发明名称 |
Data transfer method and apparatus |
摘要 |
The invention resides in the field of transferring data and other information from multiple asynchronous TDM channels across a synchronous interface in digital blocks of a preset length. Presently, transfer of data and timing information requires serial transmission of frame payload, qualified with clock and frame pulse indications. A separate set of these signals is required in both directions for each port or physical link. An interface of the invention permits data transfer in blocks which are uniquely identified for a specific port or links and the position of the block within the frame (if the transfer is one of framed data). The invention greatly reduces the number of required signals, thus enabling reduction of pin count requirements and an increase in the number of serviced ports.
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申请公布号 |
US5878044(A) |
申请公布日期 |
1999.03.02 |
申请号 |
US19960637961 |
申请日期 |
1996.04.25 |
申请人 |
NORTHERN TELECOM LIMITED |
发明人 |
FRISCHKNECHT, DEBORAH ANN;PILLAR, JOHN FRANK;COADY, ALAN CHARLES;LOEWEN, JONATHAN DAVID |
分类号 |
H04J3/16;(IPC1-7):H04J3/16 |
主分类号 |
H04J3/16 |
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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