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:
Apr. 29, 2008
Filed:
Apr. 22, 2003
Applicant:
Neil Morrow, San Jose, CA (US);
Inventor:
Neil Morrow, San Jose, CA (US);
Assignee:
O2Micro International Limited, Georgetown, Grand Cayman, KY;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 3/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
An enhanced power switch device is provided for enabling modular USB PC cards. The enhanced power switch may include a card sense circuit for sensing the type of card present, a card power switching circuit for supplying power to a modular USB card, and isolation circuit for isolating conventional PC Card control signals from the modular USB card and a connection circuit for connecting USB signals to the USB Card. The system of the present invention can modified for other bus technologies, in addition to USB bus devices.