JP4651402B2 - In-vehicle information terminal - Google Patents

Description

  The present invention relates to an in-vehicle information terminal having a function of recording music data on a hard disk and reproducing and outputting the data as necessary.

  In addition to a navigation function for guiding a vehicle to a destination, an in-vehicle navigation device having a function of taking music data from a music CD, recording it on a hard disk (HDD), and reproducing and outputting it as necessary is known. (Non-Patent Document 1).

JPO Standard Technology Collection “Car Navigation Device User Interface” Main Category 6-C-1a

  In the apparatus disclosed in Non-Patent Document 1, as the amount of music recorded on the HDD increases, it becomes difficult for the user to search for music that the user wants to listen to. Therefore, when the user specifies a part of the song name or artist name as a search keyword, the user can easily find the song that the user wants to listen to by searching for and extracting songs that contain the search keyword in the song name or artist name. There is. However, if you want to search for a song whose song name or artist name is a single character, if you use that single character as a search keyword, all songs that contain that search keyword's single character in the song name or artist name will be searched. Many songs are extracted. In order to solve such a problem, there is a demand for an apparatus that can appropriately search for a song having a single character name for the song name or artist name.

The in-vehicle information terminal according to the first aspect of the invention relates to a recording means for recording music data in units of music by associating at least one of a specific artist name, track name, or album name with each music piece, Input means for inputting a keyword for searching for any of the music pieces, and search means for searching for music from the recording means based on the keyword input by the input means. When a single character is entered, an exact match search is performed to search the recording means for a song associated with at least one of the artist name, track name, or album name that exactly matches the keyword entered by the input means. If two or more characters are input by the input means, they are input by the input means. Artist name includes keyword, and performs partial matching of searching from the recording means associated musical composition to at least one of the track name or album name.

  According to the present invention, at least one of a specific artist name, track name, or album name is associated with each song, and music data is recorded in units of songs such as albums and tracks. Then, a keyword is input, and music is searched based on the keyword. At this time, the music search method is switched between when only one character is input as a keyword and when two or more characters are input. Since it did in this way, when a keyword is one character, the search method suitable for it can be used. Therefore, it is possible to appropriately search for a song whose song name or artist name is one character.

  FIG. 1 shows the configuration of an in-vehicle navigation device with a music data recording / playback function according to an embodiment of the present invention. The navigation device 1 has a general navigation function for guiding a vehicle to a destination by displaying a recommended route from the departure point to the destination on a map. In addition, it has a recording / playback function for music data that is recorded and recorded from a music CD, and played back and output as needed. As shown in FIG. 1, the navigation device 1 includes a navigation unit 10, a music data recording / reproducing unit 11, a monitor 12, an HDD 13, and a CD / DVD drive 14. The music data recording / reproducing unit 11 is connected to an audio device 2 for outputting an input audio signal to a speaker (not shown) to output audio.

  The navigation unit 10 detects the current location of the host vehicle based on an arithmetic processing unit 101 configured using a microprocessor, a ROM, a RAM, and the like, and a GPS signal received from a GPS satellite and a detection result of the motion state of the host vehicle. A current location detection unit 102 and an input operation unit 103 for receiving a request input from the user. When the destination is set by the user via the input operation unit 103, the current location is detected using the current location detection unit 102, and then the map data recorded in the HDD 13 is read out by the arithmetic processing unit 101 to perform well-known navigation. Process. In this way, the navigation unit 10 obtains a recommended route from the current location to the destination, and displays a map for guiding the vehicle to the destination on the monitor 12, thereby realizing a navigation function in the navigation device 1.

  As described above, the user can request the navigation device 1 to execute the navigation function by setting the destination by operating the input operation unit 103. Further, the user can request the navigation apparatus 1 to execute the recording / playback function of music data by operating the input operation unit 103. When a request for the music data recording / playback function is made by the user, the content of the request is notified to the music data recording / playback unit 11. As the input operation unit 103, for example, a touch panel integrated with the monitor 12, a remote controller, or the like can be used.

  The music data recording / reproducing unit 11 is a component for executing recording / reproducing processing of music data in response to a request from the user, and includes a control unit 111 and a reproduction output unit 112. When recording music data, the control unit 111 controls the HDD 13 and the CD / DVD drive 14 to read music data from the music CD set in the CD / DVD drive 14 and write it to the HDD 13. Such a process is called ripping. The written music data is recorded on the HDD 13 in units of music.

  On the other hand, when playing back music data, either the music data recorded on the HDD 13 by the above-described ripping process or the music data recorded on the music CD set in the CD / DVD drive 14 is stored in the music. Can be played in units. The control unit 111 controls either the HDD 13 or the CD / DVD drive 14 to read the music data, and the reproduction output unit 112 converts the music data into an audio signal, whereby the audio signal is output to the audio device 2. The music is reproduced and output from the speaker. At this time, the ripping process can be performed in parallel with the reproduction of the music CD.

  When recording music data in the HDD 13, the song name (track name) and artist name are also recorded. It is also possible to record in the HDD 13 in units of albums in which a plurality of songs are combined. In this case, the album name is also recorded together with the track name. Note that it is sufficient that at least one of the artist name, the track name, and the album name is recorded together with the music data, and not all of them are required. That is, the HDD 13 records music data in units of music by associating each music with at least one of a specific artist name, track name, or album name.

  The user operates the input operation unit 103 to input characters included in any of the artist name, track name, or album name as keywords, thereby reproducing what is desired to be reproduced from the music data recorded on the HDD 13. The navigation device 1 can be searched. At this time, in the navigation apparatus 1, the search method is switched between when a single keyword is input and when two or more characters are input.

  When only one character is input as a keyword, the HDD 13 is searched for a music piece having exactly the same artist name, track name, or album name as the one-character keyword. That is, the HDD 13 searches the HDD 13 for music associated with at least one of the artist name, track name, and album name that completely matches the keyword. For example, when the letter “A” is input as a keyword, a song whose artist name, track name, or album name is “A” is searched.

  On the other hand, when two or more characters are input as a keyword, a song having any one of an artist name, a track name, and an album name that partially matches the two-character keyword is searched from the HDD 13. That is, the HDD 13 is searched for a song associated with at least one of the artist name, the track name, and the album name including the keyword. For example, when a character “B” is input as a keyword after “A”, a song including a character string “AB” in any of the artist name, track name, or album name is searched. Thus, by switching the search method according to the number of characters of the keyword, it is possible to easily search for the music that the user wants to search from among the many music recorded in the HDD 13.

  The manner in which the search method is switched as described above will be described using the display screen examples of FIGS. FIG. 2 shows an example of a screen when only one character is input as a keyword. When the user selects the button “A” from the input button group 21 in which various buttons such as alphabets and numbers are arranged, one letter “A” is input as a keyword, and “A” is displayed in the keyword display field 22. Is done. Then, a song whose artist name, track name or album name completely matches “A” is searched from the HDD 13, and the number is displayed in the number display column 23. In this example, since “1” is displayed in the number display column 23, it can be seen that one piece of music whose artist name, track name, or album name is “A” has been searched.

  After searching for a piece of music that exactly matches a one-character keyword, when the user selects the display button 24 labeled “Display” on the screen of FIG. 2, the screen shown in FIG. 3 is displayed. In addition, by selecting the cancel button 25 described as “return”, the user can delete the input keyword one character at a time as necessary. Further, by selecting an input mode conversion button 26 labeled “Kana”, it is possible to switch to a screen for Kana input. Furthermore, a plurality of keywords can be input by selecting a plurality of keyword designation buttons 27 labeled “AND”.

  FIG. 3 is an example of a screen displaying the search result by the keyword “A”, and shows an example in which the album name matches the keyword “A”. The mark indicated by reference numeral 28 is a mark (album mark) for indicating that the displayed item is not a track but an album. Here, an example is shown in which the album name matches the keyword, but the track name or artist name may match the keyword. When displaying the track name instead of the album name, it is preferable not to display the album mark 28 but to display the track name instead. In this way, the user can determine at a glance whether an album or a track is displayed. By selecting one of the albums or tracks searched in this way, the user can instruct the navigation apparatus 1 to reproduce and output the album or track.

  On the other hand, if the user does not find the target album or track and wishes to continue the search, the user can return to the screen of FIG. You can continue typing.

  FIG. 4 shows an example screen when two or more characters are input as a keyword. As in FIG. 2, when the keyword “Wa” is input by the input button group 21, “Wa” is displayed in the keyword display field 22. Then, a song including “Wa” in any of the artist name, track name, or album name is searched from the HDD 13, and the number is displayed in the number display column 23. In this example, since “73” is displayed in the number display column 23, it can be seen that 73 pieces of music containing “Wa” in any of the artist name, the track name, or the album name have been searched.

  When the keyword “Wai” is further input by continuing to input the keyword, the search result is narrowed down and a screen as shown in FIG. 5 is displayed. Here, since “2” is displayed in the number display column 23, it can be understood that two music pieces including “Wai” in any of the artist name, the track name, and the album name are searched. When the display button 24 is selected by the user on this screen, the screen shown in FIG. 6 is displayed next.

  FIG. 6 is an example of a screen displaying the search result by the keyword “Wai”, and shows an example in which the keyword “Wai” is included in the track name. In this example, the track names are “Waiting & Look” and “Waiting for you”. Although an example in which a keyword is included in the track name is shown here, a keyword may be included in the album name or artist name.

  When the user selects, for example, “Wait & Look” from the two tracks searched as described above, as shown in FIG. 7, the portion is highlighted so that it can be recognized. Thus, by selecting any one of the searched albums and tracks, the user can instruct the navigation apparatus 1 to reproduce and output the albums and tracks.

  FIG. 8 shows a flowchart for executing the processing as described above. This flowchart is executed by the control unit 111. In step S1, a keyword is input. This is performed when the user inputs any character using the input button group 21 as described above. When a keyword is input by the user, the process proceeds to the next step S2.

  In step S2, it is determined whether or not the keyword input in step S1 is the first character. If it is the first character, that is, if only one character is input as the keyword, the process proceeds to step S3. In step S3, a complete match search process is performed to search the HDD 13 for a song that exactly matches the keyword in which any of the artist name, track name, or album name is input. The contents of this processing will be described in detail later using FIG.

  On the other hand, if it is determined in step S2 that the first character is not the first character, that is, if two or more keywords are input, the process proceeds to step S4. In step S4, a partial match search process is executed to search the HDD 13 for a song whose input keyword is included in any of the artist name, track name, or album name. The contents of this process will be described in detail later using FIG. If either the complete match search process of step S3 or the partial match search process of step S4 is executed, the process proceeds to step S5.

  In step S5, it is determined whether to display the search result in step S3 or S4. This determination is performed by detecting which one of the display button 24 and the input button group 21 is pressed by the user. When the display button 24 is pressed, it is determined that the search result is displayed, and the process proceeds to step S6. If any button of the input button group 21 is pressed, it is determined that the search result is not displayed, the process returns to step S1, and characters corresponding to the button are input following the keyword.

  In step S6, the search results are displayed as a list. As a result, as shown in FIG. 3 or FIG. 6, albums or tracks searched based on the input keyword are displayed in a list. In the next step S7, it is determined whether any of the albums or tracks displayed in step S6 has been selected by the user. If it is selected, the process proceeds to step S8. In step S8, the album or track is highlighted as shown in FIG. 7, and the flowchart of FIG. 8 is ended. The album or track selected in this way is reproduced and output. On the other hand, if the input screen movement button 29 is pressed in step S7, the process returns to step S1 and the above process is repeated to continue inputting keywords.

  Next, the contents of the exact match search process executed in step S3 of FIG. 8 will be described using the flowchart of FIG. In step S30, one of the songs recorded on the HDD 13 is selected. At this time, the recorded music is selected in units of albums or tracks. In step S31, it is determined whether or not any of the artist name, album name, and track name of the music selected in step S30 is one character. If at least one is a single character, the process proceeds to step S32. If none is a single character, the process proceeds to step S34.

  In step S32, it is determined whether or not the keyword input in step S1 in FIG. 8 completely matches any of the artist name, album name, and track name of the music selected in step S30. When at least one of them completely matches, the process proceeds to step S33, and when none of them completely matches, the process proceeds to step S34.

  In step S33, the music selected in step S30 is extracted as a target album (when selected in units of albums) or target track (when selected in units of tracks), and the number of searches is incremented by one. In this way, a piece of music in which any of the artist name, album name, and track name is one character and exactly matches the input keyword is extracted, and the number of cases is counted. The number thus counted is displayed in the number display column 23, and the artist name, album name, and track name of the extracted music are displayed in a list in step S6 of FIG.

  In step S34, it is determined whether or not all the songs recorded on the HDD 13 in step S30 have been selected. If all are selected, the flowchart of FIG. 9 is terminated, and if there is a song that has not yet been selected, the process returns to step S30. As described above, a song having an artist name, track name, or album name that completely matches the input keyword is searched from the HDD 13.

  Next, the content of the partial match search process executed in step S4 of FIG. 8 will be described using the flowchart of FIG. In step S40, as in step S30 of FIG. 9, one of the songs recorded on the HDD 13 is selected in units of albums or tracks. In step S41, it is determined whether or not the keyword input in step S1 of FIG. 8 is included in any of the artist name, album name, and track name of the music selected in step S40. If it is included in at least one, the process proceeds to step S42, and if not included in any, the process proceeds to step S43.

  In step S42, as in step S33 of FIG. 9, the music selected in step S40 is extracted as the target album (when selected in units of albums) or target track (when selected in units of tracks), and the number of searches is 1 Count up. In this way, music pieces that include the input keyword in any of the artist name, album name, and track name are extracted, and the number of the songs is counted. The number thus counted is displayed in the number display column 23, and the artist name, album name, and track name of the extracted music are displayed in a list in step S6 of FIG.

  In step S43, it is determined whether or not all the songs recorded on the HDD 13 in step S40 have been selected. When all are selected, the flowchart of FIG. 10 is ended, and when there is a music piece not yet selected, the process returns to step S40. As described above, the music of the artist name, track name or album name including the input keyword is searched from the HDD 13.

According to the embodiment described above, the following operational effects can be obtained.
(1) In the HDD 13, at least one of a specific artist name, track name, or album name is associated with each song, and music data is recorded in units of songs such as albums and tracks. Then, a keyword is input (step S1), and music is searched from the HDD 13 based on the keyword (steps S3 and S4). At this time, the music search method is switched between when only one character is input as a keyword and when two or more characters are input (step S2). Since it did in this way, when a keyword is one character, the search method suitable for it can be used. Therefore, it is possible to appropriately search for the target music whose song name or artist name is one character from among many music recorded in the HDD 13.

(2) When only one character is input as the keyword, the HDD 13 searches the HDD 13 for a song associated with at least one of the artist name, the track name, and the album name that completely matches the input keyword (step S3). . When two or more keywords are input, the HDD 13 searches the HDD 13 for music associated with at least one of the artist name, track name, and album name including the input keyword (step S4). Since it did in this way, an appropriate search method can be used according to the number of characters of a keyword.

  In the above-described embodiment, an example in which music data is read from a music CD and written to the HDD has been described. However, the present invention is not limited to a general commercial music CD, but a CD-R, MD, DVD, Alternatively, music data can be read from various recording media such as various memory cards. Further, an analog audio signal from a radio or television may be taken in, converted to data by analog / digital conversion, and then written to the HDD.

  In the above embodiment, an example of combining with a navigation device has been described. However, the present invention can also be applied to various in-vehicle information terminals having no navigation function, such as a car audio device.

  In the above embodiment, the recording means is realized by the HDD 13, and the other means are realized by processing steps in the control unit 111. However, the present invention is not limited to the above-described embodiment, and other modes conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention.

It is a figure which shows the structure of the vehicle-mounted navigation apparatus with a music data recording / reproducing function by one Embodiment of this invention. It is an example of a display screen when only one character is input as a keyword. It is an example of a display screen of a search result by a single character keyword. It is an example of a display screen when two or more keywords are input. Furthermore, it is an example of a display screen when a keyword is input. It is an example of a display screen of a search result by a keyword of two characters or more. It is an example of a screen in which a selected portion is highlighted. It is a flowchart performed when inputting a keyword and searching a music from HDD. It is a flowchart for demonstrating the content of an exact match search process. It is a flowchart for demonstrating the content of a partial matching search process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Audio apparatus 10 Navigation part 11 Music data recording / reproducing part 12 Monitor 13 HDD
14 CD / DVD drive 101 arithmetic processing unit 102 current position detection unit 103 input operation unit 111 control unit 112 reproduction output unit

Claims (1)

Recording means for associating at least one of a specific artist name, track name, or album name with each song, and recording music data in units of songs,
Input means for inputting a keyword for searching for any of the music recorded in the recording means;
Search means for searching for music from the recording means based on the keyword input by the input means ,
The search means includes
When only one character is input as the keyword by the input means, the music associated with at least one of the artist name, track name, or album name that completely matches the keyword input by the input means is recorded. Perform an exact match search from the means,
When the input means inputs two or more characters of the keyword, the recording means stores music associated with at least one of the artist name, the track name, and the album name including the keyword input by the input means. An in-vehicle information terminal characterized by performing partial match search from

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