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公开(公告)号：US20180210071A1
公开(公告)日：2018-07-26
申请号：US15875904
申请日：2018-01-19
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Boulat A. Bash , Saikat Guha
CPC classification number: G01S7/4814 , G01S7/4868 , G01S7/4917 , G01S17/36
Abstract: A system for covert sensing. A broadband light source is split into two portions, a first portion of which illuminates a target, and a second portion of which is frequency shifted, e.g., by an acousto-optic frequency shifter. Light reflected from the target is combined with the frequency shifted light, detected, and demodulated with an in-phase and quadrature demodulator. The outputs of the demodulator are filtered and the arc tangent of the ratio is calculated.
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公开(公告)号：US09236883B2
公开(公告)日：2016-01-12
申请号：US13872857
申请日：2013-04-29
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Saikat Guha
IPC: H03M13/00 , H03M13/05 , H04B10/112 , H04B10/70
CPC classification number: H04L27/223 , H03M13/05 , H04B10/1121 , H04B10/70
Abstract: A computer device may receive a codebook, and generate a unitary transformation operator for the codebook. Furthermore, the computer device may decompose the unitary transformation operator into representations of two or more devices, and cause a generating of a layout of a photonic circuit that includes the two or more devices.
Abstract translation: 计算机设备可以接收码本，并生成用于码本的单一变换算子。 此外，计算机设备可以将单一变换算子分解成两个或更多个器件的表示，并且使得生成包括两个或更多个器件的光子电路的布局。
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公开(公告)号：US10193722B2
公开(公告)日：2019-01-29
申请号：US14985099
申请日：2015-12-30
Applicant: Raytheon BBN Technologies Corp.
Inventor： Saikat Guha
IPC: H03M13/00 , H04L27/22 , H04B10/112 , H04B10/70 , H03M13/05
Abstract: An optical receiver may include a unitary transformation operator to receive an n-symbol optical codeword associated with a codebook, and to perform a unitary transformation on the received optical codeword to generate a transformed optical codeword, where the unitary transformation is based on the codebook. The optical receiver may further include n optical detectors, where a particular one of the n optical detectors is to detect a particular optical symbol of the transformed optical codeword, and to determine whether the particular optical symbol corresponds to a first optical symbol or a second optical symbol. The optical receiver may also include a decoder to construct a codeword based on the determinations, and to decode the constructed codeword into a message using the codebook. The optical receiver may attain superadditive capacity, and, with an optimal code, may attain the Holevo limit to reliable communication data rates.
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公开(公告)号：US10069573B2
公开(公告)日：2018-09-04
申请号：US15424563
申请日：2017-02-03
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Hari Kiran Krovi , Saikat Guha
IPC: H04J14/00 , H04B10/70 , H04B10/2557 , H04Q11/00 , G06N99/00
Abstract: A method implemented by an optical circuit, including beam splitter, phase shifters and cross-phase modulators, for solving Ising-model using quantum annealing discretizes a continuous time-dependent Hamiltonian function over a time period T, into a plurality of smaller portions; implements each of said smaller portions with a non-linear optical medium, and iterates over said smaller portions to output a solution of the Ising Hamiltonian problem, using the optical components.
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Patent Agency Ranking
5.发明授权Device and method for optimally distinguishing among an arbitrary set of coherent states of light 有权用于最佳区分光的任意一组相干状态的装置和方法公开(公告)号：US09569730B2
公开(公告)日：2017-02-14
申请号：US13646228
申请日：2012-10-05
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Marcus P. da Silva , Saikat Guha , Zachary Dutton
CPC classification number: G06N99/002 , B82Y10/00 , G06E3/00
Abstract: A method and device for optimal processing of a plurality of sets of coherent states of lights. The method includes: receiving a light having a coherent state; splitting the coherent state into a plurality of identical states (slices), each a coherent state with lower intensity than that of the received coherent state; transferring the information of each of the identical coherent states into a qubit; compressing the quantum information of the qubit into a quantum memory; and quantum processing the quantum information from the quantum memory.
Abstract translation: 一种用于最佳处理多组相干状态的光的方法和装置。 该方法包括：接收具有相干状态的光; 将相干状态分解为多个相同状态（片），每个状态具有比所接收的相干状态的强度低的相干状态; 将每个相同相干状态的信息转换成量子位; 将量子位的量子信息压缩成量子存储器; 并从量子存储器量子处理量子信息。
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公开(公告)号：US10274587B2
公开(公告)日：2019-04-30
申请号：US15875904
申请日：2018-01-19
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Boulat A. Bash , Saikat Guha
Abstract: A system for covert sensing. A broadband light source is split into two portions, a first portion of which illuminates a target, and a second portion of which is frequency shifted, e.g., by an acousto-optic frequency shifter. Light reflected from the target is combined with the frequency shifted light, detected, and demodulated with an in-phase and quadrature demodulator. The outputs of the demodulator are filtered and the arc tangent of the ratio is calculated.
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公开(公告)号：US20160119170A1
公开(公告)日：2016-04-28
申请号：US14985099
申请日：2015-12-30
Applicant: Raytheon BBN Technologies Corp.
Inventor： Saikat Guha
CPC classification number: H04L27/223 , H03M13/05 , H04B10/1121 , H04B10/70
Abstract: An optical receiver may include a unitary transformation operator to receive an n-symbol optical codeword associated with a codebook, and to perform a unitary transformation on the received optical codeword to generate a transformed optical codeword, where the unitary transformation is based on the codebook. The optical receiver may further include n optical detectors, where a particular one of the n optical detectors is to detect a particular optical symbol of the transformed optical codeword, and to determine whether the particular optical symbol corresponds to a first optical symbol or a second optical symbol. The optical receiver may also include a decoder to construct a codeword based on the determinations, and to decode the constructed codeword into a message using the codebook. The optical receiver may attain superadditive capacity, and, with an optimal code, may attain the Holevo limit to reliable communication data rates.
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8.发明申请DEVICE AND METHOD FOR OPTIMALLY DISTINGUISHING AMONG AN ARBITRARY SET OF COHERENT STATES OF LIGHT 有权用于在光束的相关状态的集合中进行最佳判断的装置和方法公开(公告)号：US20140133001A1
公开(公告)日：2014-05-15
申请号：US13646228
申请日：2012-10-05
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Marcus P. da Silva , Saikat Guha , Zachary Dutton
IPC: G06N99/00
CPC classification number: G06N99/002 , B82Y10/00 , G06E3/00
Abstract: A method and device for optimal processing of a plurality of sets of coherent states of lights. The method includes: receiving a light having a coherent state; splitting the coherent state into a plurality of identical states (slices), each a coherent state with lower intensity than that of the received coherent state; transferring the information of each of the identical coherent states into a qubit; compressing the quantum information of the qubit into a quantum memory; and quantum processing the quantum information from the quantum memory.
Abstract translation: 一种用于最佳处理多组相干状态的光的方法和装置。 该方法包括：接收具有相干状态的光; 将相干状态分解为多个相同状态（片），每个状态具有比所接收的相干状态的强度低的相干状态; 将每个相同相干状态的信息转换成量子位; 将量子位的量子信息压缩成量子存储器; 并从量子存储器量子处理量子信息。
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公开(公告)号：US20170264373A1
公开(公告)日：2017-09-14
申请号：US15424563
申请日：2017-02-03
Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
Inventor： Hari Kiran Krovi , Saikat Guha
IPC: H04B10/70 , H04Q11/00 , H04B10/2557
CPC classification number: H04B10/70 , G06N99/002 , H04B10/2557 , H04Q11/0005 , H04Q2011/0035
Abstract: A method implemented by an optical circuit, including beam splitter, phase shifters and cross-phase modulators, for solving Ising-model using quantum annealing discretizes a continuous time-dependent Hamiltonian function over a time period T, into a plurality of smaller portions; implements each of said smaller portions with a non-linear optical medium, and iterates over said smaller portions to output a solution of the Ising Hamiltonian problem, using the optical components.
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