公开(公告)号：US09311957B2

公开(公告)日：2016-04-12

申请号：US13755225

申请日：2013-01-31

申请人： Bong Joo Kim ,  Seung Bin You ,  Myung-Jin Lee ,  Sung-No Lee ,  Yong Hee Lee ,  Moo Yeol Choi

发明人： Bong Joo Kim ,  Seung Bin You ,  Myung-Jin Lee ,  Sung-No Lee ,  Yong Hee Lee ,  Moo Yeol Choi

IPC分类号： G06F17/00 ,  G11B20/10 ,  H04N5/04 ,  H04N5/60

CPC分类号： G11B20/10037 ,  H04N5/04 ,  H04N5/607

摘要： A multi-channel audio signal converting device using a time-varying digital filter, an electronic system including the same, and a method of converting an audio signal using the time-varying digital filter are provided. The multi-channel audio signal converting device includes a first signal channel and a second signal channel configured to perform analog-to-digital conversion or digital-to-analog conversion using a first clock signal; and a first time-varying filter configured to synchronize a digital audio signal synchronized with a second clock signal different from the first clock signal with the first clock signal and to input the digital audio signal to the second signal channel when digital-to-analog conversion is performed or to synchronize an output signal of the second signal channel with the second clock signal when analog-to-digital conversion is performed.

摘要翻译： 提供了使用时变数字滤波器的多声道音频信号转换装置，包括该多声道数字滤波器的电子系统以及使用时变数字滤波器来转换音频信号的方法。 多声道音频信号转换装置包括第一信号通道和第二信号通道，其被配置为使用第一时钟信号执行模数转换或数模转换; 以及第一时变滤波器，被配置为使与第一时钟信号不同于第一时钟信号的第二时钟信号同步的数字音频信号与第一时钟信号同步，并且当数模转换时将数字音频信号输入到第二信号通道 或者当执行模数转换时，使第二信号通道的输出信号与第二时钟信号同步。

公开(公告)号：US20100117723A1

公开(公告)日：2010-05-13

申请号：US12610605

申请日：2009-11-02

申请人： Moo-Yeol CHOI

发明人： Moo-Yeol CHOI

IPC分类号： H03K5/00

CPC分类号： H03K3/0231 ,  H03M3/354 ,  H03M3/43 ,  H03M3/454

摘要： An active filter includes a first filter and a second filter. The first filter receives an input signal, and generates a first output signal by filtering the input signal. The second filter receives the first output signal during a time period adjusted based on a variation of a time constant of the first filter, and generates a second output signal by filtering the first output signal received during the time period. Therefore, a variation of a time constant is compensated by using post integration time control.

摘要翻译： 有源滤波器包括第一滤波器和第二滤波器。 第一滤波器接收输入信号，并通过滤波输入信号产生第一输出信号。 第二滤波器在基于第一滤波器的时间常数的变化调整的时间段期间接收第一输出信号，并且通过对在该时间段期间接收的第一输出信号进行滤波来产生第二输出信号。 因此，通过使用后积分时间控制来补偿时间常数的变化。

公开(公告)号：US20130194497A1

公开(公告)日：2013-08-01

申请号：US13755225

申请日：2013-01-31

申请人： Bong Joo Kim ,  Seung Bin You ,  Myung-Jin Lee ,  Sung-No Lee ,  Yong Hee Lee ,  Moo Yeol Choi

发明人： Bong Joo Kim ,  Seung Bin You ,  Myung-Jin Lee ,  Sung-No Lee ,  Yong Hee Lee ,  Moo Yeol Choi

IPC分类号： H04N5/04

CPC分类号： G11B20/10037 ,  H04N5/04 ,  H04N5/607

摘要： A multi-channel audio signal converting device using a time-varying digital filter, an electronic system including the same, and a method of converting an audio signal using the time-varying digital filter are provided. The multi-channel audio signal converting device includes a first signal channel and a second signal channel configured to perform analog-to-digital conversion or digital-to-analog conversion using a first clock signal; and a first time-varying filter configured to synchronize a digital audio signal synchronized with a second clock signal different from the first clock signal with the first clock signal and to input the digital audio signal to the second signal channel when digital-to-analog conversion is performed or to synchronize an output signal of the second signal channel with the second clock signal when analog-to-digital conversion is performed.

摘要翻译： 提供了使用时变数字滤波器的多声道音频信号转换装置，包括该多声道数字滤波器的电子系统以及使用时变数字滤波器来转换音频信号的方法。 多声道音频信号转换装置包括第一信号通道和第二信号通道，其被配置为使用第一时钟信号执行模数转换或数模转换; 以及第一时变滤波器，被配置为使与第一时钟信号不同于第一时钟信号的第二时钟信号同步的数字音频信号与第一时钟信号同步，并且当数模转换时将数字音频信号输入到第二信号信道 或者当执行模数转换时，使第二信号通道的输出信号与第二时钟信号同步。

公开(公告)号：US08169259B2

公开(公告)日：2012-05-01

申请号：US12610605

申请日：2009-11-02

申请人： Moo-Yeol Choi

发明人： Moo-Yeol Choi

IPC分类号： H03K5/00

CPC分类号： H03K3/0231 ,  H03M3/354 ,  H03M3/43 ,  H03M3/454

摘要： An active filter includes a first filter and a second filter. The first filter receives an input signal, and generates a first output signal by filtering the input signal. The second filter receives the first output signal during a time period adjusted based on a variation of a time constant of the first filter, and generates a second output signal by filtering the first output signal received during the time period. Therefore, a variation of a time constant is compensated by using post integration time control.

摘要翻译： 有源滤波器包括第一滤波器和第二滤波器。 第一滤波器接收输入信号，并通过滤波输入信号产生第一输出信号。 第二滤波器在基于第一滤波器的时间常数的变化调整的时间段期间接收第一输出信号，并且通过对在该时间段期间接收的第一输出信号进行滤波来产生第二输出信号。 因此，通过使用后积分时间控制来补偿时间常数的变化。