公开(公告)号：JP2010028462A

公开(公告)日：2010-02-04

申请号：JP2008187551

申请日：2008-07-18

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： MATSUSHITA SHOGO ,  MAEDA KAZUAKI

IPC: H04L12/885 ,  H04L7/00

Abstract: PROBLEM TO BE SOLVED: To provide a noise reduction processing method capable of suppressing noise generated by the difference of the processing speed between the transmitting side and the receiving side in the digital communication system for asynchronously transmitting and receiving streaming data. SOLUTION: The digital signal receiving device includes: a receiver 1 for receiving the streaming data transmitted from the transmitting device; and a digital-analog converter (hereinafter, to be referred to simply as DAC3) for converting the digital signal output from a data compensation part constituted of DSP2 and data compensation part to audio sound. Furthermore, specifically, the data compensation part includes a write pointer for writing the streaming data received from the receiver 1; three types of buffers, r_data_buf21, x_data_buf22, and p_data_buf23 for writing data of the data compensation part; and a read pointer for reading data of the buffer to transmit to the DAC3. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种噪声降低处理方法，能够抑制由数字通信系统中的发送侧和接收侧之间的处理速度之差产生的噪声，用于异步发送和接收流数据。 数字信号接收装置包括：接收机1，用于接收从发送装置发送的流数据; 以及用于将从DSP2和数据补偿部分构成的数据补偿部分输出的数字信号转换成音频声音的数模转换器（以下简称为DAC3）。 此外，具体地，数据补偿部分包括用于写入从接收机1接收的流数据的写指针; 用于写入数据补偿部分的数据的三种类型的缓冲器r_data_buf21，x_data_buf22和p_data_buf23; 以及用于读取缓冲器的数据以发送到DAC3的读指针。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2007126983A

公开(公告)日：2007-05-24

申请号：JP2005318295

申请日：2005-11-01

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： YAMAMOTO TOSHIHIRO ,  MAEDA KAZUAKI

IPC: F04D27/00 ,  F04D29/66 ,  G10K11/178

Abstract: PROBLEM TO BE SOLVED: To provide, with reduced cost, a compact and simply formed drive device in which noise such as wind noise generating from an electric fan is canceled by the electric fan itself. SOLUTION: The noise such as wind noise generating from the electric fan 12 is detected by a microphone 24. Based on the result of detection by the microphone 24, a control circuit 26 generates a noise control signal to cancel the noise 22 and inputs it into a modulation circuit 16. The modulation circuit 16 modulates a drive signal to drive the electric fan 12 by the noise control signal. Therefore, the electric fan 12 rotates while changing the rotating speed according to the noise control signal and functions as so-called a pneumatic loudspeaker. Consequently, the noise 22 such as the wind noise naturally emitted from the electric fan 12 is canceled by the control noise 28 intentionally emitted from the electric fan 12 as the pneumatic loudspeaker. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了降低成本，提供一种紧凑且简单形成的驱动装置，其中由电风扇自身消除诸如从风扇产生的风噪声等噪声。 解决方案：由麦克风24检测来自电风扇12产生的风噪声的噪声。基于麦克风24的检测结果，控制电路26产生噪声控制信号以消除噪声22和 将其输入调制电路16.调制电路16调制驱动信号以通过噪声控制信号驱动电风扇12。 因此，电风扇12根据噪声控制信号而改变转速而旋转，并且起到所谓的气动扬声器的作用。 因此，作为气动扬声器，从电风扇12有意地发出的控制噪声28消除了从电风扇12自然发出的风噪声等噪音22。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006339802A

公开(公告)日：2006-12-14

申请号：JP2005159488

申请日：2005-05-31

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： OKAMOTO RYOSUKE ,  AZUMA HIROSHI ,  MAEDA KAZUAKI

IPC: H04M3/56

Abstract: PROBLEM TO BE SOLVED: To increase the number of participants in a conference without improving the capability of existing servers.
SOLUTION: Servers are divided hierarchically into an upper layer server 2c and lower layer servers 2a, 2b, wherein the server 2a supplies sound signals from terminals 4a through 4d and the server 2b supplies sound signals from terminals 4e through 4g while mixing to the upper layer server 2c. The upper layer server 2c supplies a lower layer mixing sound signal from the lower layer server 2a as an upper layer mixing sound signal to the lower layer server 2b, and supplies a lower layer mixing sound signal from the lower layer server 2b as an upper layer mixing sound signal to the virtual server 2b. The server 2a supplies the mixing signal of an upper layer mixing sound signal from the upper layer server 2c and sound signals from the terminals 4a through 4d excepting its own terminal to the terminals 4a through 4d. It is also true for the server 2b.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：增加会议参与者的数量，而不会提高现有服务器的能力。 解决方案：服务器分层划分为上层服务器2c和下层服务器2a，2b，其中服务器2a从端子4a至4d提供声音信号，并且服务器2b从端子4e至4g提供声音信号，同时混合到 上层服务器2c。 上层服务器2c将作为上层混合声音信号的下层服务器2a的下层混合声音信号提供给下层服务器2b，并且将来自下层服务器2b的下层混合声音信号作为上层 将声音信号混合到虚拟服务器2b。 服务器2a将来自上层服务器2c的上层混合声音信号的混合信号和来自端子4a至4d的声音信号提供给终端4a至4d，除了其本身的终端之外。 对于服务器2b也是如此。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2010041280A

公开(公告)日：2010-02-18

申请号：JP2008200531

申请日：2008-08-04

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： MATSUMOTO YASUSHI ,  MAEDA KAZUAKI

IPC: H04R3/02 ,  H04R3/04

Abstract: PROBLEM TO BE SOLVED: To provide a signal processing device which suppresses an occurrence of an abnormal noise by return noise.
SOLUTION: A signal processing apparatus includes a band division circuit Fd generating a plurality of subband signals by performing a first orthogonal transform to a digital voice input signal, a plurality of AGC amplifying circuits G1-Gn provided corresponding to each of signal groups S1-Sn composed of at least three subband signals whose frequency bands are adjoining with each other, obtaining a signal group level based on a level of the subband signal except the subband signals whose frequency bands are adjoining to other signal groups in each corresponding signal group, determining a gain based on the signal group level, and performing amplifying processing to all of the subband signals within the corresponding signal group based on the gain, and a band synthetic circuit Fc performing an inverse transform of the first orthogonal transform to a signal to which the amplifying processing is performed by each of the AGC amplifying circuits G1-Gn and outputting the digital voice output signal.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过返回噪声抑制异常噪声的发生的信号处理装置。 解决方案：信号处理装置包括通过对数字语音输入信号执行第一正交变换而生成多个子带信号的分频电路Fd，与每个信号组对应设置的多个AGC放大电路G1-Gn S1-Sn由频带彼此相邻的至少三个子带信号组成，除了频带与每个相应信号组中的其它信号组相邻的子带信号之外，基于子带信号的电平获得信号组电平 基于信号组电平确定增益，并且基于增益对相应信号组内的所有子带信号执行放大处理;以及频带合成电路Fc，执行第一正交变换的逆变换到信号 由AGC放大电路G1-Gn中的每一个执行放大处理并输出数字语音输出 ut信号。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2005236737A

公开(公告)日：2005-09-02

申请号：JP2004044219

申请日：2004-02-20

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： KURISU KIYOHIRO ,  MAEDA KAZUAKI ,  YAMAGUCHI SHIZUMA ,  SAEKI TETSUO

IPC: G08B23/00 ,  H04R1/26 ,  H04R3/04 ,  H04R27/00 ,  H04S7/00

CPC classification number: G08B7/062

Abstract: PROBLEM TO BE SOLVED: To provide a simple and inexpensive broadcast system which supports evacuation guidance using sound. SOLUTION: N numbers (N: plural number) of speakers 12 are spaced along a guiding direction 100. The speakers 12 are connected to a wideband sound source system 18 through band pass filters 14 corresponding to them and a common pre-amplifier circuit 16. The wideband sound source system 18 outputs white noise signal as guiding signal. The band pass filters 14 have frequency characteristics different from each other, and specifically, the frequency characteristics is so set that a speaker 12 closer to an evacuation gate emits a guiding sound higher in frequency. Evacuees can reach the evacuation gate by advancing in such direction as the guiding sound becomes higher in frequency. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种简单而廉价的广播系统，其支持使用声音的撤离指导。 扬声器12通过与它们对应的带通滤波器14和共同的前置放大器连接到宽带声源系统18上 宽带声源系统18输出白噪声信号作为引导信号。 带通滤波器14具有彼此不同的频率特性，具体地说，频率特性被设定为使靠近疏散门的扬声器12发射频率更高的引导声。 通过按照引导声音频率变高的方向前进，逃逸者可以到达撤离门。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004085723A

公开(公告)日：2004-03-18

申请号：JP2002243982

申请日：2002-08-23

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： MAEDA KAZUAKI

IPC: G10L19/00 ,  H03M7/38 ,  H03M7/40

Abstract: PROBLEM TO BE SOLVED: To provide a compression method and a compression apparatus which can enhance the compression rate of audio data for which real time characteristics are required.
SOLUTION: An input signal a passing an input section 10 and an amplifier 15 is inputted to a compressor 100. The input signal a is subjected to ADPCM (Adaptive Differential Pulse Code Modulation) by an ADPCM encoder 20 and is made into a first compression signal b which is then subjected to entropy encoding by an entropy encoder 30 and is made into a second compression signal c. The second compression signal c is delivered through a transmission buffer 32 and a transmission section 34 to a transmission line 35 and is inputted through a reception section 36 and a reception buffer 38 to an expander 200. The second compression signal c inputted to an entropy encoder 40 and is subjected to entropy decoding and is made into a first expansion signal d which is then subjected to eADPCM decoding by an ADPCM decoder and is outputted as a second expansion signal e. The second expansion signal e is sounded loud through an amplifier 60 and an output section 70.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2009290529A

公开(公告)日：2009-12-10

申请号：JP2008140700

申请日：2008-05-29

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： MATSUSHITA SHOGO ,  MAEDA KAZUAKI

IPC: H04L29/08 ,  H04L7/00 ,  H04L13/08

Abstract: PROBLEM TO BE SOLVED: To provide a streaming data compensation method in asynchronous packet communication, the method dealing with both a packet lack and excessive packets, so that it is not necessary to perform much compensation on one packet. SOLUTION: A receiver includes a receiver 1 for receiving packetized data transmitted from a transmitter, a packet compensator constituted of a DSP 2, and a digital-to-analog converter DAC 3 for converting a digital signal outputted from the packet compensator into audio. More specifically, the packet compensator includes a write pointer WP for writing in order packetized data received from the receiver 1, three kinds of buffers r_data_buf 21, x_data_buf 22 and p_data_buf 23, and a read pointer RP for reading data in the buffers and transmitting the data to the DAC 3. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了在异步分组通信中提供流数据补偿方法，该方法处理分组缺少和过多的分组，使得不需要对一个分组执行很多的补偿。 解决方案：接收机包括用于接收从发射机发送的分组数据的接收机1，由DSP 2构成的分组补偿器和用于将从分组补偿器输出的数字信号转换成数字 - 模拟转换器DAC 3的数模转换器DAC 3 音频。 更具体地，分组补偿器包括用于按顺序从接收机1接收的分组数据写入的写指针WP，三种缓冲器r_data_buf21，x_data_buf22和p_data_buf23以及用于读缓冲器中的数据的读指针RP， 数据传递给DAC 3.版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2006140952A

公开(公告)日：2006-06-01

申请号：JP2004330983

申请日：2004-11-15

Applicant: Nobuyuki Matsui ,  Sutetsupu One:Kk ,  Toa Corp ,  ティーオーエー株式会社 ,  伸之 松井 ,  株式会社ステップワン

Inventor： MATSUI NOBUYUKI ,  ISOGAWA TEIJIRO ,  SODO HIROMI ,  MAEDA KAZUAKI ,  OGAWA YUZO

IPC: H04N1/46 ,  G06N3/00 ,  G06T1/00 ,  H04N1/60

Abstract: PROBLEM TO BE SOLVED: To obtain a processing result as expected corresponding to the luminance of color image data, in an image processor which processes the color image data by a neutral network.
SOLUTION: The color image data Do are inputted to the network part 16 of the neutral network 14 of a BP-method learning type after normalized to values of 0 to 1 by a normalization part 12. The network part 16 applies luminance conversion processing to the color image data Do on the basis of parameters Wnm, Wpn, θn and θp set from a parameter setting part 18. At this time, the color image data Do are processed as a quaternion. Namely, three components, an R component, a G component and a B component constituting the color image data Do are collectively processed as three-dimensional vector data. Furthermore, the parameters Wnm, Wpn, θn and θp set in the network part 16 are selected according to the luminance of the color image data Do.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：在通过中性网络处理彩色图像数据的图像处理器中获得与彩色图像数据的亮度相对应的预期的处理结果。 解决方案：通过归一化部分12将彩色图像数据Do输入到BP方法学习型中性网络14的网络部分16，其归一化为0至1的值。网络部分16应用亮度转换 基于从参数设定部18设定的参数Wnm，Wpn，θn，θp对彩色图像数据Do进行处理。此时，彩色图像数据Do被作为四元数进行处理。 即，将构成彩色图像数据Do的R成分，G成分和B成分的三个成分统称为三维矢量数据。 此外，根据彩色图像数据Do的亮度来选择网络部分16中设置的参数Wnm，Wpn，θn和θp。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2009044376A

公开(公告)日：2009-02-26

申请号：JP2007206238

申请日：2007-08-08

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： MATSUMOTO YASUSHI ,  MAEDA KAZUAKI

IPC: H04B3/50 ,  H03G1/02 ,  H03G3/02 ,  H04R3/00

Abstract: PROBLEM TO BE SOLVED: To extend a low-cost speaker by utilizing the conventional broadcast facilities.
SOLUTION: An analog audio signal amplified with an amplifier 2 is supplied to the speaker 14 via speaker wires 8N, 8C. A digital modem 38 modulates a high-frequency carrier with a digital audio signal supplied from a controller 34 to generate a digital modulated signal and this digital modulated signal is then supplied to a digital modem 50 via the speaker wires 8N, 8C for demodulation into a demodulated digital signal. The controller 54 converts the demodulated digital signal to an analog signal and then supplies this analog signal to an extended speaker 14a.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：通过利用传统的广播设施来扩展低成本的扬声器。 解决方案：用放大器2放大的模拟音频信号通过扬声器线8N，8C提供给扬声器14。 数字调制解调器38利用从控制器34提供的数字音频信号来调制高频载波，以产生数字调制信号，然后该数字调制信号经由扬声器导线8N，8C提供给数字调制解调器50，以便解调成 解调数字信号。 控制器54将解调的数字信号转换为模拟信号，然后将该模拟信号提供给扩展扬声器14a。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008182583A

公开(公告)日：2008-08-07

申请号：JP2007015352

申请日：2007-01-25

Applicant: Toa Corp ,  ティーオーエー株式会社

Inventor： NEGISHI HIROKAZU ,  OGA TOSHIRO ,  MAEDA KAZUAKI

IPC: H04R23/00

Abstract: PROBLEM TO BE SOLVED: To provide an air flow speaker which generates high grade voice.
SOLUTION: The air flow speaker 1 concerning the present invention is provided with: an air flow generation means 2 for generating air flow; an air flow passage 3 through which the air flow generated by the air flow generation means 2 passes and a passage cross section changing means 4 for changing cross section of the air flow passage 3. Then, an ultrasonic motor 10 is used as a driving source of the passage cross section changing means 4 and the ultrasonic motor 10 is controlled based on a voice signal.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供产生高等级语音的气流扬声器。 解决方案：关于本发明的气流扬声器1设置有：用于产生空气流的空气流产生装置2; 通过由气流产生装置2产生的空气流通过的气流通道3和用于改变空气流动通道3的横截面的通道横截面改变装置4.然后，使用超声波马达10作为驱动源 的通道横截面改变装置4和超声波马达10是基于声音信号进行控制的。 版权所有（C）2008，JPO＆INPIT