JP2006313619A - Content-reproducing device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content-reproducing device which automatically selects contents such as musical compositions and sequentially reproduces the contents so that a user may not get tired of the content even if the user repeatedly uses the content. <P>SOLUTION: This is an on-vehicle content-reproducing device 10 which reproduces contents including music. In addition, the device is provided with; a history data accumulation part 13 which accumulates history data 131a including vehicle-travel histories and information indicating musical compositions which a user listens to when driving; an correlation extraction part 15 which specifies a kind of a musical composition closely relating to the present traveling state, when a vehicle is traveling, by referring to the history data 131a accumulated by the history data accumulation part 13; a musical composition selection part 16 which selects a musical composition belonging to the specified kind; and a reproduction part 18 which reproduces the selected musical composition. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus for reproducing content such as music, and more particularly to an apparatus for automatically selecting and reproducing music.

  Car navigation devices and car audio devices have built-in hard disks and the like, and it has become possible to store a large amount of content such as music. However, along with the increase in the capacity of such storage devices, when it is desired to listen to music while traveling, it takes time to search for music. Every time a song finishes playing, it is very difficult to search for the next song you want to play.

  Conventionally, as a technique for supporting such music search, a “music playback device” or the like has been proposed (see Patent Document 1). According to this music reproducing apparatus, music that is associated in advance is automatically searched according to the time zone.

As another conventional technique, a “music selection method and apparatus” has been proposed (see Patent Document 2). According to this method and apparatus, music that is associated in advance is automatically recommended according to the point where the user is traveling in a car.
JP 2002-55993 A JP 2003-84774 A

  However, the above conventional technique has a problem that it cannot be said that the music search service is sufficiently satisfactory for the user.

  In other words, if the music associated with the time zone or travel point is fixedly selected, the same music is selected if the time zone or travel point is the same, and the same route as in commuting by car. When running at the same time, there is a problem that the same music is always selected and gets tired.

  Therefore, the present invention has been made in view of such problems, and content such as music is automatically selected and sequentially played back so as not to get bored even when the user repeatedly uses it. An object of the present invention is to provide a content reproducing apparatus that can be used.

  In order to achieve the above object, a content reproduction apparatus according to the present invention is a content reproduction apparatus that reproduces content including music, and includes history data including a travel history of a car and information indicating a song that was listened to during travel. Identifying music data that has a strong correlation with the current driving situation by referring to the history data storage means that stores the history data stored in the history data storage means when the vehicle is traveling Means for reproducing a music piece belonging to the specified type, and destination prediction means for predicting a destination from the travel history and the current travel situation, the music specifying means comprising the destination prediction It is characterized in that the type of music having a strong correlation with the current running situation including the destination predicted by the means is specified. This extracts the correlation between the route and destination, etc. and the characteristics of the song you listen to (genre, artist, etc.), and music is automatically played according to the route and destination you are about to run. Is prevented from being repeatedly played, and the user is never bored.

  The present invention can be realized not only as a content playback device, but also as a content playback method, as an automatic music selection device that automatically selects a performance from a plurality of contents, It can also be realized as a program to be executed by a computer. Needless to say, such a program can be distributed via a recording medium such as a CD-ROM or a transmission medium such as the Internet.

  According to the in-vehicle content playback apparatus of the present invention, the past travel history (route, time, etc.) and the history of the song that was listened to at that time are accumulated, and the characteristics of the song that was listened to the route, destination, etc. Correlation with (genre, artist, etc.) is extracted, and music is automatically played according to the route and destination that you are going to run.

  Therefore, even if the user repeatedly uses it, he / she can enjoy it forever without getting bored.

  As described above, according to the present invention, fresh contents are always automatically selected and reproduced, and the practical value of the present invention is extremely high particularly as an in-vehicle content reproducing apparatus that requires relaxation and safe driving.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
First, the first embodiment of the present invention will be described.

  FIG. 1 is an external view of an in-vehicle content playback apparatus 10 according to the present embodiment. This in-vehicle content reproduction apparatus 10 is an in-vehicle apparatus that is used in a state where it is integrated with or connected to a car navigation apparatus or a car audio apparatus, and a past travel history (route, time, etc.) The history of the song that was being listened to at that time is accumulated, and the correlation between the route and destination, etc., and the characteristics of the song being listened to (genre, artist, etc.) is extracted, and the route or destination that you are going to run from now on. It is a device that automatically plays the corresponding music.

  FIG. 2 is a functional block diagram showing the configuration of the in-vehicle content playback apparatus 10. This in-vehicle content playback apparatus 10 has two functions, that is, a function for accumulating a travel history, and a function for automatically selecting and reproducing a music based on the accumulated travel history. A map data storage unit 11, a situation detection unit 12, a history data storage unit 13, a destination prediction unit 14, a correlation extraction unit 15, a music selection unit 16, a music content storage unit 17, a playback unit 18, and a speaker 19 are provided.

  The map data storage unit 11 is a hard disk or the like that stores map data 11a used for a car navigation device (not shown), a node database 11b for specifying a travel route, and the like. As shown in FIG. 3, the node database 11b records the “node number”, “type, name”, “east longitude”, and “north latitude” for each node, with major points set in advance in the country as nodes. It is a database.

  The situation detection unit 12 includes a vehicle at that time and various sensors that detect the situation where the car is placed, and detects an engine state (start / stop), a car position, a driver, a passenger, weather, and the like. To do. Specifically, the engine state is detected from the position of the engine key, the current position is detected by the GPS provided in the car navigation device, the date and time is detected by a built-in calendar timer, and the seating sensor incorporated in each seat The driver's seat and the driver's seat from the seat position of the driver's seat, the mirror adjustment position, the ID signal from the infrared transmitter integrated with the engine key, the ID or telephone number by the wireless signal from the mobile phone owned by the rider Detect the person and detect the weather from the wiper's operating state, raindrop sensor, temperature / humidity sensor, etc.

  The history data storage unit 13 includes a history data storage unit 131. Based on the status signal sent from the status detection unit 12, the music selection signal sent from the reproduction unit 18, and the like, the history data storage unit 13 listens to the driving status and the time. This is a processing unit that accumulates the history data 131 a in association with the music that has been stored in the history data storage unit 131. As shown in FIG. 4, the history data 131a is a collection of information related to the music that has been run and played from when the engine is started until it is stopped (or from the departure point to the destination). This is a database accumulated as one entry (unit). For each entry, “date and time”, “time required” from engine start to stop, “departure place”, “destination”, and a series of nodes “ This is information in which items such as “route”, “weather”, “driver”, “passenger”, and reproduced “music” are recorded.

  The destination prediction unit 14 collates the situation (date and time, current location, driver, passenger, etc.) detected by the situation detection unit 12 with the history data 131a stored in the history data storage unit 131, so that the current traveling Predict your destination in. For example, the date and time (time zone, day of the week) in the current situation, the current location, the driver, and the passenger are recorded as “date and time (time zone, day of the week)”, “departure place”, “driver”, and “passenger”. This is a processing unit that extracts all the entries from the history data 131a and predicts the “destination” with the largest number of cases among all the “destinations” recorded in the extracted entry as a predicted destination.

  The correlation extraction unit 15 refers to the history data 131a stored in the history data storage unit 131 based on the current status and the predicted destination notified from the destination prediction unit 14, thereby listening to the current status and the past. The characteristics of the music (artist, genre, melody) and the characteristics of the music with the strongest correlation, that is, the characteristics of the music content that was frequently listened to in the past, which is close to the current situation This is a processing unit for specifying artist, genre, or tune.

  The music selection unit 16 refers to the music data 17b stored in the music content storage unit 17 to identify “song IDs” of all the songs having the characteristics of the music specified by the correlation extraction unit 15, This is a control unit that repeats the reproduction of the music content by sequentially informing the reproduction unit 18 of the “song ID”.

  The music content storage unit 17 is a storage device such as a DVD-RAM that stores music content (a collection of music pieces) 17a and music data 17b indicating a list thereof. As shown in FIG. 5, the music data 17b records attributes such as “song ID”, “artist”, “genre”, and “song tone” that identify all the songs included in the stored music content 17a. Directory data.

  Based on an instruction from the user or an instruction from the music selection unit 16, the playback unit 18 reads out and plays back the music content 17 a stored in the music content storage unit 17 for each song, and outputs it to the speaker 19 as an audio signal. Sending decoder, etc. When receiving an inquiry from the history data storage unit 13, the history data storage unit 13 is notified of the currently played music piece.

The speaker 19 is a speaker that outputs the audio signal from the reproduction unit 18 as sound.
Next, the operation of the in-vehicle content playback apparatus 10 configured as described above will be described.

  FIG. 6 is a flowchart showing an operation procedure for accumulating history data by the in-vehicle content reproduction apparatus 10. First, when detecting that the engine has been started (Yes in step S10), the situation detection unit 12 detects the position of the car and the current date and time (step S11), and the detected position and the node of the map data storage unit 11 The collation with the position of each node registered in the database 11b is repeated to determine whether the car is located at any node (step S12). For example, when the detected position is located within a certain range from the position of the node registered in the node database 11b, the vehicle is determined to be located at that node (Yes in step S12), and then the driver's Detection (step S13), passenger detection (step S14), and weather detection (step S15) are performed, and the detection result is notified to the history data storage unit 13.

  Upon receipt of the notification, the history data storage unit 13 determines whether or not the music content is being played back by the playback unit 18 at that time (step S16). Based on the notification (music ID etc.) for the inquiry, the attribute (artist etc.) of the currently reproduced music is read by referring to the music data 17b of the music content storage unit 17, and the detection notified from the situation detection unit 12 The result is recorded as history data 131a in the history data storage unit 131 (step S17). Such history accumulation processing (steps S11 to S17) is repeated until engine stop is detected by the situation detection unit 12 (step S18).

  Specifically, the history data storage unit 13 sets the date and time and the position (node) of the vehicle first detected after the engine is started by the situation detection unit 12 as “date and time” and “departure place” of the history data 131a, respectively. Recorded vehicle position (node) detected by the situation detection unit 12 at each node until reaching the destination, weather, driver, passenger, and song (song ID) played by the playback unit 18 Are recorded as “route”, “weather”, “driver”, “passenger” and “song” of the history data 131a, respectively, and the vehicle position (node) detected immediately before the engine is stopped by the situation detecting unit 12 ) And the required time calculated from the date and time are recorded as “destination” and “required time” of the history data 131a, respectively.

  In this manner, the driving history of the car and the reproduction history of the music content are stored in association with each other, and history data 131a as shown in FIG. 4 is created.

  FIG. 7 is a flowchart showing an operation procedure of music selection by the in-vehicle content reproduction apparatus 10. First, when detecting that the engine has been started (Yes in Step S20), the situation detection unit 12 detects the situation of the vehicle at that time (Step S21). Specifically, the date / time, current location, driver, passenger, etc. are detected and notified to the destination prediction unit 14.

  The destination prediction unit 14 compares the situation data notified from the situation detection unit 12 (date and time, current location, driver, passengers, etc.) with the history data 131a stored in the history data storage unit 131 to determine the destination. The prediction is made, and the predicted destination is notified to the correlation extracting unit 15 together with the situation data (step S22).

  Subsequently, the correlation extraction unit 15 refers to the history data 131a stored in the history data storage unit 131 on the basis of the situation data and the predicted destination notified from the destination prediction unit 14, so that the current situation and the past Extract the correlation with the characteristics of the song you listened to (artist, genre, melody), and the characteristics of the song with the strongest correlation, that is, the characteristics of the music content that you frequently listened to in the past that is close to the current situation The artist, the genre, and the tone of the music), and notifies the music selection unit 16 (step S23).

  Upon receiving the notification, the music selection unit 16 refers to the music data 17 b stored in the music content storage unit 17, so that “song ID” of all the songs having the characteristics of the song notified from the correlation extraction unit 15. Are specified, and the “music ID” is notified to the playback unit 18 in order, thereby causing the music content to be repeatedly played back (step S24).

  In this way, immediately after the car engine is started, the current situation is detected and the destination is predicted, and the music content has the same tendency as the music that was listened to in the past situation near the current situation and the predicted destination. Is played automatically.

  FIG. 8 is a flowchart showing the detailed processing procedure for extracting the correlation and specifying the strongest correlation by the correlation extracting unit 15.

  First, the correlation extraction unit 15 sets a combination of preset items (shown in FIG. 9) among items constituting the current situation (such as “driver”, “passenger”, “destination”, “day of the week”). No. 1 to “n” (items used for correlation extraction)) (steps S30 to S34), all entries whose contents match are extracted from the history data 131a of the history data storage unit 131 (step S31). ), For each “song” recorded in these entries, the artist, genre, and music tone with the largest number of music selections are identified (step S32), and the music selection ratio of the most frequently identified artist, genre, and music tone (respectively extracted) Select all artists, all genres, and most frequent artists, most frequent genres, most frequent tunes for all entries recorded in all entries. Have been proportion) (step S33).

  Then, from among the preset frequency selection ratios of artists, genres, and tunes calculated for all preset combinations (“items used for correlation extraction” from No. 1 to n shown in FIG. 9), The characteristic of the highest music selection ratio (specific artist, genre, music tone) is determined as the characteristic of the music with the strongest correlation (step S35).

  For example, when the “driver” in the current situation is “dad”, the “passenger” is “none”, the “destination” is “company”, and the “day of the week” is “weekdays”, the correlation extracting unit 15 The characteristics of the music with the strongest correlation are determined as follows.

  First, No. 1 shown in FIG. For the combination of items 1 ("driver" and "destination"), all entries that match the current situation, that is, "driver" is "dad" and "destination" is "company" The entries are read from the history data 131a, and all the “songs” recorded in the entries are tabulated for each artist, genre, and tune, so that the most selected artist, genre, tune, and the selection ratio ( For example, the most frequently selected artist is “F”, the selection ratio is 25%, the most frequently selected genre is “J-POP”, the selection ratio is 42%, and the most frequently selected tune is “ The selection ratio is 34%) for “dynamic feeling”.

  Similarly, No. 1 shown in FIG. For the combination of the two items ("Driver", "Destination" and "Passenger"), the entry that matches the current situation, that is, "Driver" is "Dad" and "Destination" is "Company" ”And“ passenger ”is read out from the history data 131a, and all the“ songs ”recorded in the entries are aggregated, so that the artist selected most frequently, Calculate the genre and tune and the selection ratio of each.

  Hereinafter, in the same manner, No. 1 shown in FIG. 3-No. For each combination of n items, calculate the most selected artist, genre, and tune and the selection ratio of each, and finally specify the highest one among the calculated 3n selection ratios. The music characteristic (for example, genre “J-POP”) corresponding to the music selection ratio is determined as the music characteristic most strongly correlated with the current situation.

  FIG. 10 is a diagram showing an example of a combination of a song automatically selected by the procedure as described above and the current situation. Here, for example, when “dad” goes to “company” on “weekdays” by car, a song of the genre “J-POP” is automatically played, and when “mother” goes to “Super A”, the genre “ Western music is automatically played, and on "Holiday (" Saturday and Sunday ")", "Family (driver is" dad "and passenger is" mother ")" route "C6-C8 (road along the coast)" When traveling on the road, a song with the tone of “So-Pleasant” is automatically played, and when going to a meal (“Destination” is “Restaurant B”), a song of the genre “Ballade” is automatically played and “The eldest son A” is driving In this example, the song “Artist C” is automatically played.

  As described above, according to the in-vehicle content reproduction apparatus according to the present invention, the date and time (time zone, day of the week), departure place, destination, route, weather, driver, ride on the basis of the music selection history in the traveling so far. Music determined from the degree of coincidence in a plurality of items such as a person is automatically selected and played. Therefore, the music closer to the user's taste is selected and played as compared to the conventional technique in which music is fixedly selected only by the time zone or only by the traveling point.

  Further, according to the in-vehicle content playback apparatus according to the present invention, the music to be automatically played is determined based on the music selection history of the music that has been played during the past run. Even when the user's preference changes, automatic music selection is performed based on the changed music selection history, and the convenience of the user is ensured over a long period of time.

  In the present embodiment, one artist / genre / musical tone having the highest music selection ratio is determined by the procedure shown in FIG. 8, but if there are a plurality of music selection ratios having the highest music selection ratio (for example, the genre “ In the case where the music selection ratios of “ballad” and artist “G” in the past are both 32%), the user may be allowed to select, as in the screen display example shown in FIG.

  Also, as shown in the screen display example of FIG. 12, the performance schedule of each song determined by automatic music selection may be displayed on the travel route. For example, when it is determined that the genre “jazz” is automatically played, the in-vehicle content playback apparatus refers to the music data 17b to determine a plurality of songs belonging to “jazz”, their performance order and performance time. By obtaining the predicted travel route and the required time on the route from a car navigation device or the like, the titles of the songs scheduled to be played are displayed in an overlapping manner on the travel route. Thereby, the user can know at a glance what kind of music is automatically played at what timing. The in-vehicle content reproduction apparatus may be provided with an editing function that allows the user to change to another song in units of songs for such a performance schedule display.

  Further, in the present embodiment, as shown in the flowchart of FIG. 7, the automatic performance mode by the in-vehicle content playback apparatus 10 is started by starting the engine, but the present invention is not limited to such a trigger. An explicit instruction by the user, for example, pressing of the button “music automatic performance mode” displayed on the screen, an operation of the car audio device, a music selection operation by the user, or the like may be used. That is, the in-vehicle content playback apparatus 10 is at least one of when the car engine is started, when the user issues an instruction to listen to music, and when the user issues an “automatic music selection” instruction. Therefore, the automatic performance mode may be started.

  In addition, when the genre, artist, and tune to be played automatically are determined, the criteria for which song to play are determined as "play a song that has not been played recently" or "song that has been played less frequently". A standard of “playing” may be set. This is realized by storing information on the date and time of performance of each song and the frequency of the performance every time the song is played. By referring to these pieces of information, it is possible to perform from an old song that has been played or from a song that has been performed less frequently. Furthermore, these criteria and criteria based on the music selection ratio may be combined as follows. That is, when genre A and genre B are selected according to the music selection ratio, if the performance frequency of the music belonging to genre A is higher than that of the music belonging to genre B, the music belonging to genre B is played preferentially. Also good.

  Further, the history data as shown in FIG. 4 may record not only the history of the played music but also the operation performed on the music and its frequency. The operations here are operations such as “fast forward” and “repeat performance”. If these histories are used for song selection, songs that have been operated to repeatedly listen to a song such as “repeat performance” in the determined genre, artist, and tone are preferred because the song is preferred by the user. Thus, it is possible to determine that the user does not like the music that is frequently played and the operation for skipping the music such as the “fast forward” operation, so that the priority of the performance can be lowered.

  In the present embodiment, as shown in the flowchart of FIG. 6, the history data 131a is created by extracting nodes. However, the creation method of the history data 131a is not limited to this method. A method may be used in which a starting point, a viaway (name, type), and a destination set are stored as a unit.

  Further, the map data 11a and the node database 11b stored in the map data storage unit 11 or the music content 17a and the music data 17b stored in the music content storage unit 17 are only stored in a fixed form in advance. It is not limited, and it may be downloaded and updated from a site on the Internet accessed by wireless communication or the like.

  In this embodiment, as shown in step S22 of FIG. 7, the “destination” is predicted, and the music is automatically selected based on the predicted “destination”. Needless to say, even if the “destination” is explicitly set, the “destination” can be used as a parameter for automatic music selection.

  As described above, the content reproduction device according to the present embodiment is a content reproduction device that reproduces content including music, and accumulates history data including information about the driving history of the car and the music that was listened to during the driving. History data storage means, and music specifying means for specifying the type of music having a strong correlation with the current driving situation by referring to the history data stored in the history data storage means when the vehicle is running And a reproducing means for reproducing a music piece belonging to the specified type. As a result, automatic music selection is performed based on the driving history, so music that more closely matches the user's driving situation than the conventional music selection method in which music that is fixedly associated with the time zone and driving point is selected. Can be automatically selected.

  Here, the travel history and the travel situation include at least one item of time, day of the week, departure place, destination, required time from the departure place to the destination, travel route, weather, driver and passengers. The types of music include artist, genre and music tone. This means that even if you are driving the same point by car, for example, whether you are driving for work on weekdays, driving to go on a holiday, whether there are passengers, Depending on who the person is and the atmosphere (path) of the scenery, the music of the artist, genre or tone corresponding to the past music selection is automatically played.

  The reproduction means includes a music content storage unit that stores a plurality of music pieces and music data indicating the types of the music pieces, and is specified by the music specifying means by referring to the music data. A music piece belonging to the selected type may be selected, and the selected music piece may be read in order from the music content and played back. At this time, the reproduction means may display the music to be reproduced and the reproduction timing in association with the travel route on the map. Thereby, the music of the same type as the music that the user has listened to in the past is automatically played in order, and the performance schedule can be known at a glance.

  In addition, the music specifying means extracts only history data that matches a preselected item from the plurality of items constituting the running history and the running situation from the history data storage means, and extracts the extracted history data. You may identify the kind of music selected most frequently in the past driving | running based on the information which shows the said music contained. Specifically, the music specifying means targets the history data extracted from the history data storage means, and the artist, genre and tone of the most frequently selected song, and all artists of the artist, genre and tone, The selection ratios for all genres and all tunes may be calculated, and the artist, genre or tune having the highest calculated selection ratio may be specified as the type of music having a strong correlation with the current running situation. As a result, the items used to calculate the correlation between the current situation and the music can be specified in advance, so that the music selection criterion is selected so that the music preferred by the user is appropriately selected from the result of automatic music selection. Can be tuned.

  In addition, when there are a plurality of types of music that are most frequently selected in the past run, the music specifying unit may display that fact on the screen and specify one type according to the selection instruction from the user. The music specifying means is caused by at least one of when a car engine is started, when a user issues an instruction to listen to music, and when a user issues an “automatic music selection” instruction. As above, the type may be specified. As a result, when there are a plurality of recommended genres and the like, the user can select a favorite one or designate the start timing of automatic music selection.

  The content reproduction apparatus further includes destination prediction means for predicting a destination based on the travel history and the current travel situation, and the music specifying means includes the destination predicted by the destination prediction means. The content reproduction apparatus further includes a travel route detecting means for identifying a type of music having a strong correlation with the current situation, and detecting the travel route of the car as a series of nodes corresponding to preset main points. The music specifying means may specify the type of music having a strong correlation with the current situation including the travel route detected by the situation detecting means.

(Embodiment 2)
Next, a second embodiment of the present invention will be described.

  In recent years, video can be viewed not only on home televisions but also on in-vehicle devices, and video content can be viewed on mobile phones and the like. In addition, music content can be played on mobile audio devices and in-vehicle devices, as well as on home audio devices. Music and video content can be played in various scenes. It has become possible to watch. Furthermore, as the capacity of storage media for storing contents increases, a large amount of contents can be stored in each viewing terminal. For this reason, users who view content cannot grasp which content is stored in which viewing terminal. For example, music content stored in home audio devices can be transferred to semiconductor memory and viewed on in-vehicle devices and mobile terminals. However, as the number of music increases, it is stored in home audio devices. It has become impossible to grasp which music has been transferred to the semiconductor memory without checking the contents in the memory.

  Therefore, in the present embodiment, in the memory or playback device in which content such as music is stored, the viewing history at each terminal of the user is stored, and when the content is transferred and copied, the viewing history at each terminal This is realized by a simple user operation. Conventionally, there has been proposed an apparatus that extracts the terminal owner's preference from the statistical information of the playback history of the content of a specific terminal, and recommends the content that meets the preference. The content reproduction history of the terminal is used to support the movement of the content, which is a fundamentally different invention from the device that recommends the content.

  Embodiment 2 of the present invention will be described below with reference to the drawings. In the present embodiment, content stored in each device is transferred to each other using content playback histories in a plurality of content playback devices, and the content played back on the playback device is updated.

  FIG. 13 is a diagram showing the overall configuration of the present embodiment. In the figure, a home content playback device 1301 is a device that is mainly used at home and has a large capacity HDD or the like to store and play back a large number of music content. A semiconductor memory card 1304 is an SD memory card or the like. The portable content playback device 1302 is a device that plays music content stored mainly in a semiconductor memory card 1304 and used mainly by a user. The management device 1303 is a device typified by a personal computer, and has a function of transferring or deleting music content stored in the home content playback device 1301 and music content stored in the semiconductor memory card 1304 to each other. It is. The content management device 1303 and the home content reproduction device 1301 are connected to a network, and the content management device 1303 can refer to the semiconductor memory card 1304.

  FIG. 14 shows a configuration common to the home content playback device 1301 and the portable content playback device 1302. These devices include a music content storage unit 17, a history data storage unit 13, a situation detection unit 12, a user input unit 1401, a playback unit 18, and a speaker 19. In addition, the same code | symbol is attached | subjected about the component same as Embodiment 1, and detailed description is abbreviate | omitted. Further, in the home content playback device 1301, it is assumed that the music content storage unit 17 and the history data storage unit 13 are provided in a recording medium such as a built-in hard disk drive, but the portable content playback device 1302 is removable. A possible semiconductor memory card 1304 may be provided.

  Since the situation detection unit 12 is provided in the in-vehicle device in the first embodiment, the situation detection unit 12 includes various sensors such as determining a driver and a passenger. However, in the present embodiment, the situation detection unit 12 includes at least information on date and time. It is characterized by detecting.

  The history data storage unit 13 operates in the same manner as in the first embodiment. However, since the information detected by the situation detection unit 12 is at least information related to the date and time, the stored information is different. FIG. 15 shows an example of data stored as history data 131a in the present embodiment. The history data 1501 shown in FIG. 15A is an example of history data stored by the portable content playback device 1302, and the history data 1502 shown in FIG. It is an example of the log | history data accumulate | stored. As described above, the history data is stored for each device that reproduces content.

  The user input unit 1401 is an interface for designating content that the user wants to reproduce. The reproduction unit 18 reproduces the content designated by the user input unit 1401 and outputs it from the speaker 19. As shown in the first embodiment, a correlation extraction unit 15 and a music selection unit 16 are provided for automatically determining content to be reproduced based on history information stored in the history data storage unit 13. Also good.

  FIG. 16 is a functional block diagram illustrating a configuration of the content management apparatus 1303. The content management apparatus 1303 includes a display unit 1606, a user input unit 1605, a transfer reference storage unit 1607, a transfer music determination unit 1608, a first history reference unit 1609, a second history reference unit 1610, a music deletion unit 1611, and a music transfer unit. 1612. The content management device 1303 includes a first music content storage unit 1602 and a first history storage unit 1601 stored in the semiconductor memory card 1304 and a second music content storage unit 1604 stored in the home content playback device 1301. The content is managed with reference to the second history storage unit 1603. As described above, the first music content storage unit 1602 stores the content that is played back by the portable content playback device 1302, and the first history storage unit 1601 stores the history information that is played back by the portable content playback device 1302, respectively. Yes.

  The first history reference unit 1609 and the second history reference unit 1610 are a first history storage unit 1601 and a second history storage, which are history information of content played back by the portable content playback device 1302 and the home content playback device 1301, respectively. Reference is made to part 1603.

  The transfer reference storage unit 1607 stores information on determination criteria for transferring the content stored in the second music content storage unit 1604 to the first music content storage unit 1602, and the information on these criteria is displayed. Part 1606 indicates to the user.

  FIG. 17 is a diagram showing an example of transfer criteria indicated to the user by the display unit 1606 of the content management apparatus 1303 shown in FIG. The transfer criteria are presented to the user as easy-to-interpret expressions such as “home preference” 1701, “enriched preference” 1702, “copy nostalgic song” 1703, “refresh preference” 1704. Is done. Specifically, the transfer criteria exemplified here have the following implications. The “Like at home” 1701 deletes music with a small number of playbacks in the portable content playback device 1302 and transfers music with a high playback count in the home content playback device 1301 to the portable content playback device 1302. The “enrichment of preference” 1702 erases music with a small number of playbacks in the portable content playback device 1302, and among the content stored in the home content playback device 1301, the number of playbacks in the portable content playback device 1302. Transfer the music of many artists. “Copy nostalgic song” 1703 deletes music with a small number of playbacks in portable content playback device 1302 and transfers music with a high number of playbacks in the past to portable content playback device 1302 in portable content playback device 1302. To do. “Refresh preferences” 1704 deletes music with a large number of playbacks in the portable content playback apparatus 1302 and transfers music with a large number of playbacks in the home content playback apparatus 1301 to the portable content playback apparatus 1302.

  Note that the transfer criteria are not limited to these, and there are various other possibilities. For example, referring to the music data 17b, the second music content storage unit 1604 may select one that has the same genre and tune of content that is frequently played back by the portable content playback device 1302. This makes it possible to collect contents of favorites (those that have been reproduced a predetermined number of times) with similar characteristics. When introducing these contents to others, it is possible to deliver information in consideration of copyright by providing only bibliographic information (artist, title) in the attribute information.

  In addition, the date and time information when the content is reproduced is extracted from the information stored in the history data 131a, and the second music content storage unit has the same reproduction date and time as the content that is frequently reproduced in the portable content reproduction device 1302. You may select from 1604. As a result, it is possible to easily select content reproduced on a specific date and time (birthday). Also, content that is often played back can be taken out at a specific time (such as in the morning).

  Furthermore, if there is a function for automatically extracting music feature parameters such as rhythm and tempo, not only the music data 17b given in advance but also the similarity of the feature parameters extracted in this way is taken into consideration. Also good.

  Note that the content management apparatus 1303 may have all the music data 17b stored in the first music content storage unit 1602 and the second music content storage unit 1604 in the apparatus, or may be acquired via a network. Needless to say, it is good.

  The user input unit 1605 accepts the user's selection from among the transfer criteria presented to the user as in the display screen example shown in FIG.

  The transfer music determination unit 1608 performs content playback history in the home content playback device 1301 and the portable content playback device 1302 referenced by the first history reference unit 1609 and the second history reference unit 1610 according to the transfer criteria selected by the user. Based on the information, the content to be deleted among the content stored in the first music content storage unit 1602 and the content stored in the second music content storage unit 1604 are transferred to the first music content storage unit 1602. The content to be determined is determined.

  As an example, a case where “Home preference” 1701 is selected in FIG. 17 will be described. In accordance with this transfer standard, first, content with a small number of playbacks in the portable content playback device 1302 is erased. For this purpose, the history information of the portable content playback device 1302 shown in the history data 1501 of FIG. 15A stored in the first history storage unit 1601 is scanned to sort the contents in the order of the number of playbacks, and the number of playbacks is small. A predetermined number (for example, 30 songs) is extracted from the content and set as a candidate for erased content. Next, the content having a large number of playback times in the home content playback device 1301 is transferred to the portable content playback device 1302. For this purpose, the history information of the portable content playback device 1302 shown in the history data 1502 of FIG. 15B stored in the second history storage unit 1603 is scanned and the contents are sorted in the order of the number of times of playback. A predetermined number (for example, 30 songs) is extracted from the content and set as a candidate for the erased content.

  In addition to this, various methods for extracting candidates for transferred content and erased content can be considered. For example, instead of erasing / transferring a predetermined upper number of contents, a process of setting a threshold for the number of times of reproduction, uniformly erasing contents of which the number of times of reproduction is 2 times or less, and uniformly transferring contents of the number of times of reproduction of 10 times or more May be performed. Further, after erasing the content, the number of contents to be transferred may be selected according to the free area existing in the first music content storage unit 1602, or conversely, depending on the area necessary for storing the transfer candidate contents. The number of contents to be deleted may be selected.

  The music erasure unit 1611 erases the content determined to be erased by the transfer music determination unit 1608 from the first music content storage unit 1602, and the music transfer unit 1612 is determined to be transferred by the transfer music determination unit 1608. The transferred content is transferred from the second music content storage unit 1604 to the first music content storage unit 1602.

  Next, the processing flow of the transfer music determination unit 1608, the music erasure unit 1611, and the music transfer unit 1612 will be described with reference to the flowcharts of FIGS.

  As shown in the flowchart of FIG. 18, first, the transfer music determination unit 1608 specifies the transfer criterion selected by the user based on the user input received from the user input unit 1605 (S40), and the first music content Content candidates to be deleted are extracted from the storage unit 1602 (S41).

  The music erasure unit 1611 erases the content that is the erasure candidate by the transfer music determination unit 1608 from the first music content storage unit 1602 (S42).

  The transfer music determination unit 1608 further extracts content candidates to be transferred from the second music content storage unit 1604 to the first music content storage unit 1602 based on the transfer criteria (S43).

  The music transfer unit 1612 transfers the content that is the transfer candidate by the transfer music determination unit 1608 from the second music content storage unit 1604 to the first music content storage unit 1602.

  Next, details of the erasure music candidate extraction process (S41) in the flowchart of FIG. 18 will be described using the flowchart of FIG.

  The transfer music determination unit 1608 selects one piece of music from the playback history of the portable content playback device 1302 referred to by the first history reference unit 1609 (S50), and sets the erasure criterion in the transfer criterion selected by the user. It is determined whether or not it is satisfied (S51). If satisfied (Yes in S51), the music is added as a deletion candidate (S52), and it is confirmed whether there is any music that has not yet been determined to be deleted (S53). On the other hand, if not satisfied (No in S51), it is confirmed whether there is music that has not yet been determined to be erased (S53).

  If there is music that has not been erased (Yes in S53), one piece of music is selected again, and the same processing is repeated. If the erasure determination has been completed for all music (No in S53), the process is terminated.

  Next, details of the transfer music candidate extraction process (S43) in the flowchart of FIG. 18 will be described using the flowchart of FIG.

  The transfer music determination unit 1608 selects one piece of music from the playback history of the home content playback device 1301 referred to by the second history reference unit 1610 (S60), and whether or not the transfer criterion selected by the user is satisfied. A determination is made (S61). If it is satisfied (Yes in S61), the music is added as a transfer candidate (S62), and it is confirmed whether there is any music that has not yet been determined to be transferred (S63). On the other hand, if not satisfied (No in S61), it is confirmed whether there is music that has not yet been determined to be transferred (S63).

  If there is music that has not been determined to be transferred (Yes in S63), one music is selected again, and the same processing is repeated. If the transfer determination has been completed for all the music (No in S63), the process ends.

  Note that although an independent device such as a personal computer is assumed as the content management device 1303 in this embodiment, the home content reproduction device 1301 may have the function of the content management device 1303. In addition, although the home content playback device 1301 is configured to have music content, it may be included in the content management device 1303 or in a separate server on the network. The home content reproduction device 1301 may be capable of reproducing music content via a network. Further, the history information in the portable content playback device 1302 and the information related to the stored music content can be referred to via the semiconductor memory card 1304. However, the portable content playback device 1302 can be connected to the network. Needless to say, it may be directly accessible.

  Further, in the present embodiment, a description has been given of a mode in which music content is transferred to the home content playback device 1301 and the portable content playback device 1302, but the target device is not limited to this, and other devices are also available. The present invention can be applied to any device capable of reproducing content such as an in-vehicle audio device. Also, the transfer direction of the music content is not limited to one direction, and it may be transferred from any device to any device, or may be transferred between a plurality of three or more devices. In any case, it is only necessary that the music content stored based on the content reproduction history in each device is transferred between the devices capable of reproducing the music content. Further, the content to be transferred may be deleted from the transfer source device (the content is moved) or may be copied and stored in the transfer source device.

  When an in-vehicle audio device is assumed as the portable content playback device 1302, information such as weather can be used by using a sensor that detects an operation state such as a wiper as the state detection unit 12. In addition, the home content playback device 1301 acquires information such as weather from the network and accumulates it as a playback history, so that music that was viewed in the home when it was raining was automatically transferred to be viewed on the in-vehicle device. You can also consider how to use it.

  In the present embodiment, content transfer between a plurality of content reproduction apparatuses owned by one user has been described. However, transfer may be performed between terminals having different owners. In the case of recommending content that a user has recently played but is not played by a friend very much, by searching for content that has been played frequently by the user and that has not been played by a friend based on the playback history realizable. As a result, it becomes possible to exchange contents based on actual experience using the mutual reproduction histories for friends.

  In the present embodiment, music is assumed as the target content. However, any other content that has attribute information as shown in FIG. 5 and can store the reproduction date / time can be used. If there is, it is possible to use information on performers, information on genres such as variety and drama, commentary information on video content, etc. as attribute information.

  As described above, according to the present embodiment, when a capacity for storing content to be played back by portable content playback device 1302 is not sufficient, and a work to replace stored content is required, a plurality of terminals can be used. By using this reproduction history information, the replacement is automatically performed with a small burden on the user.

Next, an application example in the present embodiment will be described.
In the case of moving image content that is frequently updated (for example, a TV program broadcast every day from Monday to Friday), application examples of the following usage forms can be considered with reference to history information regarding specific content. The user designates a TV program called specific content “World Business News” in advance, and the program is recorded by the home content playback device 1301. FIG. 21 shows a list of programs recorded in the home content reproduction device 1301. In the present embodiment, it is stored in the second music content storage unit 1604.

  FIG. 22 and FIG. 23 show history information related to “world business news” stored in the second history storage unit 1603 and the first history storage unit 1601, respectively. The content management apparatus 1303 refers to the second music content storage unit 1604 (FIG. 21), the second history storage unit 1603 (FIG. 22), and the first history storage unit 1601 (FIG. 23). In the program recorded in 1604, it is determined that the broadcast on December 12 is not being viewed on any device, and the broadcast is determined to be transferred to the first music content storage unit 1602.

The following can be considered as specific usage forms.
Users go home every night and watch “World Business News” at home. I couldn't watch the broadcast of the day because of the late return home. Even in such a case, when the user synchronizes the portable content playback device 1302 and the home content playback device 1301 the next morning, a program that has not been viewed yet is automatically transferred to the portable content playback device 1302 from each viewing history. It can be viewed on the next day, etc. In particular, it is possible to prevent the user from forgetting to transfer the content by performing it in conjunction with a daily operation such as connecting the portable content playback device 1302 to a charging device in the home. Further, the effect is further increased by executing the above-described contents without performing an action for intentional transfer by the user in cooperation with a wireless network environment or the like.

  As described above, according to the present embodiment, the content transfer for transferring the content stored in the first storage unit included in the first playback device that plays back video or music content to the second storage unit included in the second playback device. A playback history storage unit that stores a playback history of content by at least one of the first and second playback devices, and the first storage unit based on the playback history stored in the playback history storage unit And transfer means for transferring the content stored in the second storage means. As a result, the content is transferred from the first storage means to the second storage means based on the reproduction history, so that it is not necessary to select and copy the content that the user likes from a huge number of contents one by one. .

  The content transfer apparatus further includes erasure means for erasing content stored in at least one of the first and second storage means based on the reproduction history. As a result, for example, content that is not often viewed can be deleted from the storage means, and a space for storing new content can be secured.

  Further, the playback history includes a playback history of content by the first playback device, and the transfer means refers to the playback history to play back the content stored in the first storage means. The content having a large or small number of times is specified, and the specified content is transferred from the first storage means to the second storage means. Similarly, the playback history includes a playback history of the content by the first playback device, and the erasing unit refers to the playback history, and among the content stored in the first storage unit, Content with a large or small number of reproductions is specified, and the specified content is deleted from the first storage means. Accordingly, for example, content that was often viewed on a home content playback device or that is not often viewed can be automatically transferred to a portable content playback device for viewing outdoors.

  Further, the playback history includes a playback history of content by the second playback device, and the transfer means refers to the playback history to play back the content stored in the second storage means. A content having a large number or a small number of times is specified, and content similar to the specified content is transferred from the first storage means to the second storage means. Similarly, the playback history includes a playback history of content by the second playback device, and the erasure unit refers to the playback history, and among the content stored in the second storage unit, Content with a large or small number of reproductions is specified, and the specified content is deleted from the second storage means. As a result, for example, content that is often viewed or not frequently viewed among content stored in the portable content playback device is deleted, or similar content is automatically received from the home content playback device. The content to be transferred and stored in the portable content playback device can be enriched or refreshed.

  The reproduction history includes information indicating the date and time when the content was reproduced, and the transfer unit stores the content to be transferred in the first storage unit on the condition of the date and time included in the reproduction history. Then, the contents are identified from the contents, and the identified contents are transferred from the first storage means to the second storage means. This makes it possible to select only the content that was played back at a specific date and time, or to copy only the content that was often played back at a specific time, and select the desired content from a huge number of content. It can be easily taken out.

(Embodiment 3)
Next, a third embodiment of the present invention will be described.

  In order to automatically select music according to the situation, a lot of sensor information for recognizing the user's situation is required. However, it is often expensive to install many sensors. Furthermore, it is convenient to automatically search from content data held by the user due to incidents, accidents, events, etc. that occur on a daily basis.

  Therefore, in this embodiment, paying attention to the fact that the content broadcast publicly changes due to daily incidents, accidents, events, etc., and automatically selects the content owned by itself according to the change A device is provided. For example, when a concert tour of a singer is started, a lot of songs of the singer are played in each broadcast program. Therefore, an apparatus is provided that automatically selects music according to the date and time by receiving and analyzing the information. In addition, a broadcaster that distributes music content has a lot of know-how for distributing music. In view of this, an apparatus is provided that automatically selects and reproduces the music that the broadcaster uses by using the know-how that the broadcaster selects the music.

  Also, in receiving broadcasts, reception conditions vary depending on the region. Therefore, when the reception situation is bad, it is possible to enjoy the broadcast content comfortably by substituting the content owned by itself.

  In addition, in response to the problem of how to play a large amount of music content stored in a large-capacity storage medium such as an HDD or a semiconductor memory as described in the first embodiment, a radio or the like The playback order can be determined by referring to the music broadcast on the Internet.

  The third embodiment of the present invention will be described below with reference to the drawings. In the present embodiment, the reproduction of the content stored in the content reproduction apparatus is determined with reference to information related to music broadcast by a broadcasting station such as a radio.

  FIG. 24 is a functional block diagram showing the configuration of content reproduction apparatus 2410 in the present embodiment. The content reproduction device 2410 includes a receiving unit 2401 that receives a broadcast, an analysis unit 2402 that analyzes the received broadcast, a music content storage unit 17 that stores music content, and a selection criterion storage unit 2405 that stores a criterion for reproducing the content. , A display unit 2404 that presents selection criteria to the user, a user designation unit 2403 that accepts user input regarding selection, a music selection unit 16 that selects content to be played back, a playback unit 18 that plays back content, and a speaker 19. .

  FIG. 25 is a diagram schematically showing a radio broadcast received by the receiving unit 2401 shown in FIG. In radio broadcasting, DJ talk and music playback are repeated alternately like a stream 2501 in a program. In this, it is assumed that each piece of music can use attribute information such as music attribute information 2502 multiplexed or attached as tag information. Part 2402 extracts. As shown in the figure, the attribute information 2502 is composed of a music title, a singer name, a genre, a sensitivity word representing a musical tone, and the like. In addition to being multiplexed with each music itself, the attribute information may be multiplexed with a DJ talk immediately before the music starts, or program information representing a DJ talk or each music timetable is broadcast. It may be possible to know in advance what kind of music will be broadcast at what time and what time before the actual music broadcast. Further, instead of the attribute information multiplexed on music, music characteristic parameters such as music tempo and beat as shown in the second embodiment may be extracted by the analysis unit 2402, or both pieces of information may be obtained. It may be used.

  The selection criterion storage unit 2405 stores selection criteria for reproducing the content stored in the music content storage unit 17 in accordance with the broadcast content received by the reception unit 2401. The specific contents of the selection criteria will be described using the display screen example of FIG. 26, that is, the screen presented to the user by the display unit 2404.

  A display screen 2601 shown in FIG. 26 (a) is a screen (selection item group) that represents a standard regarding the listening style of the music to be broadcasted, the music stored in the music content storage unit 17, and which is important. ). “Received music priority” 2602 is related to the received music in a situation where the music received by the receiving unit 2401 is preferentially played and the received music is poor and the received music cannot be clearly played back. The standard is that content is selected from the music content storage unit 17 and reproduced. In other words, using the schematic diagram of the radio broadcast shown in FIG. 25, when the reception state of the radio wave of “DJ Talk 2” is poor, or when the reception state of the radio wave deteriorates in the middle of “Song 3”, , Content related to “Song 3” is reproduced instead of “Song 3”. On the other hand, “preserved music priority” 2603 reproduces the broadcast received by the receiving unit 2401 and, when the music is a part to be reproduced, selects content related to the received music from the music content storage unit 17. It is a standard of reproduction. In other words, using the schematic diagram of radio broadcasting shown in FIG. 25, “Song 1”, “Song 2”, “Song 3”, and “Song 4” are related to each music in accordance with the timing of broadcasting. A certain content is reproduced.

  A display screen 2606 shown in FIG. 26 (b) is a screen (selection screen) showing a standard regarding music selection criteria for selecting and playing back related music from the music content storage unit 17 instead of the broadcasted music. Item group). “Artist priority” 2607 is a standard for reproducing music of the same artist as the song being broadcast in the content of the music content storage unit 17, and “Song priority” 2608 is similar to the song being broadcast. The standard is to play music having a sensitivity word and a characteristic parameter, and “genre priority” 2609 is a standard to give priority to music of the same genre as the song being broadcast. As described above, information on the artist name, tune, and genre is extracted by the analysis unit 2402.

  Next, selection criteria in the present embodiment will be described with reference to the flowchart shown in FIG.

  If it is determined by the receiving unit 2401 that the performance of the song of the radio broadcast has been started (Yes in step S70), the user designating unit 2403 determines the listening style designated by the user or designated in advance. (Step S71).

  If it is determined that the listening style is the received music priority (step S72), the receiving section 2401 measures the receiving sensitivity (step S72), and if it is determined that the sensitivity is good (Yes in step S73). The music selection unit 16 selects to play the broadcast music, and is played by the playback unit 18 (step S74).

  When the listening style has priority to the received music and the reception sensitivity is poor (No in step S73), or when the listening style is determined to have priority on the stored music (step S71), the user designation unit 2403 designates the user. Alternatively, a music selection criterion designated in advance is determined (step S75). Then, the music selection unit 16 selects a song that matches the criteria specified by the user from the music content storage unit 17 (step S76), and the reproduction unit 18 reproduces the music (step S77).

Next, an application example in the present embodiment will be described.
In this embodiment, an example in which similar music is played instead of a song received by radio broadcasting has been described. However, by applying this, music based on a radio program table received by a user and a history of radio broadcasting can be applied. The music in the music content storage unit 17 can be reproduced by the selection unit 16.

  FIG. 28 shows a configuration of a content reproduction device 2410a in the application example. What is different from the configuration of the content reproduction apparatus 2410 shown in FIG. 24 is that a reception history storage unit 2801 is provided. The reception history storage unit 2801 is a radio program table received by the reception unit 2401, a radio broadcast program received by the reception unit 2401, attribute information of the radio broadcast program itself, and an attribute analyzed by the analysis unit 2402 regarding the song to be broadcast. Information history information is accumulated.

  29 is received by the receiving unit 2401 of the content reproduction device 2410a shown in FIG. 28, and the broadcast program that the user has actually listened to, the name of the DJ, attribute information of the program (such as a sensitivity word such as “exhilarating” The example which memorize | stores the historical information regarding the characteristic of the music broadcast on programs, such as "hit chart" is shown. When such information is presented to the user in the time table format by the display unit 2404 and the user can be designated by the user designation unit 2403, the attribute information (for example, “exhilarating”) of the program selected by the user is displayed. The matched music can be selected by the music selection unit 16. When presented in the time table format in this way, the visibility is improved for the user.

  Note that what is presented to the user is not limited to the information about the program that the user actually listens to, but may be a broadcast schedule for one day or one week for each broadcast station or a track record. In any case, it is only necessary that the user designates based on attribute information such as a program name and a sensitivity word and the music selection unit 16 performs selection based on the designation.

  Also, if the timetable of each broadcast station is accompanied by information related to the music to be played in the program, the timetable of a plurality of broadcast stations can be acquired, such as the past three days based on one day, one week, or a certain day. Information regarding the frequency of music applied over an appropriate period can be grasped, and the music selection unit 16 may automatically select music based on the frequency.

  In addition, according to the situation such as the season, time zone, day of the week, etc., a song closely related to information on a program often listened to by the user may be automatically reproduced. According to this, for example, in the example of FIG. 29, the user often listens to the program expressed by the sensitivity word “exhilarating” in the morning on weekdays. Matching songs can be played automatically.

(Embodiment 4)
Next, a fourth embodiment of the present invention will be described.

  In the third embodiment, when music content is played back using public radio broadcasting or the like, the content is always displayed with clear sound quality by selecting whether the music content is already stored or broadcast content. Although this embodiment relates to a content playback device that can be played back, this embodiment can easily reproduce the content that has already been stored and information that can be acquired on a network, radio, etc. with a certain theme. The present invention relates to an apparatus capable of reproducing content.

  In an in-vehicle terminal, it is necessary not only to reproduce already stored music but also to acquire new information via a network or broadcast. In particular, even when music is being played, traffic information is also necessary to drive the vehicle safely, and there is a possibility that information of preference of the user is broadcast on the radio or the like. In such a case, conventionally, in order to enjoy content supplied from a plurality of media, it is necessary to operate an in-vehicle audio device every time the source source is changed.

  Therefore, in the present embodiment, reproduction is automatically performed by using a reproduction content list in which information related to content to be reproduced as a music reproduction list and information to which information necessary for the user is distributed are used. A music content reproduction system capable of generating a pattern and automatically reproducing music without any operation by the user will be described.

  FIG. 30 is a functional block diagram showing the configuration of the music content reproduction system according to the fourth embodiment. This music content reproduction system includes a server 3100a and an in-vehicle terminal 3100b connected via a public network. The server 3100a is an information server that provides various types of information to the in-vehicle terminal 3100b, and includes an inter-music information storage unit 3104. The in-vehicle terminal 3100b is a music content playback device such as an in-vehicle audio device, and includes a music content storage unit 3101, a music content tag storage unit 3102, a playlist storage unit 3103, an inter-music information acquisition unit 3105, and a playback content order determination unit 3106. , A reproduction content selection unit 3107, a content reproduction unit 3108, and a reproduction list designation unit 3109.

  The music content storage unit 3101 is a storage device in which music content is stored. The music content storage unit 3101 includes, for example, a hard disk or a semiconductor memory, and stores a large amount of music content in the WAV format, MP3 format, or the like. The music content tag storage unit 3102 is a storage unit in which information for searching for music content such as the title, artist, tune, and release date of the music content stored in the music content storage unit 3101 is stored.

  The reproduction list storage unit 3103 is a storage unit that stores a reproduction list that is a list of music contents to be reproduced. The playlist includes information related to tags of music content to be played back, information between music (information to be played back during the playback of music content) and the like for the user to enjoy content playback using program information such as broadcasting. For example, as shown in FIG. 31, with respect to a certain theme (in this case, an anime special feature), information for specifying music and content acquired between the music for the specified theme via broadcasting or a network Information about is described. In addition to these, music information is described for themes such as “90's hit song collection”, “movie music special feature”, “drama theme song special feature”, and “healing special feature”. Note that the reproduction list is acquired via a network or the like, and the music described in the reproduction list does not necessarily match the stored music. The stored music is often part of what is listed in the playlist.

  The play list designation unit 3109 is a user interface that designates and selects one play list from the play lists stored in the play list accumulation unit 3103 in accordance with a user instruction. The playlist selected by the playlist designation unit 3109 is read and referred to by the inter-music information acquisition unit 3105 and the playback content order determination unit 3106.

  The inter-music information storage unit 3104 is a storage device provided in the server 3100a, and is a hard disk or the like in which inter-music information, that is, information to be reproduced while reproducing music content is accumulated. The inter-music information is, for example, information related to music other than music, such as audio information for explanation about each music, traffic information, information on weather forecast, and the like.

  The inter-music information acquisition unit 3105 is an inter-music information acquisition unit that acquires the inter-music information stored in the inter-music information storage unit 3104. In the inter-music information acquisition unit 3105, when there is information to be acquired via a network or the like based on the playlist selected by the playlist specification unit 3109 among the playlists stored in the playlist storage unit 3103 In addition, the information is acquired at the timing when the information is distributed or updated. In addition, contents distributed by broadcasting or the like can be stored in the inter-music information acquisition unit 3105 and played back at a predetermined timing.

  The playback content order determination unit 3106 is a processing unit that determines the order of the content to be played back for the playlist selected by the playlist specification unit 3109 from the playlists stored in the playlist storage unit 3103. The playback content order determination unit 3106 does not always store all the music specified in the playlist selected by the playlist specification unit 3109 in the music content storage unit 3101. The playback order of the music content already stored in the music content storage unit 3101 is determined.

  The playback content selection unit 3107 is a processing unit that selects content to be played back using the order determined by the playback content order determination unit 3106 and the inter-music information acquired by the inter-music information acquisition unit 3105.

  The content playback unit 3108 is a playback device that plays back the content selected by the playback content selection unit 3107.

  The operation of the music content playback system configured as described above will be described with reference to the flowchart of FIG.

  First, the user selects a playlist desired by the user from the playlists stored in the playlist storage unit 3103 (S3301). That is, the playlist specifying unit 3109 reads the playlist selected by the user from the playlist storage unit 3103 in accordance with an instruction from the user. For example, it is assumed that the play list designating unit 3109 presents the accumulated play list to the user as shown in FIG. 33A and the user selects “animation special feature”. Further, as shown in FIG. 33 (b), after the user selects a play list, the user designates a time for reproducing the content using the selected play list. Note that the end time is not necessarily set by the user.

  Next, the playback content order determination unit 3106 searches for music stored in the music content storage unit 3101 using the currently selected playback list (S3302). Specifically, as shown in FIG. 31, since the title of a plurality of music is described in the selected reproduction list as a reproduction music list, the reproduction content order determination unit 3106 includes a music content tag storage unit. Using the tags stored in 3102, the music content stored in the music content storage unit 3101 is searched. As a result, for example, the search result shown in FIG. 34 is obtained. In the search result shown in FIG. 34, it can be seen that the music content “signal” 3501 is described in the reproduction list, but is not stored in the music content storage unit 3101. Note that information related to performance time, break performance time at which the first chorus ends, and explanatory information related to music may also be described in the reproduction list. Further, when the music content tag storage unit 3102 copies the music content, it may be copied at the same time as the music content tag.

  Subsequently, the playback content order determination unit 3106 determines the time for playback of the broadcast content (S3303). For example, as shown in the reproduction list of FIG. 31, regarding the “anime special feature”, it can be seen that the radio program “today's animation” is reproduced from 10:00. From, it receives radio programs and uses them as content for playback.

  Then, the reproduction content order determination unit 3106 determines the time for reproducing the net content (S3304). For example, between the current time of 8:45 and 11:00, it is stated in the playlist that traffic information will be distributed at 9:00 on the WEB site “http://www.traffic.com/”. Therefore, the playback content order determination unit 3106 accesses the WEB and acquires traffic information at 9:00. As a result, as shown in FIG. 35, the playback content order determination unit 3106 has already accumulated the free time 3601 to 3603 after the traffic information and the time during which the content of the radio program is played are determined. It is the playback time of the music content that is present.

  Next, between the current time 8:45 and 11:00, the free time excluding the time (30 minutes) for reproducing broadcast content and the time (3 minutes) for reproducing traffic information, that is, 102 minutes (135 -33 = 102 minutes) and the total time (95 minutes 32 seconds) of the music searched in step S3301 are compared (S3305). In this case, since the total performance time is shorter, the process proceeds to step S3307. On the other hand, if the total performance time is longer, not all music can be reproduced, and the process advances to step S3306.

  When the total performance time is longer than the free time, the playback content order determination unit 3106 stores the playback history of the past music in order to keep the music searched in step S3302 within the free time calculated in step S3305. Is used to select music to be played (S3306). For example, the contents are determined to be played back in order from music that has not been viewed recently. Further, as described in the first embodiment, music content to be played may be selected in consideration of the current situation.

  On the other hand, if the total performance time is shorter than the free time, even if all the music searched in step S3302 is selected as the playback content, it cannot be filled with music until 11 o'clock, so the playback content order determination unit 3106 Until 11 o'clock, it is not filled with music, and the end time is advanced (S3307).

  Subsequently, the playback content order determination unit 3106 determines the playback order of music (S3308). At this time, the music playback order is determined using the music playback history. For example, a song that has not been viewed recently is preferentially played first. In addition, music that is highly likely to be reproduced in a radio program or the like is reproduced in a time zone that is different from the time zone in which the radio program is broadcast.

  Then, the playback content selection unit 3107 selects music content according to the determined order, and the content playback unit 3108 plays back the selected music content (S3309). For example, the content reproduction unit 3108 reproduces music while displaying a screen as shown in FIG. FIG. 36A shows a screen display example in which the title 3701 of the currently played music, the explanation 3702 regarding the music, the source (storage medium) 3703 of the music, and the like are displayed.

  Here, since the time for acquiring traffic information is set at 9:00, the inter-music information acquiring unit 3105 determines whether or not the time has come (S3310). If it is 9:00, the process proceeds to step S3311. Otherwise, music playback continues.

  If it is 9:00, the inter-music information acquisition unit 3105 accesses a predetermined address described in the playlist selected by the playlist specification unit 3109 and acquires the traffic information content (S3311). ).

  If the playback content has ended (YES in S3312), the flow ends. In other cases (NO in S3312), the content reproduction is continued.

  With the above configuration, the accumulated content and the content acquired by broadcasting or network can be merged and automatically reproduced. Thus, the user can automatically play music related to the selected theme without switching to a radio between songs or performing an operation of acquiring information via a network. In particular, while driving a vehicle, in order to realize safe driving, it is possible to automatically acquire necessary content and reproduce music without operating an audio device.

  As shown in FIGS. 36 (a) to 36 (c), in this in-vehicle terminal 3100b, the same interface as when music is being reproduced is played even when broadcast content or content acquired from a network is being reproduced. Can skip music. For example, if the skip button on the operation remote controller shown in FIG. 36C is pressed while broadcast content is being played, the in-vehicle terminal 3100b finishes playing the program and plays the next music. To start. Conventionally, when a radio program is being broadcast, if you try to change to music playback, you must stop the radio, change to the music playback mode, and then perform many operations such as music selection. However, according to the in-vehicle terminal 3100b, it is possible to change from radio to music playback in the same manner as when music is being played back. In particular, as shown in FIG. 36 (b), when a button for controlling the reproduction of content is attached to a vehicle handle or the like, the content reproduction can be controlled with a small number of buttons, which is safe and convenient. is there.

  Furthermore, the in-vehicle terminal 3100b starts playing the next music when the music is skipped (see FIG. 37 (a)). At this time, the time until the time of radio broadcast or content playback by the network is reached. When the time is short, the music playback order is changed, and the music content corresponding to the time until the content whose playback time is determined is played back (see FIG. 37B). As the music content to be played back at this time, the music content that fills the gap between the skipped time and the time when the next broadcast content is played back without any gap is selected. If there is a free time between the music content and the broadcast content, the time is filled with BGM prepared in advance (see FIG. 37C).

  Further, in the case of traffic information obtained via the network, the in-vehicle terminal 3100b changes the order of the music content so as to minimize the delay in the time for reproducing the traffic information (see FIG. 38). If there is no appropriate music content, the music content with a performance time longer than the predetermined time is played and faded out in the middle to achieve a natural flow until playback of the content whose playback time is fixed. To do. Further, when the skip (forward) button is pressed while the broadcast content is being reproduced, the next music content is reproduced (see FIG. 39).

  In addition, when the reverse button is pressed during music content playback, the in-vehicle terminal 3100b plays back the music content that has been played back from the beginning (see FIG. 40). For this reason, if there is time before the broadcast content is reproduced, the time is filled in using BGM or the like stored in advance. In addition, when the reverse button is pressed before the traffic information acquired on the network (see FIG. 41A), after selecting the music content that minimizes the delay in reproduction of the traffic information, The traffic information is reproduced (see FIG. 41 (b)). Furthermore, when there is no appropriate music content, playback is performed with BGM or the like filled in between music and traffic information (see FIG. 41C).

  In the present embodiment, a predetermined reproduction list is used, but the reproduction list may be generated from a history played at home. Thereby, it becomes possible to perform on-vehicle equipment with a pattern played at home.

  Further, as in the first embodiment, music may be automatically selected using a history of music viewed in the past. That is, also in the present embodiment, the music list in the reproduction list may be automatically selected from the past history and the current situation. As a result, it is possible to automatically enjoy music content and broadcast content in combination with content acquired from public broadcasts or networks. In addition, by using the history of music played on devices other than in-vehicle devices such as home devices, even when there is not enough music playback history on in-vehicle devices, it is possible to select music that meets user preferences Become. In addition, by recommending music using a viewing history of a user other than the user, it is possible to reproduce the user's accumulated music according to the preference of others, and to increase the number of music reproduction variations.

  In the present embodiment, one playlist such as “animation special feature” is selected, but a plurality of playlists may be selected. At this time, it is only necessary to determine the content to be reproduced by calculating the logical sum of the music information and the information between songs described in the reproduction list. In particular, when there is not enough stored music, it may be impossible to enjoy content playback for a sufficient time unless a plurality of playback lists are used, which is effective in such a case.

  Further, in the present embodiment, the user first selects the playlist, but when the user plays the subsequent content using the music content currently being played back, the user selects the playlist. May be. Specifically, with respect to the system configuration of FIG. 30, using the tag information (identifier information such as title, artist, melody, release year) of the music content currently being played back, This can be realized by adding a playlist search unit for searching the stored playlist and determining the playback order of the contents based on the playlist searched by the playlist search unit. For example, at the same time as the reproduction of the music content of one song is finished, a music reproduction list is displayed as shown in FIG. 42, and the user is prompted to select the content to be reproduced later. As a result, the user can select the reproduction list while continuing the image of the music content selected first.

  In this embodiment, the performance time of music corresponds to one performance time for one song. However, the portion where the first chorus ends for one song is set as a delimiter performance time. Thus, a plurality of performance times may be set for one song (see the table in FIG. 34). If the performance time is too long to enter, more diverse music scheduling can be performed by using fade-out at the break performance time.

(Embodiment 5)
Next, a fifth embodiment of the present invention will be described.

  In the fourth embodiment, the inter-music information is specified and the music playback schedule is determined in advance. However, in this embodiment, music content or the like is played with a more flexible playback schedule. When live broadcasting is being performed, the user can decide whether to view or not according to the contents.

  For example, when a professional baseball broadcast is being broadcast on a radio broadcast or the like, there are cases where the user wants to watch the broadcast only when the user's favorite team scores a score. In this case, even if you switch to radio broadcasting for only the scenes that have been scored, there are many cases where you cannot fully enjoy the content because the score has already been scored, and when the score is scored, music is played back If you are on the way, you will suddenly switch to radio broadcasting. Therefore, in the present embodiment, the broadcast content is automatically stored, only the necessary content is cut out from the stored content, and only the necessary content is played when the music playback is finished. A possible music content playback system is described.

  FIG. 43 is a functional block diagram showing the configuration of the music content reproduction system according to the fifth embodiment. This music content reproduction system includes a server 4300a and an in-vehicle terminal 4300b connected via a public network. The server 4300a is an information server that provides various types of information to the in-vehicle terminal 4300b, and includes an inter-music meta information storage unit 4308. The in-vehicle terminal 4300b is an in-vehicle audio device or the like having a broadcast receiving function, and includes a reproduction list designating unit 4301, a reproduction list accumulation unit 4302, a music content accumulation unit 4303, a music content tag accumulation unit 4304, a reproduction content order determination unit 4305, a broadcast A content designation unit 4306, a broadcast content terminal storage unit 4307, an inter-music meta information acquisition monitoring unit 4309, a broadcast playback content terminal storage unit 4310, a playback content selection unit 4311, and a content playback unit 4312 are provided.

  The play list designation unit 4301 corresponds to the play list designation unit 3109 in the fourth embodiment, and is a user interface that allows the user to select and designate a play list stored in the play list accumulation unit 4302. The playlist storage unit 4302 is a hard disk or the like that stores a plurality of playlists to be specified by the playlist specification unit 4301. The music content storage unit 4303 is a DVD-ROM or the like in which music content is stored. The music content tag storage unit 4304 is a storage unit in which tag information of music content such as the title, artist, release year, and genre of music stored in the music content storage unit 4303 is stored. The playback content order determination unit 4305 is a processing unit that determines the playback order of content according to the playback list selected by the playback list specifying unit 4301 among the playback lists stored in the playback list storage unit 4302.

  The broadcast content designation unit 4306 is a user interface that designates broadcast content to be played back during playback of music content. The in-vehicle terminal 4300b monitors the broadcast content, and when the broadcast content of the condition specified by the user is broadcasted, the in-vehicle terminal 4300b can store and reproduce the broadcast content. It is a processing unit to input. For example, in the case of baseball broadcasting, it is a processing unit for performing designation such as a case where a supporting baseball team obtains a score, a case where the score is reversed, or a case where a score is obtained in the case of a soccer broadcast. As an example, as shown in FIG. 44, it is determined which broadcast content is to be used and what kind of content is to be acquired through dialogue with the user.

  The broadcast content terminal storage unit 4307 receives the broadcast and temporarily stores the received broadcast content in the in-vehicle terminal 4300b. The broadcast content terminal storage unit 4307 temporarily stores the broadcast content such as a hard disk so that the broadcast content can be reproduced later. It is a recording device that accumulates in a secondary storage medium. As a result, even content that has already been broadcast can be played back retroactively.

  The inter-music meta information storage unit 4308 is a hard disk or the like that stores meta-information meta information for determining content to be played back between music (between music content playback in the in-vehicle terminal 4300b). The inter-music meta information storage unit 4308 stores meta information sent in real time from a broadcasting station, and stores information related to the contents of the content being broadcast at that time. For example, in the case of a baseball broadcast, it is a portion where the outcount of the team currently attacking, the count of the strike ball, and the score progress of the game are accumulated. In some cases, the broadcast contents are multiplexed and distributed. Also, a service provider different from the broadcast distributor may maintain information on the progress of the score of the game on the server.

  The inter-music meta information acquisition monitoring unit 4309 is a processing unit that monitors and stores the meta information stored in the inter-music meta information storage unit 4308 from the in-vehicle terminal 4300b side. The inter-music meta information acquisition monitoring unit 4309 monitors whether there is a change in the inter-meta information by periodically accessing the server 4300a connected to a network such as the Internet. For example, it is a part that accesses a predetermined address of the server 4300a at intervals of 30 seconds and obtains information on whether or not there is broadcast content to be reproduced between music. In the case of the content of the baseball broadcast in the previous example, information such as whether the score of the team designated by the user has been changed or whether the inning has been completed is broadcast content to be played between music. It is a part to be acquired as information for determining whether or not it is appropriate. In general, in the case of content on the Internet, the meta information stored in the inter-music meta-information storage unit 4308 is often described in a format such as XML. Therefore, a processing unit that interprets the XML format uses this music. It may be included in the inter-meta-information acquisition monitoring unit 4309. For example, as shown in FIG. 44, when the condition that the score of the team “Tigers” is entered is specified, the XML content of the information of a predetermined URL is monitored as shown in FIG. Thus, it is obtained and monitored whether or not the value of the “Tigers” value changes. In addition, since the acquired meta information is text information, for example, even if the meta information for one day is stored in a hard disk or the like, the capacity of the recording medium included in the in-vehicle terminal 4300b is rarely pressed.

  When it is found that the broadcast content designated by the broadcast content designation unit 4306 is acquired by the inter-music meta information acquisition monitoring unit 4309, the broadcast reproduction content terminal storage unit 4310 stores the broadcast content terminal storage unit 4310 in the broadcast content terminal storage unit 4307. A memory or the like that temporarily accumulates content as broadcast content to be reproduced. This broadcast playback content terminal accumulating unit 4310, for example, in the broadcast content designating unit 4306, when the supporting team “Tigers” is designated as the scored content in the broadcast content of the baseball broadcast, If the information acquisition monitoring unit 4309 finds that “Tigers” has been scored, the broadcast content terminal storage unit 4307 has already broadcasted content that can be fully understood (for example, The content of the inning with the score is cut out as playback content and temporarily stored as broadcast playback content. In addition, since the meta information acquired by the inter-meta information acquisition / monitoring unit 4309 is accumulated as to which point in time to play back, for example, information on the time at which the inning changes or the time at which the bat changes is broadcast. Since it is stored as a history of content meta-information, it is possible to determine which part of the broadcast content is to be cut by using such information.

  The playback content selection unit 4311 plays music content in the order determined by the playback content order determination unit 4305, and when there is content stored in the broadcast playback content terminal storage unit 4310, selects the content between music Is a processing unit. The playback content selection unit 4311 sequentially selects the music content determined by the playback content order determination unit 4305. When playback of each song is finished, the broadcast content to be played back by the broadcast playback content terminal storage unit 4310 is determined. In some cases, the reproduced content is preferentially reproduced. When there is no content to be played back in the broadcast playback content terminal storage unit 4310, music is selected in order. For example, if there is a broadcast content that has been scored by the supporting team “Tyges” in the previous example, the currently playing music is finished playing, and the accumulated baseball broadcast (Tyges) Broadcasts that scored).

  The content playback unit 4312 is a playback device that plays back the content selected by the playback content selection unit 4311.

  The operation of the music content reproduction system configured as described above will be described with reference to the flowchart of FIG.

  First, in the same manner as in the fourth embodiment (steps S3301 to S3308 in FIG. 32), the in-vehicle terminal 4300b determines the playback order of the music content (S4601).

  Next, as shown in FIG. 44, the user inputs monitoring conditions for broadcast content (meta information) to be played between music by using the broadcast content specifying unit 4306 (S4602). Here, it is assumed that the condition that “Tigers” scores is set as a monitoring condition. The broadcast content terminal storage unit 4307 stores the broadcast content to be monitored in cooperation with the acquisition time information (S4603).

  The inter-meta information acquisition / monitoring unit 4309 determines whether the monitoring information (meta information acquired from the inter-meta information storage unit 4308) satisfies the monitoring condition set in step S4602 (S4604). If the monitoring condition is not satisfied, the process returns to step S4603, and broadcast content is continuously acquired and stored. If the monitoring condition is satisfied, the process proceeds to step S4605.

  When the monitoring condition is satisfied, the broadcast reproduction content terminal storage unit 4310 extracts the broadcast content of the monitoring information from the broadcast content terminal storage unit 4307 and temporarily holds it as the reproduction content (S4605). As shown in FIG. 47, the broadcast content terminal storage unit 4307 acquires and stores all the broadcasted content, and the contents related to the broadcast content acquired by the inter-music meta information acquisition monitoring unit 4309 are stored as a history. ing. Therefore, when the inter-music meta information acquisition monitoring unit 4309 acquires the inter-music information that satisfies the monitoring condition, the broadcast reproduction content terminal storage unit 4310 refers to the content of the previously acquired meta information, and the broadcast content terminal A part for cutting out broadcast content is extracted from the storage unit 4307.

  When there is broadcast content to be played back, the playback content selection unit 4311 determines whether the music content is being played back (S4606). When the music content is being played back, the music content is selected and played back by the content playback unit 4312 so that the music is played back continuously. Next, when the reproduction of one piece of music content is completed, the process proceeds to step S4607.

  When the reproduction of the music content of one song is completed, the reproduction content selection unit 4311 selects the reproduction content stored in the broadcast reproduction content terminal storage unit 4310 and causes the content reproduction unit 4312 to reproduce (S4607).

  After the broadcast content is played back, if there is music content to be played back again (NO in S4608), the process proceeds to step S4509. If not (YES in S4608), the flow ends.

  If the music content to be reproduced remains, the music content is subsequently reproduced (S4609), and the process returns to step S4603. Eventually, as shown in FIG. 48, broadcast content is reproduced between music content.

  With the above operation, it is possible to select and reproduce necessary broadcast contents from the already broadcast contents during the reproduction of the music contents. This eliminates the need for an operation for viewing other media such as a radio while playing music, and allows the user to concentrate on driving the vehicle.

  In the present embodiment, the broadcast content is played between music content playbacks. However, while the vehicle is in operation, if the broadcast content is suddenly inserted while listening to music, May cause problems. Therefore, by adding a driving status monitoring unit that monitors the current driving status of the vehicle to the in-vehicle terminal 4300b, for example, when the vehicle is in the middle of a curve or when the turn signal is turned on due to a lane change, etc. The content may not be reproduced. Conversely, the broadcast content may be inserted only when the vehicle is stopped by acquiring the side brake and the vehicle speed with the driving information monitoring unit.

  In this embodiment, the inter-music meta information acquisition monitoring unit 4309 detects the beginning of the content to be reproduced by monitoring the meta information and accumulating the history, but the meta information to be monitored is acquired. The start point of the playback content may be a time point that is back by a predetermined time (for example, 5 minutes) from the moment when the playback is performed.

  In this embodiment, the example of baseball broadcasting has been described as the broadcast content. However, traffic information may be monitored and inserted as information between music only when the information changes.

  In the present embodiment, an example of information that does not depend on a position such as a location such as broadcast content has been described. Furthermore, an example in the case of information depending on position will be described. For example, as shown in FIG. 49, it is assumed that a restaurant exists ahead of the vehicle and information related to the menu of the restaurant is acquired in advance via a network or the like. At this time, as shown in FIG. 49A, after the acquired information is acquired, it can be inserted between the first songs. However, in some cases, it is better to check the information about the restaurant menu after sufficiently approaching the restaurant and confirming the appearance of the restaurant. In particular, even if restaurant menu information is provided in advance, it may not be possible to determine whether or not to stop by the restaurant until the appearance of the restaurant is confirmed.

  Therefore, after acquiring information about a restaurant, it is necessary to reproduce the information after sufficiently approaching the restaurant, rather than reproducing the information immediately. However, it does not make sense to provide information after passing the restaurant. Therefore, it is necessary to perform scheduling so that information can be reproduced between songs when approaching the restaurant sufficiently, based on the vehicle speed, restaurant location information, and the time of music data to be reproduced. In the example of FIG. 49, after acquiring restaurant information, when reproducing information between contents, the information is reproduced at the timing between the music as close to the restaurant as possible without passing through the restaurant at an appropriate timing. Information can be reproduced (FIG. 49 (b)). As described above, when the information to be reproduced is information depending on the position, it is possible to reproduce the information at an appropriate timing by selecting the timing between music in a range not passing through the position. The same applies to traffic information at intersections.

  The present invention is a content playback device such as an audio / video recording / playback device, a car navigation device, a personal computer, a music player, etc., in particular, a content playback device having a broadcast mass storage device, and reading content from the mass storage device. It can be used as a content playback device that plays back and a content playback device that has a function of receiving a broadcast such as a radio broadcast.

1 is an external view of an in-vehicle content playback device in an embodiment of the present invention. It is a functional block diagram which shows the structure of the vehicle-mounted content reproduction apparatus. It is a figure which shows the example of the node database memorize | stored in the map data storage part. It is a figure which shows the example of the log | history data accumulate | stored in the log | history data storage part. It is a figure which shows the example of the music data memorize | stored in the music content memory | storage part. It is a flowchart which shows the operation | movement procedure about accumulation | storage of the historical data by the vehicle-mounted content reproduction apparatus. It is a flowchart which shows the operation | movement procedure of the music selection by a vehicle-mounted content reproduction apparatus. It is a flowchart which shows the extraction of the correlation by a correlation extraction part, and the specific detailed process sequence of the strongest correlation. It is a figure which shows the example of the item used for the correlation extraction by a correlation extraction part. It is a figure which shows the example of the combination of the present condition and the music selected automatically. It is a figure which shows the example of a screen display when there exist two or more highest music selection ratios in automatic music selection. It is a figure which shows the example of a screen display which displayed the performance schedule of each music determined by automatic music selection on a driving | running route. It is a figure which shows the whole structure in Embodiment 2 of this invention. FIG. 14 is a functional block diagram illustrating a configuration common to a home content reproduction device and a portable content reproduction device illustrated in FIG. 13. (A) shows an example of history data stored by the portable content playback device, and (b) is a diagram showing an example of history data stored by the home content playback device. It is a functional block diagram which shows the structure of the content management apparatus shown by FIG. It is a figure which shows an example of the transfer reference | standard shown to a user by the display part of the content management apparatus shown by FIG. It is a flowchart which shows the flow of a process of the transfer music determination part, a music erasure | elimination part, and a music transfer part. It is a flowchart which shows the detail of the erasure | elimination music candidate extraction process (S41) in FIG. It is a flowchart which shows the detail of the transfer music candidate extraction process (S43) in FIG. It is a figure which shows the list of the programs currently recorded on the home content reproduction apparatus. It is a figure which shows the historical information regarding the "world business news" memorize | stored in the 2nd log | history memory | storage part. It is a figure which shows the historical information regarding the "world business news" memorize | stored in the 1st log | history memory | storage part. It is a functional block diagram which shows the structure of the content reproduction apparatus in Embodiment 3 of this invention. It is a schematic diagram which shows the flow of the radio broadcast received by a receiving part. It is a figure which shows the example of a display screen of the selection criteria for reproducing | regenerating a content. It is a flowchart which shows the operation | movement procedure about a selection reference | standard. It is a functional block diagram which shows the structure of the content reproduction apparatus in an application example. It is a figure which shows an example of historical information, such as a broadcast program which the user actually listened. It is a functional block diagram which shows the structure of the music content reproduction system in Embodiment 4 of this invention. It is a figure which shows an example of a reproduction list. 10 is a flowchart showing the operation of the music content reproduction system in the fourth embodiment. It is a figure which shows the example of a selection screen of a reproduction list. It is a figure which shows the example of a search result of a reproduction list. It is a figure which shows a mode that the reproduction | regeneration order of a content is determined. It is a figure which shows the example of a screen display and operation button when music content is reproduced | regenerated. It is a figure which shows the reproduction | regeneration order when reproduction | regeneration of a music content is skipped when the reproduction time of broadcast content cannot be shifted. It is a figure which shows a reproduction | regeneration order when reproduction | regeneration of a music content is skipped in the case where traffic information can be accumulated and reproduction | regeneration can be delayed. It is a figure which shows the reproduction | regeneration order when skipped during reproduction | regeneration of broadcast content. It is a figure which shows the reproduction | regeneration order when reproduction | regeneration of music content is reversed when the reproduction time of broadcast content cannot be shifted. It is a figure which shows a reproduction | regeneration order when reproduction | regeneration of a music content is reversed when traffic information can be accumulate | stored and reproduction | regeneration can be delayed. It is a figure which shows the example of a screen display when reproducing the following content using the music content currently reproduced | regenerated. It is a functional block diagram which shows the structure of the music content reproduction system in Embodiment 5 of this invention. It is a figure which shows the example of a screen display when inputting the acquisition conditions of a content. It is a figure which shows the example of meta information. 10 is a flowchart showing the operation of the music content reproduction system in the fifth embodiment. It is a figure which shows the content accumulate | stored in a broadcast content terminal storage part. It is a figure which shows the example of reproduction | regeneration of a content. It is a figure which shows reproduction | regeneration of the information depending on a position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 In-vehicle content reproduction apparatus 11 Map data storage part 11a Map data 11b Node database 12 Situation detection part 13 History data storage part 14 Destination prediction part 15 Correlation extraction part 16 Music selection part 17 Music content storage part 17a Music content 17b Music data 18 playback unit 19 speaker 131 history data storage unit 131a history data 1301 home content playback device 1302 portable content playback device 1303 content management device 1304 semiconductor memory card 1401 user input unit 1501 history data 1502 history data 1601 first history storage unit 1602 First music content storage unit 1603 Second history storage unit 1604 Second music content storage unit 1605 User input unit 1606 Display unit 1607 Transfer reference storage unit 608 Transfer music determination unit 1609 First history reference unit 1610 Second history reference unit 1611 Music erasure unit 1612 Music transfer unit 2401 Reception unit 2402 Analysis unit 2403 User specification unit 2404 Display unit 2405 Selection criterion storage unit 2410 Content playback device 2410a Content playback Device 2801 Reception history storage unit 3100a, 4300a Server 3100b, 4300b In-vehicle terminal 3101, 4303 Music content storage unit 3102, 4304 Music content tag storage unit 3103, 4302 Play list storage unit 3104 Inter-music information storage unit 3105 Inter-music information acquisition unit 3106 4305 Playback content order determination unit 3107, 4311 Playback content selection unit 3108, 4312 Content playback unit 3109, 4301 Playback list specification unit 43 6 broadcast content designating unit 4307 broadcast content terminal storage section 4308 between the music between meta information storage unit 4309 Music meta information acquiring monitoring unit 4310 broadcast reproduction content terminal storage section

Claims (9)

A content playback device for playing back content including music,
History data storage means for storing history data including a driving history of the car and information indicating the music that was being listened to during driving;
A music specifying means for specifying the type of music having a strong correlation with the current driving situation by referring to the history data stored in the history data storage means during driving of the car;
Playback means for playing music belonging to the specified type;
Destination prediction means for predicting the destination from the travel history and the current travel situation,
The content reproduction apparatus characterized in that the music identification means identifies a type of music having a strong correlation with the current running situation including the destination predicted by the destination prediction means. The content playback device further includes at least one of the following items as travel status: time, day of week, departure place, destination, required time from departure place to destination, travel route, weather, driver and passenger A situation detecting means for detecting,
The history data accumulating unit accumulates the history data including the vehicle traveling history detected by the situation detecting unit and information indicating the music that was listened to during the traveling,
The music specifying means refers to the history data stored in the history data storage means when the vehicle is running, so that at least one of the artist, genre and tone of the music strongly correlated with the predicted destination Identify one type,
The reproduction means includes a music content storage unit that stores a plurality of music pieces and music data indicating the types of the music pieces, and is specified by the music specifying means by referring to the music data. The content reproduction apparatus according to claim 1, wherein a music piece belonging to a type is selected, and the selected music piece is sequentially read from the music content storage unit and reproduced. The content reproduction apparatus further includes a travel route detection means for detecting the travel route of the vehicle as a series of nodes corresponding to preset main points,
The content reproducing apparatus according to claim 2, wherein the music specifying unit specifies a type of music having a strong correlation with a current situation including a travel route detected by the situation detecting unit. The content reproduction apparatus according to claim 3, further comprising display means for displaying the performance schedule of the music selected by the reproduction means so as to overlap the route along which the vehicle travels. 5. The content playback apparatus according to claim 4, wherein the playback means further changes the music performance schedule based on a user operation on the displayed music performance schedule. The music specifying means extracts only history data that matches a preselected item from a plurality of items constituting the running history and the running situation from the history data storage means, and is included in the extracted history data Based on the information indicating the music, calculate the artist, genre and music of the music most frequently selected in the past run, all artists of the artist, genre and music, selection ratio for all genres and music, 2. The content reproduction apparatus according to claim 1, wherein the calculated artist, genre, or music tone having the highest selection ratio is specified as the type of music having a strong correlation with the current running situation. The music specifying means displays, when there are a plurality of types of music most frequently selected in past driving, to that effect, and specifies one type according to a selection instruction from the user. The content reproduction apparatus according to claim 1. A content playback method for playing back content including music,
Storing history data in the history data storage means including information on the driving history of the car and the music that was being listened to during the driving;
A music specifying step for specifying a type of music having a strong correlation with the current driving situation by referring to the history data stored in the history data storage means during driving of the car;
A playback step of playing a song belonging to the specified type;
A destination prediction step of predicting a destination from the travel history and the current travel situation,
In the music specifying step, a type of music having a strong correlation with the current driving situation including the destination predicted by the destination predicting step is specified. A program for a content playback device for playing back content including music,
A program causing a computer to execute the steps included in the content reproduction method according to claim 8.

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