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:
Jun. 04, 2013
Filed:
Jan. 19, 2012
Johnny Chen, Santa Ana, CA (US);
Ping-shun Zeung, Santa Ana, CA (US);
Johnny Chen, Santa Ana, CA (US);
Ping-Shun Zeung, Santa Ana, CA (US);
I/O Interconnect Inc., Nangang Dist., Taipei, TW;
Abstract
A USB peripheral device with a power connector, such as a card reader, which serves as a peripheral device when it is connected to a host device such as a smart phone, while which can directly charge the host device when a charger is plugged in, is disclosed. The peripheral device has a USB connector and a controller. The ID, D+, D− and VBUS pins of the USB connector are connected to the controller and the power connector through a plurality of relays depending upon whether the power connector is connected by a charger or not. The peripheral device can be automatically switched to serve as a B-device or a power bridge transferring power from the charger to the host device.