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    • 2. 发明申请
    • SIGNAL PROCESSING APPARATUS AND IMAGING APPARATUS
    • 信号处理装置和成像装置
    • US20110205385A1
    • 2011-08-25
    • US12913903
    • 2010-10-28
    • Tsuyoshi MATSUMOTOMitsuhiro OKAZAKI
    • Tsuyoshi MATSUMOTOMitsuhiro OKAZAKI
    • H04B15/00H04N5/04
    • G10L21/0208H03G3/32H03G9/005
    • A signal processing apparatus includes a signal transforming unit transforming a first sound signal obtained by dividing a sound signal represented by a time function and by the predetermined time width into a second sound signal represented by a frequency function; a calculating unit determining a third sound signal which has a reduced influence of the operation sound by using the second sound signal and a sound signal representing the operation sound; a correcting unit performing a correction, by setting a sound signal representing the target sound as a reference signal, on the third sound signal based on the reference signal; and a signal inverse transforming unit inverse-transforming a sound signal on which the correction is performed from the sound signal represented by the frequency function into the sound signal represented by the time function.
    • 信号处理装置包括信号变换单元,将通过将由时间函数表示的声音信号除以预定时间宽度而获得的第一声音信号变换为由频率函数表示的第二声音信号; 计算单元,通过使用第二声音信号和表示操作声音的声音信号来确定具有减小的操作声音的影响的第三声音信号; 基于所述参考信号,通过将表示所述目标声音的声音信号作为参考信号对所述第三声音信号进行校正来执行校正; 以及信号逆变换单元,其将从由频率函数表示的声音信号执行校正的声音信号逆变换为由时间函数表示的声音信号。
    • 3. 发明申请
    • Sound recording device, imaging device, photographing device, optical device, and program
    • 录音装置,成像装置,拍摄装置,光学装置和程序
    • US20110234848A1
    • 2011-09-29
    • US12913907
    • 2010-10-28
    • Tsuyoshi MATSUMOTOMitsuhiro OKAZAKI
    • Tsuyoshi MATSUMOTOMitsuhiro OKAZAKI
    • H04N5/225G06F17/00
    • H04N5/2328H04N5/23254
    • A sound recording device includes an input unit, a timing detection unit, a section setting unit that sets a first section including a section in which an operation unit operates in a sound signal, a reference signal determination unit that determines, as a first reference signal, the sound signal corresponding to a second section following the first section, a signal detection unit that detects, as a second reference signal, a sound signal with the highest correlation with the first reference signal, an interpolation signal detection unit that detects, as an interpolation signal, a sound signal that follows the second reference signal detected by the signal detection unit in the sound signal and has the same time length as the first section, a signal replacement unit that replaces the sound signal in the first section with the interpolation signal, and a recording unit that records the sound signal replaced by the signal replacement unit.
    • 声音记录装置包括输入单元,定时检测单元,设置包括操作单元在声音信号中进行操作的区间的第一区间的区间设定单元,将基准信号决定单元确定为第一基准信号 所述声音信号对应于在所述第一部分之后的第二部分,信号检测单元,其检测与所述第一参考信号具有最高相关性的声音信号作为第二参考信号;插值信号检测单元, 插补信号,跟随由信号检测单元在声音信号中检测到的第二参考信号的声音信号,并且具有与第一部分相同的时间长度;信号替换单元,用第一部分替换第一部分中的声音信号, 以及记录单元,其记录由信号更换单元替换的声音信号。
    • 5. 发明申请
    • NOISE REDUCTION PROCESSING APPARATUS, IMAGING APPARATUS, AND NOISE REDUCTION PROCESSING PROGRAM
    • 噪声减少处理装置,成像装置和噪声减少处理程序
    • US20120300100A1
    • 2012-11-29
    • US13475493
    • 2012-05-18
    • Mitsuhiro OKAZAKITakao TAKIZAWA
    • Mitsuhiro OKAZAKITakao TAKIZAWA
    • H04N5/225H04B15/00
    • H04N5/23212H04N5/23258H04R1/028H04R3/00H04R2499/11
    • A noise reduction processing apparatus includes a timing signal detection unit that detects an operation timing signal indicating a timing when an operation unit is operated, an audio signal acquisition unit that acquires an audio signal, and on the basis of the operation timing signal, a noise reduction processing unit that calculates first frequency spectra of an audio signal acquired during a time period which has high possibility that noise caused by an operation of the operation unit is generated and second frequency spectra of an audio signal acquired during a time period which has high possibility that the noise is not generated, and calculates a noise reduction audio signal obtained by performing noise reduction to the audio signal on the basis of frequency spectra in which at least a part of the calculated first frequency spectra are replaced with corresponding portions of the calculated second frequency spectra.
    • 噪声降低处理装置包括定时信号检测单元,其检测指示操作单元操作的定时的操作定时信号,获取音频信号的音频信号获取单元,并且基于操作定时信号,噪声 还原处理单元,其计算在产生由操作单元的操作引起的噪声的可能性高的时间段期间获取的音频信号的第一频谱,以及在具有高可能性的时间段期间获取的音频信号的第二频谱 不产生噪声,并且通过基于所计算的第一频谱的至少一部分被所计算的第二频谱的相应部分替换的频谱来计算通过对音频信号执行噪声降低而获得的降噪音频信号 频谱。
    • 6. 发明申请
    • IMAGING APPARATUS, SIGNAL PROCESSING APPARATUS, AND PROGRAM
    • 成像设备,信号处理设备和程序
    • US20110254979A1
    • 2011-10-20
    • US13078097
    • 2011-04-01
    • Mitsuhiro OKAZAKI
    • Mitsuhiro OKAZAKI
    • H04N5/76
    • H04N5/77H04N5/23258H04N5/23287H04N9/8211
    • An imaging apparatus includes a microphone that converts a sound signal into an electrical signal, a detector that detects at least one of a sensor signal output from an operation sensor detecting an operation of an imaging unit that takes an optical image obtained by an optical unit and a control signal output from an operation unit that controls the operation of the imaging unit, a determination unit that determines a state of operation of the imaging unit based on at least one of the sensor signal and the control signal, a memory unit that stores a first electrical signal output from the microphone as a noise signal when a signal ratio of the first electrical signal and a second electrical signal is equal to or greater than a predetermined threshold value, and a noise reduction unit that reduces a noise of the electrical signal.
    • 一种成像装置包括将声音信号转换成电信号的麦克风,检测从检测摄像单元的操作的操作传感器输出的传感器信号中的至少一个,所述摄像单元获取由光学单元获得的光学图像, 从控制摄像单元的动作的操作单元输出的控制信号,基于传感器信号和控制信号中的至少一个决定摄像单元的动作状态的判定单元,存储单元 当第一电信号和第二电信号的信号比等于或大于预定阈值时,从麦克风输出的第一电信号作为噪声信号;以及噪声降低单元,其降低电信号的噪声。
    • 8. 发明申请
    • Image Pickup Apparatus
    • 图像拾取装置
    • US20110096206A1
    • 2011-04-28
    • US12823456
    • 2010-06-25
    • Mitsuhiro OKAZAKI
    • Mitsuhiro OKAZAKI
    • H04N5/217
    • H04R3/005H04R2410/05
    • An image pickup apparatus includes: a first sound-collection unit that detects an ambient sound and outputs first sound information; a second sound-collection unit other than the first sound-collection unit that detects the sound and outputs second sound information; and a signal processing unit that generates a sound signal corresponding to the sound by eliminating a common noise signal included in the first sound information and the second sound information based on the first sound information and the second sound information.
    • 一种图像拾取装置包括:第一声音收集单元,其检测环境声音并输出第一声音信息; 除了第一声音收集单元之外的第二声音收集单元,其检测声音并输出第二声音信息; 以及信号处理单元,其通过基于第一声音信息和第二声音信息消除包括在第一声音信息中的公共噪声信号和第二声音信息来生成与声音相对应的声音信号。