发明名称 ADDING CORDLESS HANDSET CAPABILITY TO A CORDED TELEPHONE
摘要 <p>An apparatus and method for adding cordless handset capability to an existing corded telephone is disclosed. The present invention includes a cordless handset (114A) which replaces the corded handset of the existing corded telephone. The cordless handset (114A) includes a wireless transmitter, a wireless receiver, a battery to provide power to the cordless handset, and a battery charging connector. The present invention includes a cradle insert stucture for forming a substitute handset cradle (100) over the original handset cradle (112) of the corded telephone. The substitute handset (114A) cradle receives the cordless handset when it is not in use.</p>
申请公布号 WO1992000641(A1) 申请公布日期 1992.01.09
申请号 US1991001357 申请日期 1991.02.27
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