of the document, comprising the following steps, providing an indicia reader (8) to read the indicia on the document, reading the indicia with the indicia reader (8) and generating indicia data representative of the indicia, identifying the document (2), and/or portion thereof, from the indicia data generated by reading the indicia; and obtaining an electronic copy of the document and/or portions thereof identified by the indicia data.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: February 19, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Andrew Mackenzie
  • Patent number: 7327481
    Abstract: Conventional obstacles to entry and survival of small graphic-arts service providers are softened—particularly for those businesses that operate as computerized “ASP” enterprises involving wide-area networks—by encouraging small operators to coexist effectively in use of a pivotal network-based service. One key mechanism promoting this capability is a system of optionally mutual links between the pivotal service and the ASPs. The service also counteracts a tendency in the industry to favor wastefully redundant vertical integration. On the other hand, the system also implements the prerogatives of an enterprise (such as a printing-broker ASP) that has an established customer, to closely channel the attention of that customer—but subject, importantly, to being overruled by the customer. Ideally the system is carefully tuned to enable such customer action without unduly pressing the option upon the customer.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: February 5, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alberto Such, Andrew Mackenzie, Andres Gonzalez
  • Patent number: 7310535
    Abstract: A wireless apparatus is described comprising: an RF subsystem to support communication over a wireless network according to a specified network protocol; a Host subsystem to execute program code; and an interface to provide communication of control signals between the RF subsystem and the Host subsystem, the control signals allowing the RF subsystem and/or the Host subsystem to enter into a low power state independently of one another.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: December 18, 2007
    Assignee: Good Technology, Inc.
    Inventors: Andrew MacKenzie, Anthony Hunter
  • Publication number: 20070111944
    Abstract: The present invention provides a method for purifying recombinant peptides, polypeptides or proteins away from truncated or other full-length forms of these molecules. In particular the invention contemplates a method of purifying a vascular endothelial growth factor (VEGF) molecule by subjecting a biological sample containing the molecule to be purified to affinity chromatography under conditions sufficient for the full length molecules to bind and not the truncated or clipped forms. In the preferred embodiment there are two columns, the first is based on affinity for a poly his tag, the second column based on heparin binding affinity. Particularly preferred VEGF molecules are untagged VEGF-B167, hexa-His-tagged VEGF-B167, hexa-His-tagged VEGF-B186 and hexa-His-tagged VEGF-B10-108.
    Type: Application
    Filed: October 2, 2006
    Publication date: May 17, 2007
    Inventors: Sergio Scrofani, Andrew Nash, Louis Fabri, Andrew Mackenzie, Pierre Scotney
  • Publication number: 20070018199
    Abstract: A III-Nitride field-effect transistor, specifically a HEMT, comprises a channel layer, a barrier layer on the channel layer, an etch stop layer on the cap layer, a dielectric layer on the etch stop layer, a gate recess that extends to the barrier layer, and a gate contact in the gate recess. The etch stop layer may reduce damage associated with forming the recessed gate by not exposing the barrier layer to dry etching. The etch stop layer in the recess is removed and the remaining etch stop layer serves as a passivation layer.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventors: Scott Sheppard, Andrew Mackenzie, Scott Allen, Richard Smith
  • Publication number: 20070001174
    Abstract: A passivated semiconductor structure and associated method are disclosed. The structure includes a silicon carbide substrate or layer; an oxidation layer on the silicon carbide substrate for lowering the interface density between the silicon carbide substrate and the thermal oxidation layer; a first sputtered non-stoichiometric silicon nitride layer on the thermal oxidation layer for reducing parasitic capacitance and minimizing device trapping; a second sputtered non-stoichiometric silicon nitride layer on the first layer for positioning subsequent passivation layers further from the substrate without encapsulating the structure; a sputtered stoichiometric silicon nitride layer on the second sputtered layer for encapsulating the structure and for enhancing the hydrogen barrier properties of the passivation layers; and a chemical vapor deposited environmental barrier layer of stoichiometric silicon nitride for step coverage and crack prevention on the encapsulant layer.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 4, 2007
    Inventors: Zoltan Ring, Helmut Hagleitner, Jason Henning, Andrew Mackenzie, Scott Allen, Scott Sheppard, Richard Smith, Saptharishi Sriram, Allan Ward
  • Publication number: 20060291857
    Abstract: A method of testing optical network equipment involves plugging a tester device into a standard electrical socket on the optical network equipment to be tested. The tester device communicates with the optical network equipment to be tested via the standard electrical socket, appearing to the optical network equipment as though it was an optical transceiver that would be plugged into the standard electrical socket in normal use. The tester device thus has a plug with the same physical and electrical properties as the optical transceiver, and uses the same electrical signaling protocols and or formats that are used by the optical transceiver.
    Type: Application
    Filed: January 21, 2005
    Publication date: December 28, 2006
    Inventors: Andrew Mackenzie, Martin Curran-Gray
  • Patent number: 7155242
    Abstract: An apparatus and method are disclosed for improving signal transmission on a wireless device such as a personal digital assistant, wireless messaging device, or cellular phone. An initial transmission power level is selected based on received signal strength. If subsequent transmissions at the initial power level are unreliable, then the power is increased by a predetermined amount. Power level increases continue until signal transmission is reliable or the highest power level is reached. One embodiment of the system maintains its heightened power level across multiple communication dialogs.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: December 26, 2006
    Assignee: Good Technology, Inc.
    Inventors: Andrew MacKenzie, Anthony Hunter