专利汇可以提供Inter-music part detector for automatic music selecting player专利检索,专利查询,专利分析的服务。并且PURPOSE: To detect surely inter-music parts by processing again a waveform which passes a band-pass filter.
CONSTITUTION: The output signal of an optical sensor 1 which passes a buffer amplifier 2 is inputted to a band-pass filter 3, and its band width is so set that only the frequency of a sensor output signal for an inter-music part is taken out in accordance with the search speed by the filter 3. Thus, only the signal component of an inter-music waveform passes the filter 3. That is, not only the inter-music signal of an essential inter-music position but also a noise component approximating the inter-music waveform which is caused by the variance of the reflection factor in sound grooves of a record disc having an ununiform pitch of sound grooves passes the band-pass filter 3 as it is. The output signal of a limiter 6 is allowed to pass a high-pass filter 7 to attenuate extremely the signal level of the noise component with respect to the signal level of the inter-music signal, that is, the SN ratio is improved considerably.
COPYRIGHT: (C)1986,JPO&Japio,下面是Inter-music part detector for automatic music selecting player专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
一种直调模拟电光转换集成组件 | 2020-05-08 | 954 |
一种可调谐阈值的光学限幅器 | 2020-05-18 | 228 |
一种可调谐阈值的光学限幅器 | 2020-05-12 | 305 |
用于脉冲密度调制信号的信号传输装置 | 2020-05-11 | 272 |
用于具有主动透听的ANR耳机的用户界面 | 2020-05-20 | 791 |
电力线的监视装置和方法 | 2020-05-19 | 321 |
Compensation for optical multi-path interference | 2020-05-17 | 37 |
Inspection method and inspection apparatus | 2020-05-22 | 390 |
検査方法及び検査装置 | 2020-05-22 | 931 |
VORRICHTUNG ZUM AUFSCHNEIDEN VON LEBENSMITTELPRODUKTEN | 2020-05-14 | 42 |
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。
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。