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:
Nov. 27, 2001
Filed:
Jul. 26, 2000
Min-Su Park, Seoul, KR;
Il Sung International Co., Ltd., Kwangju-Gun, KR;
Abstract
A speaker system for personal computers is disclosed. The speaker system has at least one speaker used for amplifying audio signals to predetermined levels and stereophonically dividing the amplified audio signals, and outputting sounds having an audio frequency. A power supply unit supplies electric power for the speaker while converting and rectifying an input AC voltage into a desired level of DC voltage. A speaker power switch is provided on the cabinet of the speaker for turning on or off the electric power for the speaker or for controlling output sound volume of the speaker. A drive fan is installed within the speaker and is rotated at a predetermined rpm when the speaker is turned on. This drive fan thus generates sucking force for forcibly sucking atmospheric air into the speaker. An anionizer is mounted on a printed circuit board within the speaker and generates anions from its anionizing plate, which consists of an anode plate and a cathode plate individually generating a high voltage. An anionizer power switch is provided on the speaker for turning on or off the anionizer. An air filter is installed around the drive fan within the speaker so as to filter off impurities from sucked atmospheric air.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile