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:
Mar. 25, 2014
Filed:
Nov. 25, 2008
Norihito Mochida, Kanagawa, JP;
Yasuji Nakamura, Kanagawa, JP;
Masanori Oshimi, Kanagawa, JP;
Hirohiko Yoshida, Kanagawa, JP;
Akihiko Sekiguchi, Kanagawa, JP;
Eiji Machii, Kanagawa, JP;
Norihito Mochida, Kanagawa, JP;
Yasuji Nakamura, Kanagawa, JP;
Masanori Oshimi, Kanagawa, JP;
Hirohiko Yoshida, Kanagawa, JP;
Akihiko Sekiguchi, Kanagawa, JP;
Eiji Machii, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An object of the present invention is to provide an electronic device which is capable of conducting a proximity noncontact communication even if charging of a secondary battery is not fully completed and also whose secondary battery never falls into an overdischarge state during the proximity noncontact communication. An electronic device () employs a secondary battery (), which is rechargeable by a charger () that gives a charge of electricity in a noncontact manner, as a power source, and is capable of conducting a proximity noncontact communication with the charger (). The electronic device () repeats a charging process, in which this equipment charges the secondary battery () for a predetermined period (Tb) by receiving a supply of an electric power from the charger () via a noncontact power-receiving secondary coil (), and a communication process, in which this equipment conducts a data communication for a predetermined period (Ta) when a voltage of the secondary battery () at a time of charging start is below a predetermined value (Va), and also repeats a charging process, in which this equipment charges the secondary battery () for a predetermined period (Tb) by receiving a supply of the electric power from the charger () via the noncontact power-receiving secondary coil (), and a communication process, in which this equipment conducts the data communication for a predetermined period (Ta)(>Ta) when the voltage of the secondary battery () at a time of charging start is more than a predetermined value (Va).