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    • 62. 发明公开
    • 비가청 주파수를 통한 데이터 수신 장치 및 방법
    • 通过非可听频率接收数据的装置和方法
    • KR1020130132344A
    • 2013-12-04
    • KR1020130110481
    • 2013-09-13
    • 삼성에스디에스 주식회사
    • 김이삭임채영신재연오승훈이현섭
    • G10L21/02H04B11/00
    • H04B11/00G10L21/02
    • Disclosed are an apparatus and a method for receiving data through non-audible frequency. The present invention is to transmit data with non-audible frequency range, to obtain data from a voice signal transmitted though the non-audible frequency range, to supply data including content approach information to audio data with the non-audible frequency range. According to the present invention, various services are provided without the active action of a user because data is transmitted by using non-audible sound. Because various kinds of information are transmitted by using non-audible sound, various additional services are provided for the user watching/listening the content. [Reference numerals] (210) Sound receiving unit;(230) Noise analysis unit;(250) Data receiving unit;(270) Demodulation unit
    • 公开了一种通过非可听频率接收数据的装置和方法。 本发明是以非可听频率范围的方式发送数据,从通过非音频频率范围发送的语音信号中获得数据,以将含有内容逼近信息的数据提供给具有非可听频率范围的音频数据。 根据本发明,由于通过使用非可听见的声音来发送数据,所以提供各种服务而没有用户的主动动作。 由于通过使用非可听见的声音来发送各种信息,所以为用户观看/收听内容提供了各种附加服务。 (附图标记)(210)声音接收单元;(230)噪声分析单元;(250)数据接收单元;(270)解调单元
    • 63. 发明公开
    • 음질 향상 장치 및 방법
    • 提高声音质量的装置和方法
    • KR1020130117908A
    • 2013-10-29
    • KR1020120039223
    • 2012-04-16
    • 삼성전자주식회사
    • 이강은김도형이시화
    • G10L21/02G10L15/00
    • H04R3/04H04R2430/03
    • PURPOSE: A sound quality enhancement device and a method thereof are provided to improve an articulation of a sound source by decoding a signal of a high frequency band from a signal of a low frequency band. CONSTITUTION: An envelope detecting unit (502) detects a frequency envelope about a low frequency band of an input signal. A signal decoding unit (503) decodes an input signal of a high frequency band by performing a frequency folding in a frequency section unit according to the frequency envelope. The envelope detecting unit extracts an envelope of an input signal by using energy of each frequency band of the input signal in which the high frequency band is excluded. The envelope detecting unit performs a flattening work about a temporal variation of an envelope by smoothing an envelope slope in an axial direction. [Reference numerals] (501) Sound quality improving device; (502) Envelope detecting unit; (503) Signal decoding unit; (504) Envelope controlling unit
    • 目的:提供一种声音质量增强装置及其方法,以通过从低频带的信号解码高频带的信号来改善声源的发音。 构成:包络检测单元(502)检测关于输入信号的低频带的频率包络。 信号解码单元(503)通过根据频率包络在频率部分单元中进行频率折叠来解码高频带的输入信号。 包络检测单元通过使用排除了高频带的输入信号的每个频带的能量来提取输入信号的包络。 包络检测单元通过平滑轴向的包络斜率来执行关于包络线的时间变化的平坦化工作。 (附图标记)(501)音质改善装置; (502)信封检测单元; (503)信号解码单元; (504)信封控制单元
    • 64. 发明公开
    • 적응적 잡음 처리 장치 및 방법
    • 用于自适应噪声处理的装置和方法
    • KR1020130112287A
    • 2013-10-14
    • KR1020120034546
    • 2012-04-03
    • (주)트란소노
    • 정성일
    • G10L21/02G10L19/02
    • G10L21/0232G10L19/02G10L2021/02087
    • PURPOSE: An adaptive noise processing device and a method thereof are provided to process an adaptive voice distortion and a residual noise in spectral subtraction. CONSTITUTION: A Signal to Noise Ratio (SNR) calculating unit calculates an SNR between a voice signal and an estimated noise. A spectrum flattening calculating unit (315) adaptively determines a spectrum flattening coefficient masking a residual noise in a noise similarity area and a voice similarity area based on a predetermined standard. An adaptive benefit function calculating unit (320) calculates a benefit function with the spectrum flattening coefficient and the SNR as variables. An improved voice output unit (325) multiplies the benefit function by the voice signal to calculate an improved voice. [Reference numerals] (305) Noise estimation unit; (310) SNR calculation unit; (315) Spectrum flattening calculating unit; (320) Adaptive benefit function calculating unit; (325) Improved voice output unit
    • 目的:提供一种自适应噪声处理装置及其方法,用于处理频谱减法中的自适应语音失真和残留噪声。 构成:信噪比(SNR)计算单元计算语音信号和估计噪声之间的SNR。 频谱平坦化计算单元(315)基于预定标准自适应地确定屏蔽噪声相似区域和语音相似区域中的残留噪声的频谱平坦化系数。 自适应有效函数计算单元(320)以频谱平滑系数和SNR作为变量来计算益处函数。 改进的语音输出单元(325)将益处功能乘以语音信号以计算改进的语音。 (附图标记)(305)噪声估计单元; (310)SNR计算单元; (315)频谱平坦化计算单元; (320)自适应效益函数计算单元; (325)改进的语音输出单元
    • 65. 发明公开
    • 반도체 장치 및 음성 통신 장치
    • 半导体器件和语音通信设备
    • KR1020130094246A
    • 2013-08-23
    • KR1020130015719
    • 2013-02-14
    • 르네사스 일렉트로닉스 가부시키가이샤
    • 구마가이미찌나까가와데쯔야
    • G10L21/02
    • G10L21/02G10L21/0208
    • PURPOSE: A semiconductor device and a voice communication device are provided to improve the precision of noise removal by lowering the error rate of a voice signal using a first reference value stored in a first memory unit. CONSTITUTION: A semiconductor device comprises a decoding unit, a judgment unit, a suppression unit (100), and a first memory unit. The decoding unit decodes an encoded input signal. The judgment unit judges whether a voice signal is contained in the input signal. The suppression unit suppresses noise in the decoded input signal based on the judged results. The first memory unit stores a first reference value for prescribing the ratio of the voice signal to the noise as a judgment reference value used for the judgment. [Reference numerals] (10) Voice processing unit; (100) Noise suppression unit; (1001) Determining unit; (1002) Specific noise suppressing unit; (1003) Background noise suppressing unit; (101) Energy calculation unit; (102) Background noise table renewal unit; (103) Background noise table maintenance unit; (104) Background noise judgment standard selecting unit; (105) Background noise judgment standard maintaining unit; (106) Specific noise selecting unit; (107) Specific noise judgment standard maintaining unit; (108) Noise judgment standard selecting unit; (109) Specific noise table maintaining unit; (AA) Correct and control frequency characteristic; (BB) Voice; (CC) Noise; (DD) Judgment results; (EE) Specific noise selecting signal; (FF) N/S control mode signal; (GG) Input signal
    • 目的:提供半导体器件和语音通信设备,以通过使用存储在第一存储器单元中的第一参考值降低语音信号的错误率来提高噪声去除的精度。 构成:半导体器件包括解码单元,判断单元,抑制单元(100)和第一存储单元。 解码单元解码编码的输入信号。 判断单元判断语音信号是否包含在输入信号中。 抑制单元基于判断结果来抑制解码输入信号中的噪声。 第一存储单元将用于规定语音信号与噪声的比率的第一参考值存储为用于判断的判断基准值。 (附图标记)(10)语音处理单元; (100)噪声抑制单元; (1001)确定单位; (1002)特定噪声抑制单元; (1003)背景噪声抑制单元; (101)能量计算单位; (102)背景噪音表更新单元; (103)背景噪音表维护单元; (104)背景噪声判断标准选择单元; (105)背景噪声判断标准保持单元; (106)具体噪声选择单元; (107)具体噪声判断标准维护单位; (108)噪声判断标准选择单元; (109)专用噪声表维护单元; (AA)正确和控制频率特性; (BB)声音; (CC)噪音; (DD)判决结果; (EE)具体噪声选择信号; (FF)N / S控制模式信号; (GG)输入信号
    • 66. 发明公开
    • 음성 존재 확률을 이용한 코드북 기반 음성 향상 방법 및 그 장치
    • 基于CODEBOOK的语音增强方法使用无声概率及其设备
    • KR1020130085732A
    • 2013-07-30
    • KR1020120006751
    • 2012-01-20
    • 세종대학교산학협력단
    • 김무영이명석
    • G10L21/02G10L19/00
    • G10L21/0232G10L19/028G10L19/26G10L21/0308G10L25/84G10L2019/0002
    • PURPOSE: A codebook-based speech enhancement method using a speech presence probability and a device thereof are provided to be robust in a fast-changing noise environment by applying the speech presence probability to a codebook-based speech enhancement algorithm. CONSTITUTION: A voice recognition enhancement device converts an inputted voice signal from a time domain signal into a frequency domain signal (S11). The device calculates a binary estimation model for a speech absence probability (SAP) (S16). The device selects a noise codebook and clean voice codebook of the voice signal (S13,S15). The device calculates the gain of a noise without the presence of a clean voice and the gain of the noise with the presence of a clean voice through the SAP and determines a parameter set (S17). The device removes the noise by using Wiener filtering (S18). [Reference numerals] (AA) Input signal y = x + d; (BB) Input signal spectrum; (CC) Noise code book; (DD) Clean voice code book; (S12) Estimate noise; (S13) Select a noise code vector (IS-D); (S15) Select a voice code vector (IS-D); (S16) SAP modeling; (S17) Estimate a gain (σ_x^2, σ_d^2) and calculate an optimal parameter set
    • 目的:通过将语音存在概率应用于基于码本的语音增强算法,在快速变化的噪声环境中提供了使用语音存在概率的基于码本的语音增强方法及其装置。 构成:语音识别增强装置将输入的语音信号从时域信号转换为频域信号(S11)。 该装置计算无语言概率(SAP)的二进制估计模型(S16)。 设备选择语音信号的噪声码本和清除语音码本(S13,S15)。 该设备通过SAP计算噪声的增益,而不存在干净的语音和噪声的增益,并且确定参数集(S17)。 该设备通过使用维纳滤波来消除噪声(S18)。 (标号)(AA)输入信号y = x + d; (BB)输入信号频谱; (CC)噪声码本; (DD)清洁语音代码簿; (S12)估计噪声; (S13)选择噪声码矢量(IS-D); (S15)选择语音码矢量(IS-D); (S16)SAP建模; (S17)估计增益(σ_x^ 2,σ_d^ 2)并计算最优参数集
    • 67. 发明公开
    • 오디오 신호의 디코딩 방법 및 그에 따른 디코딩 장치
    • 音频信号的解码方法及其解码设备
    • KR1020130079895A
    • 2013-07-11
    • KR1020120000652
    • 2012-01-03
    • 삼성전자주식회사
    • 김현욱이남숙
    • G10L21/02G10L19/00
    • PURPOSE: An audio signal decoding method and a decoding apparatus according to the same are provided to accurately restore an original audio signal by reducing 'a sound quality distortion which can be generated in an up-mixing operation'. CONSTITUTION: A receiving unit (110) receives a down-mixed signal and a spatial parameter. An up-mixing unit (120) includes first to n non-correlator ends (121,122) which are connected in a tree structure, mixes up the down-mixed signal by using the spatial parameter, and generates at least one up-mixing signal. 'At least one non-correlator which is included in at least one of first to (n-1) non-correlator ends' includes 'a first non-correlator which mixes up an inputted signal by using a first non-correlation signal which has a waveform which corresponds to the waveform of the inputted signal'. [Reference numerals] (110) Receiving unit; (121) First decorrelator unit; (122) n-th decorrelator unit
    • 目的:提供一种音频信号解码方法及其解码装置,通过减少“在上混合操作中可产生的声音质量失真”来精确地恢复原始音频信号。 构成:接收单元(110)接收下混合信号和空间参数。 上混合单元(120)包括以树结构连接的第一至第n非相关器端(121,122),通过使用空间参数混合下混合信号,并产生至少一个上混合信号。 “包括在第一至第(n-1)个非相关器结束中的至少一个中的至少一个非相关器包括:通过使用具有第一非相关信号的第一非相关信号混合输入信号的第一非相关器 对应于输入信号波形的波形。 (附图标记)(110)接收单元; (121)第一个去相关器单元; (122)第n去相关器单元
    • 68. 发明授权
    • 능동잡음 제어장치 및 그 방법
    • 用于控制主动噪声的装置及其方法
    • KR101283105B1
    • 2013-07-05
    • KR1020110054871
    • 2011-06-08
    • 부산대학교 산학협력단
    • 김석찬박성진황성수
    • G10L21/02G10K11/16
    • 본 발명에 의하면, 학습신호를 생성하고 상기 생성된 학습신호로부터 미지의 임펄스 응답을 추정하는 학습모듈 및 상기 학습모듈로부터 추정된 임펄스 응답으로부터 잡음신호를 제거하는 잡음제거모듈을 포함하는 잡음제거기; 상기 학습모듈에서 생성된 학습신호를 수신하는 음향변환기; 및 상기 음향변환기에서 송신되는 학습신호와, 잡음원에서 송신되는 잡음신호를 수신하는 음향센서를 포함하는 능동잡음 제어장치를 제공한다.
      본 발명은 학습시간을 최대한 줄이면서 잡음제거 알고리즘이 적용된 ANC 기술을 효과적으로 동작시킬 수 있는 효과가 있다. 또한 본 발명은 짧은 학습시간 동안에 정확한 임펄스 응답을 추정할 수 있으며, 상기 추정된 임펄스 응답을 이용하여 잡음제거 필터가 제대로 동작하는 데 걸리는 시간을 줄일 수 있는 효과가 있다. 또한 본 발명은 학습시간 동안 미리 필터계수(W)를 추정하여 상기 추정된 필터계수를 실제 잡음제거모듈이 동작할 때 이용하게 되므로 필터의 수렴속도가 훨씬 빨라지는 효과가 있다.
    • 69. 发明公开
    • 차량용 음성신호 복원 장치 및 방법
    • 用于恢复汽车的声音信号的装置和方法
    • KR1020130068625A
    • 2013-06-26
    • KR1020110135920
    • 2011-12-15
    • 한국전자통신연구원
    • 이성주
    • G10L21/02
    • G10L21/02G10L19/02G10L19/087
    • PURPOSE: A vehicle voice signal restoration device and a method thereof are provided to improve voice quality of an output signal from vehicle environment by applying a short channel voice quality improvement technology and restoring a low frequency range voice signal distorted by vehicle noise. CONSTITUTION: A phase detection unit(120) extracts phase information from a short range frequency component of an analyzed voice input signal. A harmonic frequency component detection unit(130) marks a harmonic frequency component in the analyzed short range frequency component. A distorted component detection unit(150) detects the distorted harmonic component by using an LPC spectrum extracted from the short range frequency component, the marked harmonic frequency component and frequency component peak marking information. A distorted component restoration unit restores the size of the distorted harmonic component. A voice signal restoration unit restores a time domain voice signal. [Reference numerals] (110) Spectrum analysis unit; (120) Phase detection unit; (130) Harmonic frequency component detection unit; (140) Spectrum information extraction unit; (150) Distorted component detection unit; (160) Distorted component restoration unit; (170) Sound signal restoration unit; (AA) Sound input signal unit
    • 目的:提供一种车辆语音信号恢复装置及其方法,通过应用短信道语音质量改进技术和恢复由车辆噪声失真的低频范围语音信号来改善来自车辆环境的输出信号的语音质量。 构成:相位检测单元(120)从所分析的声音输入信号的短距离频率分量中提取相位信息。 谐波频率分量检测单元(130)标记分析的短程频率分量中的谐波频率分量。 失真分量检测单元(150)通过使用从短距离频率分量提取的LPC频谱,标记的谐波频率分量和频率分量峰值标记信息来检测失真的谐波分量。 失真的元件恢复单元恢复失真的谐波分量的大小。 语音信号恢复单元恢复时域语音信号。 (附图标记)(110)频谱分析单元; (120)相位检测单元; (130)谐波频率分量检测单元; (140)频谱信息提取单元; (150)失真分量检测单元; (160)失真分量恢复单元; (170)声音信号恢复单元; (AA)声音输入信号单元