WO2004029969A1

WO2004029969A1 - Method and device for recording and/or reproducing data

Info

Publication number: WO2004029969A1
Application number: PCT/DE2003/002404
Authority: WO
Inventors: Volker Becker
Original assignee: Robert Bosch Gmbh
Priority date: 2002-09-19
Filing date: 2003-07-17
Publication date: 2004-04-08
Also published as: CN1636246A; EP1543520A1; DE10243505A1; CN100583283C

Abstract

The invention relates to a method for recording and/or reproducing data and to a corresponding device. According to said method, a value is stored with each stored file, said value representing the preference of the user for said file. The value can be modified and is taken into account during the reproduction of the files from the mass storage device.

Description

Method and device for recording and / or reproducing data

State of the art

The invention relates to a method and an apparatus for recording and / or reproducing data.

From DE 199 39 320 AI a car radio is known which is connected to a large capacity memory (e.g. a few gigabytes). Audio data, in particular music data, are stored in this memory. In one embodiment, the audio data are stored in compressed form, so that a very large number of data, in particular music titles, can be stored in the memory.

This well-known example shows that data storage such as e.g. electrical storage (semiconductors), optical storage media (CD, DVD), electromagnetic storage media (e.g. hard drives, rewritable CDs or

DVD 's) more and more storage space is available, which can be further increased by means of modern compression methods. For example, the storage requirement for audio data is reduced by a factor of 10 using MP3 compression, so that audio data from around 100 standard CDs can be stored on a 6 GB hard drive. With an average of 15 music tracks per CD, this is 1500 tracks.

These modern solutions therefore mean that a great deal of information / data is stored in a single mass storage device. However, if such large amounts of data are available on a memory, the user has the problem of orientation in the database and an effective procedure when selecting preferred data for playback. This problem is particularly serious in the Vehicle in which only comparatively small displays for optical feedback can be implemented and the operator must not be distracted from traffic.

This problem arises in an analogous manner when filling the memory, since each individual title usually has to be transferred to the memory in a separate process.

Advantages of the invention

In an advantageous manner, by taking the hearing (or audio data) or

Viewing habits (in the case of video data) of the user when playing back stored data from a large amount of data, preferred data can be reproduced. Particular advantages result from the fact that the user selects personally preferred data for the playback without having to find his way around the large database with great effort.

It is particularly advantageous if a measure of the user's listening (or audio data) or viewing habits (in the case of video data) is derived from the user's actions. It is advantageous that a single operator action, e.g. the actuation of a single button, sufficient, the enormous amount of data in a meaningful

Bring access order.

In an advantageous manner, the reproduction of data is also controlled individually by several users according to the habits of each user, in that the preferred titles are determined individually for each user. In another

In one embodiment, the possibility is provided to block the adaptation of the data stock to the habits, so that a user who is not the actual owner of the data stock cannot change the access sequence during playback.

It is advantageously provided that further operator actions (e.g.

Key operation) individual titles can be selected as particularly preferred and / or as particularly uninteresting. In addition, in one embodiment, it is additionally or alternatively possible that the user can save data permanently by means of a further operator action, regardless of the degree of preference. Particular advantages result in the reproduction in that a value assigned to the data, which represents the degree of preference by the user, is evaluated, and the sequence of the data in the reproduction takes place in accordance with this value.

Advantageously, when the data is recorded, the user is spared preparatory measures due to the permanent storage, possibly also in the background. Since this solution can overflow the memory, it is advantageously ensured by adapting the order of access to the data stock to the user's hearing or viewing habits that only the data that has little or no significance for the user is deleted , In this way, the database that is being accessed is kept up to date. In this context, it is also advantageous that the user does not have to worry about which data has to make way for the new data in the event of an impending memory overflow.

It is particularly advantageous if the data is stored in compressed form in the storage medium, for example MP3-compressed.

There are particular advantages when used in a motor vehicle, for example in conjunction with a car radio and / or other audio sources, since the user is relieved of preparatory measures when recording or extensive

Measures when selecting suitable data for playback is particularly important and the user can concentrate on the traffic situation.

Further advantages result from the following description of exemplary embodiments or from the dependent patent claims.

drawing

The invention is explained below with reference to the embodiments shown in the drawing. FIG. 1 shows a device for reproducing and / or recording data in the context of an overview circuit diagram, in particular when used in a motor vehicle.

FIG. 2 uses a flow chart to show the basic procedure for

Playback of individual data, while in Figure 3 the basic procedure for

Determination of a degree of preference of individual titles is shown.

FIG. 4 uses a flow chart to show a preferred specific embodiment of the determination of this degree of preference.

Description of exemplary embodiments

FIG. 1 shows a device or device system 1 for the reproduction and / or recording of stored data, in particular stored music tracks. The preferred field of application of the device or device system is in the motor vehicle. However, the procedure described below is also used in connection with other fields of application outside the motor vehicle with the advantages mentioned. In the embodiment shown, the device or device system consists of a memory with a large storage capacity, for example of several gigabytes. Depending on the embodiment, this memory is a DVD drive or a hard disk. The memory is connected to at least one audio source 12, 13 via a data connection 11, preferably a data bus. Such

The audio source is, for example, a radio receiver (here 12), a CD player, an MP3 player, a cassette drive, etc. In the exemplary embodiment shown in FIG. 1, the at least one audio source for receiving radio signals with at least one antenna 14 and for reproducing received or stored data connected to a playback system 15 (speakers). In addition, is a

Control element (16) is provided which has at least one button and via which the at least one audio source and or the memory 10 are controlled. The control is preferably carried out via a microprocessor in the audio source and / or in the memory.

A large number of data, in particular audio information, preferably compressed, is stored in the memory 10. The user must orientate himself in this database in order to display preferred data. This is particularly the case in cars, where only comparatively small displays can be implemented for optical feedback and the operator must not be distracted from traffic

Users face problems. Therefore, in connection with the playback of the Memory stored data provided to perform the playback according to the user's listening habits. This makes it possible to identify the personal preferred data from the large amounts of data and preferably to reproduce it. The listening habits of the user are derived from the operating actions of the device, with one being preferred

Embodiment a single operator action is sufficient, for example, the actuation of a single key or in the case of a voice control, the specification of a single command in order to bring an access sequence into the data volume. The operator action mentioned is an operator action with which the user deliberately aborts the playback of the data. This suggests that the user of the reproduced file eats less importance, so that it can be classified as less preferred.

The stored data is therefore reproduced on the basis of information which represents the user's listening habits. This is called the degree of preference below. All saved files, i.e. in the preferred embodiment, all stored music tracks are automatically provided with a degree of preference. By default, the first time a title is saved, this value is the same for all titles. Depending on the operator actions, these values differ for the data in the memory. The different values form a hit list of the files in the memory which are used for playback. Depending on the version, playback is carried out at random, i.e. all saved files have the same playing probability. A second possibility is to display the value according to the degree of preference. This means that the hit list is played through from top to bottom, starting with the files with the highest level of preference. A combination of the random principle and the degree of preference is also used. This means that files with a higher preference level value are more likely to be played than others. The latter is particularly suitable for the present application. The favorite files are then played more often, but files that have not been played for a long time are also played back.

If not only audio data but also video data (or only video data) is stored, the procedure is accordingly, with the playback taking into account the viewing habits of the user. The functions described with regard to the reproduction and the adaptation of the reproduction to the listening habits of the user are implemented by means of programs on a microcomputer which, depending on the version, is arranged in one of the audio sources or in the area of the memory or in a central unit for controlling it, which performs the operating actions evaluates the user and carries out the measures derived from it.

Such a program of a microcomputer is sketched in FIG. 2 for playback using a flowchart.

The flowchart in FIG. 2 runs when the playback mode of the device is switched on. First, in the first step 100, the title selection is carried out according to one of the above-mentioned playback programs. In the preferred exemplary embodiment, this title selection takes place at random on the basis of a value representing the user's listening habits. The files (titles) stored on the memory are sorted on the basis of this value (PKT) in a list from which files to be played back at random are selected. Files with high numbers of values are weighted with a higher probability of playback. After the title selection, the selected title is reproduced in step 102 by the data being played back via the reproduction unit. It is then checked in step 104 whether the reproduced title has ended (either by aborting or by playing completely). If this is not the case, the data continues to be reproduced. If this is the case, the program is repeated with step 100 and a further title is selected. The program also ends when you exit playback mode.

The value representing the user's listening habits, the so-called degree of preference, adapts individually to the user's listening habits. In the preferred exemplary embodiment, the change in the value is derived by evaluating the operator actions during the playback of a file (title). A basic example is outlined using the flow diagram in FIG. 3.

During the title playback, a step 105 checks whether an operator action has taken place from which a decrease in the PKT value can be derived. Such an operator action is present, for example, when the

User deliberately ends the piece currently being played, for example by Pressing a key, by entering a corresponding command, etc. In this case, the value PKT is decremented in step 106. If such an action is not recognized, it is checked in step 107 whether an action has taken place which leads to an increase in the value PKT. Such an action can be assumed, for example, when the title being played has been heard completely, or when a corresponding key has been pressed or a corresponding command has been entered, which deliberately expresses the preference for the piece currently being played. In this case, the value PKT is incremented in step 108. In the event of a no answer in step 107 and after steps 106 and 108, the sketched program part is run through again, and when the title ends (also by aborting) the sketched program is only called up again during the playback of the newly selected title.

In the preferred exemplary embodiment, the value PKT (degree of preference) is carried out on the basis of the actuation of the at least one single key of the device. In the preferred embodiment, an existing standard key, for example the one that implements a SKIP function, is used. This button is pressed by the user whenever he no longer wants to hear the title currently playing, i.e. does not prefer this title at the moment. Therefore, in the preferred embodiment, the degree of preference is changed according to the following rules. The

The value is increased automatically when the played title has been completely saved from the memory. The value is automatically reduced when the user makes a jump to the next track. The change in the degree of preference takes place with every replay and with every action.

In a further exemplary embodiment, in addition to this negative influence on the degree of preference by the possibility of actuating a further key (TOP key), a positive rating of reproduced titles is provided. Since with the negative rating outlined above, it can take a long time for titles located further back in the hit list to move upwards with the TOP button for the user

Possibility to increase the degree of preference of titles by leaps and bounds. If this button is pressed during the playback of a corresponding title, the value PKT is increased by a higher amount than described above. In another embodiment, the display of the memory list and selection of the desired title by pressing the TOP button will change the degree of preference even without

Play the corresponding title. The same applies in a further exemplary embodiment with regard to the lowering of the value. Here, a so-called FLOP button is provided, the actuation of which gives the user the option of reducing the degree of preference, preferably reducing it to 0 and thus effectively deleting the title from the playback memory or even triggering a deletion action. This gives you the opportunity to quickly remove unwanted titles from playback access. Depending on the version, this action is also possible during and / or independently of the playback of the title.

Furthermore, in one embodiment, the user is given the opportunity to specifically protect certain tracks from inadvertently reaching the end of the playlist and then accidentally deleting them when the memory is completely full. In this exemplary embodiment, a further key, the archive key, is therefore provided. If this is pressed when playing a title, this causes the archive status to be assigned to this title. Titles with this status are blocked for automatic deletion in the event of an impending memory overflow and are not deleted regardless of the value of the degree of preference. In a particularly preferred manner, when titles with archive status are played back, this status is reported optically in order to give the user the possibility that when the

Archive button is no longer necessary for this title. The archive status is reset by pressing the SKIP button or the FLOP button. Depending on the version, the archive function can be used during and / or independently of the playback of the title.

It is particularly advantageous to provide a so-called locked playback mode. In this locked mode, the priority level and the archive status of the individual titles cannot be changed even when the corresponding buttons are pressed. This always makes sense if someone other than the actual owner of the database accesses the data.

If different users access the database, it makes sense to keep separate lists of preferences. When switching on, the respective user must then identify himself, for example by entering a code word, so that the respective preference list can be assigned to the database. A flowchart is outlined in FIG. 4, in which the possibilities presented above are realized. It should be noted that, depending on the exemplary embodiment, the measures described can be used individually or in any combination.

The program described in FIG. 4 also runs during the playback of a title. First, it is checked in a first step 110 whether the system is in the locked mode. If this is the case, the program is ended for the playback time of this title, since it is not possible to change the degree of preference. If the system is not in the locked mode, it is checked in step 111 whether the archive key has been pressed. If this is the case, the archive status is set in step 112. If this is not the case, it is checked in step 113 whether the SKIP key has been pressed. If this is the case, the value PKT is decremented in step 114. If the SKIP key is not actuated, a check is made in step 115 as to whether the TOP key is actuated. If this is the case, the degree of preference value is increased in step 116, preferably set in the vicinity of the maximum value. If this key is not pressed, it is checked in step 117 whether the

FLOP button is pressed. In this case, the degree of preference value is decremented in step 118, preferably set to 0. If the FLOP key is not pressed, then a check is carried out in step 119 to determine whether the title has ended. If this is the case, the degree of preference is increased in step 120. If the title is not ended, then for the duration of the playback of this title as well as after steps 112, 114, 116 and 118

Program repeated. As described above, the function described occurs when the corresponding button is pressed while the relevant title is being played. In particular, the TOP, FLOP, and / or archive key can also be operated without playing the title using the data list in the memory, for example by means of cursor control. The title selected with the cursor will then correspond to the

Key function set.

Instead of specifying keys, a corresponding command is set, for example using the keyboard or voice input.

In a preferred embodiment, the degree of preference of the individual titles is displayed during playback, e.g. as a value or as a category (TOP, FLOP, etc.).

Another aspect of the present procedure is the storage of files on the mass storage device. In one embodiment, the data is continuously stored on the mass storage device. During the entire period that the If the user calls up data from one of the audio sources, this information is stored on the mass storage device without the user having to do anything. Information about the beginning and end of the title is preferably provided by the audio sources, otherwise this information is derived automatically by interpreting NF pauses. For better memory utilization are preferred in

Embodiments compressed the data and stored in compressed form. In one version, storage is also carried out in the background (i.e. when the audio source is not active) Additional features of pieces of music, such as title and artist, are also stored and displayed in the memory list. A standard value for the degree of preference is automatically saved when a title is saved. In one embodiment, a recording mode can be switched on during which the continuous storage mentioned takes place.

If the memory is completely full, saved titles are deleted when new titles are recorded. The titles are deleted on the basis of the value for the

Degree of preference, whereby the titles with the lowest degree of preference are deleted and overwritten by newly recorded titles with the standard degree of preference value. Archives with archive status will not be deleted, even if you have a low level of preference.

In this context it is provided in one embodiment that the user can set a mode during which the user can specifically only play files that have not yet been heard. This is particularly useful for evaluating titles that have not yet been heard in the background with regard to the degree of preference.

A data source is always selected in the recording mode. The data source can then be e.g. Press the skip key or a corresponding command (no parallel processing).

The functions outlined above can also be carried out in one version during the recording. Pressing the SKIP button (or corresponding command) during recording ensures that the title is not recorded or deleted. TOP and FLOP functions increase the level of preference / delete the title during the recording. The archive status can also be assigned during the recording. If the title to be recorded already exists, it will not be saved. In a preferred embodiment, the size of the increase or decrease in the degree of preference depends on the time which has elapsed between the start of the title and the pressing of a key or input of a command. For example, if the user has listened to a piece for a relatively long time and then pressed the SKIP key (or one of the other keys or commands mentioned), the preferred degree value is reduced by a smaller amount than if the user pressed the key after a short time.

Claims

claims

1. A method for reproducing and / or recording data, in particular audio and / or video data, a recording and / or reproducing device comprising a mass storage device in which a large number of data are stored and can be reproduced via a reproduction unit, characterized in that data for playback to a user are selected, the mode of operation of the device by the user being taken into account when selecting the data for playback.

2. The method according to claim 1, characterized in that the manner of

Operation is evaluated by evaluating at least one operator action and depending on this, the selection of the data is prioritized.

3. The method according to any one of the preceding claims, characterized in that each data file is assigned a value which represents a degree of preference of the file by the user.

4. The method according to claim 3, characterized in that this value can be changed by at least one operator action by the user.

5. The method according to any one of the preceding claims, characterized in that there is a higher playback probability when a title has been played completely, a lower if the user has deliberately stopped playing the data.

6. The method according to any one of claims 3 to 5, characterized in that the value is increased when the data has been played back completely and / or that the value is decreased when the user has deliberately stopped playing a title.

7. The method according to claim 5 or 6, characterized in that by pressing a key (SKIP) or entering a corresponding command, which leads to the premature termination of the playback of the data, a reduction in the degree of preference takes place and / or that by pressing another key (FLOP) or entering a corresponding command the degree of preference is reset.

8. The method according to any one of the preceding claims, characterized in that when a key (ARCHIVE) is pressed or an appropriate command is entered, the file is provided with an archive status and can no longer be deleted.

9. The method according to any one of the preceding claims, characterized in that a strong increase in the degree of preference by pressing another key (TOP) or entering a corresponding command.

10. The method according to any one of claims 5, 6, 7 or 9, characterized in that the size of the increase or decrease in the degree of preference depends on the time that has elapsed between the start of the title and pressing a key or entering a command.

11. The method according to any one of the preceding claims, characterized in that the selection of titles for playback is carried out from a combination of a random principle and the degree of preference.

12. A method for reproducing and / or recording data, in particular audio and / or video data, a recording and / or reproducing device comprising a mass storage device in which a large number of data are stored and can be reproduced via a reproduction unit, characterized in that Data are continuously stored in the mass memory from at least one data source, the manner in which the user operates the device is taken into account when selecting the data for storage.

13. Device for recording and / or reproducing data, in particular audio and / or video data, with at least one data source and a writable mass storage device in which a large number of data are stored and can be reproduced via a playback unit, characterized in that means are provided , are selected for playback to a user, the mode of operation of the device by the user being taken into account when selecting the data for playback.

14. Device for recording and / or reproducing data, in particular audio and / or video data, with a data source and a writable mass storage device in which a large number of data are stored and can be reproduced via a playback unit, characterized in that means are provided, which continuously store data from at least one data source in the mass storage device, the data being selected when storing the data

How the device is operated by the user is taken into account.