Telephone line interface architecture using ringer inputs for caller ID data
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United States of America Patent
Stats
-
Oct 2, 2001
Issued Date -
N/A
app pub date -
Mar 4, 1998
filing date -
Apr 22, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A capacitive interface may be utilized to provide a linear output from the TIP and RING phone lines to ringer circuitry. Because the interface provides a linear signal, the input provided to the ringer circuitry may also be utilized for other functions in addition to ringer detection functions. More particularly, the outputs of the capacitive interface may also be connected to caller ID circuitry input lines so as to also provide caller ID data. The use of common inputs for the ringer circuitry and the caller ID circuitry eliminates the need for a separate caller ID interface.
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