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:
Jan. 04, 2000
Filed:
Aug. 01, 1998
Vaishali Nikhade, Irvine, CA (US);
Khosrow Sadeghi, Irvine, CA (US);
ADMTEK Incorporated, Hsinchu, TW;
Abstract
The present invention provides a reliable method for oscillating an oscillator having an oscillator output without fail. The method includes steps of detecting whether the oscillator is regularly oscillating, and releasing the oscillator to oscillate when the oscillator is regularly oscillating, and holding the oscillator from oscillating until an enough control voltage is built-up therefor when the oscillator is not regularly oscillating. The present invention also provides a start up circuit for an oscillator having an oscillator output having a first state in a first instance and a second state in a second instance. The start up circuit includes a detecting device which includes a first input end for inputting therethrough the oscillator output, and a detecting output having a third state in a third instance and a fourth state in a fourth instance such that when the detecting output is in the third state, the oscillator is in a first work mode, and when the detecting output is in the fourth state, the oscillator is in a second work mode.