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:
Feb. 14, 1984
Filed:
Dec. 18, 1980
Georg Heinle, Erlangen, DE;
Siemens Aktiengesellschaft, , DE;
Abstract
For generating a pulse train having a variable frequency, in a first step a referance frequency is divided by the combined factor D.sub.r =N.multidot.p, wherein N and p are integers. Thus, an auxiliary pulse train is obtained. In a next step, there are included (N-1) intermediate pulses having at least approximately the same distance from each other between adjacent pulses of the auxiliary pulse train. Thereby, in total a division of the reference frequency by the factor p is obtained. This method results in an improvement of the frequency resolution by the factor N.sup.2 with respect to a method where the reference frequency is directly divided by the factor p. A circuit arrangement for carrying out this method contains a frequency divider, which issues small output pulses having the period D.sub.r T.sub.o, and (N-1) triggerable pulse emitters or generators, each of which delivering one of the aforementioned intermediate pulses.