专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US07792255B2 Voice communications apparatus 有权
公开(公告)号：US07792255B2
公开(公告)日：2010-09-07
申请号：US11165436
申请日：2005-06-24
申请人： Masashi Takada , Hiromi Aoyagi , Kazuyoshi Akie
发明人： Masashi Takada , Hiromi Aoyagi , Kazuyoshi Akie
IPC分类号： H04M11/00
CPC分类号： H04M7/0069 , H04M1/2535 , H04M1/60 , H04M3/40 , H04M7/006
摘要： Voice communications apparatus intervenes between a telephone set and a broad-band transmission path that has a communication band broader than a voice band limited by the transmitter and receiver characteristics of the telephone set. The voice communications apparatus includes a transmitter frequency characteristic corrector circuit for correcting the frequency characteristic of a signal input from the telephone set, and a receiver frequency characteristic corrector circuit for correcting the frequency characteristic of a signal to be input to the telephone set.

12. 发明申请

US20100184488A1 Sound signal adjuster adjusting the sound volume of a distal end voice signal responsively to proximal background noise 审中-公开
标题翻译：声音信号调节器响应于近端背景噪声调节远端语音信号的音量
公开(公告)号：US20100184488A1
公开(公告)日：2010-07-22
申请号：US12654639
申请日：2009-12-28
申请人： Masashi Takada
发明人： Masashi Takada
IPC分类号： H04M1/00
CPC分类号： H04M9/082 , H04R3/00
摘要： In a sound signal adjuster for use in telephone circuitry including a microphone capturing sound to produce a first sound signal and a loudspeaker, a second sound signal representative of a sound in a vicinity of the loudspeaker is obtained, and transitions are detected in the first and second sound signals to determine whether or not the sound in the vicinity of the loudspeaker is blocked. When the blocking is detected, a difference is calculated between a first frequency characteristic detected in response to the sound captured by the loudspeaker being determined as blocked and a second frequency characteristic detected in response to the sound captured by the loudspeaker not being determined as blocked. The difference calculated is used for suppressing a noise component included in the first sound signal.
摘要翻译：在用于包括麦克风捕获声音以产生第一声音信号和扬声器的电话电路中的声音信号调节器中，获得代表扬声器附近的声音的第二声音信号，并且在第一和第第二声音信号以确定扬声器附近的声音是否被阻挡。当检测到阻塞时，在响应于被确定为阻塞的扬声器捕获的声音检测到的第一频率特性和响应于由扬声器捕获的声音未被确定为阻塞而检测到的第二频率特性之间计算差。计算出的差值用于抑制包含在第一声音信号中的噪声分量。

13. 发明申请

US20100086122A1 Echo canceller and echo cancelling method and program 失效
标题翻译：回波消除器和回波消除方法和程序
公开(公告)号：US20100086122A1
公开(公告)日：2010-04-08
申请号：US12461285
申请日：2009-08-06
申请人： Masashi Takada
发明人： Masashi Takada
IPC分类号： H04M9/08 , H04B3/20
CPC分类号： H04M9/082
摘要： An echo canceler uses an adaptive filter to remove an echo of a far-end input signal from a near-end input signal. Filter coefficients are calculated and updated while the far-end signal is active. While the far-end signal is silent, substitute filter coefficients are similarly calculated to be swapped in as initial values for the filter coefficients when the far-end signal changes from silent to active. The substitute filter coefficients are generated from a simulated far-end signal and a simulated near-end signal obtained by combining corresponding samples in different intervals of the far-end and near-end input signals. To facilitate convergence of the substitute filter coefficients, use of the simulated far-end and near-end signals is disabled when the corresponding samples cancel out.
摘要翻译：回波消除器使用自适应滤波器从远端输入信号中去除远端输入信号的回波。在远端信号有效时，滤波系数被计算和更新。当远端信号无声时，当远端信号从静音变为有效时，替代滤波器系数被类似地计算为交换为滤波器系数的初始值。替代滤波器系数是从模拟的远端信号和通过组合远端和近端输入信号的不同间隔中的对应样本获得的模拟近端信号产生的。为了促进替代滤波器系数的收敛，当相应的样本消除时，禁用使用模拟的远端和近端信号。

14. 发明申请

US20090257579A1 Echo Canceller 失效
标题翻译：回音消除器
公开(公告)号：US20090257579A1
公开(公告)日：2009-10-15
申请号：US12085222
申请日：2006-11-24
申请人： Masashi Takada
发明人： Masashi Takada
IPC分类号： H04M9/08
CPC分类号： H04B3/23 , H04M1/2535
摘要： An echo canceller is capable of reducing echo feeling in a conversation even if a tone signal is input. The echo canceller of this invention judges whether a far-end input signal is a calling control tone signal or not, and if that is the case, resets a coefficient of an adaptive filter. An echo canceller of another aspect judges whether a far-end input signal is a predetermined kind of a tone signal or not, and stops the update of the coefficient of the adaptive filter if the result is affirmative and an amount of echo cancellation is not larger than a threshold value. Further, when the tone signal ends, the echo canceller compares amounts of echo cancellation before and after the end of the tone signal, in accordance with a result of the comparison, restart the update of the coefficient of the adaptive filter after resetting the coefficient of the adaptive filter, or restarts the update of the coefficient of the adaptive filter without resetting the coefficient of the adaptive filter. Moreover, notch filters may be provided to eliminate a tone signal frequency component at input stages of the adaptive filter and the adder for echo cancellation.
摘要翻译：回声消除器即使输入了音调信号也能够减少对话中的回声感。本发明的回波消除器判断远端输入信号是否是呼叫控制音调信号，如果是这样，则复位自适应滤波器的系数。另一方面的回波消除器判断远端输入信号是否是预定种类的音调信号，如果结果是肯定的并且回波消除量不大，则停止更新自适应滤波器的系数超过阈值。此外，当音调信号结束时，回声消除器根据比较结果来比较音调信号结束之前和之后的回波消除量，重新启动自适应滤波器的系数的更新，自适应滤波器，或者重新启动自适应滤波器的系数的更新，而不重置自适应滤波器的系数。此外，可以提供陷波滤波器以消除在自适应滤波器的输入级和用于回波消除的加法器中的音调信号频率分量。

15. 发明授权

US07539613B2 Device for recovering missing frequency components 失效
标题翻译：用于恢复缺失频率分量的设备
公开(公告)号：US07539613B2
公开(公告)日：2009-05-26
申请号：US10545435
申请日：2004-02-10
申请人： Masashi Takada
发明人： Masashi Takada
IPC分类号： G10L19/00 , G10L21/00 , H03G3/00
CPC分类号： G10L21/038
摘要： A band recovering device recovers frequency components lying in a frequency band lost due to band-limitation of a sound signal. The device includes a peak-limiting amplifier for amplifying an input narrow-band signal while preventing the resulting amplified signal from exceeding a maximum amplitude. A peak-limitation detector detects the level of the amplified signal output. An amplification controller increases the amplification factor and/or the amount of amplification of the peak-limiting amplifier in accordance with the level of the amplified signal. A band recovering circuit generates, based on the amplified signal output from the peak-limiting amplifier and input narrow-band signal, a band-recovered signal including the frequency components lying in the missing band.
摘要翻译：频带恢复装置恢复由于声音信号的频带限制而丢失的频带中的频率分量。该装置包括用于放大输入窄带信号同时防止所得到的放大信号超过最大幅度的峰值限制放大器。峰值限制检测器检测放大信号输出的电平。放大控制器根据放大信号的电平增加限幅放大器的放大系数和/或放大量。频带恢复电路基于从峰值限幅放大器和输入窄带信号输出的放大信号产生包括位于丢失频带中的频率分量的带恢复信号。

16. 发明申请

US20150117456A1 INFORMATION PROCESSING SYSTEM 有权
标题翻译：信息处理系统
公开(公告)号：US20150117456A1
公开(公告)日：2015-04-30
申请号：US14383829
申请日：2012-03-09
申请人： Masashi Takada , Yasuyuki Kudo , Takeshi Kato
发明人： Masashi Takada , Yasuyuki Kudo , Takeshi Kato
IPC分类号： H04L12/12 , H04L12/741
CPC分类号： H04L12/12 , H04L45/74 , H04W52/0219 , Y02D70/00
摘要： An information processing system according to the present invention includes a plurality of information processing apparatuses connected by a multihop network, and each of the information processing apparatuses includes a first communication unit configured to transmit and receive a first packet including information about a destination address and a second communication unit configured to communicate at a frequency higher than that of the first communication unit and transmit and receive a second packet including a payload, and in each of the information processing apparatuses, when the first communication unit receives the first packet, the second communication unit is woken up, so that efficient data transfer can be achieved while the power consumption is saved.
摘要翻译：根据本发明的信息处理系统包括通过多跳网络连接的多个信息处理设备，并且每个信息处理设备包括：第一通信单元，被配置为发送和接收第一分组，其包括关于目的地地址和第二通信单元，被配置为以比第一通信单元更高的频率通信，并发送和接收包括有效载荷的第二分组，并且在每个信息处理设备中，当第一通信单元接收到第一分组时，第二通信单元被唤醒，从而在节省功耗的同时实现高效的数据传输。

17. 发明授权

US08166284B2 Information processing device 有权
标题翻译：信息处理装置
公开(公告)号：US08166284B2
公开(公告)日：2012-04-24
申请号：US12420051
申请日：2009-04-07
申请人： Masashi Takada
发明人： Masashi Takada
IPC分类号： G06F9/00 , G06F12/14
CPC分类号： G06F11/3648
摘要： An information processing device having a function for efficiently debugging a parallel processing program by controlling snoop operation is provided. The information processing device is so configured that the following is implemented: the setting for receiving a snoop request from a central processing unit can be set at a snoop controller that controls snoop operation; and as the result of reception of a snoop request, a debug controller can stop multiple central processing units.
摘要翻译：提供了具有通过控制窥探操作来有效地调试并行处理程序的功能的信息处理装置。信息处理装置被配置为实现以下功能：可以在控制窥探操作的窥探控制器上设置用于从中央处理单元接收窥探请求的设置; 作为接收到窥探请求的结果，调试控制器可以停止多个中央处理单元。

18. 发明授权

US08073132B2 Echo canceler and echo canceling program 有权
标题翻译：回波消除器和回波消除程序
公开(公告)号：US08073132B2
公开(公告)日：2011-12-06
申请号：US12289882
申请日：2008-11-06
申请人： Masashi Takada
发明人： Masashi Takada
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： An echo canceller uses an adaptive filter to remove an echo of an incoming far-end signal from an outgoing near-end signal. Filter coefficients are calculated and updated while the far-end signal is active so as to minimize the residual echo. In addition, the far-end signal and near-end signal are sampled to generate simulated far-end and near-end signals, from which substitute filter coefficients are similarly calculated while the far-end signal is silent. When the far-end signal changes from silent to active, the substitute filter coefficients are swapped in as initial values for the filter coefficients, thereby speeding up subsequent convergence of the filter coefficients without significant added computational cost.
摘要翻译：回波消除器使用自适应滤波器从输出的近端信号中去除进入的远端信号的回波。在远端信号有效时计算和更新滤波器系数，以便使残差回波最小化。此外，对远端信号和近端信号进行采样以产生模拟的远端和近端信号，在远端信号为静音的情况下，类似地计算替代滤波系数。当远端信号从静音变为有效时，替代滤波器系数作为滤波器系数的初始值进行交换，从而加快滤波器系数的后续收敛，而没有显着增加的计算成本。

19. 发明申请

US20110069847A1 Sound collecting device, acoustic communication system, and computer-readable storage medium 有权
标题翻译：声音采集装置，声学通信系统和计算机可读存储介质
公开(公告)号：US20110069847A1
公开(公告)日：2011-03-24
申请号：US12923210
申请日：2010-09-09
申请人： Katsuyuki Takahashi , Masashi Takada
发明人： Katsuyuki Takahashi , Masashi Takada
IPC分类号： H04R3/00
CPC分类号： H04R3/005
摘要： There is provided a sound collecting device, including: an orientation direction forming section that forms an orientation direction of a microphone array; and a control section that, when a characteristic in a frequency band of a synthesized signal obtained by synthesizing the acoustic signals corresponds to a characteristic of an acoustic signal corresponding to a sound other than a target sound, controls the orientation direction forming section such that an orientation direction that is a direction that is different than an orientation direction of the microphone array at a present point in time is formed, and, when the characteristic in the frequency band of the synthesized signal does not correspond to a characteristic of an acoustic signal corresponding to a sound other than the target sound, controls the orientation direction forming section such that the orientation direction of the microphone array is maintained.
摘要翻译：提供了一种声音收集装置，包括：形成麦克风阵列的取向方向的取向方向形成部; 以及控制部，当通过合成声学信号而获得的合成信号的频带中的特性对应于与除了目标声音以外的声音相对应的声音信号的特性时，控制所述取向方向形成部，使得形成与当前时间点上的麦克风阵列的取向方向不同的方向的方向方向，并且当合成信号的频带中的特性与对应的声信号的特性不对应时控制除了目标声音之外的声音，控制朝向方向形成部分，使得维持麦克风阵列的取向方向。

20. 发明申请

US20100184487A1 Sound signal adjustment apparatus and method, and telephone 失效
标题翻译：声音信号调节装置及方法，电话
公开(公告)号：US20100184487A1
公开(公告)日：2010-07-22
申请号：US12654091
申请日：2009-12-10
申请人： Masashi Takada
发明人： Masashi Takada
IPC分类号： H03G3/00 , H04M1/00
CPC分类号： H04M9/082 , H04R3/00
摘要： A telephone with a speaker and a microphone uses the speaker both as an electric-to-acoustic transducer, to reproduce the far end party's voice, and an acoustic-to-electric transducer, to capture external sound in the vicinity of the near end party. From the captured sound signal and the signal picked up by the microphone, a decision unit decides whether or not the external sound is being blocked. When the external sound is blocked, a volume control unit increases the volume of the far end party's voice as reproduced by the speaker. The near end party can accordingly turn up the speaker volume by moving the part of the telephone including the speaker close to the user's ear to block external sound, without having to manipulate any manual controls.
摘要翻译：具有扬声器和麦克风的电话机使用扬声器作为电声换能器，以再现远端派对的声音，以及声 - 电换能器，以捕获近端方附近的外部声音。从捕获的声音信号和由麦克风拾取的信号，判定单元判定外部声音是否被阻挡。当外部声音被阻止时，音量控制单元增加由扬声器再现的远端对方的声音的音量。通过将包括扬声器在内的扬声器的部分移动到用户的耳朵以阻止外部声音，近端方可以相应地转动扬声器音量，而不必操纵任何手动控制。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式