Data collection network apparatus and method
US5548633A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Apr 26, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data communications system which comprises at least one group of subscriber data interface elements, with each interface element having at least one data input port and a data output port, and each output port being electrically connectable to a subscriber line of the telephone network to transmit data thereon without interfering with any telephone service that may be present on these subscriber line. A network data interface element, for each group of subscriber data interface elements, being located within a short distance from the farthest subscriber data interface element. Each subscriber data interface element having a data input port and a data output port, and each input port being electrically connectable to a subscriber line of the telephone network and in communication with these subscriber data interface elements thereover. A data collection unit having a data storage mechanism and a plurality of data input ports, with each data input port being connectable to the data output port of a corresponding network data interface element and capable of communicating therewith for collecting and storing the data received from these network data interface elements and assembling…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.