Patent ID: 7050790
Filing Date: 2006-05-23
Classification: G06Q,H04L

Abstract:
1. An information retrieval system comprising: a server to transmit audio and/or visual information that changes as time elapses in a limited space, and transmit relevant information in synchronism with the transmitted audio and/or visual information that changes as time elapses, the relevant information being related to and changing as time elapses in synchronism with the transmitted audio and/or visual information that changes as time elapses; and a hand-held device capable of communication with the server in a communications area covered by the server, the hand-held device establishing communication with the server via specific communication means when the hand-held device is located in the communications area, and receiving the transmitted relevant information while the communication between the hand-held device and the server is being established; wherein the hand-held device is capable of having access to an information source different from the server, in order to gain a detailed information about the audio and/or visual information based on the received relevant information.