发明名称 Bi-diredctional wire-line to local area network interface and method
摘要 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-line carrier signal over the wire-line carrier system.
申请公布号 US5796742(A) 申请公布日期 1998.08.18
申请号 US19970783539 申请日期 1997.01.14
申请人 U.S. ROBOTICS CORPORATION 发明人 KLOTZBACH, DAVID;PECEN, MARK;FAVREAU, KEITH;KNUEVEN, MICHAEL
分类号 H04L12/66;H04L29/06;(IPC1-7):H04L12/46 主分类号 H04L12/66
代理机构 代理人
主权项
地址