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:
May. 17, 2005
Filed:
Apr. 22, 2003
Cheng Chun Chang, Taipei, TW;
Cheng Chun Chang, Taipei, TW;
Other;
Abstract
The present invention discloses a computer expansion device with a universal serial bus (USB) interface, comprising: a housing having an installation space; a circuit board, disposed in the housing and having a USB port and a power supply terminal; the USB port electrically coupled to a first USB interface signal IC by a circuit, and such IC being electrically coupled to three first connecting ends by circuits, and electrically coupled to a second USB interface signal IC by another circuit, and such IC being electrically coupled to four second connecting ends; wherein the three first connecting ends and a second connecting end selectively coupled to a peripheral device with a USB interface conversion function by an electric connection such that the USB interface signals are transmitted, and the rest of the three second connecting ends are respectively coupled to a USB interface socket.