Patent ID: 8452544
Filing Date: 2013-05-28
Classification: A61B,H03F,H03H

Abstract:
1. A method to temporally advance the detection and characterization of analog data, comprising the steps of: interfacing an analog data detector with a signal advance means comprising a negative group delay (NGD) circuit means having a NGD signal output means for producing temporally advanced raw indicia of analog data received by said analog data detection means; determining analog wave form characteristics of said analog data, said analog wave form characteristics comprising a range of frequencies, pulse widths, pulse shape and phase slope relative to said frequency range; determining a response based on said wave form characteristics and duration of the temporally advanced raw indicia of the analog data received; said NGD signal output means interfaced with signal filtering and reconstruction means for producing corrected indicia that more accurately represent said analog data detected by said analog data detection means than said temporally advanced raw indicia; wherein the gain, the duration of temporal advance or both the gain and duration of temporal advance of said corrected indicia, is/are relatively constant over a specified frequency spectrum for signals with a wide spectral range.