Data communication method using identification protocol
    3.
    发明授权
    Data communication method using identification protocol 失效
    数据通信方法采用识别协议

    公开(公告)号:US5500650A

    公开(公告)日:1996-03-19

    申请号:US990915

    申请日:1992-12-15

    摘要: A protocol is used to coordinate the use of a common communication medium by one or more interrogating commander stations and an unknown plurality of responding responder stations. Each commander station and each responder station is equipped to broadcast messages and to check for error in received messages. When more than one station attempts to broadcast simultaneously, an erroneous message is received and communication is interrupted. To establish uninterrupted communication, a commander station broadcasts a command causing each responder station of a potentially large first number of responder stations to each select a random number from a known range and retain it as its arbitration number. After receipt of such a command, each addressed responder station transmits a response message containing its arbitration number. Zero, one, or several responses may occur simultaneously. By broadcasting requests for identification to various subsets of the full range of arbitration numbers and checking for an immediate error-free response, a commander station can determine the arbitration number of every responder station capable of communicating at the time. Consequently, a commander station can conduct subsequent uninterrupted communication with each responder station, for example by addressing only one responder station. Responder stations of this invention require minimal logic and circuitry to respond to multiple commander stations.

    摘要翻译: 协议用于协调由一个或多个询问指挥员站和未知的多个响应响应站的公共通信介质的使用。 每个指挥台和每个响应站都配备了广播消息并检查收到的消息中的错误。 当多个站尝试同时广播时,接收到错误的消息并中断通信。 为了建立不间断的通信,指挥台广播一个命令,使每个响应者站的潜在的大的第一个响应站的每一个都从一个已知的范围中选出一个随机数,并将其保留为其仲裁号。 在接收到这样的命令之后,每个寻址响应站发送包含其仲裁号的响应消息。 零,一个或几个响应可能同时发生。 通过向全方位仲裁号码的各种子集广播识别请求,并立即检查无误差的响应,指挥台可以确定当时能够进行通信的每个响应者站的仲裁号码。 因此,指挥台可以进行与每个应答者站的后续的不间断的通信,例如通过仅寻址一个应答站。 本发明的响应站要求最小的逻辑和电路来响应多个指挥台。

    Data communication method using identification protocol
    4.
    发明授权
    Data communication method using identification protocol 失效
    数据通信方法采用识别协议

    公开(公告)号:US5627544A

    公开(公告)日:1997-05-06

    申请号:US619274

    申请日:1996-03-18

    摘要: A protocol is used to coordinate the use of a common communication medium by one or more interrogating commander stations and an unknown plurality of responding responder stations. Each commander station and each responder station is equipped to broadcast messages and to check for error in received messages. When more than one station attempts to broadcast simultaneously, an erroneous message is received and communication is interrupted. To establish uninterrupted communication, a commander station broadcasts a command causing each responder station of a potentially large first number of responder stations to each select a random number from a known range and retain it as its arbitration number. After receipt of such a command, each addressed responder station transmits a response message containing its arbitration number. Zero, one, or several responses may occur simultaneously. By broadcasting requests for identification to various subsets of the full range of arbitration numbers and checking for an immediate error-free response, a commander station can determine the arbitration number of every responder station capable of communicating at the time. Consequently, a commander station can conduct subsequent uninterrupted communication with each responder station, for example by addressing only one responder station. Responder stations of this invention require minimal logic and circuitry to respond to multiple commander stations.

    摘要翻译: 协议用于协调由一个或多个询问指挥员站和未知的多个响应响应站的公共通信介质的使用。 每个指挥台和每个响应站都配备了广播消息并检查收到的消息中的错误。 当多个站尝试同时广播时,接收到错误的消息并中断通信。 为了建立不间断的通信,指挥台广播一个命令,使每个响应者站的潜在的大的第一个响应站的每一个都从一个已知的范围中选出一个随机数,并将其保留为其仲裁号。 在接收到这样的命令之后,每个寻址响应站发送包含其仲裁号的响应消息。 零,一个或几个响应可能同时发生。 通过向全方位仲裁号码的各种子集广播识别请求,并立即检查无误差的响应,指挥台可以确定当时能够进行通信的每个响应者站的仲裁号码。 因此,指挥台可以进行与每个应答者站的后续的不间断的通信,例如通过仅寻址一个应答站。 本发明的响应站要求最小的逻辑和电路来响应多个指挥台。