发明名称 |
Multiple data rate digital switch for a TDMA communications controller |
摘要 |
A multiple data rate digital switch for a TDMA communications controller is disclosed which can service a plurality of input/output ports having many different data rates on a time divided basis, either between ports connected to the same controller or between ports connected to different, geographically remote controllers. A transmit burst buffer and a receive burst buffer are connected between the local ports and a TDMA communication link and an intranodal buffer is connected between local ports. All three buffers are accessed by a switch control memory which stores ni control words for each of the ports which are scanned m times per TDMA frame, there being a frame rate of f frames per second. Thus, the ports are selected and their data is buffered at a rate Ri which is equal to the product of ni times m times f. In this manner, ports having a variety of data rates can be serviced on a time interleaved basis with maximum connectivity.
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申请公布号 |
US4332026(A) |
申请公布日期 |
1982.05.25 |
申请号 |
US19800128322 |
申请日期 |
1980.03.07 |
申请人 |
IBM CORPORATION |
发明人 |
ALVAREZ, III, JOSEPH A.;BRENNEN, JOHN F.;KRUG, ROBERT W. |
分类号 |
H04J3/00;H04B7/15;H04B7/212;H04J3/16;H04Q3/52;H04Q11/04;(IPC1-7):H04J3/16 |
主分类号 |
H04J3/00 |
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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