Patents by Inventor Robert Cahn
Robert Cahn 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: 9413419Abstract: An apparatus and method for generating a composite signal includes electronics configured to modulate a carrier utilizing a finite set of composite signal phases to generate a composite signal, the finite set of composite signal phases being determined through an optimization process that minimizes a constant envelope for the phase modulated carrier, subject to constraints on desired signal power levels of the signals to be combined and either zero or one or more relative phase relationships between the signals. The apparatus and method can be extended to generating an optimized composite signal of different frequencies.Type: GrantFiled: October 8, 2015Date of Patent: August 9, 2016Assignee: The Aerospace CorporationInventors: Charles Robert Cahn, Philip A. Dafesh
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Patent number: 9299251Abstract: Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to identify decision point locations at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.), as well as to track the actual use by drivers of particular paths between particular decision points in order to determine preferred compound links between those decision point locations. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information.Type: GrantFiled: April 9, 2014Date of Patent: March 29, 2016Assignee: Inrix, Inc.Inventors: Christopher L. Scofield, Robert Cahn, Weimin Mark Wang, Alec Barker, Robert Frederick Leidle
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Patent number: 9257042Abstract: Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to determine actual delays for vehicles encountering various particular road features in the network of roads, such as for identified decision points at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.) and/or for other traffic flow impediments. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information.Type: GrantFiled: March 11, 2011Date of Patent: February 9, 2016Assignee: Inrix, Inc.Inventors: Christopher L. Scofield, Robert Cahn, Weimin Mark Wang, Alec Barker, Robert Frederick Leidle
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Publication number: 20160036487Abstract: An apparatus and method for generating a composite signal includes electronics configured to modulate a carrier utilizing a finite set of composite signal phases to generate a composite signal, the finite set of composite signal phases being determined through an optimization process that minimizes a constant envelope for the phase modulated carrier, subject to constraints on desired signal power levels of the signals to be combined and either zero or one or more relative phase relationships between the signals. The apparatus and method can be extended to generating an optimized composite signal of different frequencies.Type: ApplicationFiled: October 8, 2015Publication date: February 4, 2016Applicant: The Aerospace CorporationInventors: Charles Robert Cahn, Philip A. Dafesh
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Patent number: 9197282Abstract: An apparatus and method for generating a composite signal includes electronics configured to modulate a carrier utilizing a finite set of composite signal phases to generate a composite signal, the finite set of composite signal phases being determined through an optimization process that minimizes a constant envelope for the phase modulated carrier, subject to constraints on desired signal power levels of the signals to be combined and either zero or one or more relative phase relationships between the signals. The apparatus and method can be extended to generating an optimized composite signal of different frequencies.Type: GrantFiled: July 7, 2014Date of Patent: November 24, 2015Assignee: The Aerospace CorporationInventors: Charles Robert Cahn, Philip A. Dafesh
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Publication number: 20150063427Abstract: An apparatus and method for generating a composite signal includes electronics configured to modulate a carrier utilizing a finite set of composite signal phases to generate a composite signal, the finite set of composite signal phases being determined through an optimization process that minimizes a constant envelope for the phase modulated carrier, subject to constraints on desired signal power levels of the signals to be combined and either zero or one or more relative phase relationships between the signals. The apparatus and method can be extended to generating an optimized composite signal of different frequencies.Type: ApplicationFiled: July 7, 2014Publication date: March 5, 2015Applicant: THE AEROSPACE CORPORATIONInventors: Charles Robert Cahn, Philip A. Dafesh
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Publication number: 20140309914Abstract: Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to identify decision point locations at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.), as well as to track the actual use by drivers of particular paths between particular decision points in order to determine preferred compound links between those decision point locations. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information.Type: ApplicationFiled: April 9, 2014Publication date: October 16, 2014Applicant: Inrix, Inc.Inventors: Christopher L. Scofield, Robert Cahn, Weimin Mark Wang, Alec Barker, Robert Frederick Leidle
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Patent number: 8774315Abstract: An apparatus and method for generating a composite signal includes electronics configured to modulate a carrier utilizing a finite set of composite signal phases to generate a composite signal, the finite set of composite signal phases being determined through an optimization process that minimizes a constant envelope for the phase modulated carrier, subject to constraints on desired signal power levels of the signals to be combined and either zero or one or more relative phase relationships between the signals. The apparatus and method can be extended to generating an optimized composite signal of different frequencies.Type: GrantFiled: August 25, 2009Date of Patent: July 8, 2014Assignee: The Aerospace CorporationInventors: Charles Robert Cahn, Philip A. Dafesh
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Patent number: 8738285Abstract: Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to identify decision point locations at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.), as well as to track the actual use by drivers of particular paths between particular decision points in order to determine preferred compound links between those decision point locations. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information.Type: GrantFiled: March 11, 2011Date of Patent: May 27, 2014Assignee: Inrix, Inc.Inventors: Christopher L. Scofield, Robert Cahn, Weimin Mark Wang, Alec Barker, Robert Frederick Leidle
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Patent number: 8290075Abstract: Methods and Systems for tracking symbol timing of an OFDM signal are disclosed. In one embodiment, a wireless receiver includes signal tracking and timing logic to facilitate the timing of a demodulation operation such that the demodulation operation occurs on the proper symbol boundary, particularly when the OFDM signal has multipath components and the second component has greater power than the first.Type: GrantFiled: June 4, 2010Date of Patent: October 16, 2012Assignee: CSR Technology Inc.Inventors: Charles Robert Cahn, Sharath Ananth
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Patent number: 8098583Abstract: In a multi-QoS network, a scheduling mechanism, such as Weighted Fair Queueing, is configured to meet the multiple QoS guarantees. For each link with n classes and n fixed weights, the traffic is assigned to the various classes to meet end-to-end delay constraints.Type: GrantFiled: February 2, 2009Date of Patent: January 17, 2012Assignee: AT & T Intellectual Property II, LPInventor: Robert Cahn
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Publication number: 20110224898Abstract: Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to identify decision point locations at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.), as well as to track the actual use by drivers of particular paths between particular decision points in order to determine preferred compound links between those decision point locations. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Inventors: Christopher L. Scofield, Robert Cahn, Weimin Mark Wang, Alec Barker, Robert Frederick Leidle
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Publication number: 20110224893Abstract: Techniques are described for generating and using information regarding road traffic in various ways, including by obtaining and analyzing road traffic information regarding actual behavior of drivers of vehicles on a network of roads. Obtained actual driver behavior information may in some situations be analyzed to determine actual delays for vehicles encountering various particular road features in the network of roads, such as for identified decision points at which drivers face choices corresponding to possible alternative routes through the network of roads (e.g., intersections, highway exits and/or entrances, etc.) and/or for other traffic flow impediments. The identified and determined information from the analysis may then be used in various manners, including in some situations to assist in determining particular recommended or preferred routes of vehicles through the network of roads based at least in part on actual driver behavior information.Type: ApplicationFiled: March 11, 2011Publication date: September 15, 2011Inventors: Christopher L. Scofield, Robert Cahn, Weimin Mark Wang, Alec Barker, Robert Frederick Leidle
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Patent number: 7925281Abstract: Methods of evaluating access to Virtual Private Networks (VPNs) from alternate access connections and for improving access to VPNs from alternate access connections such as ISPs. The methods include downloading a set of tests through a network backbone to simulate access to the VPN from the alternate access connection and comparing the results of the test to benchmarks for the test of access to the VPN from leased lines and modems. By obtaining comparisons of the tests and the benchmarks, it is possible to determine the throughput of data through the VPN and tell the customer how its access connections are affecting, among other things, the raw data throughput. This allows the customer and/or the network service provider to adjust the access connections to improve communications with the VPN.Type: GrantFiled: April 30, 2009Date of Patent: April 12, 2011Assignee: AT&T Intellectual Property II, LPInventor: Robert Cahn
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Patent number: 7912732Abstract: A computer method is disclosed for calculating an approximate cost of multi-protocol label switching (MPLS)-based virtual private network (VPN) services. The method computes a lower bound and an upper bound for the bandwidth used in an MPLS-based VPN. These are then combined to produce an estimate for the cost of the bandwidth.Type: GrantFiled: July 7, 2006Date of Patent: March 22, 2011Assignee: AT&T Intellectual Property II, L.P.Inventor: Robert Cahn
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Publication number: 20110051783Abstract: An apparatus and method for generating a composite signal includes electronics configured to modulate a carrier utilizing a finite set of composite signal phases to generate a composite signal, the finite set of composite signal phases being determined through an optimization process that minimizes a constant envelope for the phase modulated carrier, subject to constraints on desired signal power levels of the signals to be combined and either zero or one or more relative phase relationships between the signals. The apparatus and method can be extended to generating an optimized composite signal of different frequencies.Type: ApplicationFiled: August 25, 2009Publication date: March 3, 2011Inventors: Charles Robert Cahn, Philip A. Dafesh
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Patent number: 7873569Abstract: A web-based loan auction system is available to individual borrowers and individual lenders and is particularly well-suited for individual borrowers that cannot meet the standards of conventional lending institutions. The system is also attractive to potential lenders that desire to achieve a higher return on their investment than currently offered by banks. The potential borrower submits a web-based loan application to the auction system. Once the loan application information is verified (a function performed by the agency offering the auction service), the application is translated into an “anonymous” version, where the personal information of the borrower himself is replaced by “placeholders” known and controlled by the auction service. The “anonymized” version of the loan application is then posted on the auction's web site for bidding by potential lenders.Type: GrantFiled: January 12, 2006Date of Patent: January 18, 2011Inventor: Robert Cahn
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Patent number: 7853508Abstract: Methods and systems for managing and analyzing multi-dimensional data are provided. Example embodiments provide a Meta-Object Data Management System “MODMS,” which enables users to arrange and to rearrange hierarchical relationships of the data on an ad-hoc basis and allows the data to be analyzed using any set of attributes (dimensions) while the system is running. The MODMS represents heterogeneous data in a normalized (standardized) fashion using an object type management system that allows the arbitrary coercion of one type of object into another different type of object and automatically resolves attribute dependencies. In one embodiment, the MODMS comprises an object type management subsystem; a meta-object instantiation subsystem; one or more data repositories; and an input/output interface. These components cooperate to allow the creation, management, and analysis of relationships between many different types of single and multi-dimensional data.Type: GrantFiled: July 3, 2003Date of Patent: December 14, 2010Assignee: Serena Software, Inc.Inventors: John Scumniotales, Eric Burke, Robert Cahn, Thomas Fannon, Mitchel Burns, Michael Lester, Jeff Hill
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Patent number: 7813454Abstract: Methods and Systems for tracking symbol timing of an OFDM signal are disclosed. In one embodiment, a wireless receiver includes signal tracking and timing logic to facilitate the timing of a demodulation operation such that the demodulation operation occurs on the proper symbol boundary, particularly when the OFDM signal has multipath components and the second component has greater power than the first.Type: GrantFiled: September 6, 2006Date of Patent: October 12, 2010Assignee: Sirf Technology, Inc.Inventors: Charles Robert Cahn, Sharath Ananth
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Publication number: 20100246397Abstract: In a multi-QoS network, a scheduling mechanism, such as Weighted Fair Queueing, is configured to meet the multiple QoS guarantees. For each link with n classes and n fixed weights, the traffic is assigned to the various classes to meet end-to-end delay constraints.Type: ApplicationFiled: February 2, 2009Publication date: September 30, 2010Inventor: Robert Cahn