| 摘要 |
PURPOSE:To facilitate the designation of a position of an explained part on a display screen by displaying an indicating rod symbol on a screen of a lecture listening person side display device by using a peripheral equipment so that it can move freely. CONSTITUTION:By a data input device 1, an arbitrary position on a screen of a personal computer (pasocon) 30 is indicated. An indicated position transmitting part 3 transmits an indicated position which has been indicated by the personal computer 30 of a lecturer side to a lecture listening person side personal computer 40. An indicated position receiving part 4 receives it, and displays an indicated rod symbol in a position on a screen of a lecture listening person side display device 6. A shape of this indicating rod symbol is registered in advance in an indicating rod shape designating part 11. In such a way, by using the data input device 1 such as a mouse which can indicate freely an arbitrary position on the screen, the indicating rod symbol is displayed on the lecture listening person training screen 6. In this state, by moving said symbol, a position of an explained part can be designated easily. |
