发明授权
US6144464A Method and system for modification of fax data rate over wireless
channels
失效
通过无线信道修改传真数据速率的方法和系统
- 专利标题: Method and system for modification of fax data rate over wireless channels
- 专利标题(中): 通过无线信道修改传真数据速率的方法和系统
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申请号: US927693申请日: 1997-09-11
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公开(公告)号: US6144464A公开(公告)日: 2000-11-07
- 发明人: Scott W. Rupp , John Wheeler , Brady Brown
- 申请人: Scott W. Rupp , John Wheeler , Brady Brown
- 申请人地址: CA Santa Clara
- 专利权人: 3Com Corporation
- 当前专利权人: 3Com Corporation
- 当前专利权人地址: CA Santa Clara
- 主分类号: H04B7/26
- IPC分类号: H04B7/26 ; H04L1/00 ; H04L1/18 ; H04N1/00 ; H04N1/333 ; H04Q7/32 ; H04N1/32
摘要:
A method and apparatus for improving the successful transmission of facsimile data over a wireless communication channel is provided comprising a facsimile machine, a wireless transceiver and a connector interfacing therebetween. The facsimile machine detects an interface with the wireless transceiver and notifies the facsimile machine of a wireless communication channel through which facsimile data will traverse. The facsimile machine, in conjunction with the wireless transceiver, establishes a wireless communication channel according to an initial data transfer rate corresponding with the capability of the wireless transceiver or known communication channel conditions. The facsimile machine then exchanges facsimile data over the wireless communication channel and a receiving facsimile machine evaluates the facsimile data to detect errors injected through the wireless communication channel. When such errors are detected, the facsimile machine may institute retransmission of the previous facsimile data relying upon an anticipated improved condition of the wireless communication channel. When the conditions of this wireless communication channel have not improved, the facsimile machine renegotiates a data transfer rate more conducive with the present capability of the wireless communication channel. A facsimile machine further determines when the wireless transceiver is removed and reverts back to traditional wired communication channel data rates.
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