公开(公告)号：US5800240A

公开(公告)日：1998-09-01

申请号：US657856

申请日：1996-05-31

申请人： Douglas L. Jackson

发明人： Douglas L. Jackson

IPC分类号： A63H15/00 ,  A63H18/02 ,  A63H29/08 ,  A63H33/06

CPC分类号： A63F7/3622 ,  A63F2007/3662

摘要： A marble race toy including a modular track that is assembled by the user from channel components into any desired configuration. An infrastructure is utilized to support the desired track layout. An infrastructure is utilized to support the desired track layout. Affixing elements are used to fix dowel rods of the infrastructure in place, and thereby support the modular components of the track. An elevator with an endless conveyor raises the marbles to a start position of the track, and retrieves them from an end position of the track.

摘要翻译： 一种大理石种族玩具，其包括由用户从通道部件组装成任何所需配置的模块化轨道。 利用基础设施来支持所需的轨道布局。 利用基础设施来支持所需的轨道布局。 固定元件用于将基础设施的定位杆固定就位，从而支持轨道的模块化部件。 具有环形输送机的电梯将大理石提升到轨道的起始位置，并从轨道的终点位置检索它们。

公开(公告)号：US06504935B1

公开(公告)日：2003-01-07

申请号：US09136446

申请日：1998-08-19

申请人： Douglas L. Jackson

发明人： Douglas L. Jackson

IPC分类号： H03G300

CPC分类号： H04B1/0025 ,  G10H1/125 ,  G10H1/16 ,  G10H3/187 ,  G10H2250/115 ,  G10H2250/191 ,  G10H2250/235 ,  G10H2250/545 ,  H04B1/0003 ,  H04B1/28

摘要： Distortion modeling produces distortion models for use by a distortion synthesizer to synthesize the harmonic distortion effects of audio distortion devices. A sinusoidal waveform is distorted by an audio distortion device and analyzed using a Fourier transform to produce a distortion model comprising harmonic amplitude and phase parameters. A phase correction process compensates for phase shifts induced by the audio distortion device. The distortion synthesizer uses a distortion function that distorts a digital audio signal according to the distortion model. The distortion model can be modified to alter the distortion effect and can be stored in a data-storage device for later retrieval. A frequency bandsplitter and signal mixer allow the distortion effect to be applied only to the low frequency content of the digital audio signal, thus providing spectral headroom to suppress the production of aliasing noise. Aliasing-noise suppression is provided for a full-bandwidth signal by up-converting the sampling rate of the signal before applying the distortion function and down-converting the sampling rate afterwards. A process is provided to remove the direct-current component that may be induced into the signal by the distortion function.

摘要翻译： 失真建模产生失真模型，由失真合成器使用，以合成音频失真设备的谐波失真效应。 正弦波形由音频失真装置失真，并使用傅立叶变换进行分析，以产生包括谐波幅度和相位参数的失真模型。 相位校正处理补偿由音频失真装置引起的相移。 失真合成器使用根据失真模型扭曲数字音频信号的失真函数。 可以修改失真模型以改变失真效应，并将其存储在数据存储设备中以供以后检索。 频带分配器和信号混频器使得失真效应仅适用于数字音频信号的低频内容，从而提供频谱余量来抑制混叠噪声的产生。 通过在施加失真函数之前对信号的采样率进行上变频，然后对采样率进行下转换，为全带宽信号提供混叠噪声抑制。 提供了通过失真功能去除可能被感应到信号中的直流分量的过程。