Charging pulse transmission system
专利汇可以提供Charging pulse transmission system专利检索，专利查询，专利分析的服务。并且PURPOSE:To prevent hearing of a called-subscriber's name from becoming hard due to a tone calling for a coin, by stopping transmission of the tone at the time of called-subscriber's response when one coin is put in. CONSTITUTION:Relays M and P in a public telephone operate when coins are inserted. Here, when a calling subscriber inserts only one coin, signal tone oscillator TG is unable to oscillate because contact (f) of relay F forms a short circuit, so that a tone calling for a coin is prevented from being sending to the calling subscriber. Consequently, the transmission of the tone at the time of called-subscriber's response when one coin is inserted is prevented and when not less than two coins are inserted, the fixed tone can be sent out. Therefore, the hearing of the subscriber's name at the time of the subscriber's response can be prevented from becoming hard due to the tone.，下面是Charging pulse transmission system专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 射频信号收发和处理的方法、设备及基站系统 | 2020-05-17 | 377 |
| 具有最小化相位噪声用的可调谐滤波器的振荡电路 | 2020-05-24 | 144 |
| 用于功率因子校正和减少电力传输网络中的失真和噪声的方法和设备 | 2020-05-26 | 428 |
| 虚拟韦弗结构滤波器 | 2020-05-18 | 598 |
| 移动终端及其信号处理方法、基带芯片、射频芯片 | 2020-05-20 | 549 |
| 实时示波器上的实时谱触发系统 | 2020-05-22 | 530 |
| 一种窄线宽嵌套腔光参量振荡器 | 2020-05-08 | 842 |
| 基于直接数字化测量和处理的精密频率改正器 | 2020-05-11 | 306 |
| 一种垃圾场专用网络监控系统 | 2020-05-16 | 675 |
| INTELLIGENT COUPLER DEVICE FOR UTILITY METER AND METHOD FOR OPERATING THEREOF | 2020-05-19 | 246 |
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。
