首页 / 专利库 / 广播 / 卫星电视 / Scramble television system

Scramble television system

阅读:207发布:2022-09-14

专利汇可以提供Scramble television system专利检索,专利查询,专利分析的服务。并且PURPOSE:To attain to cope with FM of a satellite broadcast, by using a television signal inverting a signal of a horizontal blanking period for making the interception much difficult with irregular inversion so as not to suppress a burst signal. CONSTITUTION:A scramble television signal (a) inputted from a terminal 27 is shared to gate switch circuits 36, 28. When a horizontal synchronizing pulse signal (b) formed with an audio subcarrier is impressed to a gate terminal 38 of the gate switch circuit 36, a voltage waveform C at the horizontal synchronizing pulse is outputted, only the upper pulse of the waveform C is extracted at a waveform shaping circuit 37 to output a waveform (d) of only the inverted horizontal synchronizing pulse of the scramble television signal (a). A signal (f) of the horizontal blanking period inserted with inversion is outputted to an output 30 of the gate switch circuit 28, other television signal (g) is outputted to an output 31, and the signals (f), (g) are outputted as a normal television signal (h) at an inverting synthesis circuit 33.,下面是Scramble television system专利的具体信息内容。

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