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. 10, 2006
Filed:
Nov. 21, 2003
Sang Ho Park, Changwon-si, KR;
Sang Ho Park, Changwon-si, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A laundry drier and control method thereof are provided, by which a new reference voltage is set to perform a next drying procedure if, upon a determination of a completion of a current drying procedure, there is a difference between a voltage representing a sensed level of water content (moisture) present in laundry and a sensed-moisture value at the end of the drying procedure, thereby compensating for the presence of contamination on and around the electrodes of a moisture sensor. The laundry drier includes a heater for performing a drying procedure; a moisture sensor for sensing a level of moisture in laundry during the drying procedure and outputting a voltage signal; a memory for storing a reference voltage value and a voltage value according to the sensed moisture level; and a microcomputer for controlling the heater based on the voltage signal output of the moisture sensor. The control method includes steps of driving a heater for a first predetermined time of a drying procedure; sensing a level of moisture in laundry after the first predetermined time has elapsed; storing in a memory a reference voltage value and a first value corresponding to the sensed moisture level; comparing the stored values, to determine a completion of the drying procedure; obtaining a second value corresponding to the sensed moisture level by driving the heater for a second predetermined time after the completion of the drying procedure; and compensating for an error in the sensed moisture level by resetting the reference voltage value according to a comparison of the first and second values.