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公开(公告)号：US11373657B2
公开(公告)日：2022-06-28
申请号：US16864856
申请日：2020-05-01
摘要： A system for identifying audio data includes a feature extraction module receiving unknown input audio data and dividing the unknown input audio data into a plurality of segments of unknown input audio data. A similarity module receives the plurality of segments of the unknown input audio data and receives known audio data from a known source, the known audio data being divided into a plurality of segments of known audio data. The similarity module performs comparisons between the segments of unknown input audio data and respective segments of known audio data and generates a respective plurality of similarity values representative of similarity between the segments of the comparisons, the comparisons being performed serially. The similarity module terminates the comparisons if the similarity values indicate insufficient similarity between the segments of the comparisons, prior to completing comparisons for all segments of the unknown input audio data.
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公开(公告)号：US20200153523A1
公开(公告)日：2020-05-14
申请号：US16744066
申请日：2020-01-15
发明人： Michael Ready
摘要： A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.
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公开(公告)号：US10574374B2
公开(公告)日：2020-02-25
申请号：US15880242
申请日：2018-01-25
发明人： Michael Ready
摘要： A frequency-selective system that may be used as, or as part of, an add/drop multiplexer. An input signal is fed to a Mach-Zehnder interferometer configured to drop, or suppress, by destructive interference, a signal component in a first frequency band from among a plurality of frequency bands. One or more bandpass filters in one arm of the Mach-Zehnder interferometer suppress other frequencies, outside of the first frequency band, so that signals at these other frequencies are not suppressed by destructive interference and are present at the output of the Mach-Zehnder interferometer. A coupler connected after the output of the Mach-Zehnder interferometer adds, into the signal path, a replacement for the dropped signal.
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公开(公告)号：US20190081878A1
公开(公告)日：2019-03-14
申请号：US15698945
申请日：2017-09-08
发明人： Nigel R. Lawrence
CPC分类号： H04L43/0894 , H04L63/0209 , H04L63/0428 , H04L63/08 , H04L63/123 , H04L2012/5672
摘要： A data transfer system is configured to transfer data from a data transmitting site to a data receiving site. The data transfer system includes a low-side network, at least one high-side network, and a one-way data (OWD) link. The OWD link is configured to perform unidirectional data transfer from the low-side network to the at least one high-side network. The OWD link continuously synchronizes the low-side network with the at least one high-side network while continuously transferring data through the OWD link.
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5.发明申请SYSTEM AND METHOD FOR DISTRIBUTION FREE TARGET DETECTION IN A DEPENDENT NON-GAUSSIAN BACKGROUND 有权在非依赖性非高斯背景下分配免费目标检测的系统和方法公开(公告)号：US20140361919A1
公开(公告)日：2014-12-11
申请号：US13912596
申请日：2013-06-07
IPC分类号： G01S13/00
CPC分类号： G01S13/006 , G01S7/2923 , G01S7/2927
摘要： A method for target detection includes: receiving input data via an input signal; generating a histogram from the received data by a processor; rank-ordering the received data based on power or amplitude of the received input signal; comparing the ranked data received in a current time period to the ranked data received in a previous time period to calculate a Bivariate Conditional Exceedance function (BCEF); utilizing the calculated BCEF to estimate a Gumbel Copula parameter; accumulating a log-likelihood statistic from the estimated Gumbel Copula parameter and the generated histogram; comparing the log-likelihood statistic with a threshold value; and determining a detection of the target, when the log-likelihood statistic is below the threshold value.
摘要翻译： 一种用于目标检测的方法包括：经由输入信号接收输入数据; 由处理器从所接收的数据生成直方图; 基于所接收的输入信号的功率或振幅对接收的数据进行排序排序; 将在当前时间段中接收的排名数据与在先前时间段中接收的排名数据进行比较，以计算双变量条件超越函数（BCEF）; 利用计算出的BCEF来估计Gumbel Copula参数; 从估计的Gumbel Copula参数和生成的直方图中累积对数似然统计量; 将对数似然统计量与阈值进行比较; 以及当所述对数似然统计量低于所述阈值时，确定所述目标的检测。
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公开(公告)号：US20140274054A1
公开(公告)日：2014-09-18
申请号：US13837271
申请日：2013-03-15
IPC分类号： H04W36/00
CPC分类号： H04W36/0066 , H04W24/08 , H04W36/08
摘要： A system and method for determining a correspondence between an Abis signaling channel and an air channel frequency designator. A monitoring instrument may be connected to multiple E1 circuits, monitoring messages sent on Abis signaling channels. By repeatedly observing channel activation messages (135) preceding channel assignment messages (145) of interest, or channel assignment messages (145) following channel activation messages (135) of interest, the instrument may infer a correspondence between an Abis signaling channel and an air channel frequency designator.
摘要翻译： 一种用于确定Abis信令信道和空中信道频率指示符之间的对应关系的系统和方法。 监控仪器可以连接到多个E1电路，监控在Abis信令通道上发送的消息。 通过在感兴趣的信道分配消息（145）之后重复观察信道激活消息（135）或在感兴趣的信道激活消息（135）之后的信道分配消息（145），仪器可以推断出Abis信令信道和空中的对应关系 通道频率指示符。
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公开(公告)号：US12020697B2
公开(公告)日：2024-06-25
申请号：US16929383
申请日：2020-07-15
发明人： Jonathan C. Wintrode
IPC分类号： G10L15/197 , G06F18/2415 , G06N20/00 , G10L15/14 , G10L15/16
CPC分类号： G10L15/197 , G06F18/24155 , G06N20/00 , G10L15/144 , G10L15/16
摘要： An audio keyword searcher arranged to identify a voice segment of a received audio signal; identify, by an automatic speech recognition engine, one or more phonemes included in the voice segment; output, from the automatic speech recognition engine, the one or more phonemes to a keyword filter to detect whether the voice segment includes any of the one or more first keywords of the first keyword list and, if detected, output the one or more phonemes included in the voice segment to a decoder but, if not detected, not output the one or more phonemes included in the voice segment to the decoder. If the one or more phonemes are output to the decoder: generate a word lattice associated with the voice segment; search the word lattice for one or more second keywords, and determine whether the voice segment includes the one or more second keywords.
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公开(公告)号：US20240036922A1
公开(公告)日：2024-02-01
申请号：US17878777
申请日：2022-08-01
发明人： Jonathan Wintrode
CPC分类号： G06F9/4887 , G06F9/546
摘要： Method for distributed asynchronous dependency-based content processing includes: receiving a multi-media digital content and a task to be performed on the multi-media digital content; determining types of the multi-media digital content; generating a workflow graph for each type of the content, each workflow graph including data dependency conditions of the task; generating a task message for each workflow graph; broadcasting the task messages to a respective task queue of an initial state of a workflow manager; responding to the broadcast task messages by a respective processing node;
processing the task based on the respective workflow graph in the broadcast task message, and including a result of the processing for each workflow graph in a result message; broadcasting the result messages by the respective processing node; accumulating the broadcast result messages responsive to respective workflow graphs; and outputting the accumulated results to a user or an external system.-
公开(公告)号：US11282499B2
公开(公告)日：2022-03-22
申请号：US16924564
申请日：2020-07-09
发明人： Jonathan C. Wintrode
摘要： A system for identifying a language in audio data includes a feature extraction module for receiving an unknown input audio data stream and dividing the unknown input audio data stream into segments. A similarity module receives the segments and receives known-language audio data models for known languages. For each segment, the similarity module performs comparisons between the segment and the known-language audio data models and generates probability values representative of the probabilities that the segment includes audio data of the known languages. A processor receives the probability values for each segment and computes an entropy value for the probabilities for each segment. If the entropy value for a segment is less than the entropy value for a previous segment, the processor terminates the comparisons prior to completing comparisons for all segments.
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公开(公告)号：US10924308B1
公开(公告)日：2021-02-16
申请号：US16745204
申请日：2020-01-16
发明人： Michelle L. Crawford
IPC分类号： H04L25/49 , H04B1/7176 , H03H17/02 , H04L5/06 , G06N20/00 , H04L27/26 , G01S7/02 , H04L27/36
摘要： System and method for identifying an RF emitter include: channelizers for channelizing RF signals into several channels; a compressive sensing (CS) encoder for each channel to CS encode the channelized signal to produce an encoded channelized signal in each of the plurality of channels; a summer to sum the encoded channelized signals of all of the plurality of channels to produce an I/Q data; a channelized pulse detection circuit to detect pulses in each channel and produce encoded pulse snippets from the I/Q data; a CS decoder for each channel to CS decode the encoded pulse snippets; a first machine learning device to characterize the decoded pulse snippets and to produce pulse description words (PDWs); and a second machine learning device to associate the PDWs with one or more RF emitters and identify the one or more RF emitters.
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