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    • 3. 发明申请
    • Methods and systems for processing and displaying data
    • 用于处理和显示数据的方法和系统
    • US20090006516A1
    • 2009-01-01
    • US11823465
    • 2007-06-27
    • Stephen T. Ha
    • Stephen T. Ha
    • G06F17/14G06F15/00
    • G01S7/021G01S7/4802G01S7/52001
    • Methods and systems of processing and displaying data that include obtaining and processing time-time data to obtain an in-phase sum of the time-time data, and of providing and utilizing the in-phase sum of the time-time data to generate a graphical display of the Radon sum of the time-time data. The in-phase sum of the time-time data may be provided for display, for example, by outputting a data signal suitable for generating a graphical representation of the in-phase sum of the time-time data, and the output data signal may be utilized to generate a graphical representation of the in-phase sum of the time-time data.
    • 处理和显示数据的方法和系统包括获得和处理时间数据以获得时间 - 时间数据的同相和,以及提供和利用时间 - 时间数据的同相和以产生 图形显示的Radon和的时间数据。 可以提供时间 - 时间数据的同相相加,例如通过输出适于产生时间 - 时间数据的同相和的图形表示的数据信号来显示,并且输出数据信号可以 用于产生时间 - 时间数据的同相和的图形表示。
    • 4. 发明申请
    • Methods and systems for detecting repetitive synchronized signal events
    • 用于检测重复同步信号事件的方法和系统
    • US20090003422A1
    • 2009-01-01
    • US11823472
    • 2007-06-27
    • Stephen T. Ha
    • Stephen T. Ha
    • H04B3/46H04J11/00H04L27/10
    • H04B14/006
    • Repetitive synchronized signal events may be detected in received raw signal data that contains a signal. The type of signal, element length (or minimum interval) and/or other characteristics of such repetitive synchronized signal events may also be optionally determined. The disclosed methods and systems may be implemented for processing signals in real time as part of a receiver or transceiver system, or may be implemented by one or more computer processing components that are configured to process stored raw signal data or signal data received from another source, such as across a computer network.
    • 可以在包含信号的接收的原始信号数据中检测重复的同步信号事件。 信号的类型,元件长度(或最小间隔)和/或这种重复同步信号事件的其它特性也可以任意地确定。 所公开的方法和系统可以被实现为实时处理信号作为接收器或收发器系统的一部分,或者可以由配置成处理存储的原始信号数据或从另一个源接收的信号数据的一个或多个计算机处理部件来实现 ,例如跨计算机网络。
    • 5. 发明授权
    • Methods and systems to discriminate between PSK and FSK signals
    • 用于区分PSK和FSK信号的方法和系统
    • US08275073B2
    • 2012-09-25
    • US12456075
    • 2009-06-11
    • Stephen T. HaMichael L. MahaffeyFrank A. Boyle
    • Stephen T. HaMichael L. MahaffeyFrank A. Boyle
    • H03D3/00H04L27/10H04J9/00H04L5/04
    • H04L27/0012H04L27/10H04L27/18
    • Methods and systems are disclosed herein for discriminating phase-shift-key (PSK) modulated signals from frequency-shift-key (FSK) modulated signals in received signal streams. First, a bit frequency analysis is applied to a digital signal stream representing the received signal stream. The bit frequency analysis computes bit frequencies for bit segments within the digital signal stream. These bit frequencies are then summed in an array to form a bit frequency histogram. Second, a bit phase analysis is applied to the digital signal stream. The bit phase analysis computes bit phases for bit segments within the digital signal stream. These bit phases are then summed in an array to form a bit phase histogram. Spikes within the bit frequency and bit phase histograms can be used to determine whether the received signal stream includes FSK or PSK signals. An enhanced bit phase analysis can also used, if needed.
    • 本文公开了用于从接收信号流中的频移键(FSK)调制信号中鉴别相移键(PSK)调制信号的方法和系统。 首先,将位频分析应用于表示接收信号流的数字信号流。 位频分析计算数字信号流中位段的位频率。 然后将这些比特频率在阵列中相加以形成比特频率直方图。 其次,对数字信号流进行位相位分析。 位相位分析计算数字信号流中位段的位相位。 然后将这些位相位在数组中相加以形成位相位直方图。 位频和位相位直方图内的尖峰可用于确定接收信号流是否包含FSK或PSK信号。 如果需要,还可以使用增强型位相位分析。
    • 6. 发明申请
    • Methods and systems to discriminate betwen PSK and FSK signals
    • 鉴别PSK和FSK信号之间的方法和系统
    • US20100316168A1
    • 2010-12-16
    • US12456075
    • 2009-06-11
    • Stephen T. HaMichael L. MahaffeyFrank A. Boyle
    • Stephen T. HaMichael L. MahaffeyFrank A. Boyle
    • H03D3/00H03D1/00
    • H04L27/0012H04L27/10H04L27/18
    • Methods and systems are disclosed herein for discriminating phase-shift-key (PSK) modulated signals from frequency-shift-key (FSK) modulated signals in received signal streams. First, a bit frequency analysis is applied to a digital signal stream representing the received signal stream. The bit frequency analysis computes bit frequencies for bit segments within the digital signal stream. These bit frequencies are then summed in an array to form a bit frequency histogram. Second, a bit phase analysis is applied to the digital signal stream. The bit phase analysis computes bit phases for bit segments within the digital signal stream. These bit phases are then summed in an array to form a bit phase histogram. Spikes within the bit frequency and bit phase histograms can be used to determine whether the received signal stream includes FSK or PSK signals. An enhanced bit phase analysis can also used, if needed.
    • 本文公开了用于从接收信号流中的频移键(FSK)调制信号中鉴别相移键(PSK)调制信号的方法和系统。 首先,将位频分析应用于表示接收信号流的数字信号流。 位频分析计算数字信号流中位段的位频率。 然后将这些位频率在阵列中相加以形成位频率直方图。 其次,对数字信号流进行位相位分析。 位相位分析计算数字信号流中位段的位相位。 然后将这些位相位在数组中相加以形成位相位直方图。 位频和位相位直方图内的尖峰可用于确定接收信号流是否包含FSK或PSK信号。 如果需要,还可以使用增强型位相位分析。
    • 7. 发明授权
    • Transducer to generate phase-encoded wavefields
    • 传感器产生相位编码波场
    • US5557583A
    • 1996-09-17
    • US300643
    • 1994-09-02
    • Stephen T. HaNorman S. Neidell
    • Stephen T. HaNorman S. Neidell
    • G01S1/76G10K15/02G01S15/00
    • G10K15/02G01S1/76
    • A transducer capable of generating a phase-encoded wavefield is described. The encoded phase is related to the angular co-ordinates of direction of transmission. By decoding the phase values of the received wavefield, a direction can be obtained. Therefore, in navigation applications this transmitter gives additional location information not available from a single received signal using traditional methods such as "range-range" and "hyperbolic" systems. In its simplest configuration, the new transducer comprises two transducers which can be individually controlled. In more complex constructions use of more than two transducers increases the controllability of the desired phase characteristics of the resulting wavefield.It has also been discovered that by using two different phase-encoded wavefields, direction finding of small reflectors can not only be accomplished, but small reflectors can be distinguished from large plane reflectors or else dispersive properties of the propagation medium can be characterized. The first wavefield takes the form of monotonic phase increments with direction as for example would be produced by the present invention, while the second wavefield simply reverses the sense of phase increments of the first. The second wavefield is easily obtained from a source that generates the first either by reprogramming the electronic driving signals for transducers or mechanically interchanging the components of the transducers.
    • 描述了能够产生相位编码波场的换能器。 编码的相位与传播方向的角坐标有关。 通过对接收的波场的相位值进行解码,可以获得方向。 因此,在导航应用中,该发射器使用诸如“范围范围”和“双曲线”系统的传统方法给出了从单个接收信号不可用的附加位置信息。 在其最简单的结构中,新的换能器包括可独立控制的两个换能器。 在更复杂的结构中,使用两个以上的换能器增加了所得到的波场的期望相位特性的可控性。 也已经发现,通过使用两个不同的相位编码波场,不仅可以实现小反射器的方向发现,而且可以将小反射器与大平面反射器区分开,或者可以表征传播介质的色散特性。 第一波场采取单调相位增量的形式,其方向例如将由本发明产生,而第二波场简单地逆转第一波场的相位增量感。 通过重新编程用于换能器的电子驱动信号或机械地交换换能器的部件来产生第一个的第二波场容易地获得。