公开(公告)号：US06963626B1

公开(公告)日：2005-11-08

申请号：US09310598

申请日：1999-05-12

申请人： K. Derek Shaeffer ,  Theresa H. Meng ,  Thomas H. Lee ,  Sydney Reader

发明人： K. Derek Shaeffer ,  Theresa H. Meng ,  Thomas H. Lee ,  Sydney Reader

IPC分类号： H04B1/04 ,  H04B1/10 ,  H04B1/30

CPC分类号： H04B1/0475 ,  H04B1/30

摘要： A communication system uses analog and digital circuits along the same data path in a manner that permits the analog circuitry to avoid adverse affects caused by the digital circuitry. Consistent with one embodiment directed to a signal processing system that detects faint incoming signals, the analog and digital circuits are implemented on a single piece of silicon. In such signal processing systems, noise generated by digital processing blocks can degrade the performance of sensitive analog portions. The effective noise is reduced by causing the analog and digital portions of the system to function during separate time intervals. The noise-generating portions of the system may then be turned off during a first data-communication interval while the analog block operates. The data acquired during this period is stored for subsequent processing by the digital portion during a second shorter data-communication interval. Other aspects are applicable to reception arrangements in which part of the incoming signal may be disregarded without significant degradation in performance of the rest of the system, and other aspects are directed to transmission arrangements in which the inverse of the above reception arrangement is used.

摘要翻译： 通信系统以允许模拟电路避免由数字电路引起的不利影响的方式沿同一数据路径使用模拟和数字电路。 与针对检测微弱输入信号的信号处理系统的一个实施例一致，模拟和数字电路在单片硅片上实现。 在这种信号处理系统中，由数字处理块产生的噪声可能降低敏感模拟部分的性能。 通过使系统的模拟和数字部分在分开的时间间隔内起作用，降低了有效噪声。 然后可以在模拟块操作期间的第一数据通信间隔期间关闭系统的噪声产生部分。 在该时段期间获取的数据被存储用于在第二较短的数据通信间隔期间由数字部分进行后续处理。 其他方面适用于其中输入信号的一部分可以被忽略而不会使系统的其余部分的性能显着降低的接收装置，并且其它方面涉及使用上述接收装置的反向的传输布置。