专利汇可以提供Frequency generating system专利检索,专利查询,专利分析的服务。并且PURPOSE:To obtain a group and a supergroup pilot frequency generating system without need of frequency maintenance, by comparing a frequency of a main oscillator and a pilot frequency and driving a voltage controlled oscillator with the comparison output via an up-down counter. CONSTITUTION:In a generating system of group/supergroup pilot frequency of an FDM carrier device, a fundamental frequency fFUND from a main oscillator 1 is 1/N-frequency-divided at a frequency-divider 2 to be a reference frequency fs and inputted to a frequency converter 3. An output of a voltage controlled oscillator VCO5 is 1/M-frequency-divided at a frequency divider 4 to be a frequency fm and inputted and compared with the fs at the comparator 3. The output of the comparator 3 controls an up-down counter 6 to +1, -1 or as it is depending if the fm is higher, lower than or equal to the fs. The output of the counter 6 is inputted to a D/A converter 7 to control the frequency of the VCO5 with a voltage proportional to the count value and this operation is continued until the fs is equal to the fm. The frequency of the VCO5 is 1/L- frequency-divided at a frequency divider 8 and outputted from a filter 9 as a specified frequency.,下面是Frequency generating system专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
一种绕包带叠带自动检测装置 | 2020-05-15 | 245 |
一种公路撒布车 | 2020-05-08 | 231 |
多电极土壤水分检测仪 | 2020-05-08 | 55 |
制冷片的供电系统 | 2020-05-11 | 679 |
一种数字式操纵负荷系统 | 2020-05-13 | 423 |
一种遥操作系统 | 2020-05-15 | 386 |
一种冲击波传感器多路供电系统 | 2020-05-14 | 777 |
车辆配电控制装置和方法 | 2020-05-14 | 706 |
一种纯电动汽车的电气系统及其工作方法 | 2020-05-15 | 44 |
升降压型直流转换器 | 2020-05-15 | 895 |
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。