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. 06, 2006
Filed:
Jan. 09, 2002
Shirou Tanabe, Hachioji, JP;
Taihei Suzuki, Kodaira, JP;
Shinobu Gohara, Yokohama, JP;
Yoshito Sakurai, Yokohama, JP;
Kenichi Ohtsuki, Kanagawa-ken, JP;
Takao Kato, Yokohama, JP;
Hiroshi Kuwahara, Kodaira, JP;
Eiichi Amada, Tokyo, JP;
Shirou Tanabe, Hachioji, JP;
Taihei Suzuki, Kodaira, JP;
Shinobu Gohara, Yokohama, JP;
Yoshito Sakurai, Yokohama, JP;
Kenichi Ohtsuki, Kanagawa-ken, JP;
Takao Kato, Yokohama, JP;
Hiroshi Kuwahara, Kodaira, JP;
Eiichi Amada, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A packet switching system including at least one switching node or local unit each including a label conversion unit for accommodating a plurality of packet circuits and performing conversion into output port information of a switch based on a logic channel on a packet circuit, a self-routing switch for performing switching based on the output port information, and a control unit for terminating a control packet and performing the call processing function. A switching node or tandem unit is provided including at least one self-routing switch for interconnecting the local units. A device is provided for setting, between the tandem unit and a destination-side local unit, the same logic channel as that between an originating-side local unit operative for information transfer and the tandem unit in respect of a call destined for a local unit other than this local unit and a device.