Appeal No. 1998-1696
Application No. 08/562,197
The invention is directed to a multiplexer device for
enabling more than one line telephone service provided on two
conductor analog subscriber telephony lines to be multiplexed
over a single existing interior conventional two conductor
wire and demultiplexed at the terminal subscriber location to
more than one analog two conductor subscriber lines.
Independent claim 15 is reproduced as follows:
15. A system for increasing the capacity of
preexisting subscriber lines located within a subscriber’s
premises comprising:
at least two external analog telephone subscriber lines
supplied by a telephone service provider including data,
voice, and control signals;
a master multiplexer subscriber line unit located
external to said subscriber’s premises comprising:
at least two frontend electronic connections to said at
least two external analog telephone subscriber lines supplied
by the telephone service provider;
multiplexing and demultiplexing circuitry for data voice
communications for said at least two external analog telephone
subscriber lines;
detection and generation circuitry for analog telephone
signaling and control;
an interior preexisting conventional two conductor telephone
wire;
a slave demultiplexer subscriber line unit located within said
subscriber’s premises comprising:
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