| 摘要 |
<p>PURPOSE:To make presentation, provided so as to explain the article, easier to see according to the state of a customer in environment wherein the presentation is made easy for a salesperson and a customer to see and listened to. CONSTITUTION:Portable equipments 1P and 1C equipped with display means 4P and 4C, input means 3P and 3C, and speech output means 5P and 5C are provided and the same contents, etc., are enabled to be seen and listened to; and a measuring means 12 which measures the distance between the portable equipment 1C and an operator is provided on the side of the portable equipment 1C and a magnification varying means 11 which varies the size of a display image on the display means 4c of the portable equipment 1C to easy-to-see size according to the distance measured by the measuring means 12 is provided.</p> |
