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. 03, 2001
Filed:
May. 14, 1998
Woo-Shik Kang, Suwon, KR;
Er-Ping Zhang, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
An optical switching network has: N input couplers each having a cell input port and a recursive input port, N output couplers each having a cell output port and a recursive output port, N/2 switch couplers connected between the input couplers and the output couplers, and a controller having a routing table, for generating control signals for the respective input, output, and switch couplers upon input of cells. The optical switching network has a single-stage optical recursive loop in which an x-numbered recursive output port is connected to a 2x-numbered recursive input port if 0≦x<N/2, and the x-numbered recursive output port is connected to a (2x−N+1)-numbered recursive input port if N/2≦x<N. The N input couplers receive the cells via the cell input ports upon input of the cells, the N/2 switch couplers recursively switch the cells log,N-times by connecting the recursive output ports to the corresponding recursive input ports during circulations, and the N output couplers output the cells via the cell output ports at the termination of switching.