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公开(公告)号：US20190007091A1
公开(公告)日：2019-01-03
申请号：US16018159
申请日：2018-06-26
Applicant: RAYTHEON COMPANY
Inventor： Gary M. Graceffo , Andrew Kowalevicz , Benjamin P. Dolgin
Abstract: An optical receiver and communication method receives an optical signal by an optical resonator to provide an intensity modulated signal indicative of a modulation of the optical signal. The intensity modulated signal is provided to a channel receiver of a plurality of channel receivers, and the channel receiver recovers from the intensity modulated signal a multipath version of a transmitted signal embedded in the modulation of the optical signal. The channel receiver's output is combined with an output of at least one other of the plurality of channel receivers to provide a combined output signal.
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公开(公告)号：US10091039B2
公开(公告)日：2018-10-02
申请号：US15458233
申请日：2017-03-14
Applicant: Raytheon Company
Inventor： Benjamin Dolgin , Gary M. Graceffo , Andrew Kowalevicz
Abstract: A phase detection system includes first and second phase mixing circuits in signal communication with a signal phase adjuster module. The first mixing circuit generates a first digital modulated frequency signal based on an input signal and a first reference phase signal. The second mixing circuit generates a second digital modulated frequency signal based on the input signal and a second reference phase signal, which phase shifted with respect to the first reference phase signal. The phase detection system further includes a phase identification (ID) module in signal communication with the first mixing circuit and the second mixing circuit. The phase ID module generates a phase signal based on the first digital modulated frequency signal and the second digital modulated frequency signal. The phase signal indicates a phase of the input signal.
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公开(公告)号：US20180167145A1
公开(公告)日：2018-06-14
申请号：US15816670
申请日：2017-11-17
Applicant: RAYTHEON COMPANY
Inventor： Benjamin P. Dolgin , Andrew Kowalevicz , Gary M. Graceffo
CPC classification number: H04B10/671 , G02B5/284 , G02B5/285 , G02F7/00 , H04B10/67
Abstract: Aspects are generally directed to optical signal receivers and methods. In one example, a receiver includes an optical resonator assembly configured to receive an optical signal at each of a plurality of optical resonators, each optical resonator configured to resonate optical signal energy at a corresponding frequency of the received optical signal, each optical resonator being tuned to a different corresponding frequency of the received optical signal, and each optical resonator being configured to output corresponding output optical signal energy. The receiver includes a detector assembly to detect the corresponding output optical signal energy from each optical resonator, and a signal processing circuit configured detect a frequency variation of the received optical signal based on the corresponding output optical signal energy from at least two of the plurality of optical resonators, and configured to generate a digital signal based on the frequency variation.
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54.发明申请公开(公告)号：US20180145764A1
公开(公告)日：2018-05-24
申请号：US15816047
申请日：2017-11-17
Applicant: RAYTHEON COMPANY
Inventor： Benjamin P. Dolgin , Andrew Kowalevicz , Gary M. Graceffo
CPC classification number: H04B10/615 , G02B6/29338 , G02B17/004 , H04B10/5161 , H04B10/676
Abstract: Optical signal receivers and methods are provided that include multiple optical resonators, each of which receives a portion of an arriving optical signal. Various of the optical resonators are tuned or detuned from a carrier wavelength, and produce an intensity modulated output signal in response to modulation transitions in the arriving optical signal. A detector determines modulation transitions in the arriving optical signal by analyzing the intensity modulation output signals from the optical resonators.
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公开(公告)号：US20180091232A1
公开(公告)日：2018-03-29
申请号：US15717670
申请日：2017-09-27
Applicant: RAYTHEON COMPANY
Inventor： Benjamin P. Dolgin , Gary M. Graceffo , Andrew Kowalevicz
CPC classification number: H04B10/6931 , H01S3/08 , H01S3/08031 , H01S3/094 , H01S3/094076 , H01S3/10053 , H01S3/10092 , H01S3/1305 , H01S3/1307 , H01S3/131 , H04B10/672 , H04B10/676 , H04B2210/252
Abstract: Aspects are generally directed to receivers and methods for actively demodulating optical signals. In one example, a receiver includes an optical resonator to receive an optical signal, the optical resonator including an active optical medium interposed between first and second semi-reflective surfaces, where the active optical medium is configured to accumulate resonant optical signal energy inside the optical resonator based on the received optical signal, the second semi-reflective surface is positioned to emit output optical signal energy, and the optical resonator is configured to disturb the output optical signal energy in response to a variation in the received optical signal. The receiver may further include a detector configured to detect the disturbance in the output optical signal energy, and a pump source coupled to the active optical medium to excite the active optical medium to generate an optical gain in the received optical signal.
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Patent Agency Ranking
56.发明申请公开(公告)号：US20180091228A1
公开(公告)日：2018-03-29
申请号：US15717175
申请日：2017-09-27
Applicant: RAYTHEON COMPANY
Inventor： Andrew Kowalevicz , Gary M. Graceffo , Benjamin P. Dolgin
CPC classification number: H04B10/671 , G02B5/28 , G02B17/004 , G02F2/00 , H04B10/1123
Abstract: Optical signal receivers and methods are provided that include an optical resonator that allows an optical signal to enter and optical signal energy to accumulate at regions inside the optical resonator. A portion of optical signal energy is emitted from among various regions of the optical resonator, such that a combination of the emitted optical signal energy is disturbed when a phase transition occurs in the received optical signal. A detector aligned with the output detects the combined emitted optical signal energy and is configured to detect the disturbance and determine a characteristic of the phase transition in the received optical signal based upon the disturbance.
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公开(公告)号：US20180054259A1
公开(公告)日：2018-02-22
申请号：US15679470
申请日：2017-08-17
Applicant: RAYTHEON COMPANY
Inventor： Andrew Kowalevicz , Benjamin P. Dolgin , Gary M. Graceffo
CPC classification number: H04B10/676 , H04B10/25 , H04B10/5561 , H04B10/61 , H04B10/67 , H04B10/69
Abstract: Optical signal receivers and methods are provided that include an optical resonator that allows optical signal energy to enter and accumulate inside the optical resonator. A portion of optical signal energy is emitted from the optical resonator at an output, such that the emitted optical signal energy is disturbed when a transition occurs in the received optical signal energy. A detector aligned with the output detects the emitted optical signal energy and is configured to detect the disturbance to the emitted optical signal energy and determine a characteristic of the transition in the received optical signal energy based upon the disturbance.
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公开(公告)号：US20180026817A1
公开(公告)日：2018-01-25
申请号：US15215937
申请日：2016-07-21
Applicant: Raytheon Company
Inventor： Gary M. Graceffo , Andrew Kowalevicz
CPC classification number: H04L27/20 , H04B7/0404 , H04B7/06
Abstract: An apparatus, method and article of manufacture comprise a transceiver coupled to a phased array of antenna elements that are configured into pluralities of antenna elements to generate N modes of orthogonal radio waves where N is equal to or greater than 2. The coupling is via a plurality of 16-quadrature phase shift key (16-QPSK) modulators, each which is coupled to a respective one of the pluralities of antenna elements to modulate data onto a respective one of the N modes of orthogonal radio waves, to cause each of the N modes to operate as an independent data channel. For the case of N=2 modes, two 16-QPSK modulators generate independent 16 -QPSK constellations, one for the first of the two modes and one for the second of the two modes, such that two 16-QPSK constellations are independent of each other, are orthogonal, and are on the same frequency.
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公开(公告)号：US20170264472A1
公开(公告)日：2017-09-14
申请号：US15458233
申请日：2017-03-14
Applicant: Raytheon Company
Inventor： Benjamin Dolgin , Gary M. Graceffo , Andrew Kowalevicz
CPC classification number: H04L27/20 , H04L5/0048 , H04L27/16
Abstract: A phase detection system includes first and second phase mixing circuits in signal communication with a signal phase adjuster module. The first mixing circuit generates a first digital modulated frequency signal based on an input signal and a first reference phase signal. The second mixing circuit generates a second digital modulated frequency signal based on the input signal and a second reference phase signal, which phase shifted with respect to the first reference phase signal. The phase detection system further includes a phase identification (ID) module in signal communication with the first mixing circuit and the second mixing circuit. The phase ID module generates a phase signal based on the first digital modulated frequency signal and the second digital modulated frequency signal. The phase signal indicates a phase of the input signal.
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公开(公告)号：US20170227983A1
公开(公告)日：2017-08-10
申请号：US15581014
申请日：2017-04-28
Applicant: Raytheon Company
Inventor： Andrew Kowalevicz
CPC classification number: G06F1/12 , G09C1/00 , H04B1/0475 , H04L7/042 , H04L7/065 , H04L9/08 , H04L9/16 , H04L25/4902 , H04L43/0864 , H04L43/087
Abstract: A method for carrying data on a live host signal, comprising the steps of: varying timing in a host signal in response to data to be encoded, wherein variations in timing are smaller than a sampling period for detection and capture of the digital signal receiving the live host signal; sensing pulse timing variations in the received live host signal by comparison to a reference signal; and determining information in the sensed timing variations.
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