JP2002073043A - Media player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a media player for reproducing and outputting audio data and visual data which changes selection into other pieces of music and videos automatically so as not to view and listen a piece of music or video previously viewed and listened once again. SOLUTION: A digital audio broadcast receiver 9 and an MP3 audio player 10, for example, are connected to a head unit 28 provided with a viewing and listening history memory 27 for storing the music names of pieces of music listened recently. For example, when the receiver 9 receives a piece of music, its music name or the like is read from information data, the data of the viewing and listening history memory 27 are searched by a viewing and listening history retrieving part 25, and when the piece of music is in the searched data, a channel is automatically changed into another channel by a channel selection part 7. Similarly also in the MP3 audio player, it is searched whether or not the information data of a piece of music to be reproduced is a piece of music listened recently stored in the viewing and listening history memory 27. When the piece of music is listened recently, the piecel is automatically changed into another piece of music.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a media player for reproducing various service media such as digital broadcasting broadcasting a large number of channels, audio of a CD, video of a DVD, and the like. Some songs, movies, and the like relate to a media player that allows the user not to select viewing for a while.

[0002]

2. Description of the Related Art For example, audio systems have been digitized, and as audio players for reproducing various types of audio, audio data has been digitally transferred from a cassette tape recorder, which has conventionally been widely used for analog data, to an optical disk such as a CD or MD. 2. Description of the Related Art A recorded digital audio player has been widely used. In recent years, DVD audio players that record audio data on DVDs have also been used. Thus, the so-called package media in audio devices has been digitized and diversified.

Further, in these digital audio players, audio data to be recorded is compressed and recorded by various methods, and among them, compression of audio data in MP3 format has recently been widely performed. Various audio data can be stored on CD-R or CD
-It is widely used to record and use a large amount of data in RW.

On the other hand, radio broadcasting receivers have been widely used as audio devices in addition to the above-described reproduction of package media. Recently, however, digitization by satellite broadcasting has been progressing, and CS digital audio broadcasting has recently been used. Currently broadcasts over 100 channels. It is also considered that by digitalizing BS broadcasting, not only multi-channel video but also multi-channel audio broadcasting will be broadcasted. In addition, multi-channel broadcasting based on digitization of terrestrial AM broadcasting FM broadcasting will be considered. It is planned. In particular, the plan for satellite broadcasting suitable for receivers in mobiles such as cars is the SDARS (Satellite Digital Audio Radio Service) in the United States.
And other countries, and more channels will be broadcast in the future.

[0005] These digital audio broadcasts are not only listened to when a broadcast is received, but also due to the recent development of various digital audio players as described above, the digital audio data transmitted by the broadcast is transmitted to the MD.
In some cases, the data is recorded on a digital data recording medium such as a DAT or DAT, and the data is carried to be listened to by another audio player.

Further, with the recent development of the Internet, various types of audio data have been distributed over the Internet for free or for a fee. Users can temporarily download the data and download it temporarily using appropriate software. Convert to recording format and record on various recording media,
They also play and listen when needed. Here too, audio data is compressed in MP3 format and
A large amount of audio data is recorded on an RW or the like and used, and a large amount of audio data imported from the Internet is carried and can be listened to by an appropriate audio player.

In recent years, since a large capacity hard disk of about 30 G has been provided at a low cost, digital broadcast data and Internet audio data received as described above are temporarily stored in the hard disk.
This is compressed into MP3 or the like while being edited as appropriate, for example, DV
Large-capacity data recording medium such as D-RAM, CD-RW as described above, and MP3 using one-chip memory
Recording and use in players and the like is also widely practiced.

In various media, in addition to the above-mentioned audio, in visual relations, for example, DVDs handling digital data of video have become widespread, and a large number of DVD software have been provided. DVD-RAM
Thus, various video data can be compressed by MPEG2 and recorded by each person. Further, with the widespread use of digital cameras and digital video cameras, digitizing and recording image data has been widely performed. Data of the digital camera is output to a personal computer, which is edited to produce a CD-R or CD. -Recorded on RW or the like and viewed. In addition, it is possible to perform linear editing on data taken with a digital video camera by using a personal computer.
-The data edited as described above can be recorded directly on the digital video camera in the RAM or can be viewed.

[0009] In CS digital broadcasting in which video is digitally broadcast, video broadcasting up to 200 channels is performed day and night. BS broadcasting is also digitized to become multi-channel, and terrestrial broadcasting is also digital. It is planned to increase the number of channels, and thus 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 multi-channels are being promoted worldwide. In particular, satellite broadcasting suitable for reception in a moving body such as a car is also being planned, and a television set for a vehicle will be able to view programs of many channels with high image quality.

[0010] Data transmitted by digital broadcasting is often compressed and transmitted in the MPEG2 format in the same manner as the above-described various types of digital video data, and the above-described technology for handling digital video data can be used as it is. And therefore viewers of these broadcasts can use DVD-RAM
For example, it is also possible to compress and record by the above-mentioned recording method, and to reproduce and view it when necessary.

In addition to the above-described audio data distribution on the Internet, a large amount of data can be distributed at a high speed using an optical cable network that has been widely spread in recent years. From a hard disk capable of recording a large amount of data as described above, or recorded on a DVD-RAM and reproduced and viewed by a DVD player when necessary. Become.

[0012]

As described above, in recent audio players that use recording media such as CDs, MDs, and DVDs, one recording medium has been developed due to the advancement of the technology for compressing audio data recorded on these media. A large number of songs are recorded on media and used. The audio data recorded on these recording media is not only commercially available, but also various audio data, such as those obtained by recording various broadcasts such as CS digital broadcasts and those downloaded from the Internet, are compressed by MP3 or the like. It is also widely practiced to record a large amount of music and play it on an audio player. In addition, audio broadcasting has been digitized in CS, BS, terrestrial waves, and the like, and broadcasting is being performed on an extremely large number of channels, or the broadcasting is about to be performed.

[0013] Particularly, in a vehicle audio apparatus, a CD changer, an MD changer, a DVD changer, and the like are also used, so that a single player can easily select a desired piece of music. Songs can be handled at once. In addition, if the vehicle audio device is equipped with a radio receiver, which enables the reception of CS digital audio broadcasts, the audio player always selects a desired song from several hundred or more songs. You can listen to it.

[0014] On the other hand, in a device which handles video data, various videos including movies are broadcast from an extremely large number of channels in CS digital broadcasting as described above, and these various videos are recorded. As a player, it is possible to reproduce what has been downloaded from a broadcast or the Internet to a hard disk, or what has been recorded on a DVD, so that one player can handle many images.

[0015] Further, in particular, an in-vehicle television broadcast receiver can receive various multi-channel digital broadcasts such as the CS digital television broadcast as described above, and reproduce many images by mounting a DVD changer. In such a system, a single player can reproduce a large number of videos such as movies.

Accordingly, a large number of songs and videos can be reproduced by a single player regardless of the player who handles audio or the player who handles video. When listening to, when switching to another channel, the channel may be broadcasting a song listened to in the previous channel. In such a case, it is necessary to switch to another channel. Also, when the channel is switched as described above, even if a song that has not been listened to at first is broadcast, the next song may be a song listened to in the previous channel. In such a case, the user often switches to another channel.

Similarly, for example, when currently listening to an audio broadcast, the user wants to listen to a song on a CD, and when the operation of the audio player is switched to the reproduction of a CD, the reproduced song is first listened to in the audio broadcast. Sometimes it's a song. Alternatively, there may be a song that was being listened to when the CD was being played just before.

As described above, when a large number of audios can be selected, the same music is often selected in particular. For example, the first music on the current hit chart is broadcast on many channels, Since the same song is frequently output from this player because it is also present on the user's CD, the user must frequently operate the player to listen to another song. This is also likely to occur in a player handling video, though not as much as in a player handling audio as described above. Particularly famous movies may be broadcast many times, and the movies may be present on their own DVDs and the like.

As described above, in the media player that handles audio and video currently used, and particularly in the media player that will be used in the future, the number of songs that have just been heard or the number of videos that have been viewed are often different. Is often selected and output, and the user needs to change the channel or the playback device each time, which is troublesome.

Therefore, according to the present invention, in a media player that reproduces and outputs audio data and visual data, a music or video that has been viewed earlier is automatically selected for another music or video so as not to be viewed again. The main purpose is to provide a media player that can be changed.

[0021]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention records selecting means for arbitrarily selecting audio data or visual data to be reproduced and output, and information for specifying a viewed tune or video. A viewing history memory, and a viewing history search unit for searching information recorded in the viewing history memory, wherein the viewing history search unit determines whether a song or video to be output exists in the viewing history memory when the media player reproduces and outputs. Whether or not the selection unit changes the selection of audio data or visual data to be reproduced and output when the selection unit detects that the video output by the viewing history search unit exists in the viewing history memory. Media player.

In another aspect, 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. It is a player.

In another aspect, the viewing history search unit searches the data in the viewing history memory for only data within a predetermined period, and is the media player.

According to another aspect, there is provided a viewing history erasing means for erasing old data from the viewing history memory when the number of data in the viewing history memory is equal to or more than a predetermined number or when a predetermined period has elapsed. The media player described above.

[0025] In another aspect, the viewing history memory stores the viewing histories of a plurality of players connected to the media player in common.

[0026]

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. In particular, a digital audio broadcast receiver and a CD-R or CD-RW in MP3 format are shown.
In one embodiment of an audio player having a disc player for reproducing audio data recorded on
FIG. 3 is a functional block diagram showing main functional blocks and their mutual relationship.

In this embodiment, a digital audio broadcast receiver 9 and an MP3 audio player 10 are connected to a head unit 28 for controlling the entire audio player. Machine 9
Of the MP3 audio player 10 as well as the operation of the control unit 8 of the MP3 audio player 10. In addition, if necessary, for example, a CD changer, a DVD audio player, or the like may be connected and used by a similar system.

Digital audio broadcasting [DAB (Dig
ital Audio Broadcasting)]
Includes a plurality of data fields in which audio signal data of a predetermined program is inserted by frequency multiplexing, and an information field in which correspondence between the program and the data field and various information are recorded. It receives a signal, demodulates a frequency multiplexed signal inserted into a data field corresponding to a program separately designated by a user, converts the signal into an audio signal, and outputs the signal.

In this digital audio broadcast receiver 9, a radio wave of digital audio broadcasting broadcasted on 100 or more channels is received by the antenna 1, and the received radio wave is demodulated by the digital broadcasting RF section 2 while an RF signal is demodulated. , And outputs the signal to the digital broadcast decoding unit 3, where the information data 4 and the audio data are separated from the digital audio data, and each of them is decoded.
The overlay data 4 is captured by the control unit 8, and the audio data 5 is output to the amplifier 29 of the head unit 28 via the digital-to-analog converter 6.

Data used in digital audio broadcasting is shown in FIG. 3. In the mode II frame structure shown here, one frame length is 24 ms, and
It is composed of a symbol synchronization section SYNC, a 3-symbol fast information channel section FIC (Fast Information Channel), and a 72-symbol data field section DFL.
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, time / date data, program arrangement data, service (program) name (label), and program identification code SId (Ser
vice Identification Code) and various information such as information on the song being broadcast are inserted, and a CRC (error detection code using a cyclic code) for error correction is added at the end.

The data field section DFL is divided into 72 data fields, and a broadcast signal of a predetermined program is inserted into each data field by frequency division multiplexing, so that one broadcast station broadcasts 6 to 8 programs simultaneously. I can do it. Which program corresponds to which data field is specified by the array data of the program included in the high-speed information channel unit FIC. In FIG. 3, 1.5 GH
Although the frame structure of mode II for satellite broadcasting using the z band is shown, 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.

The digital audio broadcast receiver 9 shown in FIG. 1 is provided with a channel selection section 7, in which a user's channel selection instruction directly input from an externally operable operation section 32 and a head unit 28 described later are provided. In response to a channel selection change instruction from the system controller 24, a channel selection instruction signal is output to the channel selection section 7 of the receiver so that an arbitrary channel and program can be selected.

On the other hand, the MP3 audio player 10 connected to the head unit 28 of the audio player
Shows that the CD1 as a CD-R or a CD-RW capable of recording 100 or more songs by compressing in the MP3 format is reproduced. The CD1 is applied to the player 12, rotated by the motor 13, and The music data recorded at a predetermined position can be read by the pickup 14 moving in the radial direction of the disk.

The motor 13 and the pickup 14 are controlled by a servo driver 16. The servo driver 16 receives a user's music selection instruction input directly from an external operation unit 33 and receives an instruction from a system controller 24 of a head unit 28 described later. The operation of the pickup 14 is controlled by a music selection change instruction, so that an arbitrary music can be selected.

The RF signal captured by the pickup 14 is amplified by the RF amplifier 15 and input to the MP3 system decoder 17. Here, information data 1 of an ID3 tag portion in which information such as a song name of a recorded song and an artist name as described later is recorded from data recorded in the MP3 format.
8 and audio data 19 recording an audio signal.
And decode them separately. The operation of the MP3 system decoder 17 is controlled by the control unit 21, and the decoded audio data 19 is output to the amplifier 29 of the head unit via the digital-to-analog converter 20 as in the conventional device.

In the data compressed and recorded in the MP3 format, an ID3 tag is recorded in the last 128 bytes of each song file, and the data format is configured as shown in FIG. That is, in the first three bytes of the tag portion, a character “TAG” indicating that this portion is a tag is fixedly recorded. Next 30
The byte is a TRACK NAME, that is, a part for recording a track name, and a title name as the name of the music is recorded in this part. The next 30 bytes are AIRTIS
TNAME, that is, a part for recording an artist name, and the next 30 bytes are for ALUBM NAME, that is, a part for recording an album name.

The next 4 bytes are YEAR, that is, a portion for recording the year when this song was released. The next 30 bytes are a comment, that is, a portion for recording an arbitrary comment, and free data can be recorded in this portion. Finally, it is a GENRE in which the correspondence between the number and the genre name is clarified in advance, that is, a genre number can be recorded.

In the head unit 28 shown in FIG. 1, the system controller 24 outputs a control signal to the control unit 8 for controlling the operation of the digital audio broadcast receiver 9 and controls the MP3 audio player 10 as described above. By outputting a control signal to the control unit 21,
The entire system can be operated as a single audio player. Further, an amplifier 29 is provided therein, and an audio signal from the digital-to-analog converter 6 of the digital audio broadcast receiver 9 and an MP 29
3 Digital-to-analog converter 2 of audio player 10
An audio signal from 0 can be selectively input, and any audio signal can be output from the speaker 30.

The head unit 28 further includes a viewing history memory 27. From among the information data 4 separated and decoded by the digital broadcast decoding unit 3 of the digital audio broadcast receiver 9 as described above, for example, a song name, Accordingly, the artist name is input and recorded, and at the same time, the date when this broadcast was heard, that is, the current date is recorded. Similarly, the ID3 separated in the MP3 system decoder 17 in the MP3 audio player 10
From the information data 18 in the tag, the song name,
Record the artist name and current date as necessary. Recording in these memories is performed by the viewing history recording / erasing unit 26.

As a result, in the viewing history memory 27, for example, data as shown in FIG. That is, in this example, the artist name is recorded in addition to the song name, and the viewing date when the song was listened is recorded.
In this example, a memory for recording a list of pieces of music is provided. 1 to N
o. Up to 50 have been recorded. In the list of the viewing history memory 27, the tune output from the audio player is set as the latest tune as No. No. 1 is recorded in the memory portion, and the data up to that point is sequentially moved down one by one. Fifty data are erased. In addition, when it is deemed that the year data is not necessary among the above viewing dates, it can be deleted.

The recorded contents of the viewing history memory 27 can be searched by the viewing history memory search unit 25. As described above, the digital audio broadcast receiver 9 or MP
When any one of the three audio players 10 attempts to output a new song, the system controller 24 takes in the information of the song and outputs it to the viewing history search unit 25. Is searched for a song that is the same as the song, that is, whether the song is a song recently listened to by this audio player.

As a result, by searching for the viewing date in this list, if it is detected that the tune has been listened to within an arbitrarily set date, for example, within 10 days, the digital audio When a broadcast is being received, 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 an ascending order or a descending order of the channels. When the MP3 audio player 10 is operating, the system controller 24 instructs the music selection unit 22 to reproduce another music. At this time, the music selection section 22 reproduces the next predetermined music including the case of random reproduction. When the next channel or the next song is selected as described above, if the song already exists in the viewing history memory 27 and has been listened to within a predetermined number of days, the selection of the song is changed again, and this operation is performed. repeat.

The viewing history recording / erasing section 26 searches the viewing history memory 27 for data on the viewing date, and deletes data that has passed a predetermined period, such as data that has passed for a month or more, for example. By erasing items that have little value even if they are stored in the memory here, it is possible to prevent the processing speed from lowering by performing useless searches during the viewing history search as described above.

The audio player composed of the functional blocks as described above can be sequentially processed according to, for example, an operation flow as shown in FIG. Hereinafter, description will be made with reference to the functional block diagram of FIG. In the processing of the operation by the viewing history search in the audio player, after turning on the power of the audio player (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 by the viewing history search section 25 in FIG. 1 by searching the viewing history memory 27 for the viewing date in a list such as that shown in FIG.

As a result, if a predetermined period has elapsed, for example, one month or more has been deleted (step S3). This operation is performed by the viewing history search unit 2 described above.
5 can be performed by the operation of the viewing history recording / erasing unit 26 in accordance with an instruction from the system controller 24 which has input the search result of No. 5. The normal operation of the audio player is started when there is no expired data in the viewing history memory 27 as described above, and after the expired data is deleted or at the same time as their operation. (Step S4).

Next, for example, when a digital audio broadcast is being received, a channel is selected and the MP
In the 3 audio player 10, music selection is designated (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. At the time of starting the player, a channel in which the player has been used or a tune in which music has been stored can be selected as the last mode.

Thereafter, the information data is read (step S6). This operation is performed in the digital audio broadcast receiver 9 by taking in the information data in the data frame shown in FIG. 3 in the digital broadcast decoding unit 3 and in the MP3 audio player 10 in the MPEG format. This is performed by reading, for example, information data as shown in FIG. 4 in the audio data. At this time, at least the title of the song is read, and since there are many cases where a plurality of artists play the same song title, such as classical songs and nursery rhymes, it is preferable to set so that the artist name is also read. An example is shown in which the artist name is read together with the song name.

Based on the information data read in this way, it is possible to know whether or not the tune currently being received or reproduced is a tune recently viewed by the audio player. It is determined whether the same music exists in the viewing history memory 27 (step S7). This operation is performed by the viewing history search unit 2 shown in FIG.
5 is performed.

As a result of the search, when it is determined that the same music is present in the viewing history memory 27, the channel or the music selection is changed (step S12), and the process returns to step S6 to return to the information data of the next music. And the same operation is repeated thereafter. In this determination, when it is determined that there is not the same song in the viewing history memory 27, it is determined whether or not the viewing history memory is equal to or more than a predetermined number (step S8). Here, the viewing history memory is, for example, as shown in FIG.
As shown in (a), there is a capacity of 50 songs, and the predetermined number is 5
If it is 0, it is determined that the number is equal to or more than the predetermined number when 50 pieces of music have already been recorded, and the oldest data is deleted from the viewing history memory (step S9).

In the embodiment shown in FIG. 5 (a), the items are listed in order of viewing date, so that No. 50 songs with the title "BE TOGETHER" and the artist with the name "Ami Suzuki" were viewed on July 21, 2000
This song will be erased because it is the oldest day. As a result, the capacity for inputting the information data of the new music is made. New information data is written to the memory portion corresponding to No. 1 (step S10).

In step S8, when it is determined whether or not the viewing history memory is equal to or more than the predetermined number, the number of the stored songs is, for example, not 50 in the above example. If it is determined that is not the predetermined number, it means that there is still free memory capacity,
Proceeding directly to step S10, the new information data is written to the empty memory portion. The data to be written to the memory does not necessarily need to be recorded in a list in this memory. FIG. 5 shows an example in which the operation is listed in order of viewing date so that the operation can be easily understood.

In the example of FIG. 5, when the information data of the music is stored as shown in FIG. 5A, it is still present in this list by receiving a broadcast or playing back a CD. In a state where the user is trying to listen to a new song that does not have a No., as shown in FIG. No. 1 is written in this list, and the memory is sequentially moved forward in this list, and the previously erased No. 1 No. 50 in the memory portion. 49 songs move. In the example shown in the figure, the song name is “Emotions” and the artist name is “M”.
riah Carry's song is “Year 2
August 21, 000 ”.

Next, it is determined whether or not the operation of the player is to be terminated (step S11), and when the user has temporarily stopped or terminated the audio player, the operation process is terminated (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 music has not been changed, the process returns to step S11 again, and a signal for ending the operation of the player is input to terminate the operation, or the determination operation is repeated until a new music is obtained.

Here, 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 selected in digital audio broadcasting, or when the MP3 audio player automatically changes to the next song. Channel changes at time or by user operation,
Alternatively, when the music selection is changed, the process returns to step S6, and the information data of the new music is read. Thereafter, in step S11, it is determined whether or not to terminate the operation of the player. This operation is repeated until it is determined that the operation is to be terminated.

The above operation is performed in the same manner when the operation is immediately switched to the MP3 audio player, for example, while receiving a digital audio broadcast, and vice versa. Also, as described above, this audio player is connected to the above-described digital audio broadcast receiver and the MP3 audio player. For example, a normal CD player, a CD player with a CD changer, a DVD, etc. The same operation can be performed by connecting various audio players such as an audio player.

Further, in the above embodiment, the audio player has been described. However, the same operation can be performed in a visual player handling video. In this case, for example, a digital television receiver is connected to the head unit, a DVD player, a DVD player with a DVD changer, a hard disk for recording video, and the like are connected. By recording the data of the production company or the like, it is possible to prevent a movie that has been viewed recently from being selected and viewed.

[0057]

According to 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 for specifying a viewed song or video, and recording in the viewing history memory. A viewing history search unit for searching for information, wherein the viewing history search unit searches for a song or video to be output in the viewing history memory when the media player reproduces and outputs,
The selection means may change the selection of audio data or visual data to be reproduced and output when detecting that the video output by the viewing history search unit exists in the viewing history memory. In a media player that reproduces and outputs audio data and visual data consisting of audio and video, for example, a very large number of data such as multi-channel broadcast data such as CS digital broadcast or data compressed in MPEG format. Even when a song or video is selected and played back and output, it is possible to automatically change the selection to another song or video so that the previously viewed song or video will not be viewed again Media player.

Also, the data to be reproduced and output are digital broadcast reception data, MP3 audio data, CD
Alternatively, in the media player characterized in that the data is MD or DVD recording data or Internet received data, the above-described effects can be obtained by using an audio player that selectively reproduces and outputs various audio data. In addition, the above-described effects can be obtained by using a visual player that selectively generates and outputs various video data.

[0059] The viewing history search section searches only data within a predetermined period in the data in the viewing history memory. In the media player, the most recently viewed within a predetermined period is used. There is no need to repeatedly play and output songs and videos, and appropriate songs and videos are automatically played back and output. .

[0060] Further, there is provided a viewing history erasing means for erasing old data from the viewing history memory when the number of data in the viewing history memory is equal to or more than a predetermined number or when a predetermined time has elapsed. In the case of a media player, when the data in the viewing history memory is erased when the number of data is equal to or more than a predetermined number, for example, when a large number of songs or videos are viewed even if the data is within a predetermined period. A predetermined number or more of data can be erased to be out of the search range, and an appropriate selection can be made. Further, in the case where the data in the viewing history memory is erased when a predetermined period or more has elapsed, even if the data is within a predetermined number, for example, the song or video was viewed a long time ago. Sometimes it is out of the scope of the search and an appropriate selection can be made. Further, by combining the two, a more appropriate selection can be made.

Further, in the above-mentioned media player, wherein the viewing history memory records the viewing histories of a plurality of players connected to the media player in common, the viewing history memory includes a plurality of players. For example, a song or video recently watched on a broadcast receiver is prevented from being selected and played back by the DVD player that subsequently operates, or conversely, a song or video recently viewed on a DVD player is It is possible to prevent a song or video from being received by a subsequently operated broadcast receiver 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 applied to an audio player as a media player according to the present invention, and particularly, a digital audio broadcast receiver and an MP3 audio player are connected.

FIG. 2 is an operation flowchart of the embodiment.

FIG. 3 is a data configuration diagram showing contents of data transmitted by digital audio broadcasting.

FIG. 4 is a data configuration diagram showing contents of ID3 tag data as information data of MP3 audio data.

FIG. 5 is an example of a memory list for explaining recording data of a viewing history memory according to the embodiment; FIG. 5A is an example of a viewing history memory before a change; and FIG. 5B is an example of a view history memory after a change. .

[Explanation of symbols]

 2 Digital broadcast RF section 3 Digital broadcast decode section 4 Information data 7 Channel selection section 8 Control section 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 section 22 Music selection Unit 24 system controller 25 viewing history search unit 26 viewing history recording / erasing unit 27 viewing history memory 28 head unit

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/92 H04N 5/92 E // H04B 1/16 H

Claims (5)

[Claims] 1. A selection means for arbitrarily selecting audio data or visual data to be reproduced and output; a viewing history memory for recording information for specifying a viewed song or video; and a search for information recorded in the viewing history memory. A viewing history search unit, wherein the viewing history search unit searches for a song or video to be output in a viewing history memory when a media player reproduces and outputs, and wherein the selection unit performs the viewing history search. A media player for changing the selection of audio data or visual data to be reproduced and output when it is detected that a video output by the unit exists 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, MD, or DVD recording data, or Internet reception data. . 3. 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. 4. A viewing history erasing means for erasing old data from the viewing history memory when data in the viewing history memory is equal to or more than a predetermined number or when a predetermined time has elapsed. Item 7. The media player according to Item 1. 5. The media player according to claim 1, wherein the viewing history memory commonly records viewing histories of a plurality of players connected to the media player.