发明名称 |
Transmission of data over a radio frequency channel |
摘要 |
An improved system for the transmission of data over a cellular telephone channel is provided. The system is especially adapted to reduce the cost associated with cellular telephone calls by allowing data transmission only when the channel signal level is greater than a pre-defined value, so as maximize the probability that a transmission will be successful. In addition, the system provides for user transparent reconnection and reestablishment of a dropped link, allowing transmission to continue where dropped without the need to retransmit data already successfully received. As an additional benefit, the system provides a mechanism for call timing and billing so that an estimated bill may be generated based on connection time.
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申请公布号 |
US7092718(B2) |
申请公布日期 |
2006.08.15 |
申请号 |
US20030397790 |
申请日期 |
2003.03.25 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
BERGINS LEWIS A.;ONORATO MICHAEL;FALK JERRY;CAREY RICHARD;KLOC DENNIS;GREENE ROY |
分类号 |
H04B1/10;H04B1/38;H04B7/005;H04L1/16;H04L1/18;H04L12/56;H04M1/00;H04M15/00;H04W4/24;H04W24/00;H04W28/04;H04W28/14;H04W52/50;H04W76/02;H04W76/06;H04W84/04;H04W88/02;H04W99/00 |
主分类号 |
H04B1/10 |
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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