Optically controlled optical-path-switching-type data distribution apparatus and distribution method
US7792398B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 14, 2005 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Mar 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0041
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Data to be sent are, in a data communication unit, first divided into electric signal packets by a data transmission/receipt control unit, whereby an electric signal sequence tag is added to each electric signal packet, then converted into optical packets by an optical signal transmitting unit, and transmitted through an optical signal path. At optical switch, the optical paths of the packets are switched to optical signal paths by the actions of optical destination tags that are respectively synchronized with optical packets and irradiated by an optical signal transmitting unit. At optical signal receiving units, the received optical packets are converted to electric signal packets, and reassembled to be original data according to the identification information on the reassembly sequence recorded in the sequence tag in an electric signal packet by data transmission/receipt control units, and distributed to client devices as electric signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.