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:
Oct. 30, 2007
Filed:
Aug. 03, 2005
Gregory A. Blum, Lagrangeville, NY (US);
Gregory A. Blum, Lagrangeville, NY (US);
Seiko Epson Corporation, Tokyo, JP;
Abstract
A method, circuit, and/or system for controlling an amplitude and/or limiting or reducing the energy consumed by an LC voltage controlled oscillator (LCVCO). In one embodiment, an oscillator can include: (i) a bias circuit that can provide first and second bias signals; (ii) an oscillator core that can provide a periodic signal with a frequency related to the first bias signal and an amplitude, where the oscillator core can also provide a feedback signal; and (iii) a current/amplitude controller that can control the amplitude by dynamically dusting the first bias signal in response to the feedback signal. Embodiments of the present invention can advantageously provide a reliable and simplified design approach for amplitude control and substantial energy reduction in an oscillator, such as an LCVCO circuit or a Colpitts differential oscillator.