EP 0968591 A1 20000105 - TELECOMMUNICATIONS SWITCH
Title (en)
TELECOMMUNICATIONS SWITCH
Title (de)
FERNMELDEVERMITTLUNGSSYSTEM
Title (fr)
COMMUTATEUR DE TELECOMMUNICATION
Publication
Application
Priority
- EP 98909672 A 19980318
- EP 97301842 A 19970319
- GB 9800820 W 19980318
Abstract (en)
[origin: WO9842105A1] A self-routing switch such as a Banyan switch has a controller which recognises incoming routing requests which would give rise to blocking in the switch and makes an optimum selection of queued requests which can be handled without blocking. The controller is implemented by means of an optical neural network having a light source array (14) to illuminate a photodetector array (26) through a mask (15), there being a light source array element (20) and a photodetector element (27) for each possible path through the switch. The assignment of paths to array locations is such that, for the path corresponding to any light source array element, the photodetector array element positions corresponding to the paths blocked thereby form a pattern which is a shifted version of the pattern formed by the photodetector array elements corresponding to the paths blocked by a path corresponding to any other light source array element, whereby a single mask may be employed.
IPC 1-7
IPC 8 full level
G06E 3/00 (2006.01); G06F 15/80 (2006.01); H04L 12/56 (2006.01); H04L 12/937 (2013.01); H04L 12/931 (2013.01); H04L 12/933 (2013.01); H04L 12/935 (2013.01); H04L 49/111 (2022.01)
CPC (source: EP)
H04L 49/254 (2013.01); H04L 49/101 (2013.01); H04L 49/1507 (2013.01); H04L 49/3018 (2013.01); H04L 49/357 (2013.01)
Citation (search report)
See references of WO 9842105A1
Designated contracting state (EPC)
BE CH DE FR GB LI
DOCDB simple family (publication)
DOCDB simple family (application)
GB 9800820 W 19980318; EP 98909672 A 19980318