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    • 1. 发明授权
    • Spelling speech recognition apparatus and method for communications
    • 拼写语音识别装置和通信方法
    • US06304844B1
    • 2001-10-16
    • US09538657
    • 2000-03-30
    • James PanYoon KimJosephine ChangJuinn-Yan Chen
    • James PanYoon KimJosephine ChangJuinn-Yan Chen
    • G10L1502
    • G10L15/187G10L15/02G10L2015/086
    • An accurate speech recognition system capable of rapidly processing greater varieties of words and operable in many different devices, but without the computational power and memory requirements, high power consumption, complex operating system, high costs, and weight of traditional systems. The utilization of individual letter utterances to transmit words allows voice information transfer for both person-to-person and person-to-machine communication for mobile phones, PDAs, and other communication devices. This invention is an apparatus and method for a speech recognition system comprising a microphone, front-end signal processor for generating parametric representations of speech input signals, a pronunciation database, a letter similarity comparator for comparing the parametric representation of the input signals with the parametric representations of letter pronunciations, and generating a sequence of associations between the input speech and the letters in the pronunciation database, a vocabulary database, a word similarity comparator for comparing an aggregated plurality of the letters with the words in the vocabulary database and generating a sequence of associations between them, and a display for displaying the selected letters and words for confirmation.
    • 一种精确的语音识别系统,能够快速处理更多种类的词语,并可在许多不同的设备中运行,但无需计算能力和内存要求,高功耗,复杂的操作系统,高成本和传统系统的重量。 使用单个字母的话语来传输话语,可以为移动电话,PDA和其他通信设备的个人对个人和个人到机器的通信进行语音信息传输。 本发明是一种用于语音识别系统的装置和方法,其包括麦克风,用于产生语音输入信号的参数表示的前端信号处理器,发音数据库,字母相似性比较器,用于将输入信号的参数表示与参数 字母发音的表示,以及在发音数据库中产生输入语音和字母之间的关联序列,词汇数据库,词汇相似性比较器,用于将汇总的多个字母与词汇数据库中的单词进行比较,并产生序列 它们之间的关联,以及用于显示所选择的字母和单词以进行确认的显示。
    • 2. 发明授权
    • Method for designing a noise shaper with a single loop distributed feedback delta-sigma modulator
    • 用单环路分布式反馈Δ-Σ调制器设计噪声整形器的方法
    • US07009540B1
    • 2006-03-07
    • US10905425
    • 2005-01-04
    • Juinn-Yan ChenWei-Gian ChenZuoqin Wang
    • Juinn-Yan ChenWei-Gian ChenZuoqin Wang
    • H03M3/00
    • G06F17/5063
    • A method for designing a noise shaper with a single loop distributed feedback delta-sigma modulator includes following steps: (a) determining a delta-sigma modulator comprising a plurality of parameters according to an order of the noise shaper; (b) deriving a noise transfer function comprising a plurality of coefficients corresponding to the parameters of the delta-sigma modulator according to the delta-sigma modulator; (c) determining a high-pass filter corresponding to the delta-sigma modulator according to a default requirement; (d) solving the coefficients of the noise transfer function according to the high-pass filter; and (e) feeding the solved coefficients in step (d) into the parameters of the delta-sigma modulator for completing the noise shaper.
    • 用于设计具有单环分布式反馈Δ-Σ调制器的噪声整形器的方法包括以下步骤:(a)根据噪声整形器的顺序确定包括多个参数的Δ-Σ调制器; (b)导出噪声传递函数,所述噪声传递函数包括与所述Δ-Σ调制器的所述Δ-Σ调制器的参数对应的多个系数; (c)根据默认要求确定对应于Δ-Σ调制器的高通滤波器; (d)根据高通滤波器求解噪声传递函数的系数; 和(e)将步骤(d)中的求解的系数馈送到用于完成噪声整形器的Δ-Σ调制器的参数。
    • 3. 发明授权
    • Sigma-delta modulated discrete time oscillator
    • Sigma-delta调制离散时间振荡器
    • US06803834B1
    • 2004-10-12
    • US10442921
    • 2003-05-22
    • Juinn-Yan Chen
    • Juinn-Yan Chen
    • H03B2800
    • H03L7/0994
    • A sigma-delta modulated discrete time oscillator. The sigma-delta modulated discrete time oscillator comprises a synchronous counter and a sigma-delta modulator. The sigma-delta modulator operating in a first clock receives a control signal to generate a divider pattern output. The control signal provides a DC value for the frequency of the first clock. The divider pattern comprises a plurality of numbers, values of which are synchronous with the rate of the first clock. The synchronous counter operates in a second clock. In the synchronous counter, the second clock is divided by the divider pattern to generate the first clock. The frequency of the second clock is much higher than the frequency of the first clock.
    • Σ-Δ调制离散时间振荡器。 Σ-Δ调制离散时间振荡器包括同步计数器和Σ-Δ调制器。 在第一时钟中工作的Σ-Δ调制器接收控制信号以产生分频器模式输出。 控制信号为第一时钟的频率提供DC值。 分频器模式包括多个数字,其值与第一时钟的速率同步。 同步计数器工作在第二个时钟。 在同步计数器中,第二个时钟由分频器模式除以产生第一个时钟。 第二个时钟的频率远高于第一个时钟的频率。
    • 7. 发明授权
    • Idle channel tone and periodic noise suppression for sigma-delta modulator using feedback-quantizer
    • 使用反馈量化器对Σ-Δ调制器进行空闲通道音和周期性噪声抑制
    • US06710729B1
    • 2004-03-23
    • US10267843
    • 2002-10-10
    • Juinn-Yan Chen
    • Juinn-Yan Chen
    • H03M300
    • H03M3/334H03M3/33H03M3/43H03M3/454
    • A sigma-delta modulator. The sigma-delta modulator comprises an integrator, a first quantizer, a dither generator and an adding device. An input terminal of the first quantizer and an input terminal of the dither generator are coupled to an output terminal of the integrator. The first quantizer generates a first random signal. The dither generator comprises a second quantizer for generating a second random signal, an input terminal thereof coupling to the output of the integrator; a random sequencer for receiving the first random signal and the second random signal to produce a third random signal output; and an attenuator for attenuating the third random signal to produce a dither signal to output. The dither signal is added to an input terminal of the integrator by the adding device.
    • Σ-Δ调制器。 Σ-Δ调制器包括积分器,第一量化器,抖动发生器和加法器件。 第一量化器的输入端和抖动发生器的输入端耦合到积分器的输出端。 第一量化器产生第一随机信号。 抖动发生器包括用于产生第二随机信号的第二量化器,其耦合到积分器的输出的输入端; 随机定序器,用于接收第一随机信号和第二随机信号以产生第三随机信号输出; 以及用于衰减第三随机信号以产生抖动信号以输出的衰减器。 抖动信号由加法装置加到积分器的输入端。