Inventors:
Michael Paul Atwell - Broadview Heights OH, US
Michael Paul Minneman - Broomfield CO, US
Elwood James Egerton - Longmont CO, US
Assignee:
DBM Optics, Incorporated - Lafayette CO
International Classification:
H04B 10/08
US Classification:
398 38, 398 33, 398202, 398208, 398214, 356226, 356229, 250214 A, 324115, 330129, 341139
Abstract:
Multiple stage ranging circuitry for a measuring circuit includes a first ranging circuit that selectively amplifies an input signal by respective amounts according to the magnitude of the input signal thereto, and a second ranging circuit coupled to the output of the first ranging circuit selectively amplifies the output signal from the first ranging circuit by a respective amount according to the magnitude of that output signal to provide a measured output. The multiple stage ranging circuitry increases dynamic range and provides for high speed measurements over that dynamic range. A method of ranging for high speed signal measurements over a wide dynamic range includes directing an input signal to a first ranging stage that responds at one speed to set ranging over a relatively wide variation in input signal magnitudes, and directing the output signal from the first ranging stage to a second ranging stage responsive at a second speed faster than the one speed to set ranging over a relatively narrower range of signal magnitudes to provide for signal measurement.