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:
Sep. 13, 2005
Filed:
Feb. 04, 2004
Antoni Ferre Fabregas, Valls, ES;
Alberto Garcia Briz, Valls, ES;
Joan Fontanilles Pinas, Valls, ES;
Jordi Mestre Gausch, Valls, ES;
Rudolf Diemer, Alsheim, DE;
Stefan Jost, Valls, ES;
Antoni Ferre Fabregas, Valls, ES;
Alberto Garcia Briz, Valls, ES;
Joan Fontanilles Pinas, Valls, ES;
Jordi Mestre Gausch, Valls, ES;
Rudolf Diemer, Alsheim, DE;
Stefan Jost, Valls, ES;
Lear Corporation, Southfield, MI (US);
Abstract
Disclosed is a method particularly applicable to an automotive vehicle seat, through which the control of heating of heating elements is carried out by an electronic circuit, based on the temperature monitored in the heating elements and using Pulse Width Modulation (PWM). The signals applied to the heating elements are progressively adapted to the condition of the different heating elements at all times and throughout their useful life, by variation of the working cycle of the signal applied to the heating elements in the form of a fixed frequency pulse train, and applying said signal after an initial transient state, during which state a maximum voltage has been applied to the heating elements and has been maintained until reaching a desired percentage of an assigned temperature by each of said heating elements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile