JP2002311986A - Navigator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigator on which facilities, places, areas or the like on a map related to music are easily retrieved. SOLUTION: A melody recognition section 12 converts a melody inputted by a user to melody data based on the output signals from a microphone 10. A retrieval key generating section 14 simplifies the melody and generates prescribed inputted music retrieval keys that express the features of the melody based on the melody data. A music retrieval section 18 compares and collates the inputted music retrieval keys and recorded music retrieval keys stored in a retrieval key DB 16, decides the degree of similarity and retrieves the music corresponding to the melody inputted by the user. A map DB 20 stores a table which indicates the contents of the music related to the facilities, the points and the areas. A map retrieval section 22 retrieves the facilities, the points and the areas related to the music extracted by the section 18 referring to the table stored in the DB 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for designating points, facilities, and areas on a map and performing various navigation processes related to these points.

[0002]

2. Description of the Related Art Conventionally, there have been proposed devices and systems for performing various processes by associating music with a predetermined place on a map. For example, Japanese Patent Application Laid-Open No. 8-63946 discloses that a music source (radio receiver, CD player, etc.) is associated with a predetermined point or a predetermined area on a map, and the type of the music source is determined according to the current position of the vehicle. A system for switching to play music has been disclosed.

Japanese Patent Laid-Open Publication No. Hei 8-248953 discloses that music is associated with a predetermined position or a predetermined area on a map, and when the current position of the vehicle approaches the predetermined position or enters the predetermined area, Music associated with those predetermined positions (eg, music with a local edge)
Has been disclosed which automatically reproduces music.

[0004] Since these devices need to use map information or obtain the current position of a vehicle, they are often used in combination with an in-vehicle navigation device.

[0005]

By the way, in the above-mentioned prior art, processing such as designating a location on a map, searching for music related to the location, and playing back music is performed. On the contrary, it is not possible to search for points, facilities, regions, etc. on a map related to the music by designating the content of the music.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a purpose thereof is to provide a navigation device capable of easily searching for facilities, points, areas, and the like on a map associated with music. Is to provide.

[0007]

In order to solve the above-mentioned problems, the navigation apparatus of the present invention stores map information of facilities, points, and areas associated with music information in a map information storage means. Then, the music that the user hums is collected by a microphone, and the content of the collected music is analyzed by an analysis means.A facility, a point, and an area related to the music identified by the analysis are searched for on a map. The means searches the map information stored in the map information storage means by means, and performs predetermined navigation processing by the navigation processing means using the searched facilities, points, and areas.

[0008] When the user hums the music, the content of the music is specified, and facilities, points, and the like related to the specified music are specified.
Since the area is searched, it is possible to easily search for a facility on the map associated with the music. For example, if the home position is registered as a point and the user associates his or her favorite music with the home position, the user can search for the home position by humming the music. Also,
By humming the music associated with the convenience store, navigation processing such as searching for the nearest convenience store and setting the destination as a route search destination can also be performed.

The above-described map search means determines whether the music specified by the analysis means matches the music corresponding to each of the facility, the point, and the area.
It is desirable to extract regions. A relatively simple process of judging whether or not they match each other can extract a facility or the like associated with the music hummed by the user, so that the process can be simplified.

[0010] The reproduction data storing means for storing the reproduction data including at least the leading part and the characteristic part corresponding to each of the plurality of music, and the result of analysis by the analysis means, which matches the music hummed by the user. Music search means for extracting a plurality of music pieces having a high possibility, and reading the head part and characteristic part included in the reproduction data corresponding to each of the plurality of music pieces extracted by the music search means from the reproduction data storage means to reproduce the music. And music editing means for editing the map information stored in the map information storage means using any music selected by the user after music playback by the music playback means. It is desirable to keep.

By providing the editing means, it is possible to freely customize the contents of the association between the facility, the point, the area and the music information. In addition, when performing the editing process, a user merely hums a desired music, a plurality of music having a high possibility of matching the music is extracted, and a head portion and a characteristic portion of each music are reproduced. Therefore, by listening to the reproduced sound, the desired music can be easily and reliably selected.

The music reproducing means described above provides a predetermined blank period from the end of the reproduction of one music to the start of the reproduction of the next music when reproducing the reproduction data corresponding to a plurality of music. It is desirable. Thereby, the division between one music and the next music becomes clear, and a desired music can be selected easily and reliably.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation device according to an embodiment of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 is a diagram showing a configuration of a navigation device 1 according to a first embodiment. A navigation device 1 shown in FIG. 1 includes a microphone 10, a melody recognition unit 1
2, search key creation unit 14, search key DB (database) 16, music search unit 18, map DB 20, map search unit 22, music DB 26, navigation operation processing unit 28,
The vehicle includes a vehicle position detection unit 30, a display unit 32, a speaker 33, an operation unit 34, a DB editing unit 36, and a memory card 38.

The microphone 10 collects voice input by a user and converts the voice into an electric signal. Melody recognition unit 1
2 converts the melody (melody) input by the user into digital melody data based on the electric signal output from the microphone 10. Specifically, the melody data can be obtained by performing a well-known Fourier transform process after converting an electric signal output from the microphone 10 into digital data, and extracting a time change of a frequency component, that is, a pitch. This melody data corresponds to "contents of music".

The search key creating unit 14 creates a predetermined search key that expresses the characteristics by simplifying the melody input by the user based on the melody data output from the melody recognition unit 12. In the following description, the melody recognition unit 1
The search key created based on the melody data output from Step 2 will be referred to as “input music search key”.

The search key creation unit 14 stores the music DB2
Then, based on the melody data contained in the music data, a predetermined search key that represents the main melody of the music in a simplified manner is created based on the melody data included in the music data. In the following description, a search key created based on the music data recorded in the music DB 26 will be referred to as a “recorded music search key”. Details of the processing performed by the search key creation unit 14 will be described later.

The search key DB 16 stores the search key creation unit 14
Is stored in association with information unique to the song (eg, song name or artist name). The music search unit 18 acquires the input music search key created by the search key creation unit 14 via the melody recognition unit 12, and compares the input music search key with the recorded music search keys stored in the search key DB 16. A process of searching for music corresponding to the melody input by the user is performed by comparing and matching to determine the similarity.

The map DB 20 stores predetermined map data necessary for navigation processing such as map display and route search. In addition, the map DB 20 stores information (music information) such as music names of music pieces associated with facilities, points, regions, and the like.
Is stored. Specifically, various facilities such as convenience stores and gas stations can be considered as facilities, locations of users' homes and the like can be considered as points, and administrative districts with prefectural and municipalities, or as regions, or An area composed of a plurality of prefectures, such as “XX region”, can be considered. In the following, predetermined places having some meaning on a map, such as the above-mentioned facilities, points, areas, etc., are collectively referred to as “POI (Point Of I
nterest) ". Also, these POIs
The table showing the content of the music associated with
/ Music table ". A specific example of the POI / music table will be described later.

The map search unit 22 searches for a POI associated with the music extracted by the music search processing by the music search unit 18. The song DB 26 stores song data corresponding to a plurality of songs in association with information such as song names and artist names. In the music data of the present embodiment, at least the melody data corresponding to the main melody of the music can be read independently. The melody data representing the main melody is, for example, MIDI (Musical Instrument Digital I
nterface) format data is used. The music data necessary for reproducing the music includes uncompressed audio data such as Wave format, compressed audio data such as MP3 (MPEG1 audio layer 3) format, or MID.
Various forms such as data in the I format are conceivable, and any format may be used.

The navigation operation processing section 28 performs navigation processing such as map display and route search. Further, the navigation operation processing unit 28 of the present embodiment includes a map DB
20 based on the POI / music table stored in
When a vehicle approaches a predetermined facility or point as an OI,
When a vehicle enters a POI area, the PO
A process for reproducing the music associated with I is performed. Specifically, the navigation operation processing unit 28 reads out the music data of the music associated with the POI from the music DB 26, converts this into an analog audio signal, and outputs it to the speaker 33.

The vehicle position detector 30 includes, for example, a GPS receiver, a direction sensor, a distance sensor, and the like, and detects a vehicle position (longitude, latitude) at a predetermined timing.
Output the detection result. The display unit 32 displays a map image around the vehicle position based on the image data output from the navigation operation processing unit 28.

The loudspeaker 33 outputs a reproduction sound of a music piece, an intersection guidance sound at the time of route guidance, and the like based on an audio signal output from the navigation operation processing section 28. The operation unit 34 includes various operation keys such as a joystick and a numeric keypad for instructing up, down, left, and right directions, and outputs a signal corresponding to an operation content to the navigation operation processing unit 28 or the D.
Output to the B editing unit 36.

The DB editor 36 stores the map DB 20, the music D
The content of the data stored in each of B26 is edited as needed. Specifically, the DB editing unit 36 changes the contents of the POI / song table stored in the map DB 20 and the song data for the song DB 26 in response to an operation instruction given by the user using the operation unit 34. Perform editing processing such as addition and deletion of.

The memory card 38 is a rewritable portable information storage medium.
Stores data that is the basis for performing editing processing. In the memory card 38, for example, music data obtained from a predetermined website or the like by a user connecting to the Internet or the like using a personal computer or the like (not shown) installed at home or the like is transferred and stored. You. Then, the memory card 38 is inserted into a predetermined connection slot or the like (not shown) provided in the navigation device 1, and the data stored in the memory card 38 is read out by the DB editing unit 36, and the data is stored in the predetermined DB. Editing processing is performed.

Next, details of the processing performed by the search key creation unit 14 will be described. FIG. 2 is a diagram showing a method for creating a search key (input music search key, recorded music search key). FIG. 2A shows an example of the melody data, in which the horizontal axis corresponds to time and the vertical axis corresponds to pitch.
The minimum unit of the pitch is "semitone". When such melody data is input, the search key creation unit 14
Extracts the vertices of the melody data. Specifically, FIG.
In (B), a position where the melody data is convex upward or a position where the melody data is convex downward, such as the positions indicated by (1) to (5), is extracted as a vertex.

Next, the search key creation unit 14 extracts only vertices having a pitch change larger than a predetermined value (for example, a semitone) from the previous vertex as a representative point. Specifically, FIG.
As shown in (B), the pitch change between vertex (2) and vertex (3) is only a semitone, and vertex (3) is omitted here. As a result, the vertices (2), (4), and (5) whose pitch changes between the vertex (1) and the immediately preceding vertex are larger than a semitone
Are extracted as representative points.

When the representative points are extracted, the search key creation unit 1
FIG. 4 shows a graph of FIG. 2 according to the degree of pitch change between representative points.
As shown in (C), a search key is created by expressing a change in pitch by four pieces of upper and lower branch data. The split tree data determines the degree of the pitch change between the representative points based on a predetermined threshold value, and classifies the data into four patterns of “significantly rise”, “increase”, “decrease”, and “decline significantly” It is what it is expressing. For example, if there is an increase or decrease in the pitch greater than 2.5 notes, "increase greatly"
Alternatively, it is determined that the pitch is greatly lowered, and if there is an increase or decrease in the pitch of 2.5 or less, it is determined that the pitch is raised or lowered. With such a piece of tree data, the pitch change of the melody is simplified and its characteristics are expressed.

Next, the specific contents of the POI / music table will be described. FIG. 3 is a diagram showing a specific example of the POI / music table. For example, focusing on “facility” which is one of POIs, “convenience store (convenience store) A” includes “CM song of convenience store A” which is a song used for a commercial (commercial) of convenience store A.
Is associated with. Similarly, “Convenience store B CM song” is associated with “Convenience store B” as a musical piece. As another example of the facility, XX University is associated with the school song of XX University.

Focusing on another POI "point", the user's "home position" is associated with the user's favorite song "favorite song a". Similarly, “favorite song b”, which is a favorite song of the user, is associated with the “position of friend's house” of the user.

Focusing on the other POI “region”, one of the regional divisions “Tohoku region” is associated with the “local song c” which is a tune related to the Tohoku region. In addition, the “Kanto region” is associated with the “local song d”, which is a song having a connection with the Kanto region. Similarly, “Fukushima Prefecture”, which is one of the regional divisions, is associated with “Local Song e”, which is a song related to Fukushima Prefecture, and “Tokyo” is associated with “Tokyo”. A certain song “local song f” is associated with the song.

The above-mentioned map DB 20 is used as a melody recognition unit 12, a search key creation unit 14, a search key D
B16 is the analysis means, the music search section 18, the map search section 22
Corresponds to the map search means, and the navigation operation processing unit 28 corresponds to the navigation processing means.

The navigation device 1 of the present embodiment has such a configuration, and its operation will be described next. FIG. 4 is a flowchart showing an operation procedure of the navigation device 1 when a music corresponding to the melody input by voice is specified and a POI associated with the music is searched.

When a melody is input to the microphone 10 by voice (step 100), the melody recognition unit 12 converts the input melody into predetermined melody data (step 10).
1) A predetermined process is performed on the melody data to create an input music search key (step 102).

When the input music search key is created, the music search unit 18 compares the input music search key with the recorded music search keys stored in the search key DB 16 and matches the input music search key. A music piece including a recorded music search key is extracted (step 103). Here, the similarity between the input music search key and the recorded music search key is determined, and a predetermined value (for example, 80
%) Is determined to be a “tune that matches the melody”.

When one or a plurality of music pieces are extracted, the map search unit 22 outputs the P associated with the extracted music pieces.
An OI is searched based on the POI / song table stored in the map DB 20 (step 104). When the search result of the POI associated with the music is obtained, the navigation operation processing unit 28 displays the search result on the display unit 32 (Step 105). Specifically, the navigation operation processing unit 28 outputs a plurality of POs obtained as a search result.
Processing such as displaying I as a list or highlighting facilities and the like corresponding to the POI on a map is performed.

Next, the navigation operation processing unit 28
It is determined whether any POI has been selected by the user (step 106). As long as no POI is selected, the determination in step 106 is repeated. When one POI is selected, an affirmative determination is made in step 106, and then the navigation operation processing unit 28 determines whether or not the user has instructed execution of various processes using the selected POI. Is determined (step 107).
The various processes using the POI include, for example, a route search process in which a point or the like corresponding to the POI is set as a destination, and a music reproduction process when a vehicle approaches (or enters) the POI. The determination process in step 107 is repeated while execution of various processes is not instructed.

When execution of various processes is instructed, an affirmative determination is made in step 107, and the navigation operation processing unit 28 performs a predetermined navigation process corresponding to the given instruction (step 108). As described above, in the navigation device 1 according to the first embodiment, when the user hums the melody included in the tune (inputs voice), the tune corresponding to the melody is identified and associated with the tune. Since the POI (facility, point, area) is searched, it is possible to easily search for a facility on a map associated with music.

[Second Embodiment] FIG. 5 is a diagram showing a configuration of a navigation device 1A according to a second embodiment. The navigation device 1A shown in FIG. 5 has basically the same configuration as the navigation device 1 of the above-described first embodiment, and includes a sample sound creation unit 40 and a sample sound reproduction unit 4.
2 is added. In the following, description will be made mainly focusing on these differences.

When a plurality of music pieces are extracted by the music search section 18 corresponding to the melody input by the user, the sample sound creation section 40 converts the sample data for previewing the plurality of music pieces into music. It is created using the music data stored in the DB 26. When the user who has listened to the sample sound reproduced based on the sample data created by the sample sound creation unit 40 gives an operation instruction to select one piece of music, the DB editing unit 36 reads this piece of music. Map DB20 using
Is performed to edit the contents of the POI / song table stored in.

The sample sound reproducing section 42 reproduces the sample data created by the sample sound creating section 40 and outputs an analog audio signal to the speaker 33. Music DB2 described above
6 corresponds to the playback data storage unit, the music search unit 18 corresponds to the music search unit, the speaker 33, the sample sound creation unit 40, the sample sound playback unit 42 corresponds to the music playback unit, and the DB editing unit 36 corresponds to the editing unit. I have.

The navigation device 1A of the second embodiment
Has such a configuration, and its operation will be described next. FIG. 6 is a flowchart showing an operation procedure of the navigation device 1A when creating preview data for previewing the outline contents of a plurality of music pieces. Also, FIG.
It is a figure which shows the preparation procedure of the data for trial listening schematically.

When a plurality of songs are extracted by the song search unit 18 based on the melody uttered by the user and a plurality of songs are extracted, the sample sound creation unit 40 determines the result of the song search by the song search unit 18. (Step 20)
0). Next, the sample sound creation unit 40 pays attention to one song included in the song search result, and reads song data and phrase delimiter data corresponding to the song (step 20).
1).

As shown in FIG. 7A, in the music DB 26, a plurality of music data and a predetermined phrase delimiter indicating a delimiter position of a plurality of phrases included in each music are stored in correspondence with the plurality of music. Data is stored. Specifically, the above-mentioned phrase refers to a component of a predetermined unit that constitutes one piece of music, such as a prelude portion, a singing portion, a characteristic portion, and an interlude portion of the song. For example, in the example shown in FIG. 7A, one piece of music is composed of four phrases A, A ', B, and A. In the following description, the preamble or sing-out part of the music will be referred to as "sawwari", and the characteristic part of the music will be referred to as "chorus". FIG.
In the example shown in (A), it is assumed that the phrase A corresponds to "saw" and the phrase B corresponds to "rust".
Note that, depending on the music, there may be a plurality of phrases that can be a characteristic portion. In such a case, a plurality of phrases corresponding to chorus may be set.

When the music data and the phrase delimiter data are read, the preview sound creation unit 40 uses these data to convert the partial music data corresponding to the sourry and rust of the music as shown in FIG. For a predetermined time (for example, 1
(For 0 seconds) (step 202).

Next, as shown in FIG. 7 (C), the preview sound creation unit 40 connects the partial music data extracted in step 202 (step 203). In the following description, the partial music data extracted corresponding to the soli and rust portions will be referred to as “phrase data”.

Thereafter, the preview sound creation section 40 determines whether or not there is any music that has not yet been processed (unprocessed music) (step 204). Returning to step 201 described above, the processing from step 201 onward is repeated focusing on a new song.

If there is no unprocessed music, a negative judgment is made in step 204 described above, and the trial sound creation unit 40 extracts each phrase data extracted corresponding to each of the plurality of music. Then, predetermined trial listening data is created (step 205).

FIG. 8 is a diagram showing the data structure of the trial listening data. In the trial listening data shown in FIG.
Indicates the number of music pieces included in the trial data, and “the number of samples per phrase” indicates the number of sample points included in music data (phrase data) for one phrase. Hereinafter, the “number of phrases” indicating the number of extracted phrases and the phrase data necessary to reproduce each phrase are grouped and stored in order for each song. For example, for the first song, 2
One phrase data is stored. For the second music, three phrase data are stored because there are two characteristic phrases.

Next, an operation procedure of the navigation device 1A when reproducing the sourry portion and the chorus portion of a plurality of music pieces based on the trial listening data will be described. FIG. 9 is a flowchart showing the operation procedure of the navigation device 1A when reproducing the sourry portion and the chorus portion of a plurality of music pieces.

The sample sound reproducing section 42 obtains the sample data created by the sample sound creating section 40 (step 3).
00). Next, the sample sound reproducing unit 42 starts a process of reproducing a plurality of songs stored in the sample data in the order of storage.
Specifically, first, the audition sound reproducing unit 42 pays attention to one song, reads a plurality of phrase data stored corresponding to the song, and performs a fade-in process at the beginning of the phrase for each phrase, A plurality of phrases are reproduced while performing fade-out processing at the end of the phrase (step 301). The “fade-in process” refers to a process of gradually increasing the volume until a predetermined volume is reached, and the “fade-out process” refers to a process of gradually decreasing the volume until the volume becomes almost silent. .

Further, the DB editing unit 36 determines whether or not an instruction to select the currently reproduced music has been given by the user based on the signal output from the operation unit 34 (step 302). . If no instruction to select is made, a negative determination is made in step 302, and then the sample sound reproduction unit 42 determines whether reproduction of the sample sound for one music piece (one music piece) has been completed. Is determined (step 303). If the reproduction of one song has not been completed, a negative determination is made in step 303, and in this case, the above-described step 30 is performed.
Returning to step 1, the phrase reproduction process and subsequent processes are continued.

When the reproduction of the sample sound for one song has been completed, an affirmative judgment is made in step 303, and the sample sound reproducing unit 42 judges whether or not the next song exists (step S303). 304). If the next song is present, an affirmative determination is made in step 304, and the preview sound reproducing unit 42 determines that a predetermined blank period Tr between the end of the reproduction of the previous song and the start of the reproduction of the next song. Is inserted (step 305), and thereafter, the process returns to the above-described step 301, and the reproduction process of the preview sound of the next music and the subsequent processes are repeated.

If an operation instruction to select the music is given during the reproduction of the sample sound corresponding to one music, an affirmative determination is made in step 302 described above and the DB is determined.
The editing unit 36 obtains from the sample sound playback unit 42 the number of the song currently being played, and checks the music search result obtained from the music search unit 18, and (Step 30)
6).

Thereafter, the DB editor 36 edits the contents of the POI / song table stored in the map DB 20 according to the user's operation instruction using the specified song (step 307). . Specifically, a process of associating the specified music with the POI specified by the user is performed.

FIG. 10 is a diagram showing the state of the reproduced sound when reproducing the head part and characteristic part of a plurality of music pieces. In FIG. 10, the vertical axis indicates the volume, and the horizontal axis indicates the elapsed time during reproduction. As shown in FIG.
Uses the phrase data corresponding to the first tune to reproduce the sourry and chorus portions of the tune.
At this time, a fade-in process and a fade-out process are performed before and after the sourry portion and before and after the rust portion.

After the reproduction of each phrase of the first music is completed, the reproduction of the first phrase of the second music is started after a predetermined blank period Tr is inserted. In the example shown in FIG. 10, since the second piece of music contains two chorus parts 1 and 2, three phrases are reproduced together with the sourry part. Further, the above-described fade-in process and fade-out process are performed on each phrase. As described above, the fade-in process and the fade-out process are performed for each phrase, a predetermined blank period Tr is inserted between the songs, and the reproduction of the preview sound is performed.

As described above, in the navigation device 1A of the second embodiment, when editing the contents of the association between the facility, the point, the area and the music information, the user merely hums the melody included in the desired music. Then, a plurality of music pieces that are likely to match the music desired by the user are extracted, and the phrases of the sourry part (head part) and the rust part (characteristic part) of each music are reproduced. By listening to the reproduced sound, the user can easily and reliably select a desired music.

In particular, when playing back the solitary and chorus portions of a plurality of songs, a predetermined blank period Tr is provided between the end of the playback of one song and the start of the playback of the next song. The division between one music piece and the next music piece becomes clear, and a desired music piece can be easily and reliably selected. Furthermore, when playing back each phrase corresponding to the sourry portion and the chorus portion, the fade-in process is performed at the start portion of the phrase and the fade-out process is performed at the end portion of the phrase. There are advantages too.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, in the above-described embodiment, one song is basically associated with one POI. However, a plurality of POIs may be grouped together and one song may be associated with this group. Good. For example, if one song is associated with a plurality of POI groups extracted from the viewpoint of “resting place”, when searching for a resting place while driving, by humming the melody included in this song, In addition, it is possible to easily perform an operation of searching for a plurality of POIs corresponding to a rest place and selecting a desired POI.

In the second embodiment described above, when reproducing the trial listening data, the start of the reproduction start position is performed in a phrase unit or a music unit corresponding to a predetermined operation instruction. The operability may be further improved. For example, when a predetermined operation instruction is given using the operation unit 34 while a certain phrase is being reproduced, the audition sound reproducing unit 42 stops the reproduction of the currently reproduced phrase and starts the reproduction of the next phrase. I just need. The same applies to cueing in music units. When a predetermined operation instruction is given using the operation unit 34 during reproduction of any of the phrases of the first music, the audition sound reproduction unit 42 outputs the currently reproduced phrase. May be stopped, and the phrase included in the next music piece may be reproduced. As a result, the user can omit the reproduction of the phrase determined to be unnecessary to listen to, and can reduce the time required for the trial listening.

In each of the above-described embodiments, a predetermined DB
Although the music data and the like that are the source of the editing process are imported to the navigation device via the memory card 38, by connecting to the Internet via a mobile phone or the like, the navigation device can access from a predetermined website or the like. You may make it acquire music data etc. directly.

[0062]

As described above, according to the present invention, when a user utters desired music, the content of the music is specified, and facilities, points, and areas related to the specified music are searched. Therefore, it is possible to easily search for facilities and the like on a map associated with music.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a navigation device according to a first embodiment.

FIG. 2 is a diagram illustrating a method for creating a search key.

FIG. 3 is a diagram showing a specific example of a POI / music table.

FIG. 4 specifies music corresponding to the melody input by voice,
9 is a flowchart showing an operation procedure of the navigation device when searching for a POI associated with the music.

FIG. 5 is a diagram illustrating a configuration of a navigation device according to a second embodiment.

FIG. 6 is a flowchart showing an operation procedure of the navigation device when creating preview data for previewing the outline contents of a plurality of songs.

FIG. 7 is a diagram schematically showing a procedure for creating trial listening data.

FIG. 8 is a diagram showing a data structure of trial listening data.

FIG. 9 is a flowchart showing an operation procedure of the navigation device when reproducing a sourry portion and a chorus portion of a plurality of music pieces.

FIG. 10 is a diagram showing a state of a reproduced sound when reproducing a head portion and a characteristic portion of a plurality of music pieces.

[Explanation of symbols]

 1, 1A Navigation device 10 Microphone 12 Melody recognition unit 14 Search key creation unit 16 Search key DB (database) 18 Music search unit 20 Map DB 22 Map search unit 26 Music DB 28 Navigation operation processing unit 30 Vehicle position detection unit 32 Display unit 33 Speaker 34 Operation unit 36 DB editing unit 38 Memory card 40 Sample sound creation unit 42 Sample sound reproduction unit

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) G08G 1/0969 G09B 29/00 A 5D077 G09B 29/00 G11B 27/10 M 5H180 G10L 15/10 G10L 3/00 551Q 15 / 28 531N G11B 27/10 551J F-term (reference) 2C032 HB05 HB06 HB22 HC08 HC13 HC16 HC31 HD07 HD11 HD16 2F029 AA02 AB01 AB07 AB13 AC02 AC14 AC18 3D020 BA02 BA04 BA09 BA10 BA11 BC02 BD05 BE01 5B075U02A07 PP02 PP07 KK01 5D077 AA26 AA28 BB08 CB07 5H180 AA01 BB12 FF04 FF05 FF22 FF25 FF27 FF32

Claims (4)

[Claims] 1. A facility, a point,
Map information storage means for storing map information of a region; a microphone for collecting music hummed by a user; analysis means for analyzing the content of music collected by the microphone; and identification by analysis by the analysis means Map search means for searching the map information stored in the map information storage means for facilities, points, and areas related to the music performed; and the facilities, points searched by the map search means,
A navigation device comprising: a navigation processing unit that performs a predetermined navigation process using a region. 2. The map search unit according to claim 1, wherein the map search unit determines a match between the music specified by the analysis unit and music corresponding to each of the facility, the point, and the area. A navigation device for extracting points and areas. 3. The user according to claim 2, wherein a reproduction data storage unit that stores reproduction data including at least a head portion and a characteristic portion corresponding to each of the plurality of music, and an analysis result by the analysis unit. Music search means for extracting a plurality of music having a high possibility of matching the hummed music, the head portion included in the reproduction data corresponding to each of the plurality of music extracted by the music search means, and A music playback unit that reads a characteristic portion from the playback data storage unit to play back music, and stores the music information in the map information storage unit using any music selected by a user after the music playback by the music playback unit. Editing means for editing the map information that has been entered. 4. The music reproducing device according to claim 3, wherein, when reproducing the reproduction data corresponding to the plurality of music, after the reproduction of one music ends, a reproduction of the next music starts. A predetermined blank period is provided in the navigation device.