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:
Jun. 11, 1996
Filed:
Aug. 04, 1993
Satoshi Iwatsu, Kanagawa, JP;
Kazunori Ozawa, Kanagawa, JP;
Masana Ugaji, Tokyo, JP;
Yoshio Nishi, Kanagawa, JP;
Yasuhito Eguchi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery unit of a cartridge type for use as a power supply for electric motorcars, broadcasting apparatus and the like comprises a battery, a monitoring unit for monitoring the condition of the battery and storing information about the battery, a display for displaying data obtained by the monitoring unit, an I/O unit for sending out data representing the condition of the battery monitored by the monitoring unit to an external device, and a battery identification output unit for sending out a battery identification signal representing the type of the battery. The monitoring unit comprises a voltage measuring unit for measuring the supply voltage of the battery, a current measuring unit for measuring the current supplied from the battery, a temperature sensor for sensing the temperature of the battery, and a clock for indicating passage of time. The monitoring unit determines the quantity of residual electrical energy remaining in the battery when replacing the battery with a fully charged battery.