首页 / 专利库 / 变压器和转换设备 / 正弦波滤波器 / Electronic musical instrument with plural channels providing different phase shift

Electronic musical instrument with plural channels providing different phase shift

阅读:287发布:2023-04-10

专利汇可以提供Electronic musical instrument with plural channels providing different phase shift专利检索,专利查询,专利分析的服务。并且The invention disclosed provides an electric musical instrument having an audio frequency signal source, an output from which the audio frequency signal passes to a plurality of parallel transmitting channels each of which comprises a delay line series circuit, a lowpass filter, an amplifier and loud speaker. Switching oscillators are disposed to provide 2 gate pulse trains, one running in opposite phase with regard the other, to the delay line series curcuit. Low frequency generators are disposed for generating a sine shaped sub-audio frequency signal to one of the switching oscillators while remaining units of the switching oscillators are connected to phase shifting networks. A second output from the audio frequency signal source connects to the amplifier of the last of the plurality of transmitting channels. The resultant combination of elements produces an ensemble effect.,下面是Electronic musical instrument with plural channels providing different phase shift专利的具体信息内容。

1. An electric musical instrument which comprises in combination, an audio frequency signal source; an output terminal for the audio frequency source; a plurality of parallel transmitting channels each of which comprises a delay line series circuit, a low pass filter, an amplifier and loud speaker all interconnected; said delay line series circuit connected to receive the audio frequency signal from said output terminal; a switching oscillator disposed to provide two gate pulse trains, one running in opposite phase with regard the other to the delay line series circuit; a first and a second sine shaped signal low frequency generator disposed for generating a sine shaped subaudio frequency signal to one of said switching oscillators; at least a first and a second phase shifting network each disposed to receive signals respectively from said first and second sine shaped signal low frequency generators, said first and second phase shifting networks disposed to provide a sum output signal to a second delay line series circuit; each of the further plurality of parallel transmitting channels having receiving imputs for Switching oscillators from further first and second phase shifting networks each disposed to receive signals respectively from prior disposed phase shifting networks; and a second output from the audio frequency signal source, said second output connected to the amplifier of the last of said plurality of transmitting channels.
2. The electronic musical instrument of claim 1 wherein the frequency of the signal generated by the first generator is less than 1 Hz and that of the second signal is in the range from 5 to 6 Hz, the fixed mutual phase shift amounting to 360* divided by the number of transmission channels.
3. The electronic musical instrument of claim 1 wherein the phase shifting networks each comprise a controllable shift register connected for operation with said two gate pulse trains running in opposition, said gate pulses in a train succeeding each other with a repetition time that is sufficiently short not to exceed the inverse value of twice the bandwidth of the audio frequency signal, and which is modulated with the signal being obtained by summing in the phase shifting network.
说明书全文
高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。

申请试用

QQ群二维码
意见反馈