Andrew L Sharp

US Patent:

7689260, Mar 30, 2010

Filed:

Nov 8, 2004

Appl. No.:

10/577962

Inventors:

Dudley Finch - Boulder CO, US
Kenneth Gall - Boulder CO, US
Andrew Sharp - Boulder CO, US
Diego Restrepo - Boulder CO, US

Assignee:

The Regents of the University of Colorado - Boulder CO

International Classification:

A61B 5/04
A61N 1/05

US Classification:

600378, 607116

Abstract:

There is provided a slowly implantable electrode. A coating for an electrode, the coating includes a shape-memory polymer. A method for inserting an electrode into brain tissue by inserting an implantable electrode having a shape-memory polymer coated electrode into brain tissue.

US Patent:

7956572, Jun 7, 2011

Filed:

Oct 23, 2006

Appl. No.:

12/091025

Inventors:

Regan Zane - Superior CO, US
Zoya Popovic - Boulder CO, US
Andrew Sharp - Makanda IL, US
Diego Restrepo - Littleton CO, US

Assignee:

The Regents of the University of Colorado, a body corporate - Denver CO

International Classification:

H02J 7/00
H01Q 9/00

US Classification:

320108, 343751

Abstract:

Exemplary systems and methods are provided for collecting/harvesting direct current (DC) power received from a power source(s). The system comprises a controlled impedance power controller comprises a power converter configured to present a positive equivalent resistive load to the at least one power source over a range of input power levels. Exemplary systems and methods are provided for collecting radio frequency (RF) power. An exemplary system comprises at least two rectenna elements, a power controller, and a DC combining circuit. The DC combining circuit is associated with the at least two rectenna elements and the DC combining circuit is configured to dynamically combine the at least two rectenna elements in one of a plurality of series/parallel configurations. The power controller is configured to control the DC combining circuit to achieve a desired overall power output from the at least two rectenna elements.