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. 12, 1999
Filed:
Jul. 24, 1996
Kyeong Soo Kim, Daejeon, KR;
Hyup Jong Kim, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Korea Telecommunication Authority, Seoul, KR;
Abstract
A fully-interconnected ATM switching apparatus comprising a plurality of line interface circuits, each of the line interface circuits including an input port driver for extracting an SDH transmission frame containing cell data with a fixed length and a connection identifier from an input signal, appending a routing tag to the extracted SDH transmission frame and outputting the resultant SDH transmission frame through an input dedicated bus and an output port driver for receiving a cell stream from an output dedicated bus, removing the routing tag from the received cell stream, translating a channel identifier in the connection identifier and transferring the resultant SDH transmission frame to an adjacent node, a system clock distributor for generating a clock signal, an initialization controller for controlling system initialization and restart operations, a switch maintenance controller for performing a switch maintenance control operation in response to a network managing cell, a switch call processing controller for performing a call processing operation, a switch module controller for controlling a switching operation, and a plurality of switch output multiplexers for switching cells from the input port drivers to the output port drivers under the control of the switch module controller.