发明名称 |
Cordless data/facsimile modem |
摘要 |
A cordless modem comprises a radio pair interfaced to a standard data/fax modem which allows a user of a personal computer to wirelessly connect to a telephone line. One end of the radio pair is a remote unit interfaced to the modem contained within the PC while the other end is a base unit connected to a standard telephone wall jack. This arrangement allows the user the convenience and freedom of using a PC, laptop, personal digital assistant, etc., within several hundred feet of a phone jack without being encumbered by a cord. A warning alarm on the remote unit informs the user when the signal strength between the radio pair is below a threshold value. Additionally, the base unit may be equipped with two spatially separated antennas to help mitigate the effects of signal fading. |
申请公布号 |
EP0788285(A3) |
申请公布日期 |
2005.01.19 |
申请号 |
EP19960308811 |
申请日期 |
1996.12.05 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CINA, MICHAEL FRANK;FLINT, EPHRAIM BEMIS;GAUCHER, BRIAN PAUL;KWARK, YOUNG HOON;OPRYSKO, MODEST MICHAEL;PENCE, WILLIAM EDWARD;PONNAPALLI, SAILA |
分类号 |
H04M1/725;H04M11/00;H04W4/18;H04W24/00;H04W68/00;H04W76/02;H04W84/10;H04W88/08 |
主分类号 |
H04M1/725 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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