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:
Jan. 01, 2008
Filed:
Jan. 16, 2004
Keisuke Takeuchi, Kunitachi, JP;
Hidenori Inouchi, Higashimurayama, JP;
Yukiko Takeda, Tokorozawa, JP;
Katsunori Takahashi, Yokohama, JP;
Keisuke Takeuchi, Kunitachi, JP;
Hidenori Inouchi, Higashimurayama, JP;
Yukiko Takeda, Tokorozawa, JP;
Katsunori Takahashi, Yokohama, JP;
Hitachi Communications Technologies, Ltd., Tokyo, JP;
Abstract
Disclosed is a packet-switched communication apparatus (DNS proxy server) receiving and forwarding messages which are used to obtain an address corresponding to a domain name assigned to a device connected to a network from the domain name and to obtain such a domain name from the address. The communication apparatus comprises mapping retaining means for retaining mappings between network-dependent parts of addresses which are used in a first network and address translators; address translator selecting means for selecting an address translators, based on an address included in a received packet; address obtaining means for obtaining a substitutive address to replace the address included in the received packet from the selected address translator; and address replacement means for replacing the address included in the received packet by using the obtained substitutive address.