发明名称 Remotely-activated telephone system for communication with the disabled
摘要 A remotely-activated telephone system for remote caller controlled communication with the disabled having a master unit connected to a telephone line and at least one satellite unit. The disclosed system provides channel means for bi-directional coupling of acoustic signals between the satellite unit and the telephone line through the master unit and control means responsive to a control signal received from a remote caller by way of the telephone line. The disclosed control means allow a remote caller to select a satellite unit and to establish two-way speech communications without intervention by the disabled party.
申请公布号 US5237602(A) 申请公布日期 1993.08.17
申请号 US19920857721 申请日期 1992.03.25
申请人 LAZIK, GEORGE L. 发明人 LAZIK, GEORGE L.
分类号 H04M1/247;H04M1/725;H04M11/02 主分类号 H04M1/247
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