Bi-diredctional wire-line to local area network interface and method
US5796742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Jan 14, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A bi-directional wire-line to local area network interface, used between a remote host on a local area network (LAN), and a wire-line carrier system. A LAN media access control and physical interface converts outgoing LAN data from a LAN to an outgoing-data packet with a machine readable format. A LAN transmission control protocol and internet protocol stack identifies a protocol type of the outgoing-data packet from the LAN-MAC and physical interface. When the outgoing-data packet does not have a modem control command, a protocol converter correlates the outgoing-data packet to a channel number and depacketizes the outgoing-data packet into outgoing-binary data. Using the channel number, a connection controller and signal transform polls the outgoing-binary data and transforms the outgoing-binary data to a digitized representation of an analog signal having pulse code modulation (PCM). A wire-line carrier interface uses the channel number for multiplexing the digitized representation of the analog signal with frame bits, and also multiplexes any alarm conditions and signalling bits, as an outgoing-wire-line carrier signal. The wire-line carrier interface sends the outgoing-wire-li…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.