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:
Dec. 26, 2006
Filed:
Nov. 27, 2000
Applicant:
Keiichiro Tsukamoto, Kawasaki, JP;
Inventor:
Keiichiro Tsukamoto, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
After a DS3 signal is terminated by the DS3 interface circuit, an ATM cell is extracted by an ATM cell extraction circuit from a signal input through a DS3 network after performing an ATM mapping process. The ATM cell is mapped in a SONET frame by an ATM cell/N.A. new synchronous SONET STS mapping unit, and is transmitted to a SONET. When an STS signal is input from the SONET, an STS frame is terminated in an STS demapping circuit. An ATM cell is extracted by an ATM cell extraction circuit, and is mapped in the DS3 signal and transmitted by an ATM cell/N.A. asynchronous DS3 mapping unit.