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:
Jul. 17, 2007
Filed:
May. 16, 2005
Applicants:
Peter John Lagergren, Glen Rose, TX (US);
Steven Scott Kazemir, Port Coquitlam, CA;
Inventors:
Peter John Lagergren, Glen Rose, TX (US);
Steven Scott Kazemir, Port Coquitlam, CA;
Assignee:
Xtero Datacom Inc., North Vancouver, British Columbia, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention describes the use of an electrical pulse that is a single square wave to excite a piezoelectric crystal. This pulse is applied alternately to either side of the crystal at twice the nominal resonant frequency of the crystal. This method provides a significant increase in net drive power to the crystal without the need to provide a sine wave excitation of plus and minus voltage to the crystal.