| 摘要 |
PURPOSE:To enable the multiplex indication of wake data through the provision of a memory circuit for recording the past wake or data relating to the wake in addition to a memory circuit for recording the present course. CONSTITUTION:Data measured by a navigation device 30 is processed by a CPU33 and the navigating position is stored in an indicator memory 38. The measured data is stored in a memory 35 at intervals corresponding to the setting position of a time setting switch. The data of the past wakes or data relating to the past wakes is stored in memories 36 and 37 and an external apparatus 45. The CPU33 also makes a memory 38 store the data of indicating elements for identifying the navigating position indicated by latitude and longitude and cursor lines. In order to provide multiplex indication on the basis of the content of those memories, the data stored in the memory 36 or 37 is stored in the memory 38 in addition to the wake. The data contained in the memory 38 is indicated on a CRT39 through the operation of a switch. |
