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:
Mar. 11, 1997
Filed:
Sep. 15, 1995
Robert W Hazard, Tewksbury, MA (US);
George A Bouchard, Arlington, MA (US);
Jeffrey E Carmella, Acton, MA (US);
Michael P DeMilia, Lancaster, MA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A system for obtaining digitized samples of an analog signal at a selectable rate, R. The system includes: a timing generator for producing a train of sampling pulses at a predetermined sampling rate, f.sub.s ; an analog to digital converter for producing a digitized sample of the analog signal in response to each one of the sampling pulses; a processor; and, a selector, for passing each Nth one of the digitized samples produced by the analog to digital converter, where N=f.sub.s /R to the processor. The selector includes a decimator, responsive to a signal, N=f.sub.s /R, representative of the ratio of the sampling rate, f.sub.s, to the digitized signal obtaining rate, R, for producing pulses at the rate, R=f.sub.s /N; and, a register for storing each Nth one of the digitized samples produced by the analog to digital converter, each one of such digitized samples being stored in response to a corresponding one of the pulses produced by the decimator. A radar system is provided wherein range cells signals of the video signals produced in response to a train of transmitted pulses are obtained at a rate, R, related to the range cell resolution selected by the radar system. An analog to digital conversion system is fed by the video signal. The analog to digital conversion system includes: a timing generator for producing a train of sampling pulses at a predetermined sampling rate, f.sub.s ; an analog to digital converter for producing a digitized samples of the analog signal in response to each one of the sapling pulses; and, a processor section for processing each Nth one of the digitized samples produced by the analog to digital converter.