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. 18, 2008
Filed:
Oct. 07, 2004
Harald Reiter, Aachen, DE;
Andras Montvay, Stuttgart, DE;
Josef Lauter, Geilenkirchen, DE;
Olaf Such, Aachen, DE;
Ralf Schmidt, Aachen, DE;
Harald Reiter, Aachen, DE;
Andras Montvay, Stuttgart, DE;
Josef Lauter, Geilenkirchen, DE;
Olaf Such, Aachen, DE;
Ralf Schmidt, Aachen, DE;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
A device to carry out a bioelectrical interaction with an individual by means of electrodeswhereby an on-demand verification of the integrity of the electrical contact of the electrodes is implemented. The devicecomprises a control unitarranged to determine an occurrence of the predefined event related to a quality of a measured signal. In case the predetermined event is detected, the control unitactuates the testing means. The testing means is arranged to generate the test signals, Iand to apply them via a coupling circuitto the electrodes. In case it is desired that cumulative information about the contact integrity is obtained, is it sufficient to apply a single test signal per electrode. In case it is required to determine which of the electrodes has lost its contact, a sequence of test signals is generated by the sequencer. The response signal from the electrodesis forwarded to the input filter, which is preferably also used for a normal signal analysis. The signal from the input filteris directed via the input impedanceto the input amplifier. The amplified response signal is forwarded to the signal processing meanswhich is arranged to analyze the response signal. Preferably, an amplitude analysis is done. The signal from the signal processing meansis supplied to the analog-to-digital converter (ADC)after which a digital processing of the response signal is carried out by means of a further processing unit. In case the further processing unitdetermines that the integrity of the contact is below the allowable level, the lead-off indicatoris actuated.