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:
Dec. 02, 1997
Filed:
Oct. 09, 1996
Applicant:
Inventor:
Andreas Hennig, Garbsen, DE;
Assignee:
ke Kommunikations-Elektronik GmbH & Co., Hanover, DE;
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03B / ; H03B / ;
U.S. Cl.
CPC ...
331 76 ; 331158 ; 3311 / ; 327122 ;
Abstract
A circuit arrangement is indicated to generate a clock frequency for a data transmission system by using a voltage-controlled fundamental wave quartz oscillator (VCXO), whose frequency can be changed within narrow limits as a function of the control voltage. To double the frequency of the fundamental wave quartz oscillator (VCXO), its output (A) is connected to the input of a rectifier bridge circuit (1) having an ohmic resistance (2) placed at its output. The ohmic resistance (2) is connected to both inputs of a comparator (3), and the clock frequency (f) is present at the output of the comparator.