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:
Oct. 21, 1997
Filed:
Apr. 19, 1994
Applicant:
Inventor:
Stephen G Kaiser, Hoffman Estates, IL (US);
Assignee:
Northrop Grumman Corporation, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364721 ; 36472803 ;
Abstract
This invention synthesizes a continuous wave signal from a finite periodic complex signal waveform by digitizing the finite waveform, matching the phase of the digitized waveform at its recorded beginning (head) to its recorded end (tail) and then playing out the waveform over and over in a head-to-tail fashion. The quality of the 'phase match' between the waveform head and tail as well as the head-to-tail segment length determines the frequency accuracy of the synthesized continuous waveform. The basic formula ##EQU1## is used.