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:
Apr. 12, 2005
Filed:
Feb. 29, 2000
Koji Hirayama, Chigasaki, JP;
Haruo Shibata, Yokohama, JP;
Akio Kawase, Yokohama, JP;
Shinichi Iwaki, Kamakura, JP;
Koji Hirayama, Chigasaki, JP;
Haruo Shibata, Yokohama, JP;
Akio Kawase, Yokohama, JP;
Shinichi Iwaki, Kamakura, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Communication Systems, Inc., Yokohama, JP;
Abstract
A switching system for realizing integration of existing communication networks or interconnections thereof, and a switching control method. After a call is originated from an ATM communication networkto an STM communication network, an ATMIFthat has received a connection request signal (control signal) converts the control signal into a format of an ATM cell, adds a header destined to one of SIG-to n for processing control signals, and then output the same. An ATMSWperforms self-routing based on header information. The selected one of the SIG-to n performs conversion for the ATM cellby a specified protocol, makes an ATM cellhaving a header destined to one of CLP-to k for processing control signals, and then output the same. Upon having received the ATM cell, the CLPlinks up with other processors to perform call connection control, functions having been dispersed among the other processors.