公开(公告)号：US20230261613A1

公开(公告)日：2023-08-17

申请号：US17670814

申请日：2022-02-14

Applicant: Raytheon Company

Inventor： Jacob M. Miller ,  H. Brown Cribbs, III

IPC: H03D9/00 ,  G06N3/04

CPC classification number: H03D9/00 ,  G06N3/04

Abstract: A method includes obtaining pairs of in-phase (I) and quadrature (Q) samples associated with a signal to be demodulated. The method also includes providing a set of the I/Q pairs to a trained AI/ML model. The set of the I/Q pairs includes an I/Q pair associated with a symbol being demodulated and at least one I/Q pair associated with at least one prior symbol that has been demodulated. In addition, the method includes using the trained AI/ML model to generate a symbol estimate for the symbol based on the set of the I/Q pairs, where the symbol estimate represents a portion of data that is encoded in the signal.

公开(公告)号：US20130281029A1

公开(公告)日：2013-10-24

申请号：US13490703

申请日：2012-06-07

Applicant: Cheol-Woong Lee

Inventor： Cheol-Woong Lee

IPC: G06G7/12 ,  H04W88/02

CPC classification number: H03D7/12 ,  H03D9/00

Abstract: An integrated circuit is described. The integrated circuit includes millimeter-wavelength transceiver circuitry. The millimeter-wavelength transceiver circuitry includes a local oscillator that generates a millimeter-wavelength oscillator signal. The millimeter-wavelength transceiver circuitry also includes mixers coupled to the local oscillator. The mixers are within an area without millimeter-wavelength structures. The mixers convert signals based on the millimeter-wavelength oscillator signal.

Abstract translation: 描述了集成电路。 集成电路包括毫米波长收发器电路。 毫米波长收发器电路包括产生毫米波长振荡器信号的本地振荡器。 毫米波长收发器电路还包括耦合到本地振荡器的混频器。 混合器在没有毫米波长结构的区域内。 混频器基于毫米波长振荡器信号转换信号。

公开(公告)号：US07791793B2

公开(公告)日：2010-09-07

申请号：US12002763

申请日：2007-12-19

Applicant: Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

Inventor： Masaji Noguchi ,  Tomohiro Ueno ,  Yutaka Kai ,  Setsuo Yoshida

IPC: H04J14/02 ,  G05F1/00 ,  H01S5/00

CPC classification number: H04Q11/0005 ,  H03D9/00 ,  H04Q2011/0011 ,  H04Q2011/0013 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0039

Abstract: A drive circuit is provided for a semiconductor optical amplifier type gate switch includes a first transmission path and a second transmission path. The first transmission path includes a common first sub-path between a signal source and a first node; and an individual second sub-path for each of a plurality of operational amplifiers between the first node and a corresponding one of the operational amplifiers. The second transmission path includes an individual third sub-path between each of the operational amplifiers and a second node; and a common fourth sub-path between the second node and the semiconductor optical amplifier type gate switches. Transmission delay times of all the individual second sub-paths are equal, and transmission delay times of all the individual third sub-paths are equal.

Abstract translation: 提供了一种用于半导体光放大器型栅极开关的驱动电路，其包括第一传输路径和第二传输路径。 第一传输路径包括信号源和第一节点之间的公共第一子路径; 以及用于第一节点和运算放大器中的相应一个之间的多个运算放大器中的每一个的单独的第二子路径。 第二传输路径包括每个运算放大器和第二节点之间的单独的第三子路径; 以及第二节点和半导体光放大器型栅极开关之间的公共第四子路径。 所有各个第二子路径的传输延迟时间相等，并且所有各个第三子路径的传输延迟时间相等。

公开(公告)号：US07567372B2

公开(公告)日：2009-07-28

申请号：US10568310

申请日：2003-08-29

Applicant: Marcus Schorpp

Inventor： Marcus Schorpp

IPC: G02B26/00

CPC classification number: G09G3/3433 ,  G09G2300/0809 ,  G09G2330/023 ,  H03D9/00

Abstract: The invention relates to an electrically controlled device, which device comprises at least one electrically and individually controllable cell (L,R) with at least two separate electrode structures (10,50) arranged within the cell, each of the electrode structures capable of storing electric charges (C10,C50). The device further comprises a charge transfer mechanism (P,S10,S20,TFT10,TFT50) to transfer electric charges in a temporally controlled manner between the at least two separate electrode structures (10,50), and that for at least one of the electrode structures within the cell, the charge transfer mechanism comprises substantially the only means for providing electrical power and/or electrical driving. The invention reduces the power consumption of the electrode structures by use of a new type of in-cell type charge recycling. The invention is especially suitable to be used in light modulator components based on the use of electrically deformable viscoelastic materials.

Abstract translation: 本发明涉及电控装置，该装置包括至少一个电和可单独控制的电池（L，R），其具有布置在电池内的至少两个分开的电极结构（10,50），每个电极结构能够存储 电荷（C10，C50）。 该装置还包括电荷转移机构（P，S10，S20，TFT10，TFT50），以在时间上控制的方式在至少两个分开的电极结构（10,50）之间转移电荷，并且对于至少一个 电池内的电极结构，电荷转移机构基本上包括用于提供电力和/或电驱动的唯一装置。 本发明通过使用新型的电池内电荷再循环来降低电极结构的功耗。 本发明特别适用于基于使用电可变形粘弹性材料的光调制器部件。

公开(公告)号：US20050207587A1

公开(公告)日：2005-09-22

申请号：US10525539

申请日：2003-08-26

Applicant: Frank Pompei

Inventor： Frank Pompei

IPC: G10K15/02 ,  H03D9/00 ,  H04B1/02 ,  H04B3/00 ,  H04B11/00

CPC classification number: H03D9/00 ,  G10K15/02 ,  H04B11/00

Abstract: A system using the nonlinearity of a propagation medium to demodulate an ultrasonic wave having audio modulated onto the ultrasonic frequency, audio signal processing circuitry providing a delayed audio signal and an envelope signal which is a function of peaks of the audio signal over a predetermined interval. The delayed audio signal and the envelope signals are combined with the delay in the audio allowing the envelope signal to accurately be aligned with the audio signal in the combination.

Abstract translation: 使用传播介质的非线性来解调具有调制到超声波频率上的音频的超声波的系统，提供延迟的音频信号的音频信号处理电路和作为预定间隔上的音频信号的峰值的函数的包络信号。 延迟的音频信号和包络信号与音频中的延迟相结合，允许包络信号与组合中的音频信号精确地对齐。

公开(公告)号：US20050141582A1

公开(公告)日：2005-06-30

申请号：US10880766

申请日：2004-06-28

Applicant: Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

Inventor： Sang-Soo Lee ,  Heuk Park ,  Hyunwoo Cho ,  Sang-Kyu Lim ,  Je-Soo Ko

IPC: H04B10/04 ,  G02F2/00 ,  H01S3/067 ,  H01S3/097 ,  H01S3/30 ,  H03D9/00 ,  H04B10/145

CPC classification number: H01S3/302 ,  G02F2/002 ,  H01S3/067 ,  H03D9/00 ,  H04B10/50

Abstract: An apparatus and a method for generating an optical carrier is disclosed. The apparatus includes: a light source generating a pump light; a SBS generator for stimulated Brillouin scattering the pump light to generate a stokes light from the light source; an attenuator for controlling an amplitude of the pump light from the light source to generate an amplitude controlled pump light; and a detector for heterodyne beating the stokes light and the amplitude controlled pump light to generate an optical carrier.

Abstract translation: 公开了一种用于产生光学载体的装置和方法。 该装置包括：产生泵浦光的光源; 用于受激布里渊的SBS发生器将泵浦光散射以产生来自光源的斯托克斯光; 衰减器，用于控制来自光源的泵浦光的振幅，以产生振幅控制的泵浦光; 以及用于外差打击斯托克斯光和振幅控制的泵浦光的检测器，以产生光学载体。

公开(公告)号：US20040051926A1

公开(公告)日：2004-03-18

申请号：US10381252

申请日：2003-09-04

Inventor： Peter Gulden ,  Patric Heide ,  Martin Vossiek

IPC: G02F001/00

CPC classification number: H03D9/00 ,  G01S7/497 ,  G01S17/36

Abstract: The PMD system comprises at least one PMD element (PMD), at least one transmitter (E), whose intensity can be modulated, and at least one controlling electronic device (FG) by means of which the PMD element (PMD) and the transmitter (E) can be controlled with at least one respective modulation voltage (Umod, Umod, UTxmod), and by means of which a phase shift (nullf) can be altered by an actuating signal. The PMD system is characterized in that a controlled system (CTR) is provided into which at least one output signal (Ua, Ub, Ud) of the PMD element (PMD) can be fed as a controlled variable (Unulld) and whose output signal (U1phs, U1fc) can be fed into the controlling electronic device (FG) as an actuating signal, whereby the controlled variable (Unulld) can be set to the value of a predetermined target variable by the controlled system (CTR).

Abstract translation: PMD系统包括至少一个PMD元件（PMD），其强度可被调制的至少一个发射器（E）和至少一个控制电子设备（FG），PMD元件（PMD）和发射器 （E）可以用至少一个相应的调制电压（Umod，Umod，UTxmod）进行控制，通过该驱动信号可以改变相移（Deltaf）。 PMD系统的特征在于，提供受控系统（CTR），PMD元件（PMD）的至少一个输出信号（Ua，Ub，Ud）可以作为受控变量（U'd）馈送到其中，并且其 输出信号（U1phs，U1fc）可以作为致动信号馈送到控制电子设备（FG）中，由此受控系统（CTR）可以将受控变量（U'd）设置为预定目标变量的值， 。

公开(公告)号：US20030114117A1

公开(公告)日：2003-06-19

申请号：US10288723

申请日：2002-11-06

Inventor： Yee Loy Lam ,  Jianping Yao ,  Yan Zhou

IPC: H04B001/40

CPC classification number: H03D9/00

Abstract: There is provided a tunable radio frequency (RF) signal generator comprising: a bi-directional ring laser and a photodetector. The ring laser includes a phase modulator driven by an electrical signal. In use, the modulator imparts a phase shift in dependence on the electrical signal to at least one of a mutually coherent clockwise and counter-clockwise propagating optical signal in the ring laser so as to produce a predetermined difference in the frequency of the clockwise and counter-clockwise propagating signals. The photodetector is optically coupled to an optical output of the ring laser, and in use the photodetector generates a radio frequency signal in dependence on the difference in frequency of the clockwise and counter-clockwise propagating optical signals. There is also provided a method for generating a tunable radio frequency signal using the tunable radio frequency (RF) signal generator.

Abstract translation: 提供了一种可调谐射频（RF）信号发生器，包括：双向环形激光器和光电检测器。 环形激光器包括由电信号驱动的相位调制器。 在使用中，调制器根据电信号向环形激光器中相互相干的顺时针和逆时针传播的光信号中的至少一个施加相移，从而产生顺时针和计数器的频率的预定差值 时钟传播信号。 光电检测器光耦合到环形激光器的光输出，并且在使用中，光电检测器根据顺时针和逆时针传播的光信号的频率差产生射频信号。 还提供了一种使用可调谐射频（RF）信号发生器产生可调谐射频信号的方法。

公开(公告)号：US06487004B1

公开(公告)日：2002-11-26

申请号：US09635985

申请日：2000-08-09

Applicant: Shane J. Strutz ,  Keith J. Williams

Inventor： Shane J. Strutz ,  Keith J. Williams

IPC: G02F202

CPC classification number: H04B1/28 ,  G02F2/002 ,  H03D9/00 ,  H04B2210/006

Abstract: The optical image reject down converter maps a received radio frequency (RF) into an arbitrary intermediate frequency range and precludes interference between the received signals. A received radio frequency signal is downconverted into an intermediate frequency band for use by an electronic circuit in other devices. Optical light is divided, in a first path light is transferred into an optical sideband by a first optical modulator or phase modulator. Light in a second path is converted into 18 GHz sidebands. The signal is amplified and additional sidebands are generated by a received 9 GHz signal. The filtered sideband is heterodyned with the 25 GHz signal of path one, resulting in downconversion to 2 GHZ. Image frequencies which are present in the optical link are filtered and are rejected.

Abstract translation: 光学图像拒绝转换器将接收到的射频（RF）映射到任意的中间频率范围，并且排除接收到的信号之间的干扰。 接收的射频信号被下变频成中频带，供其他装置中的电子电路使用。 光束被分割，在第一路径中，光被第一光调制器或相位调制器传输到光边带。 第二路中的光被转换成18GHz边带。 信号被放大，并且附加的边带由接收的9GHz信号产生。 经滤波的边带与路径1的25 GHz信号进行外差，导致下变频至2 GHZ。 存在于光学链路中的图像频率被滤波并被拒绝。

公开(公告)号：US06014243A

公开(公告)日：2000-01-11

申请号：US150774

申请日：1998-09-10

Applicant: Naoto Saeki

Inventor： Naoto Saeki

IPC: H04B10/516 ,  H03C3/38 ,  H03D9/00 ,  H04B10/2507 ,  H04B10/548 ,  H04B10/58 ,  H04B10/61 ,  H04B10/04 ,  G02F1/015

CPC classification number: H03D9/00 ,  H01S5/40

Abstract: An input signal input to a 180 degree distributor is distributed as two signals, one of which with its phase inverted 180 degrees is input to a first modulation light source and the other with its phase unchanged is input to a second modulation light source; both signals are modulated with the intensity and the frequency of the light emission dependent on signal amplitude. The modulated signals are coupled by an optical coupler and subjected to heterodyne detection through a photodetector, where their light intensity modulation components offset each other when added and the multiplication of their light frequency components results in the frequency transition quantity doubling.

Abstract translation: 输入到180度分配器的输入信号被分配为两个信号，其中一个被相位反转180度输入到第一调制光源，另一个信号被输入到第二调制光源; 两个信号被调制，其强度和发射频率取决于信号幅度。 调制信号由光耦合器耦合，并通过光电检测器进行外差检测，其中它们的光强度调制分量在加入时彼此偏移，并且它们的光频率分量的乘积导致频率转换量加倍。