Patents by Inventor Marshall W. Bern

Marshall W. Bern 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: 10260858
    Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: April 16, 2019
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Doron Kletter, Bowen Cheng, Michael I. Recht
  • Publication number: 20180245908
    Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 30, 2018
    Inventors: Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Doron Kletter, Bowen Cheng, Michael I. Recht
  • Patent number: 9952033
    Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: April 24, 2018
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Doron Kletter, Bowen Cheng, Michael I. Recht
  • Patent number: 9817977
    Abstract: One embodiment of the present invention provides a system for stable selection of collaborating partners for exchanging security data. During operation, the system receives vectors of collaboration values from a plurality of entities. A collaboration value is a measure of an expected benefit of collaborating with a respective entity. The system sorts each of the vectors by the collaboration values of the respective vector. The system then determines matching entities given a number of partners wanted by each organization in N. The system may add matching entities to lists of collaborating partners given the number of partners wanted by each organization in N. Subsequently, the system sends the lists of collaborating partners to facilitate exchanging security data with partners in the list of collaborating partners.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 14, 2017
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Julien F. Freudiger, Emiliano De Cristofaro, Alejandro E. Brito, Marshall W. Bern, Ersin Uzun
  • Publication number: 20170269099
    Abstract: Embodiments of a computer system, a method, and a computer-program product (e.g., software) for analyzing tandem-mass-spectrometry data are described. Using this analysis technique, unanticipated chemical modifications to peptides associated with proteins can be identified. In particular, a modification called a wild-card modification is used to identify the most likely chemical modifications in the peptides. A wild-card modification allows the addition of any mass, typically any integer atomic mass within a range, to any one amino acid residue within a candidate peptide.
    Type: Application
    Filed: May 31, 2017
    Publication date: September 21, 2017
    Applicant: Protein Metrics Inc.
    Inventor: Marshall W. Bern
  • Patent number: 9671408
    Abstract: Embodiments of a computer system, a method, and a computer-program product (e.g., software) for analyzing tandem-mass-spectrometry data are described. Using this analysis technique, unanticipated chemical modifications to peptides associated with proteins can be identified. In particular, a modification called a wild-card modification is used to identify the most likely chemical modifications in the peptides. A wild-card modification allows the addition of any mass, typically any integer atomic mass within a range, to any one amino acid residue within a candidate peptide.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 6, 2017
    Assignee: PROTEIN METRICS INC.
    Inventor: Marshall W. Bern
  • Patent number: 9528925
    Abstract: Approaches for determining object position in a flow path are disclosed. A system includes a spatial filter having a length disposed along a longitudinal axis of the flow path and a width along a lateral axis of the flow path. The spatial filter has mask features configured to modulate light. Light emanating from objects moving along the flow path is detected. The detected light has a component along a detection axis that makes a non-zero angle with respect to the longitudinal and lateral axes. An electrical output signal that includes information about the trajectory depth of the object is generated in response to the detected light.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: December 27, 2016
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Doron Kletter, Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Bowen Cheng, Michael I. Recht
  • Patent number: 9477839
    Abstract: One embodiment of the present invention provides a system to facilitate collaboration for mitigating network threats. During operation, the system receives encrypted data sets from a plurality of entities. The data sets including data describing threats to network security. The system performs privacy-preserving operations on the encrypted data sets, such as private set intersection. The system then computes one or more metrics based on results of the private set intersection computations. The system may generate a similarity matrix based on the one or more metrics, and returns one or more similarity values from the similarity matrix to one or more entities of the plurality of entities.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: October 25, 2016
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Julien F. Freudiger, Emiliano De Cristofaro, Alejandro E. Brito, Marshall W. Bern, Ersin Uzun
  • Patent number: 9341562
    Abstract: A filter arrangement can transmit and/or reflect light emanating from a moving object so that the emanating light has time variation, and the time variation can include information about the object, such as its type. For example, emanating light from segments of a path can be transmitted/reflected through positions of a filter assembly, and the transmission functions of the positions can be sufficiently different that time variation occurs in the emanating light between segments. Or emanating light from a segment can be transmitted/reflected through a filter component in which simpler transmission functions are superimposed, so that time variation occurs in the emanating light in accordance with superposition of two simpler non-uniform transmission functions. Many filter arrangements could be used, e.g. the filter component could include the filter assembly, which can have one of the simpler non-uniform transmission functions.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: May 17, 2016
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Joerg Martini, Peter Kiesel, Malte Huck, Marshall W. Bern, Noble M. Johnson, Michael Bassler, Markus Beck
  • Patent number: 9275237
    Abstract: One embodiment of the present invention provides a system for privacy-preserving sharing of data for secure collaboration. During operation, the system obtains a first set of data describing network events associated with one or more network addresses. Next, the system negotiates with a potential partner to determine a metric for deciding whether to share data. The potential partner is associated with a second set of data describing network events. The system then computes a value for the metric in a privacy-preserving way, based on the first set of data and the second set of data. Subsequently, the system determines whether the metric value exceeds a predetermined threshold, and, responsive to determining that the metric value exceeds the predetermined threshold, the system shares the first set of data with the potential partner, while controlling how the data should be shared to optimize benefits and risks of collaboration.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 1, 2016
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Emiliano De Cristofaro, Julien F. Freudiger, Ersin Uzun, Alejandro E. Brito, Marshall W. Bern
  • Patent number: 9207066
    Abstract: A device includes a spatial filter arranged in a Cartesian coordinate system having orthogonal x, y, and z axes. The spatial filter has mask features that are more light transmissive and mask features that are less light transmissive. The mask features are arranged along the x-axis in the flow direction of a flow path. A detector is positioned to detect light emanating from at least one object in the flow path, the object having a width along the y-axis, a thickness along the z-axis, and a length along the x-axis. Light emanating from the object is time modulated according to the mask features as the object moves along the flow path. The detector is configured to generate a time-varying electrical signal in response to the detected light that includes information about the width or thickness of the object.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: December 8, 2015
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Doron Kletter, Bowen Cheng, Michael I. Recht
  • Publication number: 20150286824
    Abstract: One embodiment of the present invention provides a system for stable selection of collaborating partners for exchanging security data. During operation, the system receives vectors of collaboration values from a plurality of entities. A collaboration value is a measure of an expected benefit of collaborating with a respective entity. The system sorts each of the vectors by the collaboration values of the respective vector. The system then determines matching entities given a number of partners wanted by each organization in N. The system may add matching entities to lists of collaborating partners given the number of partners wanted by each organization in N. Subsequently, the system sends the lists of collaborating partners to facilitate exchanging security data with partners in the list of collaborating partners.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Julien F. Freudiger, Emiliano De Cristofaro, Alejandro E. Brito, Marshall W. Bern, Ersin Uzun
  • Publication number: 20150286825
    Abstract: One embodiment of the present invention provides a system to facilitate collaboration for mitigating network threats. During operation, the system receives encrypted data sets from a plurality of entities. The data sets including data describing threats to network security. The system performs privacy-preserving operations on the encrypted data sets, such as private set intersection. The system then computes one or more metrics based on results of the private set intersection computations. The system may generate a similarity matrix based on the one or more metrics, and returns one or more similarity values from the similarity matrix to one or more entities of the plurality of entities.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Julien F. Freudiger, Emiliano De Cristofaro, Alejandro E. Brito, Marshall W. Bern, Ersin Uzun
  • Publication number: 20150276387
    Abstract: Approaches for determining object position in a flow path are disclosed. A system includes a spatial filter having a length disposed along a longitudinal axis of the flow path and a width along a lateral axis of the flow path. The spatial filter has mask features configured to modulate light. Light emanating from objects moving along the flow path is detected. The detected light has a component along a detection axis that makes a non-zero angle with respect to the longitudinal and lateral axes. An electrical output signal that includes information about the trajectory depth of the object is generated in response to the detected light.
    Type: Application
    Filed: February 14, 2014
    Publication date: October 1, 2015
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Doron Kletter, Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Bowen Cheng, Michael I. Recht
  • Publication number: 20150276486
    Abstract: A system is configured to determine a color distribution of an object moving along a flow direction relative to a spatial filter. The light emanating from the object is time modulated according to the mask features of the spatial filter. First and second detectors are arranged to sense the modulated light. The first detector senses light having a first wavelength spectrum and generates a first electrical output signal in response to the sensed light. The second detector light senses light having a second wavelength spectrum and generates a second electrical output signal in response to the sensed light. Signals from the first and second detectors include information about color distribution of the object.
    Type: Application
    Filed: February 14, 2014
    Publication date: October 1, 2015
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Doron Kletter, Bowen Cheng, Michael I. Recht
  • Publication number: 20150233704
    Abstract: A device includes a spatial filter arranged in a Cartesian coordinate system having orthogonal x, y, and z axes. The spatial filter has mask features that are more light transmissive and mask features that are less light transmissive. The mask features are arranged along the x-axis in the flow direction of a flow path. A detector is positioned to detect light emanating from at least one object in the flow path, the object having a width along the y-axis, a thickness along the z-axis, and a length along the x-axis. Light emanating from the object is time modulated according to the mask features as the object moves along the flow path. The detector is configured to generate a time-varying electrical signal in response to the detected light that includes information about the width or thickness of the object.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 20, 2015
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Doron Kletter, Bowen Cheng, Michael I. Recht
  • Publication number: 20150233703
    Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 20, 2015
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Joerg Martini, Marshall W. Bern, Noble M. Johnson, Peter Kiesel, Doron Kletter, Bowen Cheng, Michael I. Recht
  • Publication number: 20150161398
    Abstract: One embodiment of the present invention provides a system for privacy-preserving sharing of data for secure collaboration. During operation, the system obtains a first set of data describing network events associated with one or more network addresses. Next, the system negotiates with a potential partner to determine a metric for deciding whether to share data. The potential partner is associated with a second set of data describing network events. The system then computes a value for the metric in a privacy-preserving way, based on the first set of data and the second set of data. Subsequently, the system determines whether the metric value exceeds a predetermined threshold, and, responsive to determining that the metric value exceeds the predetermined threshold, the system shares the first set of data with the potential partner, while controlling how the data should be shared to optimize benefits and risks of collaboration.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 11, 2015
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Emiliano De Cristofaro, Julien F. Freudiger, Ersin Uzun, Alejandro E. Brito, Marshall W. Bern
  • Patent number: 8963092
    Abstract: Traffic monitors based on non-imaging radiation detectors are described. A traffic monitor includes a non-imaging radiation detector that senses spatially patterned radiation emanating from objects moving in a traffic pattern. The detector generates a time varying output signal based on the sensed radiation. Signal processing circuitry is used to analyze the time varying output signal using time domain analysis to provide the traffic information.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: February 24, 2015
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Peter Kiesel, Marshall W. Bern, Joerg Martini, Malte Huck
  • Publication number: 20140192359
    Abstract: A filter arrangement can transmit and/or reflect light emanating from a moving object so that the emanating light has time variation, and the time variation can include information about the object, such as its type. For example, emanating light from segments of a path can be transmitted/reflected through positions of a filter assembly, and the transmission functions of the positions can be sufficiently different that time variation occurs in the emanating light between segments. Or emanating light from a segment can be transmitted/reflected through a filter component in which simpler transmission functions are superimposed, so that time variation occurs in the emanating light in accordance with superposition of two simpler non-uniform transmission functions. Many filter arrangements could be used, e.g. the filter component could include the filter assembly, which can have one of the simpler non-uniform transmission functions.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 10, 2014
    Inventors: Joerg Martini, Peter Kiesel, Malte Huck, Marshall W. Bern, Noble M. Johnson, Michael Bassler, Markus Beck