| 摘要 |
PURPOSE:To enable the radio transmission of data among respective OA equipments without interfering the other equipments by mounting simply constituted radio transmitters and receivers to the respective OA equipments. CONSTITUTION:The respective equipments inside one group are put together and defined as an equipment system, the transmitters and receivers 7 and 8 of a spread spectrum system are mounted to the respective equipments within the group, a common spreading code 14 is used and the radio transmission of the data among the equipments with each other (only one pair at a time) is performed without the need of special line control. Thus, the equipments outside the group are not interfered. The line control can be enriched by dividing the data into information data and control data. |
