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:
Jun. 10, 2003
Filed:
May. 29, 2001
Sergiu Silvian, La Crescenta, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
A telemetry system for use in an implantable device that communicates with an external programmer, includes a coil, a timing circuit connected to the coil, and a coil driver circuit that reverts at least part of the expanded energy back to the power source. The timing circuit generates two control signals SC and SC , and is comprised of four switches S , S , S , S that are connected across the power source and the coil, and that are selectively energized by the control signals SC and SC . The control signal SC energizes switches S and S to close, with the switches S and S open, causing the coil to become a load across the power source and to store energy therefrom. Upon the expiration of the control signal SC , the control signal SC triggers switches S and S to close with the switches S and S open, causing the coil to discharge the stored energy through the power source, charging it.