Yamaha Corporation

Shota Moriguchi

Yuki Seto

Takahiro Iwata

Hiroyuki Iwase

Tetsuro Ishida

Yumiko Ochi

Masashi Gompei

A broadcast system acquires a first audio signal and a second audio signal, and switch from one of broadcast operations by a broadcast device to another thereof, the broadcast operations including a first broadcast operation that transmits the first audio signal and the second broadcast operation that transmits a second audio signal. The first audio signal includes: a first voice; and a first sound component representative of first identification information corresponding to first related information related to the first voice, the first related information being provided from a distribution apparatus via a communication network to a terminal apparatus, and the second audio signal includes: a second voice; and a second sound component representative of second identification information corresponding to second related information related to the second voice, the second related information being registered in advance in the terminal apparatus.

Broadcast system, terminal apparatus, method for operating terminal apparatus, and recording medium

An information provision device transmits, by near field communication, fixed phrase information, of guidance information that guides a user, representative of a fixed phrase and insertion phrase information selected from among a plurality of pieces of insertion phrase information representative of different insertion phrases to be inserted in the fixed phrase, to a terminal device capable of presenting, to the user, presentation information corresponding to the guidance information where the insertion phrase represented by the insertion phrase information is inserted in the fixed phrase represented by the fixed phrase information.

Information provision device, terminal device, information provision system, and information provision method

A terminal apparatus receives identification information for events transmitted sequentially in conjunction with occurrence of events; sequentially identifies estimated time points at which each event is estimated to occur; determines whether progress of the plurality of events has stopped depending on whether it receives identification information for each event at a corresponding estimated time point for each event; in each of a plurality of event groups obtained by temporally dividing events, when an estimated time point is reached for an earliest event among at least one event belonging to each event group, causes a playback device to play related information for the at least one event belonging to each event group, and when progress of events is determined to have stopped, defers update of related information, which the playback device caused to play, and then resumes update of played related information when identification information is received after the determination.

Information processing method and terminal apparatus

A terminal device includes: a sound receiving device configured to receive a sound emitted according to an audio signal to generate a received-audio signal, the audio signal including an audio signal that represents a guide voice and including a modulated signal that includes identification information of the guide voice; an information extractor configured to extract the identification information from the received-audio signal generated by the sound receiving device; a transmitter configured to transmit an information request that includes the identification information extracted by the information extractor; an acquisitor configured to acquire, from among multiple pieces of related information that correspond to multiple pieces of identification information, a piece of related information that corresponds to the identification information in the information request; and an output device configured to output the piece of related information acquired by the acquisitor.

Terminal device, information providing system, information presentation method, and information providing method

An information management system includes: an audio signal acquisitor configured to acquire an audio signal representing a guide voice; a related information acquisitor configured to acquire related information that is related to the guide voice; an association manager configured to associate the related information acquired by the related information acquisitor for the guide voice with identification information that is notified to a terminal device upon emission of the guide voice corresponding to the audio signal; and an information provider configured to receive from the terminal device an information request including the identification information notified to the terminal device and to transmit to the terminal device the related information associated by the association manager with the identification information.

Information management system and information management method

An information providing system () has a sound receiver () that receives a guidance voice and generates a sound signal (S); a text identifier () that identifies, from among registered texts representing contents of utterances of different guidance voices, a registered text that is similar to an uttered text (L) that represents a content of an utterance of one of the guidance voices (V), the uttered text having been obtained by analyzing the sound signal (S) by use of speech recognition, and a sound outputter () that transmits distribution information (D) that indicates the registered text identified by the text identifier () to a terminal device capable of presenting to a user (U) guidance information (G) corresponding to the distribution information (D) from among pieces of guidance information (G) that correspond to the respective guidance voices.

Information providing system, information providing method, and computer-readable recording medium

An audio processing device has an information extractor that extracts identification information from a first audio signal in a first frequency band that includes an audio component of a sound for reproduction and an audio component including the identification information of the sound for reproduction and a signal processor that generates a second audio signal that includes the identification information extracted by the information extractor and that is in a second frequency band higher than the first frequency band, with a sound represented by the second audio signal being emitted from a sound emission device.

Reproduction system, terminal device, method thereof, and non-transitory storage medium, for providing information

Audio processing device and method of providing information

An information provision system includes provision instruction means for generating a provision instruction to provide a content associated with a guidance voice every emission of the guidance voice, and information distribution means for transmitting distribution information for reproducing the content related to the provision instruction, to a mobile terminal registered as a target of provision of the content associated with the guidance voice.

Information provision system, information provision method, and management device

A problem is to increase possibility of extracting data from sound in a system which transmits data using the sound as a transmission medium. Frames are transmitted while shifting the transmission timing among a plurality of frequency bands, whereby tolerance for multipath fading, noise mixing, or the like is obtained and improvement of a substantial transmission rate can be expected compared to a case where one frame is transmitted using only one frequency band. When selecting blocks forming a frame, since a block is selected under a condition that a time period necessary for collecting sound, on which the blocks to be selected are superimposed, becomes shorter, even if a phenomenon, in which a substantial rate of data transmission decreases, occurs, it becomes possible to suppress a decrease in rate.

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Tokyo, Japan

Shota Moriguchi