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. 23, 2003
Filed:
Jan. 09, 2002
W. S. Henrion, Austin, TX (US);
Cypress Semiconductor Corp., San Jose, CA (US);
Abstract
A circuit, method, and network are disclosed herein to implement a voltage-controlled LC oscillator. The oscillator is configured having an LC tank circuit which is modulated by an in-phase modulating voltage. The modulating voltage can have a phase angle and amplitude that is controlled. Depending on the values of those control signals, the oscillating voltage will either increase or decrease current within the LC tank circuit and, thereby, increase or decrease the oscillating voltage respectively. Any number of phases can be connected together to produce signals of dissimilar phase angles. Preferably, those signals have phase angles of 0°, 180°, or even fractions thereof if an external circuitry is applied to the oscillation network.