Analog gateway
US7260090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2002 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Nov 24, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0442
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A secure analog gateway is configured with a pipelined architecture for interfacing various types of analog devices with a digital communication network and enabling asynchronous bi-directional communication between the analog device and the digital communication network using, for example, standard transmission control protocol over internet protocol (TCP/IP) in a network mode of operation. The analog gateway is also capable of operation in a stand-alone mode of operation in which data from an analog device is stored locally for later retrieval by way of a network. The functionality of the analog gateway is segregated among multiple processing elements which each perform a specific part of the gateway's function. In accordance with an important aspect of the invention, the analog gateway utilizes relatively inexpensive digital signal processors (DSP) to perform gateway functions, thus eliminating the need for relatively more expensive microprocessors and increased memory storage for storing Microsoft Windows or Unix operating systems and web-browsers as in known systems. In one embodiment of the invention, the analog gateway is configured to provide secure communications using sta…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.