Invention Grant
- Patent Title: Optical circuit for comparing two N-bit binary words
- Patent Title (中): 用于比较两个N位二进制字的光电路
-
Application No.: US12183662Application Date: 2008-07-31
-
Publication No.: US07869107B2Publication Date: 2011-01-11
- Inventor: Antonella Bogoni , Luca Poti , Mirco Scaffardi
- Applicant: Antonella Bogoni , Luca Poti , Mirco Scaffardi
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett, P.L.L.C.
- Priority: EPPCT/EP2007/057886 20070731
- Main IPC: G02F3/00
- IPC: G02F3/00

Abstract:
An optical comparator circuit includes a first stage including an optical gate which receives the signals applied to the two inputs and produces at its output an N bit signal with each bit being representative of the logical expression A XOR B for a respective pair of bits of the words A and B, a second stage which comprises an optical gate having at least two inputs, a first input being connected to the output of the first stage by an optical connection having a first time delay, and a second input being connected to the output of the first stage through (N−1) further optical connections, each further connection having a different associated time delay which is longer than the first time delay.
Public/Granted literature
- US20090059331A1 Optical Circuit for Comparing Two N-Bit Binary Words Public/Granted day:2009-03-05
Information query