Patents by Inventor David A. Chavez

David A. Chavez 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: 8689301
    Abstract: A proxy server causes an authentication authority to authenticate a client in response to a first Session Initiation Protocol (SIP) request of the client on a connection. It does not cause the client to be authenticated in response subsequent requests on the connection as long as the underlying connection is not broken, the subsequent requests are on behalf of the same client, the client has not been removed from the system, the client's password has not changed, a “safety net” timer has not expired, or any other policy that the server chooses to enforce. This eliminates the overhead of constant re-authentication in response to each SIP request.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 1, 2014
    Assignee: Avaya Inc.
    Inventors: Frank J. Boyle, Gordon Brunson, David Chavez, Stephen Durney, Gregory Weber
  • Patent number: 8453176
    Abstract: An exemplary aspect is directed toward one or more solutions that are capable of providing feedback information about OCAP/ACAP/IMS solutions generally related to audience acceptance and satisfaction, and extensions thereto. For example, one exemplary aspect is directed toward information, such as consumer feedback about their viewing choices, being gathered, evaluated and distributed. Even more specifically, an exemplary aspect is directed toward the use of information, such as personalized or customized information and personal preferences contained in an STB combined with an OCAP/ACAP/IMS intelligent personal agent and application(s) to provide advanced interactive and interoperable services to both obtain and distribute feedback about OCAP/ACAP/IMS services.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: May 28, 2013
    Assignee: Avaya Inc.
    Inventors: Theresa Campagna, David Chavez, David Mohler
  • Publication number: 20120162204
    Abstract: Modifying perspective of stereoscopic images provided by one or more displays based on changes in user view, user control, and/or display status. A display system may include a housing, a display comprised in the housing, and one or more tracking sensors comprised in the housing. The one or more tracking sensors may be configured to sense user view and/or user control position and orientation information. The one or more tracking sensors may be associated with a position and orientation of the display. The user view and/or user control position and orientation information may be used in generating the rendered left and right eye images for display.
    Type: Application
    Filed: November 18, 2011
    Publication date: June 28, 2012
    Inventors: Michael A. Vesely, David A. Chavez, Douglas C. Twilleager
  • Publication number: 20120162214
    Abstract: Tracking objects presented within a stereo three-dimensional (3D) scene. The user control device may include one or more visually indicated points for at least one tracking sensor to track. The user control device may also include other position determining devices, for example, an accelerometer and/or gyroscope. Precise 3D coordinates of the stylus may be determined based on location information from the tracking sensor(s) and additional information from the other position determining devices.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Inventors: David A. Chavez, Milind Paranjpe, Jerome C. Tu
  • Publication number: 20120047525
    Abstract: An exemplary aspect is directed toward one or more solutions that are capable of providing feedback information about OCAP/ACAP/IMS solutions generally related to audience acceptance and satisfaction, and extensions thereto. For example, one exemplary aspect is directed toward information, such as consumer feedback about their viewing choices, being gathered, evaluated and distributed. Even more specifically, an exemplary aspect is directed toward the use of information, such as personalized or customized information and personal preferences contained in an STB combined with an OCAP/ACAP/IMS intelligent personal agent and application(s) to provide advanced interactive and interoperable services to both obtain and distribute feedback about OCAP/ACAP/IMS services.
    Type: Application
    Filed: September 16, 2010
    Publication date: February 23, 2012
    Applicant: AVAYA INC.
    Inventors: Theresa Campagna, David Chavez, David Mohler
  • Publication number: 20110225013
    Abstract: An automated, or semi-automated system that manages conference attendance to the parties who are really necessary based on, for example, one or more of participation and feedback during previous conference call(s) (and/or on a current call) and the ability to load a thick client for facilitating and coordinating non-verbal communications between conference participants. It could be advantageous for a conference participant to have the ability to indicate non-verbally their interest the conference, rather than disrupt the meeting, thus adding to productivity. It could also add to the utility if a conference coordinator or host could easily keep a record of why attendees drop from the conference, and intelligently apply this record to future scheduling. Another exemplary advantage is to set-up a pre-canned message and coordinate delivery of such messages about participation, interest, and/or status between two or more members (including the host) of the conference call.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 15, 2011
    Applicant: AVAYA INC
    Inventors: David Chavez, Jeffrey G. Gartner, Gerard O'Sullivan
  • Patent number: 7998705
    Abstract: The present invention generally relates to novel processes for protein purification in high salt solutions such as cell culture broth by increasing the dynamic binding capacity of a resin with the addition of polyethylene glycol.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: August 16, 2011
    Assignee: FUJIFILM Diosynth Biotechnologies U.S.A., Inc
    Inventors: Min Wan, Mark David Chavez, Jeffrey Lee Schrimsher
  • Publication number: 20100220358
    Abstract: Communication systems and methods for enhancing communications between users featuring a central service which formats messages into a printer-friendly format. The format of the delivered message is based on preference settings established by the recipient or an authorized agent of the recipient. The messages are delivered to a device, such as a printer. Messages can be sent to the service in any format and can include text, photographs, URLs, and/or a variety of file types. The messages are then parsed by the service and formatted for delivery to the device.
    Type: Application
    Filed: April 2, 2010
    Publication date: September 2, 2010
    Inventors: Joseph M. Beninato, Martin MAZNER, Heidi Kay CARSON, David A. CHAVEZ
  • Publication number: 20100082977
    Abstract: A proxy server causes an authentication authority to authenticate a client in response to a first Session Initiation Protocol (SIP) request of the client on a connection. It does not cause the client to be authenticated in response subsequent requests on the connection as long as the underlying connection is not broken, the subsequent requests are on behalf of the same client, the client has not been removed from the system, the client's password has not changed, a “safety net” timer has not expired, or any other policy that the server chooses to enforce. This eliminates the overhead of constant re-authentication in response to each SIP request.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: Avaya Inc.
    Inventors: Frank J. Boyle, Gordon Brunson, David Chavez, Stephen Durney, Gregory Weber
  • Patent number: 7493124
    Abstract: A method and apparatus is provided to update information within a first network (103) via a second network (102) when communication no longer exists with the first network. During operation the first network is accessed via a PSTN (108) message that is never answered by the first network. Based on the called number and caller-identification information, the first network updates its system information.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: February 17, 2009
    Assignee: Motorola, Inc.
    Inventors: Alex P. Hirsbrunner, Anatoly S. Belkin, Sandra R. Abramson, David Chavez, Steven M. Milton, Leigh Chinitz
  • Publication number: 20060242083
    Abstract: A method and apparatus for license distribution are disclosed. An endpoint requests information from a server related to information required for the server to grant a license. The server provides the required information to the endpoint. The endpoint obtains the required information, and forwards the information to the server. The server, upon receiving the information, determines if a license may be granted to the endpoint, and transmits a license authorization to the endpoint, which includes the number of licenses which are granted.
    Type: Application
    Filed: June 26, 2006
    Publication date: October 26, 2006
    Applicant: Avaya Technology Corp.
    Inventor: David Chavez
  • Publication number: 20060146802
    Abstract: In one configuration, an enterprise network is provided that includes geographically dislocated first and second network regions 202 and 206, the first and second network regions being in communication with one another through first and second networks 252 and 248 and respectively comprising first and second gateways 220 and 224 and first and second groupings of links connected to the second network 248. A common electronic address is associated with the second grouping of links. In response to a request from a first subscriber to initiate a communication session with a second subscriber in the other network region, a media server 200 determines that the first network 252 is currently incapable of supporting the bearer channel for the session. In response, the first gateway 220 transmits the common electronic address to the second gateway 224.
    Type: Application
    Filed: November 18, 2005
    Publication date: July 6, 2006
    Applicant: Avaya Technology Corp.
    Inventors: Christopher Baldwin, David Bernardini, David Chavez, Luigi Gentile-Polese, Albert Pessot, Rod Roehrich, Karen Dorato
  • Publication number: 20060146859
    Abstract: In one configuration, an enterprise network is provided that includes geographically dislocated first and second network regions 202 and 206, the first and second network regions being in communication with one another through first and second networks 252 and 248 and respectively comprising first and second gateways 220 and 224 and first and second groupings of links connected to the second network 248. A common electronic address is associated with the second grouping of links. In response to a request from a first subscriber to initiate a communication session with a second subscriber in the other network region, a media server 200 determines that the first network 252 is currently incapable of supporting the bearer channel for the session. In response, the first gateway 220 transmits the common electronic address to the second gateway 224.
    Type: Application
    Filed: April 14, 2005
    Publication date: July 6, 2006
    Applicant: Avaya Technology Corp.
    Inventors: Christopher Baldwin, David Bernardini, David Chavez, Luigi Gentile-Polese, Albert Pessot, Rod Roehrich
  • Publication number: 20060098650
    Abstract: Communication systems and methods for enhancing communications between users featuring a central service which formats messages into a printer-friendly format. The format of the delivered message is based on preference settings established by the recipient or an authorized agent of the recipient. The messages are delivered to a device, such as a printer. Messages can be sent to the service in any format and can include text, photographs, URLs, and/or a variety of file types. The messages are then parsed by the service and formatted for delivery to the device.
    Type: Application
    Filed: September 28, 2005
    Publication date: May 11, 2006
    Inventors: Joseph Beninato, Martin Mazner, Heidi Carson, David Chavez
  • Publication number: 20060078454
    Abstract: Nanoporous metal foams are prepared by ignition of high nitrogen transition metal complexes. The ammonium salts of iron(III) tris[bi(tetrazolato)-amine], cobalt(III) tris(bi(tetrazolato)amine), and high nitrogen compounds of copper and silver were prepared as loose powders, pressed into pellets and wafers, and ignited under an inert atmosphere to form nanoporous metal foam monoliths having very high surface area and very low density.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 13, 2006
    Inventors: Bryce Tappan, My Hang Huynh, Michael Hiskey, Steven Son, David Oschwald, David Chavez
  • Publication number: 20060067359
    Abstract: A method is disclosed that enables a data-processing system, such as a private branch exchange, to detect and disconnect looping communication channels, without some of the costs, disadvantages, and limitations of techniques in the prior art. The illustrative embodiment of the present invention provides detection of looping communication channels at the point where the loop begins. By detecting at the beginning point of the loop, the illustrative embodiment has the advantage of de-allocating call resources sooner than some techniques in the prior art. This enables the call resources to be reused faster for subsequent incoming and outgoing calls. Faster reuse is advantageous because it can lower the call blocking characteristic, which is related to the probability of a new call not being set up due to lack of communication channel resources.
    Type: Application
    Filed: September 29, 2004
    Publication date: March 30, 2006
    Applicant: Avaya Technology Corp.
    Inventors: Sandra Abramson, Frank Boyle, David Chavez, C. McMillen, Stephen Milton
  • Publication number: 20060026219
    Abstract: An archival storage cluster of preferably symmetric nodes includes a metadata management system that organizes and provides access to given metadata, preferably in the form of metadata objects. Each metadata object may have a unique name, and metadata objects are organized into regions. Preferably, a region is selected by hashing one or more object attributes (e.g., the object's name) and extracting a given number of bits of the resulting hash value. The number of bits may be controlled by a configuration parameter. Each region is stored redundantly. A region comprises a set of region copies. In particular, there is one authoritative copy of the region, and zero or more backup copies. The number of backup copies may be controlled by a configuration parameter. Region copies are distributed across the nodes of the cluster so as to balance the number of authoritative region copies per node, as well as the number of total region copies per node.
    Type: Application
    Filed: July 27, 2005
    Publication date: February 2, 2006
    Inventors: Jack Orenstein, David Chavez
  • Publication number: 20050261006
    Abstract: A method and apparatus is provided to update information within a first network (103) via a second network (102) when communication no longer exists with the first network. During operation the first network is accessed via a PSTN (108) message that is never answered by the first network. Based on the called number and caller-identification information, the first network updates its system information.
    Type: Application
    Filed: March 10, 2005
    Publication date: November 24, 2005
    Inventors: Alex Hirsbrunner, Anatoly Belkin, Sandra Abramson, David Chavez, Steven Milton
  • Publication number: 20050068889
    Abstract: The present invention is directed to the maintenance of call signaling information in connection with realtime communications established using a packet data network. According to the present invention, call state information related to a realtime communication is provided by a call controller to an interconnected client. The client stores the call state information. In the event of a failure of a call signaling channel between the call controller and the client or in the event of a failure of the call controller, the client may establish contact with an alternate call controller, and may provide the call state information that has been stored on the client to the alternate call controller. The alternate call controller may then restore call features associated with the realtime communication.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventors: David Chavez, Kurt Haserodt, Manish Marwah, Jeffrey Meis, Vivekananda Velamala
  • Publication number: 20050013421
    Abstract: The present invention is directed to a message interfacing agent 224 enables a circuit-switched communication device 106, such as a telephone, to receive and respond to electronic messages and the feature server 228 enables external endpoints to access switch/server functionality using packet-switched communications.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 20, 2005
    Inventors: David Chavez, Kevin Cripps, Kurt Haserodt