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.

Date of Patent:
Dec. 27, 2011

Filed:

Dec. 29, 2009
Applicants:

Mou-ming MA, Taipei, TW;

Li-chih Hsieh, Taipei, TW;

Min-yu Chou, Taipei, TW;

Yih-neng Lin, Taipei, TW;

Chun-kun Lan, Taipei, TW;

Cheng-hao Huang, Taipei, TW;

Inventors:

Mou-Ming Ma, Taipei, TW;

Li-Chih Hsieh, Taipei, TW;

Min-Yu Chou, Taipei, TW;

Yih-Neng Lin, Taipei, TW;

Chun-Kun Lan, Taipei, TW;

Cheng-Hao Huang, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G06F 11/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multimedia system includes a portable device, a multimedia expansion apparatus and a second display. The portable device further includes a main body and a first display coupling with the main body, in which the main body has a first multimedia module and a switch module. The multimedia further includes an expansion port for coupling the portable device, a multimedia switch circuit, a plurality of signal output ports and a power control circuit for energizing the expansion port, the multimedia switch circuit and the signal output ports. The second display is coupled with one of the signal output ports. The switch module forwards a multimedia signal of the main body to one of the first multimedia module and the multimedia switch circuit, and the power control circuit is to terminate power output to while the portable device is separated from the expansion port of the multimedia expansion apparatus.


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