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81.发明公开
公开(公告)号：EP2875652A1
公开(公告)日：2015-05-27
申请号：EP12745575.6
申请日：2012-07-20
Applicant: Toa Corporation
Inventor： JONAN, Tomohiro
CPC classification number: H04R27/00 , G08B29/06 , H04R29/007
Abstract: The public address system 1 comprises a transmission medium (4) including a main transmission path (4-1) and at least one branch transmission path (4-2) branching from the main transmission path (4-1), a plurality of loudspeakers (3) connected to the transmission medium (4), a first branch monitoring device (10a), and a second branch monitoring device (10b). The second branch monitoring device (10b) only transmits a transmission signal (S-2) from the main transmission path (4-1) into the branch transmission path (4-2) when the second branch monitoring device (10b) has detected that there is no transmission of the transmission signal (S-1) from the branch transmission path (4-2) to the second branch monitoring device (10b).
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公开(公告)号：EP2833122A1
公开(公告)日：2015-02-04
申请号：EP13767761.3
申请日：2013-03-29
Applicant: DKK-Toa Corporation
Inventor： OKUMURA Taketo , ISHITOBI Tsuyoshi
IPC: G01N21/47
CPC classification number: G01N21/55 , G01N21/8422 , G01N33/1833 , G01N2021/551 , G01N2021/555 , G01N2021/945 , G02B7/004
Abstract: Provided is an oil film detection device capable of detecting an oil film reliably and accurately even when separated by a distance from a water surface (detection target surface).
Provided is an oil film detection device including, in a detector W, an accommodating portion 5 which accommodates at least a light source 1, a concave mirror 2, and a light-receiving portion 4 , and a window 6 which closes the accommodating portion 5 in a watertight manner, for detecting an oil film existing on a detection target surface owing to that light is radiated from the light source 1 toward a detection target surface, reflection light from the detection target surface is collected by the concave mirror 2 and received by the light-receiving portion 4. Here, the light source 1 is arranged above the concave mirror and emits light approximately in the vertical direction. The concave mirror 2 is arranged so that an optical axis of the concave mirror 2 is perpendicular to the horizontal direction and has a through-hole 3, as a position deviated from the optical axis of the concave mirror 2, through which emitted light from the light source 1 passes. The light-receiving portion 4 is arranged at a focal position on the optical axis of the concave mirror 2.Abstract translation: 本发明提供一种油膜检测装置，即使从水面（检测对象面）离开一定距离，也能够可靠且正确地检测油膜。 本发明提供一种油膜检测装置，该检测装置在检测器W内具有至少收纳光源1，凹面镜2以及受光部4的收纳部5和封闭收纳部5的窗6 为了检测由于光从光源1朝向检测对象面而向检测对象面存在的油膜，来自检测对象面的反射光被凹面镜2聚光， 光接收部分4.这里，光源1布置在凹面镜的上方并且大致在垂直方向上发射光。 凹面镜2被配置成凹面镜2的光轴与水平方向垂直，并且具有通孔3作为与凹面镜2的光轴偏离的位置，通过该通孔3发射来自 光源1通过。 受光部4配置在凹面镜2的光轴上的焦点位置。
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公开(公告)号：EP2190114B1
公开(公告)日：2014-08-13
申请号：EP08830079.3
申请日：2008-09-03
Applicant: Toa Corporation
Inventor： KAWAI, Yuma , KAWAGUCHI, Koji
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公开(公告)号：EP2229006B1
公开(公告)日：2013-11-20
申请号：EP08703062.3
申请日：2008-01-10
Applicant: Toa Corporation
Inventor： ASADA, Kazuma , ANDOH, Hirotomo , OGAWA, Tsuyoshi
CPC classification number: H04R29/001 , H04R29/007
Abstract: 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.
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公开(公告)号：EP2395737A1
公开(公告)日：2011-12-14
申请号：EP10738580.9
申请日：2010-02-04
Applicant: Toa Corporation
Inventor： SUZUKI, Akihiro
CPC classification number: G08B13/1672 , G08B13/19645 , G08B25/006 , H04M11/04
Abstract: Provided is an intercom exchange that is able to reliably send an alert to an alert destination when an abnormal sound has been made. The intercom exchange (10) is connected to multiple terminals (201 to 215 and 30), and includes multiple communication paths (DSPs 121 to 128), a digital switch circuit (11) for switching connections between the terminals and the communication paths, and a CPU (13) that controls the DSPs and the switch circuit (11). The CPU (13) performs control for preferentially allocating a communication path to the first terminal (201), and the allocated DSP determines whether a sound from the first terminal (201) that has been received as input via the switch circuit (11) is an abnormal sound. Upon determining that the sound is an abnormal sound, the allocated DSP notifies the CPU (13), and upon receiving the notification, the CPU (13) determines an alert destination based on the notification and performs alert processing for sending an alert to the alert destination.
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Patent Agency Ranking
公开(公告)号：EP2229006A1
公开(公告)日：2010-09-15
申请号：EP08703062.3
申请日：2008-01-10
Applicant: Toa Corporation
Inventor： ASADA, Kazuma , ANDOH, Hirotomo , OGAWA, Tsuyoshi
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.
Abstract translation: 来自音频信号源2的音频信号在放大器4中被放大，放大的音频信号通过扬声器线6提供给彼此并联连接的多个扬声器8。 来自DSP 10的包含人类音频频带的最低频率附近的频率中的一个或两个以及接近最高频率的频率的测试信号与组合器13中的音频信号组合并提供给扬声器线路6。 设置在放大器4的输出端的电流检测电路14和电压检测电路16的输出信号被提供给DSP 10，以分析测试信号的频率分量，以及扬声器8和扬声器线6的复合阻抗 是基于频率分量分析计算的。 DSP 10将复合阻抗与阈值进行比较，以检测扬声器线路的线路断线或阻抗的降低。
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公开(公告)号：EP1441460B1
公开(公告)日：2008-06-04
申请号：EP02800788.8
申请日：2002-10-08
Applicant: Toa Corporation
IPC: H04L1/00
CPC classification number: G10L21/0208 , H04L1/004
Abstract: Digital audio data with error detection bits added thereto is input into an error detection and correction unit 4. The correction unit 4 corrects an error when the error is detected in the digital audio data. The digital audio data output from the error detection and correction unit 4 is input into an impulse noise suppression circuit 6. The suppression circuit 6 is operated for a predetermined time when the error detection and correction unit 4 has detected an error.
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公开(公告)号：EP1367762B1
公开(公告)日：2007-11-21
申请号：EP02700759.0
申请日：2002-02-25
Applicant: Toa Corporation
Inventor： EJIMA, Ken'ichi, c/o TOA Corporation
IPC: H04L7/02
CPC classification number: H04L7/0331
Abstract: A master clock signal source (10) generates a master clock signal of a frequency which is N (N is a positive integer) times the bit rate of the received data. An N-ary counter (12) counts the master clock signals. An edge detector circuit (4) detects the transition from an H level to an L level of the received data. A counter (8) counts the master clock signals. When the count becomes 2N while three edge detection signals are generated, the counter (8) resets the N-ary counter (12). A clock generating unit (14) generates a clock signal according to the count made by the N-ary counter (12).
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公开(公告)号：EP1655993A1
公开(公告)日：2006-05-10
申请号：EP04746766.7
申请日：2004-06-24
Applicant: Toa Corporation
Inventor： HIGASHIHARA, Daisuke
IPC: H04R3/02
CPC classification number: H04R29/007 , H04R3/02 , H04R27/00 , H04R2227/007
Abstract: A howling margin measuring device 20 comprises processing means 28 composed of gain controlling means 21 and a compressor 22 which are connected in series and controlling means 23. The gain controlling means 21 outputs an input sound signal after giving a gain thereto. If the level of a sound signal input to the compressor 22 is equal to or higher than a threshold level, the compressor 22 outputs the sound signal after compressing it with a specified ratio. The controlling means 23 is capable of controlling the gain of the gain controlling means 21 and reading the compression level of the compressor 22. The controlling means 23 reads the compression level of the compressor 22 while gradually increasing the gain of the gain controlling means 21, determines whether or not howling has been generated based on whether the read compression level has a value equal to or higher than a specified value, and calculates a howling margin based on the gain of the gain controlling means 21 when it is determined that howling has been generated.
Abstract translation: 啸叫余量测量装置20包括由串联连接的增益控制装置21和压缩器22组成的处理装置28和控制装置23.增益控制装置21在给予增益之后输出输入声音信号。 如果输入到压缩机22的声音信号的电平等于或高于阈值电平，则压缩机22以规定的比例对其进行压缩后输出声音信号。 控制装置23能够控制增益控制装置21的增益并读取压缩机22的压缩电平。控制装置23在逐渐增加增益控制装置21的增益的同时读取压缩机22的压缩电平， 基于读取压缩级别是否具有等于或高于指定值的值来确定是否已经产生啸叫，并且当确定已经发出啸声时，基于增益控制装置21的增益来计算啸叫余量 产生。
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公开(公告)号：EP1655990A1
公开(公告)日：2006-05-10
申请号：EP04747719.5
申请日：2004-07-12
Applicant: Toa Corporation
Inventor： GANLEY, Richard , TANAKA, Tomohisa
IPC: H04R1/04
CPC classification number: H04B17/24 , H04B1/20 , H04R29/004 , H04R29/008 , H04R2410/00 , H04R2420/07 , H04R2499/11
Abstract: A wireless microphone communication system 1 comprises one or more controllers 21 to 24 having LAN interfaces, one or more receivers 11 to 18 having the LAN interfaces and being configured to receive a radio wave from a transmitter of a wireless microphone. The one or more receivers 11 to 18 are coupled to the one or more controllers 21 to 24 on LAN. Each controller 21 to 24 is coupled to a corresponding display device. Each controller 21 to 24 receives, from the one or more receivers 11 to 18, information of the receiver through the LAN. Each controller 21 to 24 causes the received information of the receiver to be displayed on the corresponding display device.
Abstract translation: 无线麦克风通信系统1包括具有LAN接口的一个或多个控制器21至24，具有LAN接口的一个或多个接收器11至18，并且被配置为从无线麦克风的发射器接收无线电波。 一个或多个接收器11至18耦合到LAN上的一个或多个控制器21至24。 每个控制器21至24耦合到相应的显示装置。 每个控制器21至24从一个或多个接收器11至18接收通过LAN的接收器的信息。 每个控制器21至24使接收器的接收信息显示在相应的显示设备上。
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