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:
Nov. 29, 2005
Filed:
May. 28, 2004
Eric T. Martin, Corvallis, OR (US);
Art Piehl, Corvallis, OR (US);
Adam Ghozeil, Corvallis, OR (US);
Eric T. Martin, Corvallis, OR (US);
Art Piehl, Corvallis, OR (US);
Adam Ghozeil, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A control circuit for a MEMS (Micro-Electro-Mechanical System) has a semiconductor switch which has a source, a drain and a gate, which is associated with a selected one of spatially arranged fixed and movable plates of a variable capacitor, and is arranged to selectively connect the selected one of the fixed and movable plates with a voltage source. A charge injection control circuit is associated with the semiconductor switch and attenuates current injection into the selected one of the fixed and movable plates of the capacitor.