Information terminal, server device, searching system, and searching method thereof

摘要

An object of the present invention is to provide a technique of an information terminal that allows more efficient utilization of high-level searching functions. The information terminal is provided with an audio input accepting unit to accept an input of speech information, a communication unit to establish communication with a predetermined server device via a network, an output unit, a POI specifying unit to transmit the speech information accepted by the audio input accepting unit to the server device and receive information specifying a candidate of a POI (Point Of Interest) associated with the speech information, a POI candidate output unit to output to the output unit, the information specifying the candidate of the POI received by the POI specifying unit, and a route searching unit to accept a selective input of the information specifying the candidate of the POI, and search for a route directed to the POI.

主权项

1. A server device comprising:
a speech information receiver adapted to receive speech information from a predetermined information terminal via a network; a noise removal processor adapted to remove noise information from the speech information, the noise removal processor configured to apply multiple noise removal algorithms to create multiple speech information items from which the noise has been removed; a speech information transmitter adapted to transmit the speech information items from which the noise has been removed to a predetermined speech recognizer via the network; a character string receiver adapted to receive, via the network, a plurality of character string candidates as a result of recognition of the speech information items by the speech recognizer; a character string transmitter adapted to transmit a plurality of character string candidates, via the network, to a predetermined POI provider for providing POI (Point of Interest) information associated with the character string candidate, the character string transmitter configured: i) to assign weights to the plurality of character string candidates depending on the noise removal algorithms previously applied to each corresponding speech information item; and ii) based on the selected application of noise removal algorithms to each speech information item, to give greater importance to corresponding character string candidates considered as having relatively high recognition precision; a POI information receiver adapted to receive, via the network, the POI information associated with the character string; and a POI information transmitter adapted to transmit the POI information to the information terminal.