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公开(公告)号：EP0444656A3
公开(公告)日：1993-06-30
申请号：EP91102974.2
申请日：1991-02-27
CPC分类号： H04L12/40032 , B60R16/0315 , H04J3/24
摘要： Data having an ID code attached thereto is transferred via a network line (16). The ID code is detected by an ID code detection circuit (30) and data is received by a data receiving circuit (31). An ID code (RX ID) detected by the ID code detection circuit (30) and an ID code previously stored in an ID comparing register (32) are compared with each other by a comparator circuit (33). Predetermined ID codes corresponding to an engine rotation speed and car speed, for example, are stored in the ID comparing register (32). A masking circuit for masking one or more bits of the ID code is provided in the comparator circuit (33). The switching state of a switch (34) for controlling the transfer of data received by the data receiving circuit (31) is controlled according to a comparison output of the comparator circuit (33). when the ID codes are coincident with each other, the switch (34) is turned on, causing data received by the data receiving circuit (31) to be transferred to a CPU (18). A plurality of electronic instruments (10) can be selected by use of a single ID code by masking at least one bit of the ID code by means of a masking circuit.
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公开(公告)号：EP0444656A2
公开(公告)日：1991-09-04
申请号：EP91102974.2
申请日：1991-02-27
CPC分类号： H04L12/40032 , B60R16/0315 , H04J3/24
摘要： Data having an ID code attached thereto is transferred via a network line (16). The ID code is detected by an ID code detection circuit (30) and data is received by a data receiving circuit (31). An ID code (RX ID) detected by the ID code detection circuit (30) and an ID code previously stored in an ID comparing register (32) are compared with each other by a comparator circuit (33). Predetermined ID codes corresponding to an engine rotation speed and car speed, for example, are stored in the ID comparing register (32). A masking circuit for masking one or more bits of the ID code is provided in the comparator circuit (33). The switching state of a switch (34) for controlling the transfer of data received by the data receiving circuit (31) is controlled according to a comparison output of the comparator circuit (33). when the ID codes are coincident with each other, the switch (34) is turned on, causing data received by the data receiving circuit (31) to be transferred to a CPU (18). A plurality of electronic instruments (10) can be selected by use of a single ID code by masking at least one bit of the ID code by means of a masking circuit.
摘要翻译： 经由网络线路（16）传送附有ID码的数据。 ID码由ID码检测电路（30）检测，数据由数据接收电路（31）接收。 由ID码检测电路（30）检测到的ID码（RX ID）和预先存储在ID比较寄存器（32）中的ID码通过比较电路（33）进行比较。 例如，对应于发动机转速和轿厢速度的预定ID代码被存储在ID比较寄存器（32）中。 用于屏蔽ID码的一个或多个比特的掩蔽电路被提供在比较器电路（33）中。 根据比较电路（33）的比较输出来控制用于控制由数据接收电路（31）接收的数据传送的开关（34）的开关状态。 当ID代码相互重合时，开关（34）导通，使由数据接收电路（31）接收到的数据被传送到CPU（18）。 可以通过使用单个ID码通过屏蔽电路屏蔽ID码的至少一位来选择多个电子乐器（10）。
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