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:
Sep. 19, 1989
Filed:
Nov. 19, 1987
Bar-Giora Goldberg, San Diego, CA (US);
Sciteq Electronics, Inc., San Diego, CA (US);
Abstract
An improvement in a frequency synthesizer having a generator which produces mix frequencies and at least one mix and filter stage, said stage having a frequency divider. The improvement comprising: (1) a frequency divider for producing a periodic signal the frequency of which is an integer divisor of the mix frequencies, (2) a one-shot for producing an enabling signal whenever a change occurs in the selection of the frequency being synthesized, the duration of the enabling signal being sufficient to ensure coincidence of it and said periodic signal, and (3) a coincidence gate for resetting the frequency divider of each mix and filter stage to a predetermined state whenever there is a coincidence of the enabling signal and the periodic signal.