Digital automatic gain control专利检索-可变增益放大器差分放大器电子零件及设备专利检索查询-专利查询网

Digital automatic gain control

阅读：62发布：2023-11-06

专利汇可以提供Digital automatic gain control专利检索，专利查询，专利分析的服务。并且An analog to digital signal converting amplifier with automatic gain control. Input analog signal levels are converted to digital form after passing through a variable gain amplifier device. The digital signals are reconverted to analog form and compared to the input analog levels to produce an error signal which is averaged and used to control the gain of the amplifier device. The analog to digital converted produces a maximum output data indication even through the input level may be excessive. A nonzero difference signal is generated even if the digital output is zero.，下面是Digital automatic gain control专利的具体信息内容。

权利要求

1. An automatic gain control circuit for a data responsive amplifier comprising: variable gain input amplifier means responsive to an analog data signal of variable amplitude to produce a variable amplitude analog output signal the amplitudE of which varies between substantially zero and A where A is a finite maximum output level; analog-to-digital output converter means having an input connected to receive the analog output of the variable gain amplifier and a plurality of output terminals, the analog-to-digital converter being operative to produce on said output terminals the digital equivalent of the amplitude of the signal applied to said input terminal up to a finite maximum output signal level B where B is less than A; feedback means connected between the variable gain input amplifier and said output terminals and being operative to vary the gain of said input amplifier and including a digital-to-analog converter having a plurality of input terminals connected to the output terminals of the analog-to-digital converter and further having an output terminal on which an analog signal is produced which is the mathematical equivalent of the signal on said input terminals; a differential amplifier having two input terminals connected to receive the analog output of the input amplifier on one terminal and the analog output of the digital-to-analog converter on another terminal and to compare the signals on said terminals and to produce an error signal related to the difference therebetween; multiplier means connected to receive the output of the digital-to-analog converter as well as the error signal output of the differential amplifier means and being operative to produce a second error signal which varies in amplitude between C and B where C is a finite minimum amplitude signal greater than zero but less than A; integrator means connected to receive the second error signal and to integrate the signal with time to produce a slowly-increasing error signal component, said error signal component being connected to the input amplifier to vary the gain thereof in such a direction as to reduce the feedback error signal toward zero.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
一种全波形超声波探伤仪	2020-05-08	146
在通信装置的接收链中使用的系统和方法	2020-05-11	464
无线通信系统及用于其中的回声消除的方法、装置和介质	2020-05-08	721
一种基于LVDT传感器的运动方向判别系统及方法	2020-05-08	723
代币传感器组件、设备以及控制代币传感器组件的方法	2020-05-11	110
感测晶体管的偏移添加电路	2020-05-11	405
混合键合的图像传感器的电路和读取方法	2020-05-11	387
可用于激光雷达的放大电路、激光雷达、控制方法	2020-05-11	116
增益调节模块、控制方法及植入式神经刺激系统	2020-05-11	734
一种可变增益放大器和生物信号处理芯片	2020-05-08	753

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

可变增益放大器热门专利

热门分类

Digital automatic gain control

该功能需要专业版企业版VIP权限，您可以：