WO/2004/015431 is referenced by 1 patents.

A low cost, low power and lightweight swept sine wave analysis system that is affordable to engineers, university laboratories and students, providing accurate magnitude and phase response measurements over a wide bandwidth is described. An analog mixer (12, 16) mixes a local oscillator signal (41) with an amplified input signal (44, 45) allowing AC signal coupling between input stages. This minimizes errors due to DC and low frequency drift. A computer graphical interface is used for controlling the acquisition hardware in real time, displaying results on the computer screen, and making the graphical results and numerical results immediately available for inclusion in documentation or spreadsheet applications.

Title
Stepped sine wave frequency response measurement system
Application Number
PCT/US2003/025485
Publication Number
2004/015431
Application Date
August 13, 2003
Publication Date
February 19, 2004
Inventor
Iannuzzi John F
Agent
SIMPSON Mark D
Assignee
Iannuzzi John F
IPC
G01R 27/28
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