JP4001313B2 - Media player - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a digital player that broadcasts a large number of channels, or a media player that reproduces various service media such as CD audio and DVD video, and in particular, a song or movie that has been viewed by the player before. Relates to a media player in which viewing selection is not performed for a while.
[0002]
[Prior art]
For example, in an audio device, digitalization has progressed, and a digital audio in which audio data is digitally recorded on an optical disk such as a CD or MD from a cassette tape recorder that has been widely used as an audio player for reproducing various types of audio. Players are widely used. In recent years, a DVD audio player in which audio data is recorded on a DVD is also used. In this way, so-called package media in audio devices are digitized and diversified.
[0003]
Further, in these digital audio players, audio data to be recorded is compressed and recorded by various methods, but in recent years, audio data is widely compressed in the MP3 format. It has been widely used to record a large amount of audio data on a CD-R or CD-RW.
[0004]
On the other hand, as an audio device, a radio broadcast receiver has been widely used in addition to the above-mentioned package media reproduction. However, in recent years, digitalization by satellite broadcasting has progressed in particular, and CS digital audio broadcasting is already already in progress. More than 100 channels are being broadcast. Also, it is considered that not only multi-channel video but also multi-channel audio broadcasting by digitizing BS broadcasting, and multi-channel broadcasting by digitalization of terrestrial AM broadcasting FM broadcasting in the future. Is planned. In particular, a satellite broadcasting plan suitable for a receiver in a moving body such as a car is being promoted in each country including SDARS (Satellite Digital Audio Radio Service) in the United States, and more channels will be broadcast in the future.
[0005]
These digital audio broadcasts are not only listened to when the broadcasts are received, but with the recent development of various digital audio players as described above, the digital audio data transmitted by the broadcasts is recorded in digital data such as MD and DAT. Recording on a medium, carrying the data and listening with another audio player are also performed.
[0006]
Furthermore, with the recent development of the Internet, various audio data has been distributed over the Internet free of charge or for a fee. Users can download it temporarily and convert it into various recording formats using appropriate software. It is also converted, recorded on various recording media, and played back and listened when necessary. In this case as well, audio data is compressed in the MP3 format, recorded in large quantities on a CD-RW, etc. and used, and a large amount of audio data taken from the Internet can be carried and listened to by an appropriate audio player. It can be done.
[0007]
In recent years, large-capacity hard disks of about 30G have come to be provided at low cost, so digital broadcast data and Internet audio data received as described above are temporarily stored on the hard disk and edited accordingly. While being compressed to MP3 or the like, it is also widely used for recording on a large-capacity data recording medium such as a DVD-RAM, a CD-RW as described above, and an MP3 player using a one-chip memory. To be done.
[0008]
Among various types of media, in addition to the above-described audio, for example, DVDs that handle video digital data have become widespread, and many DVD software programs have been provided. In addition, various video data can be compressed by MPEG2 using a DVD-RAM and recorded by each person. Furthermore, with the widespread use of digital cameras and digital video cameras, image data is also digitized and recorded widely, and digital camera data is output to a personal computer and edited for CD-R or CD. -Recording on RW etc. and viewing this is also performed. Similarly, data edited with a digital video camera can be linearly edited by a personal computer, and the data edited in the DVD-RAM directly or from the digital video camera can be recorded and viewed. It can be done.
[0009]
In addition, CS digital broadcasting, which digitally broadcasts images, broadcasts up to 200 channels day and night. BS broadcasting is also digitized to become multi-channel, and terrestrial waves are also digitally multi-channeled. In this way, it is expected that the number of images broadcast in the future will be extremely large. This is the same not only in Japan but also in the United States and Europe, and more and more channels are being developed all over the world. In particular, satellite broadcasting suitable for reception by a moving body such as a car is also planned, and a TV receiver for a vehicle can view programs of many channels with high image quality.
[0010]
Data transmitted by digital broadcasting is also often transmitted after being compressed in the MPEG2 format in the same manner as the above-mentioned various digital video data, and the above-described technology for handling digital video data can be used as it is. Viewers of these broadcasts can compress and record on a DVD-RAM or the like by the recording method described above, and reproduce and view it when necessary.
[0011]
In addition to the distribution of audio data as described above on the Internet, a large amount of data can be distributed at high speed using an optical cable network spread over a wide area in recent years, so that a large amount of image data can be easily downloaded from the Internet. It can be stored in a hard disk capable of recording a large capacity as described above, or recorded on a DVD-RAM and reproduced and viewed on a DVD player when necessary.
[0012]
[Problems to be solved by the invention]
As described above, in recent audio players that use recording media such as CD, MD, DVD, etc., a large number of songs are recorded on one recording medium by the progress of compression technology of audio data recorded on these media. It comes to use. In addition to commercially available audio data recorded on these recording media, various audio data such as those recorded from various broadcasts including CS digital broadcasts and downloaded from the Internet are compressed with MP3 etc. It is also widely practiced to record a large amount of data and listen to it through an audio player. Also, audio broadcasting is digitized in CS, BS, terrestrial waves, etc., and broadcasting is performed on an extremely large number of channels, or the broadcasting is about to be performed.
[0013]
In particular, in a vehicle audio device, a CD changer, an MD changer, and even a DVD changer are used, so that a player can easily select a large number of songs with a single player. It can be handled at once. In addition, the vehicle audio system also has a radio receiver, so that it is possible to receive CS digital audio broadcasts. In this audio player, a desired song is always selected from several hundred songs or more. And can listen to it.
[0014]
On the other hand, in a device that handles video data, various videos including movies are broadcast from a very large number of channels in CS digital broadcasting as described above, and as a player for recording these various videos, Since it is possible to play back a program downloaded from a broadcast or the Internet onto a hard disk or recorded on a DVD, a single player can handle a large number of videos.
[0015]
In particular, an in-vehicle TV broadcast receiver can receive various multi-channel digital broadcasts such as the above-mentioned CS digital TV broadcasts, and can reproduce many videos by installing a DVD changer. In this case, a single player can reproduce a large number of movies and the like.
[0016]
Therefore, a player that handles audio and a player that handles video can play a large amount of music and video on a single player. When switching to another channel, there are times when the song that was heard on the previous channel is being broadcast on that channel. In such a case, the channel is switched to another channel. In addition, when the channel is switched as described above, even if a song that has not been heard at the beginning is broadcast, the next song may be a song that was heard on the previous channel. In such a case, the user often switches to another channel.
[0017]
Similarly, when listening to an audio broadcast, for example, when you want to listen to a CD song and switch the operation of the audio player to play a CD, the played song is the song you listened to earlier on the audio broadcast. There is also. Alternatively, it may be a song that was being listened to while the CD was being played.
[0018]
In this way, when a large amount of audio can be selected, the same song is often selected, for example, the first song on the current hit chart is broadcast on many channels and is recorded on its own CD. Since the same music is frequently output from this player, the user has to frequently operate the player to listen to other music. This is not unlikely to be the same as the player handling audio as described above, but the same is likely to occur in players handling video. A particularly famous movie may be broadcast many times, and the movie may exist on one's own DVD.
[0019]
As described above, in a media player that handles audio and video that are currently used, and especially in a media player that will be used in the future, the song that has just been heard or the video that has been viewed is selected many times. The user has to change the channel or the playback device each time, which is troublesome.
[0020]
Therefore, according to the present invention, in a media player that reproduces and outputs audio data and visual data, the selection is automatically changed to another song or video so that the previously viewed song or video is not viewed again. It is a main object to provide a media player that can perform the above.
[0021]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a selection means for arbitrarily selecting audio data or visual data to be reproduced and output, a viewing history memory for recording information specifying a viewed song or video, and a viewing history memory. Viewing history search unit for searching recorded information And viewing history erasing means for erasing old data from the viewing history memory when the data in the viewing history memory is a predetermined number or more, or when a predetermined period or more has elapsed. The viewing history search unit searches whether or not a music or video to be output exists in the viewing history memory at the time of playback output of the media player, and the selecting means outputs the viewing history search unit. Song or When it is detected that a video is present in the viewing history memory, the media player is characterized in that the selection of audio data or visual data to be reproduced and output is changed.
[0022]
In another aspect, the media player is characterized in that the data to be reproduced and output is digital broadcast reception data, MP3 audio data, CD or MD or DVD recording data, or Internet reception data. Is.
[0023]
In another aspect, the viewing history search unit searches the data in the viewing history memory only for data within a predetermined period.
[0025]
As another aspect, the viewing history memory is a media player characterized in that viewing histories of a plurality of players connected to the media player are recorded in common.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an example of an audio player as a media player according to the present invention, and in particular, an audio player having a digital audio broadcast receiver and a disc player for reproducing audio data recorded on a CD-R or CD-RW in MP3 format. FIG. 3 is a functional block diagram showing main functional blocks and their mutual relationship in one embodiment.
[0027]
In this embodiment, the digital audio broadcast receiver 9 and the MP3 audio player 10 are connected to the head unit 28 that controls the entire audio player. The system controller 24 of the head unit 28 controls the digital audio broadcast receiver 9. The operation of the control unit 8 is controlled, and the operation of the control unit 21 of the MP3 audio player 10 can be controlled. In addition, if necessary, for example, a CD changer, a DVD audio player, etc. can be connected and used by the same system.
[0028]
Digital audio broadcasting [DAB (Digital Audio Broadcasting)] includes a plurality of data fields into which audio signal data of a predetermined program is inserted by frequency multiplexing, a correspondence between the program and the data field, and an information field in which various information is recorded. The frequency multiplex broadcast receiver receives the frequency multiplex broadcast signal, demodulates the frequency multiplex signal inserted in the data field corresponding to the program specified by the user, converts it to an audio signal, and outputs it. .
[0029]
The digital audio broadcast receiver 9 receives radio waves of digital audio broadcast broadcast over 100 channels by the antenna 1, and the received radio waves demodulate the RF signal by the digital broadcast RF unit 2, and the signal Is output to the digital broadcast decoding unit 3, where the information data 4 and the audio data are separated from the digital audio data, each decoded, and the received data 4 is taken into the control unit 8, and the audio data 5 is converted from digital to analog. It is output to the amplifier 29 of the head unit 28 via the device 6.
[0030]
The data adopted in the digital audio broadcasting is shown in FIG. 3. In the frame structure of mode II shown here, one frame length is 24 ms, and a 2-symbol synchronization unit SYNC and a 3-symbol high-speed information channel unit FIC ( Fast Infomation Channel) and a data field portion DFL of 72 symbols. The synchronization unit SYNC includes a null symbol and a synchronization information symbol used for recognizing the start point of the frame. In the high-speed information channel section FIC, as information data, time / date data, program arrangement data, service (program) name (label), program identification code SId (Service Identification Code), information on the song being broadcast, etc. Are inserted, and an error correction CRC (error detection code using a cyclic code) is added at the end.
[0031]
The data field section DFL is divided into 72 data fields, and broadcast signals of predetermined programs are inserted into each data field by frequency division multiplexing so that 6 to 8 programs can be broadcast simultaneously from one broadcasting station. It has become. Which data field corresponds to which program is designated by program sequence data included in the high-speed information channel unit FIC. Although FIG. 3 shows the frame structure of mode II for satellite broadcasting using the 1.5 GHz band, the frame structure of mode I using the frequency band of 50 MHz to 250 MHz has almost the same configuration, and one frame length is 96 ms. It has become.
[0032]
The digital audio broadcast receiver 9 in FIG. 1 includes a channel selection unit 7. Here, a user channel selection instruction directly input from an externally operable operation unit 32, and a system controller 24 of the head unit 28 described later. In response to the channel selection change instruction from, a channel selection instruction signal is output to the channel selection unit 7 of the receiver so that an arbitrary channel and program can be selected.
[0033]
On the other hand, the MP3 audio player 10 connected to the head unit 28 of this audio player is shown as reproducing a CD-R or CD-RW as a CD-RW capable of recording 100 or more songs by compressing in the MP3 format. The CD 1 is applied to the player 12 and rotated by the motor 13, and the music data recorded at a predetermined position can be read by the pickup 14 that moves in the radial direction of the disc.
[0034]
The motor 13 and the pickup 14 are controlled by a servo driver 16. The servo driver 16 directly inputs a music selection instruction of a user directly input from an external operation unit 33 and a music selection change instruction from a system controller 24 of a head unit 28 described later. Thus, the operation of the pickup 14 can be controlled to select an arbitrary tune.
[0035]
The RF signal captured by the pickup 14 is amplified by the RF amplifier 15 and input to the MP3 system decoder 17. Here, from the data recorded in the MP3 format, the information data 18 of the ID3 tag portion that records information such as the song name and artist name of the recorded song as described later is separated from the audio data 19 that records the audio signal. To decode. The operation of the MP3 system decoder 17 is controlled by the control unit 21, and the audio data 19 decoded here is output to the amplifier 29 of the head unit via the digital / analog converter 20 as in the conventional apparatus.
[0036]
In the data recorded after being compressed in the MP3 format, an ID3 tag is recorded in the last 128 bytes of the file of each song, and the data format is configured as shown in FIG. That is, in the first 3 bytes of the tag portion, the characters “TAG” indicating that this portion is a tag are fixedly recorded. The next 30 bytes are a track name, that is, a part for recording a track name, and a title name as a name of the music is recorded in this part. The next 30 bytes are an AIRISTNAME, that is, a part for recording an artist name, and the next 30 bytes are an ALUM NAME, that is, a part for recording an album name.
[0037]
The next 4 bytes are used for recording YEAR, that is, the year when this song was released. The next 30 bytes are used as a part for recording COMMENT, that is, an arbitrary comment, and free data can be recorded in this part. Finally, the GENRE whose correspondence between the number and the genre name has been made clear, that is, the genre number can be recorded.
[0038]
In the head unit 28 shown in FIG. 1, the system controller 24 outputs a control signal to the control unit 8 that controls the operation of the digital audio broadcast receiver 9 as described above, and the control unit 21 that controls the MP3 audio player 10. The control signal is output to the unit so that the whole can be operated as a single audio player. In addition, an amplifier 29 is provided therein, and an audio signal from the digital / analog converter 6 of the digital audio broadcast receiver 9 and an audio signal from the digital / analog converter 20 of the MP3 audio player 10 are selectively input. Such an audio signal can be output from the speaker 30.
[0039]
The head unit 28 is further provided with a viewing history memory 27, for example, a song title, and an artist as necessary, among the information data 4 separated and decoded by the digital broadcast decoding unit 3 in the digital audio broadcast receiver 9 as described above. A name is input and recorded, and at the same time, the date of listening to this broadcast, that is, the current date is recorded. Similarly, from the information data 18 in the ID3 tag separated by the MP3 system decoder 17 in the MP3 audio player 10, the song name, the artist name, and the current date are recorded together as described above. Recording in these memories is performed by the viewing history recording / erasing unit 26.
[0040]
As a result, data as shown in FIG. 5A is recorded in the viewing history memory 27, for example. That is, in this example, the artist name is recorded in addition to the song name, and the viewing date and time when the song is listened to is recorded. Here, an example provided with a memory for listing and recording 50 songs is shown. No. 1 from the most recently listened song. 1 to No. Records up to 50. The list in the viewing history memory 27 is set so that the song output from the audio player is the latest song No. No. 1 is recorded in the memory portion, and the data so far is carried down one by one in order. 50 data is erased. Of the above viewing dates, year data can be deleted when it is deemed unnecessary.
[0041]
The recorded contents of the viewing history memory 27 can be searched by the viewing history memory search unit 25, and either the digital audio broadcast receiver 9 or the MP3 audio player 10 tries to output a new song as described above. At this time, the system controller 24 takes in the information of the song and outputs it to the viewing history search unit 25. In the viewing history search unit 25, whether there is the same song as that song in the viewing history memory 27, that is, recently in this audio player. Search for the song you listened to.
[0042]
As a result, by searching for the viewing date in this list, if it is detected that the song has been listened to within an arbitrarily set date, such as within 10 days, the current digital audio broadcast is received. When this is done, the system controller 24 instructs the channel selector 7 to change to another channel or program. At this time, the channel selection unit 7 changes the channel in a predetermined order such as ascending order or descending order of the channels. In addition, when the MP3 audio player 10 is operating, the system controller 24 instructs the music selection unit 22 to play other music. At this time, the music selection unit 22 reproduces the next predetermined song including the case of random reproduction. When the next channel or the next song is selected in this way, if the song already exists in the viewing history memory 27 and has been listened to within the predetermined number of days, the song selection is changed again and this operation is performed. repeat.
[0043]
In addition, the viewing history recording / erasing unit 26 appropriately searches the viewing date data in the viewing history memory 27, and deletes data that has passed a predetermined period, such as data that has passed one month or more, and stores the data in the memory here. However, even if it is less valuable, it is possible to prevent the processing speed from being lowered by performing an unnecessary search during the viewing history search as described above.
[0044]
An audio player composed of the functional blocks as described above can be processed in sequence according to an operation flow as shown in FIG. This will be described below with reference to the functional block diagram of FIG. In the operation processing by the viewing history search in the audio player, after the audio player is turned on (step S1), it is first determined whether or not there is expired data in the viewing history memory (step S2). This operation can be performed in the viewing history search unit 25 in FIG. 1 by searching the viewing history memory 27 for the viewing date of a list as shown in FIG.
[0045]
As a result, for example, those having passed a predetermined period such as those having passed one month or more are deleted (step S3). This operation can be performed by the operation of the viewing history recording / erasing unit 26 in accordance with an instruction from the system controller 24 that has input the search result of the viewing history search unit 25. As described above, when there is no expired data in the viewing history memory 27, and after the expired data is deleted and deleted, or at the same time, the normal operation of the audio player is started. (Step S4).
[0046]
Next, for example, when a digital audio broadcast is received, a channel is selected, and music selection is designated in the MP3 audio player 10 (step S5). This operation is performed by the channel selection unit 7 and the music selection unit 22 in FIG. 1, and is performed by the user operating the operation unit 32 or the operation unit 33. When the player is activated, the last mode can be selected as a channel in which the player has been used or a song previously stored.
[0047]
Thereafter, the information data is read (step S6). This operation is performed in the digital audio broadcast receiver 9 by the digital broadcast decoding unit 3 taking in the information data in the data frame shown in FIG. 3, and in the MP3 audio player 10, it is recorded in the MPEG format. For example, the information data shown in FIG. 4 is read from the audio data. At this time, at least the song name is read, for example, a plurality of artists are playing with the same song name, such as classical music and nursery rhymes, so it is preferable to set the artist name to be read. In this example, the artist name is read together with the song name.
[0048]
Based on the information data thus read, in order to know whether the song currently being received or the song being played is a song that has been viewed recently on this audio player, the same song It is determined whether or not it exists in the viewing history memory 27 (step S7). This operation is performed in the viewing history search unit 25 in FIG.
[0049]
As a result of this search, if it is determined that there is the same song in the viewing history memory 27, the channel is changed or the song selection is changed (step S12), and the process returns to step S6 again to read the information data of the next song, The same operation is repeated thereafter. In this determination, when it is determined that there is no same song in the viewing history memory 27, it is determined whether or not the viewing history memory is a predetermined number or more (step S8). Here, for example, as shown in FIG. 5A, the viewing history memory has a capacity of 50 songs, and when the predetermined number is 50, when 50 songs are already recorded, it is determined that the number is more than the predetermined number. The oldest data is deleted from the list (step S9).
[0050]
In the embodiment shown in FIG. 5 (a), the items are listed in order of viewing date. The song with 50 song titles “BE TOGETHER” and artist name “Ami Suzuki” has the earliest viewing date of July 21, 2000 AD, so this song will be deleted. As a result, the capacity to input new song information data was created. New information data is written into the memory portion corresponding to 1 (step S10).
[0051]
When it is determined in step S8 whether or not the viewing history memory is equal to or greater than a predetermined number, for example, the number of stored music is a predetermined number, as in the above example, which is not 50 songs. If it is determined that there is not, it means that there is still a free memory capacity, so the process proceeds directly to this step S10 and new information data is written into the free memory portion. The data to be written into the memory is not necessarily listed in this memory. Although it is not necessary to record, it is possible to search for a song even if it is recorded at random, but FIG. 5 shows an example of listing in order of viewing date so that this operation can be easily understood. .
[0052]
In the example of FIG. 5, when song information data is stored as shown in FIG. 5A, a new song that is not yet in this list is received by receiving a broadcast or playing a CD. In the state where the user wants to listen to the song, the information on the song is shown in FIG. In this list, the memory moves forward in order, and the previously erased No. 1 is written. No. 50 in the memory portion. 49 songs move. In the example shown in the figure, a song with a new song name “Emotions” and an artist name “Mriah Carry” is recorded together with the date “August 21, 2000” on that day.
[0053]
Next, it is determined whether or not to end the operation of the player (step S11). When the user performs a pause or end operation of the audio player, the operation process is ended (step S14). However, if such an operation has not been performed yet, it is determined whether or not a new song has been changed (step S13). If it is determined that the song has not been changed, the process returns to step S11 again, and this determination operation is repeated until a signal for ending the operation of the player is input to end the operation or a new song is obtained.
[0054]
When it is determined that the song has changed to a new song, that is, when the song is changed while the same channel is still selected in the digital audio broadcasting, or when it is automatically changed to the next song by the MP3 audio player, or When the channel is changed by the user's operation or the music selection is changed, the process returns to step S6 again, and information data of a new music is read. Thereafter, in step S11, in determining whether or not to end the operation of the player, this operation is repeated until it is determined to end.
[0055]
For example, when the digital audio broadcast is received and the operation is immediately switched to the MP3 audio player, the above operation is performed in the same manner, and vice versa. As described above, the audio player is connected to the digital audio broadcast receiver and the MP3 audio player as described above, for example, a normal CD player, a CD player with a CD changer, a DVD Even if various audio players such as an audio player are connected, the same operation is possible.
[0056]
Furthermore, although the audio player has been described in the above embodiment, it can be similarly operated in a visual player that handles video. In that case, for example, a digital television receiver is connected to the head unit, and further a DVD player, a DVD player with a DVD changer, a hard disk for recording video, and the like, a title of a video such as a movie, By recording the data of the production company or the like, it is possible to prevent a recently watched movie from being selected and viewed.
[0057]
【The invention's effect】
In the present invention, a selection means for arbitrarily selecting audio data or visual data to be reproduced and output, a viewing history memory for recording information specifying a viewed song or video, and a viewing for searching for information recorded in the viewing history memory A history search unit, wherein the viewing history search unit searches whether or not a music or video to be output exists in the viewing history memory at the time of reproduction output of the media player, and the selection means includes the viewing history search unit In the case of a media player characterized by changing the selection of audio data or visual data to be played back and output when it is detected that the video to be output in the viewing history memory is present, In a media player that reproduces and outputs audio data and visual data, for example, CS digital Even when a very large number of songs or videos are selected and played back and output, such as multi-channel broadcast data such as broadcast, or data compressed in MPEG format, the previously watched songs and videos can be viewed again Therefore, the media player can automatically change the selection to another song or video.
[0058]
The media player is characterized in that the data to be reproduced and output is digital broadcast reception data, MP3 audio data, CD or MD or DVD recording data, or Internet reception data. The above effects can be obtained by using an audio player that selectively reproduces and outputs audio data, and a visual player that selectively generates and outputs various video data as described above. Can produce various effects.
[0059]
In the above-mentioned media player, the viewing history search unit searches only data within a predetermined period in the data in the viewing history memory. Is no longer repeated and output, and appropriate music and video playback output is automatically performed. .
[0060]
The media player comprising: viewing history erasure means for erasing old data from the viewing history memory when the data in the viewing history memory is a predetermined number or more, or when a predetermined period or more has elapsed. In such a case, when the data in the viewing history memory is over a predetermined number, the data is deleted. For example, even when the data is within a predetermined period, a predetermined number or more is viewed when a large number of songs or videos are viewed. The data can be erased and out of the search range, and an appropriate selection can be made. In addition, in the case where the data in the viewing history memory is erased when a predetermined period or more elapses, for example, even if the data is within a predetermined number, the song or video is viewed long ago. Sometimes it is outside the scope of the search and an appropriate selection can be made. Furthermore, a more appropriate selection is possible by combining both.
[0061]
Further, in the media player, wherein the viewing history memory records the viewing history of a plurality of players connected to the media player in common, the viewing history memory is commonly used by the plurality of players. For example, a song or video that has been recently viewed on a broadcast receiver is prevented from being selected and played back on a DVD player that is subsequently operated, or vice versa. However, it is possible to prevent the subsequent broadcast receiver from receiving the same song or video, and to automatically change the selection to another song or video.
[Brief description of the drawings]
FIG. 1 is a block diagram of an embodiment in which a digital audio broadcast receiver and an MP3 audio player are connected in particular to an audio player as a media player of the present invention.
FIG. 2 is an operation flowchart of the same embodiment.
FIG. 3 is a data configuration diagram showing the contents of data transmitted by digital audio broadcasting.
FIG. 4 is a data configuration diagram showing the contents of ID3 tag data as information data of MP3 audio data.
FIGS. 5A and 5B are examples of a memory list for explaining recording data in a viewing history memory according to the embodiment, where FIG. 5A is a viewing history memory before change, and FIG. 5B is an example of viewing history memory after change. .
[Explanation of symbols]
2 Digital broadcasting RF section
3 Digital broadcast decoding section
4 Information data
7 Channel selector
8 Control unit
9 Digital audio broadcast receiver
10 MP3 audio player
11 CD
15 RF amplifier
16 Servo driver
17 MP3 system decoder
18 Information data
21 Control unit
22 Music selection section
24 System controller
25 Viewing history search section
26 Viewing history recording / erasing section
27 Viewing history memory
28 Head unit

Claims (4)

A selection means for arbitrarily selecting audio data or visual data to be reproduced and output;
A viewing history memory that records information identifying the song or video that was viewed;
A viewing history search unit for searching information recorded in the viewing history memory ;
A viewing history erasure unit for erasing old data from the viewing history memory when the data in the viewing history memory is a predetermined number or more, or when a predetermined period or more has elapsed ,
The viewing history search unit searches whether or not a music or video to be output exists in the viewing history memory at the time of reproduction output of the media player,
The selection means changes the selection of audio data or visual data to be reproduced and output when it is detected that the music or video output by the viewing history search unit is present in the viewing history memory. .   2. The media player according to claim 1, wherein the data to be reproduced and output is digital broadcast reception data, MP3 audio data, CD or MD or DVD recording data, or Internet reception data.   2. The media player according to claim 1, wherein the viewing history search unit searches only data within a predetermined period in the data in the viewing history memory.   2. The media player according to claim 1, wherein the viewing history memory records a viewing history of a plurality of players connected to the media player in common.

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