发明名称 |
DATA COMMUNICATION METHOD AND APPARATUS |
摘要 |
A method and apparatus for transmission of data among computers or peripherals along a loop transmission line includes a master system which provides signals along the transmission line for establishing a series of data frames of equivalent length. Each data frame is assigned a frame number, and is allotted a preselected amount of available space for placement of data. Subsequent computers or peripherals are preprogramed with a series of frame numbers which identify those data frames into which they may write data, or from which data is to be read. The allotment of preselected frame numbers for placement and reception of data by the respective devices provides for equivalent sharing of the available data transmission capability of the loop transmission system.
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申请公布号 |
US5090029(A) |
申请公布日期 |
1992.02.18 |
申请号 |
US19890345580 |
申请日期 |
1989.05.01 |
申请人 |
HITACHI, LTD. |
发明人 |
YAMAMOTO, TOSHIFUMI;TAKAKURA, MITSURO;YAMAOKA, HIROMASA;OKADA, MASAKAZU |
分类号 |
H04L12/43 |
主分类号 |
H04L12/43 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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