Low cost detection technique,申请号US20010786873-传众专利搜索

Low cost detection technique

申请公布号：US6768294(B1)

申请号：US20010786873

申请日期：2001.03.12

申请公布日期：2004.07.27

申请人：

VISONIC LTD.

发明人：MOLDAVSKY MARK;ZHEVRLEV BORIS

分类号：G01D5/248;(IPC1-7):G01R23/02

主分类号：G01D5/248

摘要：This invention discloses circuitry for signal measurement including a signal input, a microprocessor, and an oscillator, the oscillator being operable to generate a pulse signal, the frequency of which is a function of amplitude of a first signal received at the signal input, and to supply the pulse signal to the microprocessor, and the microprocessor being operable to measure the frequency of the pulse signal by comparing the pulse signal with a timing signal, thereby providing an indication of the amplitude of the first signal.