Patents by Inventor Mihailo Zilovic

Mihailo Zilovic 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: 11164577
    Abstract: The present technology pertains to a voice assistant configured for use in a meeting room environment where the voice assistant can learn speech parameters for a meeting taking place in the meeting room environment. The voice assistant can use the speech parameters to deliver proactive notifications in a manner that is less intrusive to the conversation in the meeting.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: November 2, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Vikas Vashisht, Michael A. Ramalho, Mihailo Zilovic, Dario De Santis
  • Publication number: 20200234696
    Abstract: The present technology pertains to a voice assistant configured for use in a meeting room environment where the voice assistant can learn speech parameters for a meeting taking place in the meeting room environment. The voice assistant can use the speech parameters to deliver proactive notifications in a manner that is less intrusive to the conversation in the meeting.
    Type: Application
    Filed: January 23, 2019
    Publication date: July 23, 2020
    Inventors: Vikas Vashisht, Michael A. Ramalho, Mihailo Zilovic, Dario De Santis
  • Publication number: 20200195297
    Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein the data eigenvectors are mapped to unique multi-bit words. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data are grouped into multi-bit words and data eigenvectors among the data eigenvectors are selected based on the multi-bit words. A spread data sequence including the selected data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 18, 2020
    Inventors: Michael A. Ramalho, Mihailo Zilovic, David A. Benham
  • Patent number: 10530417
    Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein the data eigenvectors are mapped to unique multi-bit words. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data are grouped into multi-bit words and data eigenvectors among the data eigenvectors are selected based on the multi-bit words. A spread data sequence including the selected data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 7, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, David A. Benham
  • Patent number: 10158684
    Abstract: An access server communicates with a video conference device and a user device. The access server and the user device may access known mappings, including a default mapping. Each mapping is configured to map between tokens and symbols according to a distinct mapping relationship between the multi-bit tokens and the symbols. The access server instructs the video conference device to map an initial token to an initial symbol based on the default mapping and to transmit the initial symbol. The access server receives from the user device the initial token and a challenge mapping selected by the user device. The access server determines a challenge token that the challenge mapping maps to a challenge symbol, and instructs the video conference device to transmit the challenge symbol. The access server grants the user device access to an information carrying channel only if the challenge token is received from the user device.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: December 18, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: John Arsenault, Michael A. Ramalho, Mihailo Zilovic, Jonathan Rosenberg
  • Patent number: 10141973
    Abstract: A first endpoint generates an acoustic spread spectrum signal including a pilot sequence and a data sequence representing a token synchronized to the pilot sequence, transmits the acoustic spread spectrum signal, and records a transmit time at which the acoustic spread spectrum signal is transmitted. A receive time at which a second endpoint received the acoustic spread spectrum signal transmitted by the first endpoint is received from the second endpoint along with an indication of a second token as recovered from the received acoustic spread spectrum signal by the second endpoint. A separation distance between the first endpoint and the second endpoint is computed based on a time difference between the transmit time and the receive time. The first endpoint is paired with the second endpoint when the token matches the second token and the computed distance is less than a threshold distance.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: November 27, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Mihailo Zilovic
  • Publication number: 20180227010
    Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein the data eigenvectors are mapped to unique multi-bit words. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data are grouped into multi-bit words and data eigenvectors among the data eigenvectors are selected based on the multi-bit words. A spread data sequence including the selected data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
    Type: Application
    Filed: March 20, 2018
    Publication date: August 9, 2018
    Inventors: Michael A. Ramalho, Mihailo Zilovic, David A. Benham
  • Publication number: 20180175903
    Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein each of the data eigenvectors is mapped to a unique multi-bit word. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data is grouped into multi-bit words and ones of the data eigenvectors mapped to the multi-bit words are selected. A spread data sequence including the selected ones of the data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 21, 2018
    Inventors: Michael A. Ramalho, Mihailo Zilovic, David A. Benham
  • Patent number: 10003377
    Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein each of the data eigenvectors is mapped to a unique multi-bit word. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data is grouped into multi-bit words and ones of the data eigenvectors mapped to the multi-bit words are selected. A spread data sequence including the selected ones of the data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 19, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, David A. Benham
  • Publication number: 20180091565
    Abstract: An access server communicates with a video conference device and a user device. The access server and the user device may access known mappings, including a default mapping. Each mapping is configured to map between tokens and symbols according to a distinct mapping relationship between the multi-bit tokens and the symbols. The access server instructs the video conference device to map an initial token to an initial symbol based on the default mapping and to transmit the initial symbol. The access server receives from the user device the initial token and a challenge mapping selected by the user device. The access server determines a challenge token that the challenge mapping maps to a challenge symbol, and instructs the video conference device to transmit the challenge symbol. The access server grants the user device access to an information carrying channel only if the challenge token is received from the user device.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 29, 2018
    Inventors: John Arsenault, Michael A. Ramalho, Mihailo Zilovic, Jonathan Rosenberg
  • Patent number: 9667686
    Abstract: A method that includes: (1) transmitting, at a first transmit time point, a first probe packet over a network connection to a conferencing server immediately before transmitting a data packet, the first probe packet arriving at the conferencing server at a first receive time point; (2) transmitting, at a second transmit time point, a second probe packet over the network connection to the conferencing server immediately after transmitting the data packet, the second probe packet arriving at the conferencing server at a second receive time point, the first and second probe packets being smaller than the data packet; (3) receiving information encoding a first difference between the first and second transmit time points and a second difference between the first and second receive time points; and (4) based on the first and second differences, modifying a transmission parameter associated with data packets to be transmitted thereafter to the conferencing server.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 30, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, Laurent Kim-Huy Pham, Gary A. Skrabutenas
  • Patent number: 9351024
    Abstract: A system includes a processor operable to identify each of a plurality of first video packets from a communication session with a first identifier designating that bandwidth is reserved on the network for the packet, and identify each of a plurality of second video packets from the communication session with a second identifier designating that bandwidth is not reserved on the network for the packet. The system further includes an interface operable to initiate transmission of the plurality of first video packets and the plurality of second video packets in the communication session.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: May 24, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Toerless T. Eckert, Mohamed K. Zanaty, Mihailo Zilovic, James E. Coffman
  • Patent number: 9088530
    Abstract: In one embodiment, a system and method include determining bandwidth of a link that connects a local modem to a remote router. A first percentage of the bandwidth is assigned to a first class of data and a second percentage of bandwidth is assigned to a second class of data. The remaining percentage of the bandwidth is assigned for nominal excess capacity. The flow of first class of data and second class of data are controlled to below respective percentages of the bandwidth.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: July 21, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, James E. Coffman, Daniel G. Wing, Mohamed Zanaty, Bill VerSteeg
  • Publication number: 20150172355
    Abstract: A method that includes; (1) transmitting, at a first transmit time point, a first probe packet over a network connection to a conferencing server immediately before transmitting a data packet, the first probe packet arriving at the conferencing server at a first receive time point; (2) transmitting, at a second transmit time point, a second probe packet over the network connection to the conferencing server immediately after transmitting the data packet, the second probe packet arriving at the conferencing server at a second receive time point, the first and second probe packets being smaller than the data packet; (3) receiving information encoding a first difference between the first and second transmit time points and a second difference between the first and second receive time points; and (4) based on the first and second differences, modifying a transmission parameter associated with data packets to be transmitted thereafter to the conferencing server.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 18, 2015
    Applicant: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, Laurent Kim-Huy Pham, Gary A. Skrabutenas
  • Patent number: 8948058
    Abstract: A method that includes: (1) transmitting, at a first transmit time point, a first probe packet over a network connection to a conferencing server immediately before transmitting a data packet, the first probe packet arriving at the conferencing server at a first receive time point; (2) transmitting, at a second transmit time point, a second probe packet over the network connection to the conferencing server immediately after transmitting the data packet, the second probe packet arriving at the conferencing server at a second receive time point, the first and second probe packets being smaller than the data packet; (3) receiving information encoding a first difference between the first and second transmit time points and a second difference between the first and second receive time points; and (4) based on the first and second differences, modifying a transmission parameter associated with data packets to be transmitted thereafter to the conferencing server.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: February 3, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, Laurent Kim-Huy Pham, Gary A. Skrabutenas
  • Publication number: 20150029852
    Abstract: In one embodiment, a system and method include determining bandwidth of a link that connects a local modem to a remote router. A first percentage of the bandwidth is assigned to a first class of data and a second percentage of bandwidth is assigned to a second class of data. The remaining percentage of the bandwidth is assigned for nominal excess capacity. The flow of first class of data and second class of data are controlled to below respective percentages of the bandwidth.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 29, 2015
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, James E. Coffman, Daniel G. Wing, Mohamed Zanaty, Bill VerSteeg
  • Publication number: 20140376399
    Abstract: A system includes a processor operable to identify each of a plurality of first video packets from a communication session with a first identifier designating that bandwidth is reserved on the network for the packet, and identify each of a plurality of second video packets from the communication session with a second identifier designating that bandwidth is not reserved on the network for the packet. The system further includes an interface operable to initiate transmission of the plurality of first video packets and the plurality of second video packets in the communication session.
    Type: Application
    Filed: September 9, 2014
    Publication date: December 25, 2014
    Inventors: Michael A. Ramalho, Toerless T. Eckert, Mohamed K. Zanaty, Mihailo Zilovic, James E. Coffman
  • Patent number: 8838828
    Abstract: A system includes a processor operable to identify each of a plurality of first video packets from a communication session with a first identifier designating that band width is reserved on the network for the packet, and identify each of a plurality of second video packets from the communication session with a second identifier designating that bandwidth is not reserved on the network for the packet. The system further includes an interface operable to initiate transmission of the plurality of first video packets and the plurality of second video packets in the communication session.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: September 16, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Michael A. Ramalho, Toerless T. Eckert, Mohamed K. Zanaty, Mihailo Zilovic, James E. Coffman
  • Publication number: 20140022956
    Abstract: A method that includes: (1) transmitting, at a first transmit time point, a first probe packet over a network connection to a conferencing server immediately before transmitting a data packet, the first probe packet arriving at the conferencing server at a first receive time point; (2) transmitting, at a second transmit time point, a second probe packet over the network connection to the conferencing server immediately after transmitting the data packet, the second probe packet arriving at the conferencing server at a second receive time point, the first and second probe packets being smaller than the data packet; (3) receiving information encoding a first difference between the first and second transmit time points and a second difference between the first and second receive time points; and (4) based on the first and second differences, modifying a transmission parameter associated with data packets to be transmitted thereafter to the conferencing server.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 23, 2014
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Michael A. Ramalho, Mihailo Zilovic, Laurent Kim-Huy Pham, Gary A. Skrabutenas
  • Patent number: RE49288
    Abstract: A first endpoint generates an acoustic spread spectrum signal including a pilot sequence and a data sequence representing a token synchronized to the pilot sequence, transmits the acoustic spread spectrum signal, and records a transmit time at which the acoustic spread spectrum signal is transmitted. A receive time at which a second endpoint received the acoustic spread spectrum signal transmitted by the first endpoint is received from the second endpoint along with an indication of a second token as recovered from the received acoustic spread spectrum signal by the second endpoint. A separation distance between the first endpoint and the second endpoint is computed based on a time difference between the transmit time and the receive time. The first endpoint is paired with the second endpoint when the token matches the second token and the computed distance is less than a threshold distance.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: November 8, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Michael A. Ramalho, Mihailo Zilovic