发明名称 Synchronous time division multiplexing using jam-based frame synchronization
摘要 If a transceiver has a message to send during an idle medium condition, it transmits a jam pattern onto the medium for a predetermined time (based on maximum network propagation delay). If a transceiver detects a jamming pattern, it inhibits its own transmissions and waits for the end of the jamming pattern. If multiple transceivers begin jamming within a propagation delay of each other (within the network vulnerable time), their jamming transmissions will not destructively interfere with each other. When jamming ceases, all transceivers begin a time slice progression. Thus, the end of the jamming period when all transceivers have finished jamming serves as a network-wide synchronization for the start of an implicit token time slice progression.
申请公布号 US5436901(A) 申请公布日期 1995.07.25
申请号 US19940202870 申请日期 1994.02.25
申请人 OTIS ELEVATOR COMPANY 发明人 KOOPMAN, PHILIP J.
分类号 H04J3/06;H04L12/417;(IPC1-7):H04J3/06 主分类号 H04J3/06
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