Patent ID: 7652608

Claim:
A high-speed signal processor which functions as a waveform acquisition system and a high-speed analog-to-digital converter, said processor comprising: a filter system, comprising an M-band filter bank including M-band analysis filters and M-band synthesis filters, for dividing a single input signal into a series of adjacent frequency bands or channels, wherein M-band filters in said M-band filter bank have a perfect reconstruction property, such that a sum of the cascaded responses of the M-band analysis filters followed by the M-band synthesis filters produces an overall flat amplitude response and group delay; a frequency down converter for down converting one or more of the adjacent frequency bands as they are output from said filter system, said frequency bands or channels being precisely aligned in time and phase; a digitizer for baseband sampling each frequency band output from said filter system; and a system for reconstructing the original input signal.