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:
Apr. 30, 1991
Filed:
Jul. 02, 1990
Applicant:
Inventor:
William J Howell, Chandler, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
3311 / ; 331167 ;
Abstract
A balanced oscillator circuit having first and second outputs includes a transistor circuit, having internal parasitic capacitors, for providing first and second output signals at the first and second outputs of the balanced oscillator circuit. An inductor circuit is coupled between the first and second outputs such that the inductor circuit and the internal parasitic capacitors determine the frequency of oscillation of the first and second output signals. The capacitance of the internal parasitic capacitors can be varied by an external voltage applied to the transistor circuit.