Optical space receiver
专利汇可以提供Optical space receiver专利检索，专利查询，专利分析的服务。并且PURPOSE: To improve S/N in a weak optical signal and BER (error rate) by providing 1st and 2nd PLLs composed of a phase comparator circuit, a loop filter and a voltage controlled oscillator circuit respectively.
CONSTITUTION: When an optical signal from a transmission section is made incident on one photodetector 1 or above in a light receiving section, the signal is converted into a weak electric signal corresponding to the intensity of the optical signal and inputted to a 1st PLL 8 via a preamplifying circuit 2, a limiter circuit 3 and a BPF 4. The PLL 8 is constituted of a closed loop composed of a phase comparator 5, a loop filter 6 and a voltage controlled oscillator 7 and obtains a signal synchronously with the phase of the input signal from the circuit 7. Then the output signal from the circuit 7 is demodulated into an organic signal by a closed loop of a 2nd PLL 12 (composed of a phase comparator 9, a loop filter 10 and a voltage controlled oscillator 11). Then the signal is amplified by an amplifier circuit 13, the waveform is shaped via a Schmitt trigger 14 and the resulting signal is outputted. Thus, the S/N of the minute optical signal is improved to improve the error rate.
COPYRIGHT: (C)1991,JPO&Japio，下面是Optical space receiver专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种高效率日盲紫外光发射及接收器系统 | 2020-05-11 | 556 |
| 一类含基于喹啉的稠环单元的规整型聚合物及其制备方法与应用 | 2020-05-16 | 157 |
| 一种光电探测器及其制备方法和应用 | 2020-05-08 | 631 |
| 一种硒化物纳米棒、其制备方法及其制备的光电探测器 | 2020-05-12 | 278 |
| 一种新型便携式细菌实时检测芯片系统及检测方法 | 2020-05-12 | 942 |
| 一种网络结构硅基点阵的制备方法及其应用 | 2020-05-08 | 856 |
| 一种单片集成型平衡光电探测器芯片及制作方法 | 2020-05-14 | 647 |
| 一种有机/无机pn结纳米阵列的柔性广谱光电探测器及其制备方法 | 2020-05-14 | 959 |
| 一种有机无机杂化钙钛矿光电探测器及其制备方法 | 2020-05-08 | 367 |
| 基于MPPC的多功能射线探测器 | 2020-05-12 | 456 |
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。
-
10 共役ポリマー
