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:
Sep. 08, 1998
Filed:
Apr. 03, 1996
Masahiro Shinbashi, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
In an add/drop multiplexing apparatus, a fixed length cell such as an ATM cell can be handled in addition to the existing data services. The add/drop multiplexing apparatus for supporting a fixed length cell is comprised of: an input unit for inputting multiplexed signals transmitted over a transmission path; a cross-connect unit for deriving a preset time slot signal from the multiplexed signals inputted by the input unit; and a tributary interface unit for converting the signal derived by the cross-connect unit into a signal having such a format corresponding to a low-ordered communication network. The tributary interface unit converts a fixed length cell received from the low-ordered communication network into a signal format processable by the cross-connect unit, and also converts the signal outputted from the cross-connect unit into a fixed length cell so as to be transmitted to the low-ordered communication network.