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:
Mar. 01, 2005
Filed:
Feb. 11, 2002
Applicants:
Wen-jen Wu, Taipei, TW;
Wen-hwa Chou, Taipei, TW;
Inventors:
Wen-Jen Wu, Taipei, TW;
Wen-Hwa Chou, Taipei, TW;
Assignee:
Prolific Technology, Inc., , TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F013/00 ;
U.S. Cl.
CPC ...
Abstract
A Universal Serial Bus (USB) compound device and the method for implementation thereof are disclosed. The USB compound device does not include an embedded hub but simulates a hub by a circuit or firmware. Therefore, a set of independent function devices are able to connect to a USB bus via the same set of USB logic, and the production cost can be reduced without affecting the function of the device and the facility of expansion and plug-and-play function.