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Bi-diredctional wire-line to local area network interface and method

  • US 5,796,742 A
  • Filed: 01/14/1997
  • Issued: 08/18/1998
  • Est. Priority Date: 07/22/1993
  • Status: Expired due to Term
First Claim
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1. An interface used between a remote host on a local area network (LAN), and a wire-line carrier system comprising:

  • a LAN media access control (LAN-MAC) and physical interface for converting data from said local area network to an outgoing-data packet with a machine readable format;

    a LAN transmission control protocol and internet protocol stack, coupled to said LAN-MAC and physical interface, for identifying a protocol type of the outgoing-data packet from the LAN-MAC and physical interface and for correlating the outgoing-data packet to an incoming-data packet;

    a protocol converter coupled to said LAN transmission control protocol and internet protocol stack for correlating the outgoing-data packet to a channel number and depacketizing the outgoing-data packet into outgoing-binary data;

    a connection controller and signal transform subsystem coupled to said protocol converter, responsive to the channel number for polling the outgoing-binary data and for transforming, without using an analog signal, the outgoing-binary data to a digitized representation of an analog signal having pulse code modulation (PCM); and

    a wire-line carrier interface, coupled to said connection controller and signal transform subsystem, responsive to the channel number, for multiplexing the digitized representation of the analog signal as an outgoing-wire-line carrier signal and sending the outgoing-wire-line carrier signal over said wire-line carrier system.

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