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. 09, 1976
Filed:
Sep. 20, 1974
Minoru Arai, Tokyo, JA;
Iwatsu Electric Co., Ltd., Tokyo, JA;
Abstract
A frequency conversion system for converting high to low frequencies. The system comprises a first frequency dividing means for frequency dividing the frequency of an input signal into 1/MN of the same, a voltage controlled oscillator, a second frequency dividing means for frequency dividing the output frequency of the voltage controlled oscillator into 1/(N + 1) of the same, a phase detector for controlling the voltage controlled oscillator such that the frequencies of the respective outputs of the first and second frequency dividing means are equal to one another, and means for sampling the input signal by using the output frequency of the voltage controlled oscillator to lower the frequency of the input signal to 1/N thereof.