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    • 1. 发明授权
    • Signal processing method, apparatus and program
    • 信号处理方法,装置和程序
    • US08630850B2
    • 2014-01-14
    • US13240353
    • 2011-09-22
    • Kaoru SuzukiTadashi Amada
    • Kaoru SuzukiTadashi Amada
    • G10L21/00
    • H04B3/23H04M9/082
    • In one embodiment, a signal processing method is disclosed. The method can perform filter processing of convoluting a tap coefficient in a first signal sequence to generate a second signal sequence. The method can subtract the second signal sequence from a third signal sequence to generate a fourth signal sequence. The third signal sequence includes an echo signal of the first signal sequence. The method can correct the tap coefficient in accordance with an amount of correction determined using a function. The function includes at least one of a first region and a second region, and has values limited. The first region is included in a negative value region of the fourth signal sequence. The second region is included in a positive value region of the fourth signal sequence.
    • 在一个实施例中,公开了一种信号处理方法。 该方法可以执行在第一信号序列中卷积抽头系数的滤波处理以产生第二信号序列。 该方法可以从第三信号序列中减去第二信号序列以产生第四信号序列。 第三信号序列包括第一信号序列的回波信号。 该方法可以根据使用功能确定的校正量来校正抽头系数。 该功能包括第一区域和第二区域中的至少一个,并且具有限制的值。 第一区域被包括在第四信号序列的负值区域中。 第二区域被包括在第四信号序列的正值区域中。
    • 2. 发明授权
    • Apparatus and method for canceling echo
    • 用于消除回波的装置和方法
    • US08363821B2
    • 2013-01-29
    • US12880772
    • 2010-09-13
    • Kaoru SuzukiKoichi YamamotopTadashi Amada
    • Kaoru SuzukiKoichi YamamotopTadashi Amada
    • H04M9/08
    • H04M9/082
    • According to one embodiment, in response to a first acoustic signal output, a second acoustic signal is input. A filter unit is configured to generate a third acoustic signal by convoluting the first acoustic signal with coefficients. A subtraction unit is configured to generate a fourth acoustic signal by subtracting the third acoustic signal from the second acoustic signal. An estimation unit is configured to decide whether a sound volume of the first acoustic signal is below a predetermined threshold, and to set a sound volume of the second acoustic signal as a non-echo sound level when the sound volume of the first acoustic signal is below the predetermined threshold. A determination unit is configured to determine a step size to correct the coefficients using the non-echo sound level. A correction unit is configured to correct the coefficients using the step size.
    • 根据一个实施例,响应于第一声信号输出,输入第二声信号。 滤波器单元被配置为通过用系数卷积第一声信号来产生第三声信号。 减法单元被配置为通过从第二声信号中减去第三声信号来产生第四声信号。 估计单元被配置为确定第一声信号的音量是否低于预定阈值,并且当第一声信号的音量是第一声信号时,将第二声信号的音量设置为非回波声级 低于预定阈值。 确定单元被配置为使用非回波声级来确定步长以校正系数。 校正单元被配置为使用步长校正系数。
    • 3. 发明申请
    • SIGNAL PROCESSING METHOD, APPARATUS AND PROGRAM
    • 信号处理方法,装置和程序
    • US20120072210A1
    • 2012-03-22
    • US13240353
    • 2011-09-22
    • Kaoru SuzukiTadashi Amada
    • Kaoru SuzukiTadashi Amada
    • G10L21/02
    • H04B3/23H04M9/082
    • In one embodiment, a signal processing method is disclosed. The method can perform filter processing of convoluting a tap coefficient in a first signal sequence to generate a second signal sequence. The method can subtract the second signal sequence from a third signal sequence to generate a fourth signal sequence. The third signal sequence includes an echo signal of the first signal sequence. The method can correct the tap coefficient in accordance with an amount of correction determined using a function. The function includes at least one of a first region and a second region, and has values limited. The first region is included in a negative value region of the fourth signal sequence. The second region is included in a positive value region of the fourth signal sequence.
    • 在一个实施例中,公开了一种信号处理方法。 该方法可以执行在第一信号序列中卷积抽头系数的滤波处理以产生第二信号序列。 该方法可以从第三信号序列中减去第二信号序列以产生第四信号序列。 第三信号序列包括第一信号序列的回波信号。 该方法可以根据使用功能确定的校正量来校正抽头系数。 该功能包括第一区域和第二区域中的至少一个,并且具有限制的值。 第一区域被包括在第四信号序列的负值区域中。 第二区域被包括在第四信号序列的正值区域中。
    • 4. 发明申请
    • APPARATUS AND METHOD FOR CANCELING ECHO
    • 装置和方法取消ECHO
    • US20110243318A1
    • 2011-10-06
    • US12880772
    • 2010-09-13
    • Kaoru SuzukiKoichi YamamotopTadashi Amada
    • Kaoru SuzukiKoichi YamamotopTadashi Amada
    • H04M9/08
    • H04M9/082
    • According to one embodiment, in response to a first acoustic signal output, a second acoustic signal is input. A filter unit is configured to generate a third acoustic signal by convoluting the first acoustic signal with coefficients. A subtraction unit is configured to generate a fourth acoustic signal by subtracting the third acoustic signal from the second acoustic signal. An estimation unit is configured to decide whether a sound volume of the first acoustic signal is below a predetermined threshold, and to set a sound volume of the second acoustic signal as a non-echo sound level when the sound volume of the first acoustic signal is below the predetermined threshold. A determination unit is configured to determine a step size to correct the coefficients using the non-echo sound level. A correction unit is configured to correct the coefficients using the step size.
    • 根据一个实施例,响应于第一声信号输出,输入第二声信号。 滤波器单元被配置为通过用系数卷积第一声信号来产生第三声信号。 减法单元被配置为通过从第二声信号中减去第三声信号来产生第四声信号。 估计单元被配置为确定第一声信号的音量是否低于预定阈值,并且当第一声信号的音量是第一声信号时,将第二声信号的音量设置为非回波声级 低于预定阈值。 确定单元被配置为使用非回波声级来确定步长以校正系数。 校正单元被配置为使用步长校正系数。
    • 6. 发明申请
    • Image Forming Apparatus
    • 图像形成装置
    • US20130202323A1
    • 2013-08-08
    • US13760401
    • 2013-02-06
    • Kenji TakeuchiKei IshidaKaoru SuzukiYuki Fukusada
    • Kenji TakeuchiKei IshidaKaoru SuzukiYuki Fukusada
    • G03G15/20
    • G03G15/2039G03G15/205G03G2215/2035
    • An image forming apparatus includes: a fixing device having a heating member, a heat source, a rotating member, and a temperature sensor; and a control device configured to control the heat source, wherein, in a case of a low temperature state where the temperature of the heating member is lower than a predetermined temperature, the control device to control the heat source such that the temperature of the heating member rises with a gradient equal to or greater than a predetermined value, and wherein, in a case of a high temperature state where the temperature of the heating member at the print-instruction receiving time is equal to or higher than the predetermined temperature, the control device to control the heat source such that the temperature of the heating member rises with a gradient smaller than that in the normal mode.
    • 图像形成装置包括:具有加热构件,热源,旋转构件和温度传感器的定影装置; 以及控制装置,其被配置为控制所述热源,其中,在所述加热构件的温度低于预定温度的低温状态的情况下,所述控制装置控制所述热源,使得所述加热温度 构件以等于或大于预定值的梯度升高,并且其中,在打印指令接收时间处的加热构件的温度等于或高于预定温度的高温状态的情况下, 控制装置来控制热源,使得加热构件的温度以比正常模式小的梯度上升。