The criminal complaint quoted volterra ' s vice president of design engineering david lidsky as saying the transmitted information about the firm ' s 1100 - series products " related to the design of high - performance analog and mixed - signal power management semiconductors . 起诉材料引用volterra公司负责产品设计的副总裁戴维话说，蔡先生盗窃的资料都是该公司1100系列产品中“有关高性能模拟和混合信号功率管理半导体的设计技术” 。
Among the many testing methods of analog and mixed signal circuits booming up in recent years , the pseudorandom testing technique is easier to generate testing stimuli and the current - based testing method could magnify the response differences between fault - free circuits and faulty circuits 近年来提出的很多种模拟及混合信号电路测试方法中,伪随机测试法易于产生测试激励,基于电流的测试法能使正常电路和故障电路的频率响应的差别增大。
Since a pseudo - covariance matrix of the observed signals supply additional constraints if the sources are assumed to be independent and improper , it can be proved that the second order statistics is sufficient to separate the mixed complex - value signals for both stationary and non - stationary sources 假设源信号是独立的且非常态，信号的伪协方差矩阵能增加约束条件，从而可证明二阶统计量能够完全分离复值混合信号，而且对信号是否平稳不作要求。
The advantages of the two methods are combined together in the pseudo - random current injection testing method , which improves the efficiency and correctness of the test , and which is much more operable , thus it is very applicable in built - in - self - testing of analog and mixed signal circuits in system chips 伪随机注入电流测试法结合了两种方法的优点,提高了测试的效率和正确性,实现时简单易行,非常适合于系统芯片中对模拟及混合信号电路的内建自测试。
During the past decade , blind source separation - bss has been a focus in the research area of signal processing . ranging from wireless communication to medical signals processing , to image enhancement and to audio mixtures separation , bss is a powerful tool to tackle those problems because it can reconstruct the original signals from the observed signals without any prior knowledge of the mixing system and source signals 盲信号分离技术是近年来信号处理领域的一个研究热点，由于其能够从观测的混合信号中恢复出原始信号，而对原始信号和混合系统的先验知识要求很少，因此在无线通信、医学信号处理、图像增强和语音分离方面有着广泛的应用。
Presently , the important ip cores under development in our country include microprocessor , memory , mixed signal circuit , interface circuit , programmed logic circuit and intelligent power circuit etc . the pci local bus , because of its high - speed and broad bus - width features , has turned into the hot point of ip core researches , for lots of ic manufacture , especially for our country ' s 863 - plan ic item 目前，国内重点发展的ip核包括微处理器类、存储器类、混合信号电路类、接口电路类、可编程逻辑电路类及智能电源电路类等。 pci总线由于其高速、宽带等优越特性，成为各大厂商开发ip核的重点，也是国家863计划ic项目发展的重点。
So in this paper , the principle of electroptical non - invasive dual - ray methods are fist present in detail . in the theorem of simple structure and low power consumption , we select detecter with fitble wavelenth and low power msp430 processor , and design high stable ray - emitt circuit , low noise pre - amplifier , background disturbance counteract circuit , the signal are low - filtered and sent to msp430 " a / d transform directly to digital signal processing 为此,本文详细分析了光电无创双光束法测定脉搏血氧饱和度的基本原理,在结构简单,功耗小的原则下,选用合适发光波长的探头和信号处理器,设计出光强稳定的发光电路,低噪声前级,以及本底干扰对消电路,通过两级低通直接送至ti公司的超低功耗混合信号处理器msp430进行a / d变换得到原始的数字信号。
