Network access device for a cargo container security network
US8607049B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Aug 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a wireless bridge for wireless to TCP/IP based communication is provided. The wireless bridge can be with reduced functional devices (RFDs) in a star topology network acting as a network access device (NAD). Another embodiment can be with fully functional devices (FFDs) in a peer-to-peer topology network also capable of operating as a NAD. The network address device includes a processor with memory; a radio frequency transceiver front end communicating with the processor; an antenna coupled to the front end; and a power source providing power to the processor and front end wherein the processor with memory contains computer instructions for executing IEEE 802.15.4 standard compliant operations; transmitting a network access device announcement (NADA) message representative of the initiation of passive network discovery to multiple end devices; determining whether a receiving/designated end device is network compliant; establishing communication with the compliant designated end device; and forwarding the NADA message to the designated end device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.