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:
Nov. 26, 2002
Filed:
Sep. 25, 1998
Kouji Tanonaka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An SDH transmission unit which processes various classes of digital bitstreams regardless of their levels of the SDH multiplexing hierarchy, harmonizing the signal formats handled in its integral cross-connect facilities. High-order group transmission units are installed in their dedicated high-order group slots on a mounting rack, and through the wiring on a backplane, they are connected to high-order group ports of a cross-connect unit installed in the same rack. Similarly, low-order group transmission units are installed in dedicated low-order group slots on the mounting rack, and connected to low-order group ports of the cross-connect unit through the backplane. Both high-order and low-order group transmission units are designed to send and receive multiplexed signals at a predetermined level of the SDH multiplexing hierarchy. Because of this harmonized signal format, the high-order and low-order group transmission units seamlessly interface with the cross-connect unit, no matter what level of multiplexed signals they process in their internal activities.