发明名称 METHOD AND APPARATUS FOR DETECTING AND RESPONDING TO EVENTS OCCURRING ON A REMOTE TELEPHONE
摘要 Methods and apparatus for use in conjunction with a telephone or with equipment in telecommunication with a remote telephone are disclosed. The apparatus provides an indication as to whether a remote party using the remote telephone has performed a specific act causing the generation of a hook flash-type signal which is detected by the apparatus. The apparatus includes a low pass filter for passing energy having frequencies below about 500 Hz, and energy detector for detecting a specific electrical energy pulse having been filtered by the low pass filter and having a predetermined minimum magnitude. The apparatus also includes software for cooperating with the energy detector to detect a specific event(s) occurring on the telephone line during a predetermined maximum time window following the detection of a specific pulse. The detection of the specific event(s) provides an indication as to whether the remote party has performed a specific act such as attempting to initiate a 3-way conference call.
申请公布号 CA2114041(A1) 申请公布日期 1995.07.28
申请号 CA19942114041 申请日期 1994.01.27
申请人 TELE-MATIC CORPORATION 发明人 KITCHIN, DWIGHT W.;JOHNSON, TERRY D.;SCHOTT, ALAN K.;PASSE, SCOTT D.
分类号 H04M1/53;H04M1/66;H04M1/82;H04M3/56;(IPC1-7):H04M3/42 主分类号 H04M1/53
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