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:
Jul. 25, 1989
Filed:
Apr. 27, 1988
Laszlo J Dobos, Beaverton, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
A voltage controlled oscillator with temperature compensation and reduced trigger jitter. The temperature compensation is improved by applying an on-chip generated temperature-dependent control voltage to first and second parallel oscillator stages through which the oscillation signal passes. The second stage has a greater signal propagation delay than the first stage. The control voltage determines the signal delay contributed by each stage to the oscillating signal, decreasing the delay in response to a temperature-induced decrease in oscillator frequency and increasing the delay in response to a temperature-induced increase in frequency. The oscillator also includes means for generating oscillations from a predetermined signal phase that is independent of the oscillator phase before triggering.