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1. 发明授权

US4689786A Local area network with self assigned address method 失效
标题翻译：具有自分配地址方式的局域网
公开(公告)号：US4689786A
公开(公告)日：1987-08-25
申请号：US715066
申请日：1985-03-21
申请人： Gursharan S. Sidhu , Alan B. Oppenheimer , Lawrence A. Kenyon, Jr. , Ronald R. Hochsprung
发明人： Gursharan S. Sidhu , Alan B. Oppenheimer , Lawrence A. Kenyon, Jr. , Ronald R. Hochsprung
IPC分类号： G06F13/00 , G06F12/06 , H04L12/413 , H04L29/12 , H04J3/24
CPC分类号： H04L61/2038 , G06F12/0669 , H04L12/413 , H04L29/12254 , H04L29/1232 , H04L61/2092
摘要： A local area network is disclosed including apparatus and methods for transferring data between a plurality of data processing resources ("agents") coupled to a cable. In the preferred embodiment, a plurality of agents are coupled to a common cable for data transmission and reception. An agent newly coupled to the cable dynamically assigns itself a unique address on the cable to which other agents may send data. Once an agent has been assigned a final address, it may then transmit to, and receive data from, other agents on the cable. An agent desiring to send data to a receiving agent follows a three step handshake, wherein the sending agent transmits an "RTS" signal and within a predetermined time must receive a "CTS" signal from the receiving agent. The sending agent then transmits a data frame within a predetermined time after the CTS signal is received. The failure to detect a return CTS signal within the predetermined time denotes a collision condition. Re-transmission is attempted using a linear back off method which is adjusted based on previous cable traffic history.
摘要翻译：公开了一种局域网，其包括用于在耦合到电缆的多个数据处理资源（“代理”）之间传送数据的装置和方法。在优选实施例中，多个代理耦合到用于数据传输和接收的公共电缆。新耦合到电缆的代理在其他代理可以向其发送数据的电缆上动态地分配唯一的地址。一旦代理商被分配了一个最终地址，那么它可以传送到电缆上的其他代理并从其接收数据。希望向接收代理发送数据的代理遵循三步握手，其中发送代理发送“RTS”信号，并且在预定时间内必须从接收代理接收“CTS”信号。然后，发送代理在接收到CTS信号之后的预定时间内发送数据帧。在预定时间内检测返回CTS信号的失败表示碰撞状况。使用基于以前的电缆流量历史调整的线性回退方法来尝试再传输。

2. 发明授权

US4661902A Local area network with carrier sense collision avoidance 失效
标题翻译：具有载波侦听冲突避免的局域网
公开(公告)号：US4661902A
公开(公告)日：1987-04-28
申请号：US715065
申请日：1985-03-21
申请人： Ronald R. Hochsprung , Lawrence A. Kenyon, Jr. , Alan B. Oppenheimer , Gursharan S. Sidhu
发明人： Ronald R. Hochsprung , Lawrence A. Kenyon, Jr. , Alan B. Oppenheimer , Gursharan S. Sidhu
IPC分类号： H04L12/413 , G06F15/16
CPC分类号： H04L12/413
摘要： A local area network is disclosed including apparatus and methods for transferring data between a plurality of data processing resources ("agents") coupled to a cable. In the preferred embodiment, a plurality of agents are coupled to a common cable for data transmission and reception. An agent newly coupled to the cable dynamically assigns itself a unique address on the cable to which other agents may send data. Once an agent has been assigned a final address, it may then transmit to, and receive data from, other agents on the cable. An agent desiring to send data to a receiving agent follows a three step handshake, wherein the sending agent transmits an "RTS" signal and within a predetermined time must receive a "CTS"signal from the receiving agent. The sending agent then transmits a data frame within a predetermined time after the CTS signal is received. The failure to detect a return CTS signal within the predetermined time denotes a collision condition. Re-transmission is attempted using a linear back off method which is adjusted based on previous cable traffic history.
摘要翻译：公开了一种局域网，其包括用于在耦合到电缆的多个数据处理资源（“代理”）之间传送数据的装置和方法。在优选实施例中，多个代理耦合到用于数据传输和接收的公共电缆。新耦合到电缆的代理在其他代理可以向其发送数据的电缆上动态地分配唯一的地址。一旦代理商被分配了一个最终地址，那么它可以传送到电缆上的其他代理并从其接收数据。希望向接收代理发送数据的代理遵循三步握手，其中发送代理发送“RTS”信号，并且在预定时间内必须从接收代理接收“CTS”信号。然后，发送代理在接收到CTS信号之后的预定时间内发送数据帧。在预定时间内检测返回CTS信号的失败表示碰撞状况。使用基于以前的电缆流量历史调整的线性回退方法来尝试再传输。

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