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. 09, 2001
Filed:
Apr. 09, 1998
Ji-Hwa Kim, Kumi-shi, KR;
Abstract
Apparatus for charging a portable terminal in a radio-telephone system which allows a telephone conversation to be conducted while the portable terminal is being charged. In one embodiment, the charging apparatus includes an alternating current (AC) adapter for converting an AC power source voltage into a predetermined AC voltage, a rectifying circuit disposed within the portable terminal for rectifying the AC voltage provided from the AC adapter and converting the AC voltage into a direct current (DC) voltage, a charging circuit disposed within the portable terminal for receiving the DC voltage output from the rectifying circuit and charging a battery of the portable terminal with the DC voltage, and a charging current control circuit for controlling the amount of charging current applied to the battery.