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    • 1. 发明申请
    • ROTATING BEACON SYSTEM
    • 旋转信标系统
    • WO2006031620A3
    • 2006-05-11
    • PCT/US2005032055
    • 2005-09-08
    • ELECTRONIC CONTROLS COMPANYIRELAND RICHARDBREWSTER KEVINMCKENDRY SCOTTLANING CHRIS
    • IRELAND RICHARDBREWSTER KEVINMCKENDRY SCOTTLANING CHRIS
    • B60Q1/26
    • B60Q1/2611
    • A rotating beacon system (10) and a method for synchronizing multiple rotating beacons (20, 30). The rotating beacon system includes two or more rotating beacons (20, 30) and a feedback based control system (60) adapted to sense an angular position of each of the two or more rotating beacons (20, 30) and generate two or more digitally controlled currents, each of the two or more digitally controlled currents conducted to an associated rotating beacons (20, 30), the two or more digitally controlled currents driving and controlling the angular speed of each of the two or more rotating beacons (20, 30) to regulate a pre-selected phase relationship between each of the two or more rotating beacons (20, 30).
    • 旋转信标系统(10)和用于同步多个旋转信标(20,30)的方法。 旋转信标系统包括两个或更多个旋转信标(20,30)和基于反馈的控制系统(60),其适于感测两个或更多个旋转信标(20,30)中的每一个的角位置并且产生两个或多个数字 控制电流,两个或多个受数字控制的电流中的每一个传导到相关联的旋转信标(20,30),两个或多个数字控制的电流驱动和控制两个或多个旋转信标(20,30)中的每一个的角速度 )以调节两个或更多个旋转信标(20,30)中的每个之间的预先选择的相位关系。
    • 2. 发明申请
    • MULTI-FREQUENCY ALARM FOR EMITTING NARROW BAND NOISE
    • 发射窄带噪声的多频率报警
    • WO2014040021A2
    • 2014-03-13
    • PCT/US2013058906
    • 2013-09-10
    • ELECTRONIC CONTROLS COMPANY
    • JUEL GRANT
    • B06B1/02
    • B60Q5/006B06B1/0269B60Q5/00G08B3/10G08G1/005G10K9/12
    • A multi-frequency alarm (10) generates a narrow band noise (MFA-87, -97, 102, -107) warning of a presence of a vehicle. The alarm includes noise signal circuitry (30) generating a pseudorandom bit stream to produce a noise signal that exhibits a multi-frequency spectrum; an active low-pass filter (40) receiving the noise signal and producing a narrow band noise signal, the active low-pass filter configured to establish for the narrow band noise signal spectral characteristics exhibiting a high-frequency noise signal magnitude roll-off that attenuates frequencies greater than 4 kHz; an audio amplifier (50) producing an amplified narrow band noise signal; and an audio speaker (60) responsive to the amplified narrow band noise signal and configured to emit narrow band noise sound derived from the narrow band noise signal.
    • 多频率警报(10)产生警告车辆存在的窄带噪声(MFA-87,-97,102,107)。 该警报包括产生伪随机比特流以产生呈现多频谱的噪声信号的噪声信号电路(30) 接收所述噪声信号并产生窄带噪声信号的有源低通滤波器(40),所述有源低通滤波器被配置为针对所述窄带噪声信号建立表现出高频噪声信号幅度滚降的频谱特性,所述噪声信号幅度滚降 衰减大于4kHz的频率; 产生放大的窄带噪声信号的音频放大器(50) 和响应于放大的窄带噪声信号并配置成发射从窄带噪声信号得到的窄带噪声的音频扬声器(60)。