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:
Feb. 08, 2005
Filed:
Aug. 29, 2002
Applicants:
Christopher M. Toliver, West Newton, MA (US);
Stephen T. English, Billerica, MA (US);
Eric G. Nestler, Harvard, MA (US);
Inventors:
Christopher M. Toliver, West Newton, MA (US);
Stephen T. English, Billerica, MA (US);
Eric G. Nestler, Harvard, MA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K003/0231 ;
U.S. Cl.
CPC ...
Abstract
An oscillator includes a comparator and a variable voltage element. The comparator has a first input set to a reference voltage, a second input, and an output configured to produce an output voltage as a function of the voltages at the first and second inputs. The variable voltage element delivers to the second input a second voltage that is a function of a switched current. The switched current is a function of the reference voltage.