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, 1995
Filed:
Mar. 22, 1993
Ghassan R Gebara, Spring, TX (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
A method of and apparatus for limiting the output voltage of a voltage controlled oscillator in a phase-locked loop circuit to a frequency below the maximum input frequency of a divider stage in the phase-locked loop circuit. That frequency is limited by limiting the input voltage of the voltage control oscillator to a voltage less than the maximum allowable input voltage. Thus, the free running frequency of the voltage control oscillator is reduced proportionately to the amount the voltage is limited below its maximum voltage. The voltage is limited by connecting a Zener diode between ground and the output of a low pass filter that provides a voltage to the voltage controlled oscillator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile