光受信機
    1.
    发明申请
    光受信機 审中-公开

    公开(公告)号:WO2023022108A1

    公开(公告)日:2023-02-23

    申请号:PCT/JP2022/030764

    申请日:2022-08-12

    IPC分类号: H04B10/69 H03F3/08

    摘要: 光受信機は、受光素子と、キャパシタと、トランスインピーダンスと、ベースと、を備える。受光素子は、半導体層、半導体層の主面に設けられるカソード電極と電気的に接続された第1導電膜、半導体層の主面とは反対側に設けられ、第1導電膜と導電体を介して電気的に接続する第2導電膜、及び、半導体層の主面に設けられるアノード電極と電気的に接続されたアノードパターンを有する。トランスインピーダンスは、第1ワイヤを介して第1導電膜と電気的に接続された第1パッド、及び第2ワイヤを介してアノードパターンと電気的に接続された第2パッドを有する。ベースは、主面に受光素子及びトランスインピーダンスを搭載する。第2導電膜とベースの主面との間の静電容量は、第1導電膜と第2導電膜との間の寄生容量よりも大きく、導電体のインダクタンスは、第1ワイヤのインダクタンスよりも小さい。

    IMPROVED INTERMODULATION SUPPRESSION IN PHASED ARRAYS USING VOLTERRA FILTERS

    公开(公告)号:WO2023009217A1

    公开(公告)日:2023-02-02

    申请号:PCT/US2022/032295

    申请日:2022-06-06

    申请人: RAYTHEON COMPANY

    IPC分类号: H04B1/12 H04B10/69 H04B3/04

    摘要: A method of beamforming is provided. A single non-linear equalization (NLEQ) coefficient set is generated in beamspace, the single NLEQ coefficient set configured to characterize non-linear behavior of a system having an array of N elements. M parallel digital signals are received, for transmission by N channels, respectively, the N channels corresponding to the N elements. Each of the M respective parallel digital signals are equalized, using an NLEQ filter based on the single NLEQ coefficient set, wherein the single NLEQ coefficient set is used for each of the N elements and wherein the equalizing is configured to generate a set of M linearized parallel digital signals. Using a single summer, the M linearized parallel digital signals are summed, to produce one or more beamspace channelized output signals.

    CIRCUITRY AND METHODS OF OPERATING A PHOTODIODE

    公开(公告)号:WO2022126178A1

    公开(公告)日:2022-06-23

    申请号:PCT/AU2021/051485

    申请日:2021-12-14

    IPC分类号: G01J1/44 H04B10/69

    摘要: The present invention relates generally to a photodiode (310) and, in particular, to operating a photodiode (310) in a zero-mode operation, where the photodiode (310) operates at either zero current or zero voltage. Accordingly, there is provided a circuit (e.g., 300A, 300B) configured for detecting light, comprising: a photodiode (310); and a circuit (300A, 300B) configured for operating the photodiode at zero-mode.

    DETECTING INTENSITY MODULATED OPTICAL SIGNAL BY LOW BANDWIDTH RECEIVING DEVICE

    公开(公告)号:WO2022100860A1

    公开(公告)日:2022-05-19

    申请号:PCT/EP2020/082187

    申请日:2020-11-16

    IPC分类号: H04B10/69

    摘要: A method for detecting an intensity modulated optical signal by a low bandwidth receiving device, includes receiving, by a processor, the intensity modulated optical signal. A first multilevel detection is performed at M levels on the intensity modulated optical signal, where M>1. Further, a second multilevel detection is performed at N levels on the intensity modulated optical signal, where N>M. The detected M level signal is transformed into an expected N level signal. Based on a comparison of the expected N level signal and the detected N level signal, an error is detected in the detected M level signal. Based on the detected error, the detected M level signal is corrected.

    リチウムイオン電池および光通信システム

    公开(公告)号:WO2021241646A1

    公开(公告)日:2021-12-02

    申请号:PCT/JP2021/020042

    申请日:2021-05-26

    摘要: 本開示は、組電池を構成する各単電池が有する発光部から光信号を出力する構成において、配線の手間の煩雑性を削減し、位置ずれ許容量の増大を可能にするリチウムイオン電池を提供する。外装体(70)内に、積層された複数の単電池(30)で構成された組電池(50)を収容したリチウムイオン電池(1)において、各単電池に当該単電池の特性に基づいて発光して光信号を出力する発光部(20)を備えるとともに、発光部の発光面に隣接または近接して光導波路(導光板)(60)を配置して複数の単電池の発光部からの光信号の共通伝送経路となるようにした。

    OPTICAL-ELECTRONIC INTEGRATED RF LEAKAGE INTERFERENCE CANCELLATION SYSTEM AND METHOD FOR CW RADAR

    公开(公告)号:WO2021184548A1

    公开(公告)日:2021-09-23

    申请号:PCT/CN2020/093097

    申请日:2020-05-29

    IPC分类号: H04B10/69

    摘要: The invention provides an optical-electronic integrated RF leakage interference cancellation system and method for continuous wave radars. It belongs to the technical filed of radars. The optical-electronic integrated RF leakage interference cancellation system cancels the RF leakage interference by integrating of the microwave photonic link and the cable link. The microwave photonic link implements the phase adjustment, time delay adjustment and amplitude adjustment of the microwave signal tapped from the continuous wave source in the transmitter and realizes the cancellation matching conditions of the out of phase, the matching delay time and the same amplitude with the leakage interference signal. It has the advantages of broad frequency band, large bandwidth, and high tuning resolution, which enables the effective suppression of the RF leakage interference and ensures the high transmit-to-receive isolation for continuous wave radars.

    OPTIMAL EQUALIZATION PARTITIONING
    7.
    发明申请

    公开(公告)号:WO2021142216A1

    公开(公告)日:2021-07-15

    申请号:PCT/US2021/012636

    申请日:2021-01-08

    发明人: LATCHMAN, Ryan

    摘要: A communication interface comprising a host with non-linear equalizers configured to perform non-linear equalization. Also part of the interface is a host to optic module channel electrically connecting the host to an optic module and the optic module. The optic module comprises a transmitter and a receiver. The transmitter includes a linear equalizer and an electrical to optical module configured to convert the equalized signal from the driver to an optical signal, and transmit the optical signal over a fiber optic cable, such that the transmitter does not perform non-linear processing. The receiver includes a photodetector, configured to convert the received optic signal to a received electrical signal, and a linear amplifier configured to perform linear amplification on the received electrical signal. A driver sends the amplified received signal over an optic module to host channel, such that the receive does not perform non¬ linear processing.

    一种频域均衡的方法、均衡器、光接收机和系统

    公开(公告)号:WO2021121056A1

    公开(公告)日:2021-06-24

    申请号:PCT/CN2020/134114

    申请日:2020-12-05

    发明人: 韩纪龙 李良川

    IPC分类号: H04L25/03 H04B10/69

    摘要: 本发明实施例提供了一种频域均衡的方法、均衡器、光接收机和系统。其中,频域均衡的方法包括:光接收机获取第一复数信号,该第一复数信号为时域信号,并且第一复数信号基于两路相互独立的数字电信号获得;光接收机将所述第一复数信号转换为频域信号,并将频域上的第一复数信号和抽头系数相乘,得到第二复数信号,所述抽头系数用于对所述频域上的第一复数信号进行信号补偿;光接收机将所述第二复数信号转换为时域信号,并将时域上的第二复数信号分离为两路实数信号,并输出所述两路实数信号。通过将两路数字电信号合并为一路复数信号执行频域均衡,降低了由于时域均衡的抽头个数过大引入的功耗和占用的资源,降低了系统的复杂度。

    LIGHT DETECTING DEVICE AND SYSTEM
    9.
    发明申请

    公开(公告)号:WO2021059619A1

    公开(公告)日:2021-04-01

    申请号:PCT/JP2020/023498

    申请日:2020-06-16

    摘要: A light detecting device includes first pixel circuitry including a first avalanche photodiode, and second pixel circuitry including a second avalanche photodiode, a first delay circuit including an input coupled to a cathode of the second avalanche photodiode, a first circuit including a first input coupled to the cathode of the second avalanche photodiode, and a second input coupled to an output of the first delay circuit. The light detecting device includes a control circuit coupled to an output of the first circuit and configured to control a potential of an anode of the first avalanche photodiode based on the output of the first circuit. The control circuit is configured to control a potential of an anode of the second avalanche photodiode based on the output of the first circuit.

    UNEQUAL DECISION REGIONS FOR THROUGHPUT INCREASES FOR OPTICAL COMMUNICATIONS

    公开(公告)号:WO2020214341A1

    公开(公告)日:2020-10-22

    申请号:PCT/US2020/024328

    申请日:2020-03-23

    IPC分类号: H04B10/69 H04B10/70

    摘要: Disclosed in some examples, are optical devices, systems, and machine-readable mediums that send and receive multiple streams of data across a same optical communication path (e.g., a same fiber optic fiber) with a same wavelength using different light sources transmitting at different power levels - thereby increasing the bandwidth of each optical communication path. Each light source corresponding to each stream transmits at a same frequency and on the same optical communication path using a different power level. The receiver differentiates the data for each stream by applying one or more detection models to the photon counts observed at the receiver to determine likely bit assignments for each stream.