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:
Jul. 09, 2013
Filed:
Apr. 09, 2010
Benjamin Yeh, Taipei, TW;
Yen-ju Hsu, Palo Alto, CA (US);
Shao-hai Zhao, Jiangsu, CN;
Tai-wei Wang, Taipei, TW;
Benjamin Yeh, Taipei, TW;
Yen-Ju Hsu, Palo Alto, CA (US);
Shao-Hai Zhao, Jiangsu, CN;
Tai-Wei Wang, Taipei, TW;
Sercomm Corporation, Taipei, TW;
Abstract
The access method includes the following steps. Firstly, multimedia data is accessed with a multimedia access device located on a local network, which connected to a public network via a network address translation (NAT) or firewall device. Next, first communication link between a portal server and the multimedia access device is established. Then a piece of punch-through information indicating whether the multimedia access device can punch through the NAT/firewall device is obtained in response to an inquiry command provided by a client device. Next, when the multimedia access device cannot punch through the NAT/firewall device, the multimedia data is pushed from the multimedia access device to the portal server and the multimedia data pushed to the portal server is further pulled from the portal server to the client device, so that multimedia data transmission between the client device and the multimedia access device can be obtained.