Patents by Inventor Yao-Chih Yeh

Yao-Chih Yeh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Network apparatus with secure IPSec mechanism and method for operating the same
    Patent number: 7451479
    Abstract: A network apparatus with secure IPSec mechanism and method for operating the same are disclosed. The network apparatus includes a VLAN, an MAC filter, an IP restriction unit and a static DHCP. The network apparatus provides physical separation between VPN and other untrustful network before a message is sent to an IPSec channel. Therefore, the IPSec channel can be securely accessed. The network apparatus is applicable for both household network and VPN.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: November 11, 2008
    Assignee: Zyxel Communications Corporation
    Inventors: Yao-Chih Yeh, Yuan-Yu Cheng, Hsin-Hao Cheng, Chia-Yuan Chen
  • Network apparatus with secure IPSec mechanism and method for operating the same
    Publication number: 20060195900
    Abstract: A network apparatus with secure IPSec mechanism and method for operating the same are disclosed. The network apparatus includes a VLAN, an MAC filter, an IP restriction unit and a static DHCP. The network apparatus provides physical separation between VPN and other untrustful network before a message is sent to an IPSec channel. Therefore, the IPSec channel can be securely accessed. The network apparatus is applicable for both household network and VPN.
    Type: Application
    Filed: February 28, 2005
    Publication date: August 31, 2006
    Inventors: Yao-Chih Yeh, Yuan-Yu Cheng, Hsin-Hao Cheng, Chia-Yuan Chen