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    • 81. 发明申请
    • LOW FREQUENCY GENERATOR FOR USE BY DRUMMERS
    • 低频发生器由DRUMMERS使用
    • US20080295675A1
    • 2008-12-04
    • US12130651
    • 2008-05-30
    • Matt Leland
    • Matt Leland
    • G10H3/14
    • G10H3/146G10D13/029G10H5/04G10H2250/435
    • A device (10) used by a drummer to produce low frequency signals in response to the playing of a bass drum (D). Low frequency signals from the device are first amplified and then sent to a subwoofer near the drummer, or tactile transducer connected to the drummer's chair (C). This results in a powerful shaking effect each time the drum is struck. The device is used in a stand alone audio circuit and does not require connection into a band's complete audio system. This is important because it allows the drummer to feel a powerful shaking effect each time the drum is struck when practicing or while playing in situations where an audio system is limited or non-existent.
    • 由鼓手用来响应于低音鼓(D)的播放产生低频信号的装置(10)。 首先将来自设备的低频信号放大,然后发送到鼓手附近的低音炮或连接到鼓手椅(C)的触觉传感器。 每次敲击鼓时,都会产生强大的震动效果。 该设备用于独立音频电路,不需要连接到频段的完整音频系统。 这是重要的,因为它允许鼓手在练习时或在音频系统有限或不存在的情况下打鼓时感觉到强大的震动效果。
    • 83. 发明申请
    • Multiple channel metronome
    • 多通道节拍器
    • US20060070512A1
    • 2006-04-06
    • US11138752
    • 2005-05-26
    • Christopher ParsonsDavid Tumey
    • Christopher ParsonsDavid Tumey
    • G10H3/14
    • G04F5/025G10H2220/311Y10T442/3114Y10T442/3138Y10T442/674
    • A multiple channel metronome for use by a plurality of musicians generally includes a signal generator for producing electrical signals according to desired timing schemes and a plurality of transducers in communication with the signal generator. Each transducer, which may take the form of a piezoelectric device, a buzzer, electrodes or any substantial equivalent, is adapted to impart a sensation to one of the musicians in response to one of the generated electrical signals. The communication may be established with hardwired connections, infrared links or a radio frequency transmission system. The signal generator is under the centralized control of a conductor, bandleader, lead musician or music instructor.
    • 由多个音乐家使用的多声道节拍器通常包括用于根据期望的定时方案产生电信号的信号发生器和与信号发生器通信的多个换能器。 可以采取压电装置,蜂鸣器,电极或任何实质等效物的形式的每个换能器适于响应于所产生的电信号中的一个向音乐家之一施加感觉。 通信可以用硬连线,红外线链路或射频传输系统建立。 信号发生器由导体,乐团,音乐导演或音乐教练进行集中控制。
    • 84. 发明申请
    • Switching power supply circuit
    • 开关电源电路
    • US20060037461A1
    • 2006-02-23
    • US10527129
    • 2004-08-13
    • Masayuki Yasumura
    • Masayuki Yasumura
    • G10H3/14
    • H01F38/08H01F3/14H01F17/043H01F2017/065H02M3/28H02M3/33592Y02B70/1475
    • A switching power circuit in which a synchronous rectification circuit of the winding voltage detection system by use of a resistance device is provided on the secondary side of a compound resonance type converter, whereby a high power conversion efficiency can be obtained, and a reduction in the circuit scale through circuit simplification can be had. The gap length of an insulated converter transformer is enlarged to set the coupling coefficient at about 0.8, and the numbers of turns of the primary winding and the secondary windings are so set that the induced voltage level in the secondary winding is not more than 2 V/T. This causes the secondary-side rectified current to be in a continuous mode even under a heavy load condition by setting the magnetic flux density of the core in the insulated converted transformer to be not more than a predetermined value. Further, with inductors inserted into each rectified current circuit on the secondary side, the back electromotive forces in the inductors suppress a backward current generated in the rectified current, whereby a further reduction in the reactive power can be obtained.
    • 在复合谐振型转换器的次级侧设置有使用电阻装置的绕组电压检测系统的同步整流电路的开关电源电路,能够获得高的功率转换效率, 可以通过电路简化的电路规模。 绝缘转换变压器的间隙长度被扩大以将耦合系数设定在约0.8,并且初级绕组和次级绕组的匝数被设定为使得次级绕组中的感应电压电平不大于2V / T。 这使得即使在重负载条件下,通过将绝缘转换变压器中的磁芯的磁通密度设定为不大于预定值,也可以使次级侧整流电流处于连续模式。 此外,通过在次级侧的每个整流电路中插入电感器,电感器中的反电动势抑制了整流电流中产生的反向电流,从而可以获得无功功率的进一步降低。