METHOD AND DEVICE FOR TRANSMISSION/RETRIEVAL OF COMMODITY INFORMATION

摘要

PURPOSE:To quickly offer various types of commodity information to the demanders by transmitting various commodity data and the desired picture data to the user slave stations via a repeater mounted on a communication satellite. CONSTITUTION:The commodity data required by the user slave stations 200 for retrieval of commodities are transmitted to these stations 200 from a master station 100 via a repeater 300. Then the commodities are retrieved out of the commodity data. Furthermore the picture data on the designated commodity is sent to the station 200 from the station 100 by a command given from the station 200. Thus the relevant picture is displayed at the station 200 and a user studies the pictures of retrieved commodities by comparison and selects his/her preferable commodities.