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    • 2. 发明授权
    • Speaker identification system and method
    • 扬声器识别系统和方法
    • US5930748A
    • 1999-07-27
    • US893755
    • 1997-07-11
    • John Eric KleiderKhaled Assaleh
    • John Eric KleiderKhaled Assaleh
    • G10L15/06G10L17/00G10L3/02
    • G10L15/075G10L17/04
    • A speaker identification system (10) employs a supervised training process (100) that uses row action projection (RAP) to generate speaker model data for a set of speakers. The training process employing RAP uses less memory and processing resources by operating on a single row of a matrix at a time. Memory requirements are linearly proportional to number of speakers for storing each speakers information. A speaker is identified from the set of speakers by sampling the speaker's speech (202), deriving cepstral coefficients (208), and performing a polynomial expansion (212) on cepstral coefficients. The identified speaker (228) is selected using the product of the speaker model data (213) and the polynomial expanded coefficients from the speech sample.
    • 扬声器识别系统(10)采用使用行动投影(RAP)来产生一组扬声器的扬声器模型数据的监督训练过程(100)。 使用RAP的培训过程一次通过在矩阵的单行上运行来减少存储器和处理资源。 存储器要求与用于存储每个扬声器信息的扬声器数成正比。 通过对扬声器的语音(202)进行采样,导出倒谱系数(208)和对倒谱系数执行多项式展开(212),从该组扬声器识别扬声器。 使用扬声器模型数据(213)和来自语音样本的多项式展开系数的乘积来选择所识别的扬声器(228)。
    • 4. 发明授权
    • Method and apparatus for performing targeted interference suppression
    • 用于执行目标干扰抑制的方法和装置
    • US6131013A
    • 2000-10-10
    • US016030
    • 1998-01-30
    • Chad Scott BergstromJeffrey Scott ChuprunJohn Eric Kleider
    • Chad Scott BergstromJeffrey Scott ChuprunJohn Eric Kleider
    • H04B1/12H04L1/00H04L1/20H04L27/00H04Q7/20
    • H04B1/123H04L1/0001H04L1/20H04L27/0012H04L1/0026
    • The invention relates to a communication system (300) having a receiver (304) that is capable of performing targeted interference suppression. An interference classifier (314) within the receiver (304) analyzes a signal received from a channel (306) and identifies and classifies interference components within the signal. An interference suppressor (316) then suppresses the interference components in the signal based on interference type. In one embodiment, the interference suppressor (316) includes a plurality of interference suppression modules that are each optimal for suppressing certain interference types. The interference suppressor (316) selects one of the interference suppression modules based on the type of interference present in the received signal. In another embodiment, a hybrid interference mitigation system (10) is provided by combining targeted interference suppression, frequency hopping adaptation, and processing gain adaptation.
    • 本发明涉及具有能够执行目标干扰抑制的接收机(304)的通信系统(300)。 接收器(304)内的干扰分类器(314)分析从信道(306)接收的信号,并识别和分类信号内的干扰分量。 干扰抑制器(316)然后基于干扰类型抑制信号中的干扰分量。 在一个实施例中,干扰抑制器(316)包括多个干扰抑制模块,每个干扰抑制模块最适合于抑制某些干扰类型。 干扰抑制器(316)基于接收信号中存在的干扰类型来选择一个干扰抑制模块。 在另一个实施例中,通过组合目标干扰抑制,跳频自适应和处理增益适配来提供混合干扰减轻系统(10)。
    • 5. 发明授权
    • Method and apparatus for adaptive rate communication system
    • 自适应速率通信系统的方法和装置
    • US5940439A
    • 1999-08-17
    • US806783
    • 1997-02-26
    • John Eric KleiderClifford Allan WoodWilliam Michael Campbell
    • John Eric KleiderClifford Allan WoodWilliam Michael Campbell
    • H04L1/00H04B17/00H04B3/46H04Q1/20
    • H04L1/0071H04L1/0003H04L1/0009H04L1/0014H04L1/0026H04L1/0038
    • A system is disclosed for an adaptive rate voice system to provide improvements in coded operation over changing communication channel (50) conditions. This adaptive rate system efficiently determines optimal voice/channel coding rates , coding strategies and modulation/demodulation for optimum voice quality and intelligibility. A system state estimator (100), channel status estimator (110) and channel status monitor (120) provides feedback in the system to optimize the communication channel. The system maintains a continuous link despite changing channel conditions and minimizes delays through the system. Even though simple in design, it provides relatively low complexity and powerful channel coding operation. Operating conditions are thus extended for CDMA and portable communication systems. Voice intelligibility is preserved in extremely noisy or even hostile channel conditions.
    • 公开了一种用于自适应速率语音系统的系统,以在改变通信信道(50)条件下提供编码操作的改进。 该自适应速率系统有效地确定了最佳语音/信道编码率,编码策略和调制/解调,以获得最佳语音质量和可理解性。 系统状态估计器(100),信道状态估计器(110)和信道状态监视器(120)在系统中提供反馈以优化通信信道。 尽管改变了通道条件,系统仍保持连续的链接,并通过系统减少了延迟。 即使设计简单,它提供相对较低的复杂性和强大的信道编码操作。 因此,CDMA和便携式通信系统的工作条件得到扩展。 语音清晰度保持在极其嘈杂或甚至敌对的频道条件下。
    • 6. 发明授权
    • Methods and apparatus for generating and communicating wireless signals having pilot signals with variable pilot signal parameters
    • 用于生成和传送具有可变导频信号参数的具有导频信号的无线信号的方法和装置
    • US08098713B2
    • 2012-01-17
    • US12102677
    • 2008-04-14
    • Robert John BaxleyJohn Eric KleiderKelly Anderson
    • Robert John BaxleyJohn Eric KleiderKelly Anderson
    • H04B1/00
    • H04B1/59H04L5/0007H04L5/0048H04L27/2613H04L27/262H04L27/2626H04L27/2662
    • An embodiment for wirelessly communicating a signal includes a transmitter generating and transmitting a wireless signal over a wireless communication channel. The wireless signal includes a guard band, data represented within a plurality of data-bearing subcarriers, and a plurality of pilot signals represented within a plurality of pilot subcarriers. In an embodiment, the plurality of pilot signals have variable pilot signal parameters selected from a group of parameters that includes pilot power and pilot spacing with respect to adjacent pilots. An embodiment further includes a receiver receiving a channel-affected version of the wireless signal, and producing a corrected signal by applying corrections to the received signal based on estimated channel perturbations within the received signal, where the estimated channel perturbations are determined based on the plurality of pilot signals. The receiver also produces an output data symbol from the corrected signal.
    • 用于无线地传送信号的实施例包括通过无线通信信道生成和发送无线信号的发射机。 无线信号包括保护频带,在多个承载载波子载波内表示的数据,以及在多个导频子载波内表示的多个导频信号。 在一个实施例中,多个导频信号具有从包括相对于相邻导频的导频功率和导频间隔的一组参数中选择的可变导频信号参数。 实施例还包括接收无线信号的信道受影响版本的接收机,并且基于接收信号内估计的信道扰动对接收到的信号进行校正来产生校正信号,其中估计的信道扰动基于多个 的导频信号。 接收机还从校正信号产生输出数据符号。