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:
Oct. 09, 2001
Filed:
Apr. 13, 1999
Johannes J. Van Herk, Eindhoven, NL;
Nigel D. Young, Redhill, GB;
U.S. Philips Corporation, New York, NY (US);
Abstract
An electro-stimulation apparatus comprises an electrode system for measuring local electrical impedance. The electrode system includes a multitude of electrode pads and a counter electrode held at a reference voltage. The electrode pads and the counter electrode are assembled in an electrode unit. A particular embodiment of the electro-stimulation apparatus comprises an electronic circuit including a source group of electrode pads and a sink group of electrode pads and a source conductor for applying a first electrical quantity to electrode pads of the source group. The electronic circuit also includes a sink conductor for receiving a second electrical quantity from electrode pads of the sink group. Switching elements couple individual electrode pads of the source group to the source conductor. Other switching elements couple individual electrode pads of the sink group to the sink conductor.