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:
Jan. 15, 2013
Filed:
Apr. 25, 2007
James F. Bausch, Salem, OR (US);
George Vernon, Wancouver, WA (US);
Aleksandr Gridasov, Vancouver, WA (US);
James F. Bausch, Salem, OR (US);
George Vernon, Wancouver, WA (US);
Aleksandr Gridasov, Vancouver, WA (US);
International Rehabilitative Sciences, Inc., Vancouver, WA (US);
Abstract
A load detecting circuit has a primary side and a secondary side with a secondary side patient load impedance input having a patient-side opto-isolator and a secondary side reference resistance load input having a reference-side opto-isolator coupled to the secondary side patient load impedance input. The circuit also includes at least one primary side output resistor, wherein the patient-side opto-isolator and the reference-side opto-isolator drive the at least one primary side output resistor and an integrator for operatively controlling the secondary side and conveying the patient load input and the reference load input to the primary side, where the patient load input and the reference load input are powered by a secondary side transformer winding.