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:
Apr. 03, 2012
Filed:
Apr. 11, 2006
Katsunori Kitagawa, Osaka, JP;
Katsunori Kitagawa, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a battery pack (), control means () reads identification information or operating state detection information out of identification information memory means () or battery operating state detection means () and inputs it to a modulation circuit (). The modulation circuit () modulates the information into an information signal which can be superimposed on a direct-current power transmission line and sends it to a charging device () or a loading device () through a positive charge and discharge terminal (). The charging device () or the loading device () demodulates the sent information signal to take out the identification information or the operating state detection information and allows power source control means () to control the output of charging energy from a charging power source () or the output of discharging energy to a load (). Thus, in addition to the transmission of direct-current power, information can be transmitted only by the connection of two positive and negative terminals.