发明授权
- 专利标题: Full duplex communication on a single communication ring
- 专利标题(中): 在单个通信环上进行全双工通信
-
申请号: US554800申请日: 1995-11-07
-
公开(公告)号: US5581710A公开(公告)日: 1996-12-03
- 发明人: Francis E. Noel, Jr. , Kenneth D. Schultz , Thomas E. Stammely
- 申请人: Francis E. Noel, Jr. , Kenneth D. Schultz , Thomas E. Stammely
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: H04L12/42
- IPC分类号: H04L12/42 ; H01J13/00
摘要:
A ring network of workstations interconnected on a single simplex ring is converted to duplex communications on the single ring by placing two transceivers in each workstation and adding a duplex conversion device between each workstation and its ring terminal box. One of the transceivers receives and retransmits signals in a clockwise direction around the ring; the other transceiver receives and retransmits signals in a counter-clockwise direction around the ring. The clockwise and counter-clockwise signals are superimposed on the ring but are isolated at the workstations by the duplex conversion device.