The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2005
Filed:
Apr. 07, 2004
Ronald F. Mathis, Ramona, CA (US);
Stephen R. Mathis, Menifee, CA (US);
Paul N. Huntley, Poway, CA (US);
James A. Crawford, San Diego, CA (US);
Barry L. Dorr, Carlsbad, CA (US);
William L. Floyd, Temecula, CA (US);
Ronald F. Mathis, Ramona, CA (US);
Stephen R. Mathis, Menifee, CA (US);
Paul N. Huntley, Poway, CA (US);
James A. Crawford, San Diego, CA (US);
Barry L. Dorr, Carlsbad, CA (US);
William L. Floyd, Temecula, CA (US);
Photon Products, Inc., Murrieta, CA (US);
Abstract
A waveform acquisition system that captures and digitizes a wideband electrical signal through a bank of front end filters, frequency down converters, and conventional digitizers (A/D converters). A software algorithm reconstructs the composite input signal and applies the necessary corrections to remove the effects of hardware impairments. This approach is possible because it uses a class of filters that exhibit the quality of perfect waveform reconstruction, allowing signals whose spectral components overlap multiple filter bands, to be faithfully reconstructed. A calibration generator switched into the input port serves as a reference for quantifying and removing hardware errors. The channelized analog-to-digital converter (ADC) effectively multiplies the bandwidth and sampling rate of the conventional digitizer performance in a single channel by the number of channels in the system.