Control arrangement for narrow band switching filter专利检索-匹配滤波器电子零件及设备专利检索查询-专利查询网

Control arrangement for narrow band switching filter

阅读：288发布：2022-08-02

专利汇可以提供Control arrangement for narrow band switching filter专利检索，专利查询，专利分析的服务。并且A switching-type matching filter whose switching frequency is extracted from the incident signal, characterized in that it comprises a switching frequency control loop comprising an electronically regulated oscillator, a phase discriminator supplied, on the one hand with a filtered frequency, on the other hand with the frequency of the said oscillator, as well as means for bringing the said oscillator within the coverage range of the phase discriminator and for keeping it within that range if the signal leaving the filter corresponds to predetermined conditions.，下面是Control arrangement for narrow band switching filter专利的具体信息内容。

权利要求

1. In combination with a switching type matching filter whose switching frequency is controlled by an applied signal, a switching frequency control loop comprising a voltage controlled oscillator providing said applied signal, a phase discriminator having one input connected to the output of said oscillator and a second input connected to the output of said filter, and control means responsive to the detection of the output of said filter within a given frequency range defined by predetermined upper and lower values and above a given threshold for connecting the output of said discriminator in control of said oscillator.

2. The combination defined in claim 1, wherein said control means includes a sawtooth voltage generator, a threshold detector connected to the output of said filter and logic circuit means connected to said threshold detector and said discriminator for connecting the output of said discriminator to said oscillator when the level of the said filter output signal exceeds the value of said given threshold at the same time the level of the discriminator direct output voltage is between said two predetermined values and for connecting the output of said sawtooth voltage generator to said oscillator at all other times.

3. The combination defined in claim 2, wherein said logic circuit means includes a range detector connected to the output of said discriminator for detecting when the level of the discriminator direct output voltage is between said two predetermined levels.

4. The combination defined in claim 3, wherein said logic circuit means further includes a coincidence gate having inputs connected to said range detector and said threshold detector, and a first analog gate responsive to a coincidence output of said coincidence gate for selectively connecting said discriminator to said oscillator.

5. The combination defined in claim 4, wherein said logic circuit means further includes a second analog gate, and an inverter connecting said second analog gate to said coincidence circuit, said second analog gate being responsive to a noncoincidence output of said coincidence gate for connecting said sawtooth voltage generator to said oscillaTor.

6. The combination defined in claim 1, further including manual means for controlling the frequency of said oscillator.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
基于迭代干扰消除的超奈奎斯特系统符号估计方法	2020-05-08	184
一种适用于固定翼飞机平台的卫星广播解调装置	2020-05-11	825
一种可见光通信的方法及设备	2020-05-12	377
基于张量稀疏表示的MIMO雷达成像方法	2020-05-11	485
滚降系数可变宽带卫星传输系统的定时恢复方法及装置	2020-05-13	702
混合干扰信号生成方法、装置、设备及介质	2020-05-08	774
基于EPC-MIMO编解码设计的目标距离解模糊方法	2020-05-08	19
基于分布式光纤声波传感系统的振动传感系统	2020-05-08	826
基于OFDM技术的可见光通信系统	2020-05-08	123
一种大动态范围通道模块	2020-05-13	491

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

匹配滤波器热门专利

热门分类

Control arrangement for narrow band switching filter

该功能需要专业版企业版VIP权限，您可以：