公开(公告)号：EP2863656B1

公开(公告)日：2019-08-21

申请号：EP12879535.8

申请日：2012-06-19

Applicant: Toa Corporation

Inventor： MIYATA Satoshi ,  KUBOTA Hiroshi

IPC: H04R29/00 ,  H04R3/00 ,  H04R3/12

公开(公告)号：EP1655990B1

公开(公告)日：2019-03-06

申请号：EP04747719.5

申请日：2004-07-12

Applicant: Toa Corporation

Inventor： GANLEY, Richard ,  TANAKA, Tomohisa

IPC: H04B17/24 ,  H04B1/20 ,  H04R29/00

公开(公告)号：EP2584792B2

公开(公告)日：2018-09-12

申请号：EP13151672.6

申请日：2008-01-10

Applicant: Toa Corporation

Inventor： Asada, Kazuma ,  Andoh, Hirotomo ,  Ogawa, Tsuyoshi

IPC: H04R3/00 ,  H04R29/00

CPC classification number: H04R29/001 ,  H04R29/007

Abstract: [Object] An audio signal from an audio signal source 2 is amplified in an amplifier 4, and the amplified audio signal is supplied through a loudspeaker line 6 to a plurality of loudspeakers 8 connected in parallel with each other. A test signal from a DSP 10 containing one or both of a frequency near the lowest frequency of the human audio frequency band and a frequency near the highest frequency, is combined with the audio signal in a combiner 13 and supplied to the loudspeaker line 6. Output signals of a current detecting circuit 14 and a voltage detecting circuit 16 disposed in the output of the amplifier 4 are supplied to a DSP 10 to analyze frequency components of the test signal, and a composite impedance of the loudspeakers 8 and the loudspeaker line 6 is computed based on the frequency component analysis. The DSP 10 compares the composite impedance with a threshold value to detect line breakage or decrease in impedance of the loudspeaker line.

公开(公告)号：EP2955934B1

公开(公告)日：2017-09-20

申请号：EP13874600.3

申请日：2013-02-05

Applicant: Toa Corporation

Inventor： KUBOTA, Hiroshi ,  MIYATA, Satoshi

IPC: H04R3/00 ,  H04R1/40 ,  H04S7/00

CPC classification number: H04R1/323 ,  G06F3/165 ,  H04R1/403 ,  H04R3/12 ,  H04R5/04 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2203/12 ,  H04S7/302

公开(公告)号：EP2955934A1

公开(公告)日：2015-12-16

申请号：EP13874600.3

申请日：2013-02-05

Applicant: Toa Corporation

Inventor： KUBOTA, Hiroshi ,  MIYATA, Satoshi

IPC: H04R3/00 ,  H04R1/40

CPC classification number: H04R1/323 ,  G06F3/165 ,  H04R1/403 ,  H04R3/12 ,  H04R5/04 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2203/12 ,  H04S7/302

Abstract: Provided is a loudspeaker system capable of easily determining control parameters for controlling the directional characteristics of a speaker set including two or more speaker units.
The loudspeaker system is configured to include: a speaker set 11 including two or more speaker units 2; a camera 15 adapted to photograph an acoustic space of the speaker set 11; a monitor 22 adapted to display a camera image 30 photographed by the camera 15; and a directional control parameter generating part 24 adapted to generate directional control parameters providing the directional characteristics of the speaker set 11. The directional control parameter generating parts 24 includes: a target position designation part 101 adapted to, on the basis of user operations, designate target positions 32 on the camera image 30; a directional control angle calculation part 103 adapted to, on the basis of the target positions 32, obtain directional control angles θ with respect to a front direction of the speaker set 11; and a directional control parameter determination part 104 adapted to, on the basis of the directional control angles θ, determine the directional control parameters.

Abstract translation: 提供一种扬声器系统，其能够容易地确定用于控制包括两个或更多个扬声器单元的扬声器组的方向特性的控制参数。 扬声器系统被配置为包括：包括两个或更多个扬声器单元2的扬声器组11; 照相机15，其适于拍摄扬声器组11的声学空间; 适于显示由照相机15拍摄的照相机图像30的监视器22; 以及适于产生提供扬声器组11的方向特性的方向控制参数的方向控制参数产生部分24.方向控制参数产生部分24包括：目标位置指定部分101，其适于根据用户操作指定 相机图像30上的目标位置32; 适于基于目标位置32的方向控制角计算部103获得相对于扬声器组11的前方向的方向控制角度¸; 以及适于基于方向控制角度¸来确定方向控制参数的方向控制参数确定部分104。

公开(公告)号：EP2862369A1

公开(公告)日：2015-04-22

申请号：EP12731186.8

申请日：2012-06-15

Applicant: Toa Corporation

Inventor： JONAN, Tomohiro ,  IKOMA, Tsuneo

IPC: H04R27/00 ,  H04R29/00

CPC classification number: H04R29/007 ,  H04R27/00

Abstract: The public address system 1 comprises a transmission medium 4 having a loop shape and a plurality of loudspeakers 3. The transmission medium 4 transmits a transmission signal therethrough in a first direction and in a second direction opposite to the first direction. The transmission signal includes a communication signal having a predetermined frequency range and an audio signal having a different frequency range than the communication signal. The public address system 1 further comprises a first filter unit 51 connected to the transmission medium 4 that is configured to filter the transmission signal to attenuate the communication signal and output the audio signal. The first filter unit 51 is connected to the transmission medium 4 such that the communication signal is prevented from transmission in the first direction while the communication signal and the audio signal are transmitted in the second direction.

公开(公告)号：EP2584792B1

公开(公告)日：2014-04-16

申请号：EP13151672.6

申请日：2008-01-10

Applicant: Toa Corporation

Inventor： Asada, Kazuma ,  Andoh, Hirotomo ,  Ogawa, Tsuyoshi

IPC: H04R3/00 ,  H04R29/00

CPC classification number: H04R29/001 ,  H04R29/007

公开(公告)号：EP1388965B1

公开(公告)日：2011-12-28

申请号：EP02700758.2

申请日：2002-02-25

Applicant: Toa Corporation

Inventor： SHIBUYA, Takako, c/o TOA Corporation ,  TANAKA, Tomohisa, c/o TOA Corporation

IPC: H04L1/00 ,  H04B1/04 ,  G06F11/10

CPC classification number: H04L1/007 ,  H04L1/0001 ,  H04L1/0045 ,  H04L1/06 ,  H04L1/20

Abstract: A transmitter (1) has an A/D converter (4) that converts an input signal from a microphone (2) into a digital signal of a plurality of bits every predetermined period. An encoder (6) divides the digital signal into blocks, adds a parity bit to each block, and creates a coded signal. A transmitting unit (8) modulates a carrier wave with the coded signal and transmits the modulated carrier wave from an antenna (10). A receiver (12) has two tuning units (18A, 18B). Coded signals outputted from the tuning units (18A, 18B) and related to each other are inputted into a decoder (20). A decoder (20) checks the parity of each block of the corresponding coded signal, selects an error-free block out of the blocks corresponding to the coded signals related to each other, and outputs the block.

公开(公告)号：EP2190114A1

公开(公告)日：2010-05-26

申请号：EP08830079.3

申请日：2008-09-03

Applicant: Toa Corporation

Inventor： KAWAI, Yuma ,  KAWAGUCHI, Koji

IPC: H03F3/20 ,  H04R3/00 ,  H04R3/12

CPC classification number: H03F3/085 ,  H03F1/52 ,  H03F3/181 ,  H03F3/20 ,  H03F2200/03 ,  H04R3/12

Abstract: [Object]
To downsize a power amplifier, while keeping isolation between a transmission line and ground potential.
[Means to Realize Object]
Two terminals (2a, 2b) of an audio signal source (2) are connected to an input of an isolation input circuit (6). An audio signal developed, being isolated from the input-side, between two output-side terminals (6a, 6b) of the isolation input circuit (6) are inputted to a power amplifying stage (12). The power amplifying stage (12) amplifies the audio signal and outputs it at a high voltage from two output terminals (12c, 12d) to a plurality of loudspeakers (22) without using an insulation transformer. Operating power is supplies to the power amplifying stage (12) from two power supply terminals (20c, 20d) of a DC power supply (14). One (6d) of the terminals of the insulation input circuit (6), one (12d) of the output terminals of the power amplifying stage (12) and one (20d) of the power supply terminals of the DC power supply (14) are connected together to provide a common potential point different from the ground potential.

Abstract translation: [对象]为了减小功率放大器的尺寸，同时保持传输线和接地电位之间的隔离。 [实现对象的手段]音频信号源（2）的两个端子（2a，2b）连接到隔离输入电路（6）的输入端。 在隔离输入电路（6）的两个输出侧端子（6a，6b）之间产生与输入侧隔离的音频信号被输入到功率放大级（12）。 功率放大级（12）放大音频信号，并且在不使用绝缘变压器的情况下以高电压从两个输出端子（12c，12d）向多个扬声器（22）输出。 工作电源是从直流电源（14）的两个电源端子（20c，20d）向功率放大级（12）供电。 绝缘输入电路（6）的端子中的一个（6d），功率放大级（12）的一个输出端（12d）和直流电源（14）的一个（20d）电源端子 连接在一起以提供与地电势不同的公共电位点。

公开(公告)号：EP2037254A1

公开(公告)日：2009-03-18

申请号：EP07790417.5

申请日：2007-06-27

Applicant: DKK-Toa Corporation

Inventor： ARAKAWA, Satoshi

IPC: G01N21/35

CPC classification number: G01N21/359 ,  G01N21/314 ,  G01N21/3577 ,  G01N33/28

Abstract: To provide an oil type discrimination method and an oil type discriminator capable of accurately discriminating a type of oil even when light-shielding components exist in the oil and of preventing in advance erroneous discrimination of a mixture of oil.
There are provided step S1 in which the transmission spectrum of near infrared light is measured, step S2 in which the transmission spectrum is converted into an absorbance spectrum, a first discrimination step S3 in which between gasoline type and non-gasoline type is discriminated by comparing the difference in absorbance between two wavelengths existing in the vicinities of respective attribute wavelengths of predetermined chemical bonds with 0.0, step S4 in which the first derivative spectrum of the absorbance is found, a second discrimination step S5 in which a value, which is obtained by multiplying respective first derivative values of absorbance of at least four wavelengths existing in the vicinities of respective attribute wavelengths of predetermined chemical bonds by respective coefficients and further adding a constant to the sum, is compared with 0.0 and thus between regular gasoline and high-octane gasoline is discriminated, and a third discrimination step S6 in which the difference in absorbance between two wavelengths existing in the vicinities of respective attribute wavelengths of predetermined chemical bonds is compared with 0.0 and thus between kerosene and diesel oil is discriminated.

Abstract translation: 为了提供一种即使在油中存在遮光组分也能够准确地辨别油类的油类鉴别方法和油类鉴别器，并且预先防止油混合物的错误辨别。 提供了步骤S1，其中测量近红外光的透射光谱，其中将透射光谱转换为吸收光谱的步骤S2，通过比较鉴别汽油型和非汽油型之间的第一判别步骤S3 存在于具有0.0的预定化学键的各个属性波长附近的两个波长之间的吸光度差异，其中发现吸光度的一阶导数光谱的步骤S4;第二判别步骤S5，其中值由 将存在于预定化学键的各个属性波长附近的至少四个波长的吸光度的各个一阶导数乘以相应的系数并进一步加和一个常数，与0.0进行比较，因此与常规汽油和高辛烷值汽油 以及第三判别步骤S6，其中 将存在于预定化学键的各个属性波长附近的两个波长之间的吸光度差与0.0进行比较，从而鉴别煤油和柴油之间的吸光度差。