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公开(公告)号：US5245408A
公开(公告)日：1993-09-14
申请号：US647624
申请日：1991-01-11
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
IPC: G01J9/02
CPC classification number: G01J9/02 , G01J2009/0211 , G01J2009/0223 , G01N2021/1759 , G01N2201/067
Abstract: An apparatus is described which detects the presence or absence of coherent light and provides an estimate of the coherent light's wavelength. The apparatus employs a common-path "polarization interferometer" in which the two linear polarization paths act as interferometer legs. Electro-optic modulation is used to effect periodic differential path length changes in the interferometer. The apparatus performs synchronous time-integrating detection on the light emerging from the interferometer to measure coherent contributions in the presence of obscuring incoherent light.
Abstract translation: 描述了一种检测相干光的存在或不存在并提供相干光的波长的估计的装置。 该装置采用公共路径“偏振干涉仪”，其中两个线性偏振路径用作干涉仪腿。 电光调制用于影响干涉仪中的周期差分路径长度变化。 该装置对从干涉仪出射的光进行同步时间积分检测，以在存在模糊非相干光的情况下测量相干贡献。
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2.发明授权
公开(公告)号：US4758976A
公开(公告)日：1988-07-19
申请号：US909050
申请日：1986-09-16
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
CPC classification number: G06E3/005
Abstract: An apparatus is described which performs optical processing on electrical signals to calculate the triple product integral in a manner which accommodates high bandwidth signals, which processes were formerly possible only in mechanically unstable designs.
Abstract translation: 描述了一种对电信号执行光学处理以以适应高带宽信号的方式计算三重积分的装置，该方法以前仅在机械不稳定的设计中是可能的。
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公开(公告)号：US4818949A
公开(公告)日：1989-04-04
申请号：US142114
申请日：1988-01-06
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
IPC: G01R23/163 , G01R23/16
CPC classification number: G01R23/163
Abstract: An apparatus is described which performs real time spectrum analysis of large bandwidth radio frequency signals. The apparatus allows the simultaneous monitoring of all frequencies within the band of interest, and operates in the presence of multiple frequencies.
Abstract translation: 描述了对大带宽射频信号进行实时频谱分析的装置。 该装置允许同时监视感兴趣的频带内的所有频率，并且在存在多个频率的情况下操作。
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Patent Agency Ranking
公开(公告)号：US4440472A
公开(公告)日：1984-04-03
申请号：US257061
申请日：1981-04-24
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
Abstract: A space integrating optical ambiguity processor in which two one-dimensional modulators provide two-dimensional processing capability. Signals to be processed drive orthogonal Bragg cells oriented 40.degree. to the axes of the output detector. The resulting product is transformed in one dimension and imaged in the other, thereby creating a light intensity distribution representative of the cross ambiguity between the input signals.
Abstract translation: 一种集成光学模糊处理器的空间，其中两个一维调制器提供二维处理能力。 要处理的信号驱动正交Bragg单元与输出检测器的轴线取向为40°。 所得到的产物在一个维度上变换并在另一个维度上成像，从而产生表示输入信号之间的交叉模糊度的光强度分布。
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公开(公告)号：US5012440A
公开(公告)日：1991-04-30
申请号：US318027
申请日：1989-03-01
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
CPC classification number: G06E3/003 , G01J9/0215
Abstract: An outer product shearing interferometer for an optical source of one-dimensional extent which provides simultaneous interference between every two points on the source. The interferometer comprises an input plane containing the source, an output plane for observing the outer product, an imaging system between the two planes, and a mask positioned in the transform plane of the imaging system and having slits arranged to effect the desired outer product. The desired outer product results from a simultaneous application of many lateral shears instead of only one at a time.
Abstract translation: 用于一维范围的光源的外部产品剪切干涉仪，其在源上的每两个点之间提供同时的干扰。 该干涉仪包括一个包含该源的输入平面，一个用于观察外部产品的输出平面，两个平面之间的成像系统以及位于成像系统的变换平面中的掩模，并且具有布置成实现期望的外部产品的狭缝。 所需的外部产品来自同时应用许多侧向剪切而不是一次仅一个。
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公开(公告)号：US4755745A
公开(公告)日：1988-07-05
申请号：US845673
申请日：1986-03-04
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
CPC classification number: G01R23/17
Abstract: An apparatus is described which performs acoustooptical signal processing functions with incoherent light, which procedures were formerly possible only with coherent light devices. Specific embodiments include an optical excisor, i.e., a programmable filter; a multichannel radiometer, i.e., an apparatus which estimates the power spectrum of a signal accompanied by noise; and an ambiguity processor, i.e., a time versus frequency cross correlator.
Abstract translation: 描述了以非相干光执行声光信号处理功能的装置，该方法以前仅可用于相干光装置。 具体实施例包括光学切除器，即可编程滤波器; 多通道辐射计，即估计伴随噪声的信号的功率谱的装置; 和模糊处理器，即时间与频率互相关器。
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公开(公告)号：US4729632A
公开(公告)日：1988-03-08
申请号：US934964
申请日：1986-11-25
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
CPC classification number: G06E3/005
Abstract: Common path time and frequency domain optical adaptive linear predictors are disclosed, characterized by wide bandwidth operation for use in channel equalization, source redundancy removal, speech encoding, and other areas. The predictors are noninterferometric, avoiding the instability of such processors in the prior art.
Abstract translation: 公共路径时间和频域光学自适应线性预测器被公开，其特征在于用于信道均衡，源冗余去除，语音编码等领域的宽带宽操作。 预测器是不间断的，避免了现有技术中这些处理器的不稳定性。
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公开(公告)号：US5020018A
公开(公告)日：1991-05-28
申请号：US318031
申请日：1989-03-01
Applicant: Jonathan D. Cohen
Inventor： Jonathan D. Cohen
CPC classification number: G01J9/0215 , G06E3/003
Abstract: An outer product shearing interferometer for an optical source of one-dimensional extent which provides interference between every two points on the source. The interferometer comprises an input plane containing the source, an output plane for observing the outer product, a hologram which imparts the sum of two contributions whose phases are bilinear functions of the spatial coordinates, a two-dimensional Fourier transform system which illuminates the hologram with the transform of light from the input plane, and a one-dimensional Fourier transform system which takes light from the hologram and illuminates the output plane.
Abstract translation: 用于一维范围的光源的外部产品剪切干涉仪，其在源上的每两个点之间提供干扰。 该干涉仪包括一个包含该源的输入平面，一个用于观察外部产品的输出平面，一个全息图，其赋予两个相位作为空间坐标的双线性函数的两个贡献的和;二维傅里叶变换系统， 来自输入平面的光的变换，以及从全息图照射光并照射输出平面的一维傅立叶变换系统。
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