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. 04, 2012
Filed:
Apr. 25, 2008
Nobuki Hashiguchi, Shiga, JP;
Shigemitsu Mizukawa, Shiga, JP;
Nobuki Hashiguchi, Shiga, JP;
Shigemitsu Mizukawa, Shiga, JP;
Ishida Co., Ltd., Kyoto, JP;
Abstract
It is an object of the present invention to provide a technique relating to an electronic shelf label system that is capable of suppressing malfunction of an electronic shelf label caused by the increase of internal resistance of a battery. In order to achieve this object, in an electronic shelf label system of the present invention, an electronic shelf labelincludes a batteryfor supplying power of this electronic shelf label, a to-be-charged partto be charged by power supplied from the battery, a light emission partfor sending data to a distribution device by using power accumulated in the to-be-charged part, and a boost circuitand a control circuitfor controlling power supplied from the batteryto the to-be-charged part. In the electronic shelf label, on receipt of change notification data from the distribution device, a charge operation mode of this electronic shelf labelis changed from a normal charge mode to a long-term charge mode in which the to-be-charged partis charged in a period of time longer than that in the normal charge mode. Power supplied from the batteryto the to-be-charged partis lower in the long-term charge mode than in the normal charge mode.