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:
Jul. 24, 1990
Filed:
May. 19, 1988
Applicant:
Inventors:
Peder C Pedersen, Holden, MA (US);
Thomas J Green, Jr, Woburn, MA (US);
Assignee:
Worcester Polytechnic Institute, Worcester, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03K / ;
U.S. Cl.
CPC ...
328 14 ; 328181 ; 328 27 ; 307228 ; 307271 ; 307529 ;
Abstract
A digital sweep generator includes a counter which receives a clock signal to generate a frequency output and an accumulator which sums the outputs of the counter at each clock. The value held by the accumulator is a quadratic function of time which is used as a phase representation to address a wave generator PROM. The PROM may be selectively coupled to different ranges of accumulator output to set the sweep rate.