Patents by Inventor David D'Souza
David D'Souza 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: 11041293Abstract: A robotic cleaning apparatus for cleaning a dirty object includes a cleaning head and an articulated body. The articulated body is coupled to the cleaning head and mountable to the dirty object. The body has one or more actuators that collectively move the cleaning head into contact with surfaces of the dirty object. The one or more actuators, when activated, collectively rotate the cleaning head relative to the dirty object about first and second axes, and translate the cleaning head relative to the dirty object along an extension axis. A method of robotically cleaning is also disclosed.Type: GrantFiled: February 20, 2019Date of Patent: June 22, 2021Assignee: ALTAN ROBOTECH INC.Inventors: David D'Souza, Mina Bassalious, Zhenqiang Mi, Pritam Kumar Sarkar
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Patent number: 10941553Abstract: A robotic cleaning apparatus for cleaning a dirty object includes a cleaning head and an articulated body. The articulated body is coupled to the cleaning head and mountable to the dirty object. The body has one or more actuators that collectively move the cleaning head into contact with surfaces of the dirty object. The one or more actuators, when activated, collectively rotate the cleaning head relative to the dirty object about first and second axes, and translate the cleaning head relative to the dirty object along an extension axis. A method of robotically cleaning a dirty object.Type: GrantFiled: March 13, 2018Date of Patent: March 9, 2021Assignee: ALTAN ROBOTECH INC.Inventors: David D'Souza, Mina Bassalious, Zhenqiang Mi, Pritam Kumar Sarkar
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Patent number: 10941555Abstract: A robotic cleaning apparatus for cleaning a toilet includes a cleaning head, an articulated body, and a controller. The articulated body coupled to the cleaning head and mountable to the toilet. The body having one or more actuators that collectively move the cleaning head into contact with surfaces of the toilet bowl and toilet seat when the articulated body is mounted to the toilet. The controller communicatively coupled to the one or more actuators to send control signals that, when the articulated body is mounted to the toilet, direct the one or more actuators to move the cleaning head to a plurality of positions and determine an angular orientation of the toilet seat based at least in part on the plurality of positions. The cleaning head is in contact with the toilet seat or a rim of the toilet bowl in each of the positions.Type: GrantFiled: October 22, 2018Date of Patent: March 9, 2021Assignee: ALTAN ROBOTECH INC.Inventors: David D'Souza, Mina Bassalious, Zhenqiang Mi, Pritam Kumar Sarkar
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Publication number: 20200315403Abstract: An automated cooking machine includes a lazy susan, bowls, chopper, dispenser arm, rack with powder or liquid dispensers, heater and a pot. The automated cooking machine is controlled by a microcontroller together with sensors to cook foods with flavor like a human being. The automated cooking machine is designed in such a way so that the components that may come in contact with the food ingredients can be removed for machine wash.Type: ApplicationFiled: April 3, 2020Publication date: October 8, 2020Inventors: David D'SOUZA, Mina BASSALIOUS, Zhenqiang MI, Pritam Kumar SARKAR
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Publication number: 20190177959Abstract: A robotic cleaning apparatus for cleaning a dirty object includes a cleaning head and an articulated body. The articulated body is coupled to the cleaning head and mountable to the dirty object. The body has one or more actuators that collectively move the cleaning head into contact with surfaces of the dirty object. The one or more actuators, when activated, collectively rotate the cleaning head relative to the dirty object about first and second axes, and translate the cleaning head relative to the dirty object along an extension axis. A method of robotically cleaning is also disclosed.Type: ApplicationFiled: February 20, 2019Publication date: June 13, 2019Inventors: David D'Souza, Mina Bassalious, Zhenqiang Mi, Pritam Kumar Sarkar
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Publication number: 20190093333Abstract: A robotic cleaning apparatus for cleaning a toilet includes a cleaning head, an articulated body, and a controller. The articulated body coupled to the cleaning head and mountable to the toilet. The body having one or more actuators that collectively move the cleaning head into contact with surfaces of the toilet bowl and toilet seat when the articulated body is mounted to the toilet. The controller communicatively coupled to the one or more actuators to send control signals that, when the articulated body is mounted to the toilet, direct the one or more actuators to move the cleaning head to a plurality of positions and determine an angular orientation of the toilet seat based at least in part on the plurality of positions. The cleaning head is in contact with the toilet seat or a rim of the toilet bowl in each of the positions.Type: ApplicationFiled: October 22, 2018Publication date: March 28, 2019Inventors: David D'Souza, Mina Bassalious, Zhenqiang Mi, Pritam Kumar Sarkar
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Publication number: 20180363282Abstract: A robotic cleaning apparatus for cleaning a dirty object includes a cleaning head and an articulated body. The articulated body is coupled to the cleaning head and mountable to the dirty object. The body has one or more actuators that collectively move the cleaning head into contact with surfaces of the dirty object. The one or more actuators, when activated, collectively rotate the cleaning head relative to the dirty object about first and second axes, and translate the cleaning head relative to the dirty object along an extension axis. A method of robotically cleaning is also disclosed.Type: ApplicationFiled: March 13, 2018Publication date: December 20, 2018Inventors: David D'Souza, Mina Bassalious, Zhenqiang Mi, Pritam Kumar Sarkar
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Patent number: 7822017Abstract: Systems and methods of providing secure signaling for voice communications over a public switched voice network (PSTN) are described. The call signaling is received at a first secure voice signaling gateway (SVSG) in which it is encrypted utilizing a security key. The encrypted payload is tunneled from the first SVSG to a second SVSG at a destination network element. The destination SVSG decrypts the payload and passes it on to the destination. According to the invention the communication can be either masqueraded in which the address of the first SVSG is given as the origin or non-masqueraded in which the actual original of the voice communication is retained.Type: GrantFiled: November 18, 2004Date of Patent: October 26, 2010Assignee: Alcatel LucentInventors: Scott David D'Souza, Olivier Le Moigne
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Patent number: 7743421Abstract: Communication network security risk exposure management systems and methods are disclosed. Risks to a communication network are determined by analyzing assets of the communication network and vulnerabilities affecting the assets. Assets may include physical assets such as equipment or logical assets such as software or data. Risk analysis may be adapted to assess risks to a particular feature of a communication network by analyzing assets of the communication network which are associated with that feature and one or more of vulnerabilities which affect the feature and vulnerabilities which affect the assets associated with the feature. A feature may be an asset itself or a function or service offered in the network and supported by particular assets, for example.Type: GrantFiled: May 18, 2005Date of Patent: June 22, 2010Assignee: Alcatel LucentInventors: Francois J. N. Cosquer, Bertrand Marquet, Robert W. MacIntosh, Yvon Leclerc, Scott David D'Souza
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Patent number: 7721286Abstract: An operating system combines preemptive scheduling with cooperative or non-preemptive scheduling. In particular, tasks are divided into groups of interdependent tasks. Interdependent tasks are tasks that utilize the same modules of code or resources Each group includes tasks that should not be run asynchronously relative to each other. The scheduler in the operating system provides each group with a time slot of processor time. The tasks within the group are cooperatively scheduled to exploit the time slot assigned to the group. Dependencies between modules and tasks are maintained to assure that no difficulties arise amongst preemptively scheduled groups.Type: GrantFiled: August 26, 2005Date of Patent: May 18, 2010Assignee: Microsoft CorporationInventor: David D'Souza
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Patent number: 7526803Abstract: A method and apparatus directed to detecting DoS (denial of service) attacks against SIP enabled devices. A substantial imbalance between an accounting of SIP INVITE (INV) and SIP 180 Ringing (N180) messages indicates a DoS attack. Preferably the number (H) of INVITE messages including credentials (INVc) that are sent from a user client in response to a 407 Authentication Required message from a proxy server are removed from the accounting before the balance is tested. If the equation INVo+INVc?H=N180 (where INVo is the number of INVITE messages without credentials) is not true within a small margin of error then the presence of a current DoS attack on the proxy server is indicated by the inequality.Type: GrantFiled: November 17, 2003Date of Patent: April 28, 2009Assignee: Alcatel LucentInventors: Scott David D'Souza, Dmitri Vinokurov
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Patent number: 7464398Abstract: Systems and methods of mitigating attacks, such as Denial of Service (DoS) attacks, in a communications network are presented. Source addresses of packets received at network devices are monitored in relation to known reliable addresses stored in a decision engine. If the source address, as stored in a source table, is known as being legitimate the packets are placed in a high priority queue for transmission at the highest rate. Packets with an unknown address are placed in a lower priority queue, the source address stored in a different source table, and the packet is serviced at a lower rate. Packets that become known to be legitimate are moved from the unknown table to the table from which high priority queues are serviced. In this way, an attacker that employs spoofing techniques is prevented from overtaxing network resources.Type: GrantFiled: May 19, 2003Date of Patent: December 9, 2008Assignee: Alcatel LucentInventors: Jean-Marc Robert, Scott David D'Souza, Paul Kierstead
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Patent number: 7287259Abstract: An infrastructure that allows applications to run with specified versions of dependent assemblies, wherein each assembly may exist and run side-by-side on the system with other versions of the same assembly being used by other applications. An application provides a manifest to specify any desired assembly versions on which it is dependent. Similarly, each assembly may have an assembly manifest that specifies the versions of assemblies on which it is dependent. During an initialization phase, an activation context is created for the application, based on the manifests, to map version independent names to a particular assembly version maintained on the system. While the application is in a running phase, for any globally named object that the application wants created, the activation context is accessed to locate the application's or assembly's manifest-specified version. The manifests and activation context constructed therefrom thus isolate an application from assembly version changes.Type: GrantFiled: April 24, 2001Date of Patent: October 23, 2007Assignee: Microsoft CorporationInventors: Michael J. Grier, RoseMarie FitzSimons, David D'Souza, Peter Wilson, Srivatsan Parthasarathy, Sanjay G. Shenoy, Micheal Dunn
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Patent number: 7284269Abstract: A communications security system has been described. The security system in the form of a firewall is made up of a plurality of communicatively coupled sets of modules in a matrix configuration. The modules may be implemented in hardware and software in order to rely on the advantages of each technology. Data packets are typically coupled to an ingress side of the firewall where policy rules having the highest importance are checked first. The result is a high speed system having carrier class availability.Type: GrantFiled: May 29, 2002Date of Patent: October 16, 2007Assignee: Alcatel Canada Inc.Inventors: Bertrand Marquet, Scott David D'Souza, Paul Kierstead
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Patent number: 7284272Abstract: Methods of preventing flooding-type denial-of-service attacks in a computer-based network are described. Connection establishing messages known as SYN packets are matched with connection terminating messages (FIN packets) by using a hash algorithm. The hash algorithm or message digest uses source and destination IP addresses, port numbers, and a secret key as input parameters. The SYN packets and FIN packets are mapped to buckets using the hash algorithm and statistics are maintained for each bucket. A correspondence between SYN packets and FIN packets is maintained to close a security hole.Type: GrantFiled: May 31, 2002Date of Patent: October 16, 2007Assignee: Alcatel Canada Inc.Inventors: Brett Howard, Jean-Marc Robert, Paul Kierstead, Scott David D'Souza
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Patent number: 7254713Abstract: Systems and methods of mitigating DOS attacks on a victim node in a computer based communication system are presented. According to the methods a node such as a router upstream from the victim analyzes traffic flow directed to the victim node and if a pattern indicating a possible attack is detected a notification to the effect is sent to the victim node. The victim can either ignore the notification or chose to suggest or request attack mitigation measures be implemented by the upstream router. Alternatively the upstream router can implement attack mitigation measures without waiting for input from the victim node.Type: GrantFiled: September 11, 2003Date of Patent: August 7, 2007Assignee: AlcatelInventor: Scott David D'Souza
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Patent number: 7114182Abstract: Methods of detecting TCP SYN flooding attacks at a router located between a LAN and a network such as the Internet are described. The methods rely on a counting arrangement in which SYN and Fin packets are counted on both the LAN side and the network or Internet side of the router during a time interval. Weighting factors are applied to each count, the factor for the LAN side count having the opposite polarity to the factor for the network side count. The absolute values of the sums of the weighting factors of like polarity are equal. An abnormal number of unsuccessful connection attempts are determined based on a parameter calculated using the weighting factors in conjunction with the respective counts.Type: GrantFiled: May 31, 2002Date of Patent: September 26, 2006Assignee: Alcatel Canada Inc.Inventors: Jean-Marc Robert, Brett Howard, Paul Kierstead, Scott David D'Souza
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Patent number: D838069Type: GrantFiled: August 17, 2017Date of Patent: January 8, 2019Assignee: ALTAN ROBOTECH INC.Inventors: David D'Souza, Mina Bassalious, Hao Li
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Patent number: D861266Type: GrantFiled: July 19, 2018Date of Patent: September 24, 2019Assignee: Altan Robotech Inc.Inventors: David D'Souza, Mina Bassalious, Hao Li
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Patent number: D937399Type: GrantFiled: October 16, 2019Date of Patent: November 30, 2021Assignee: ALTAN ROBOTECH INC.Inventors: Pritam Kumar Sarkar, David D'Souza