DE4123758A1 - Playback programming system for CD player - Google Patents

Abstract

The playback programming system is used to select the tracker (17) recorded on the CD disc (1). It uses manual or machine markings (3) provided along a scanned edge gone (2) of the CD disc (1) identifying the positions along the disc (1) of the different recording tracks (17), the scanned signals fed to a data processor for evaluation with corresponding playback control. Pref. the manual or machine markings are carried by the label side of the CD disc (1) and are scanned during the rotation of the latter.

Description

The invention relates to a system for playback programming tion recorded on a recording medium contributions and / or information.

When playing music and / or video information or signals, including text information from a recorded The problem always arises of record carriers one that the user is not all on the record carrier stored recordings or information such as e.g. B. Listen to music videos, texts and other information and / or want to see, but only a limited number or just individually requested recording contributions or Information. This desire behavior usually leads to the fact that after playing a desired title Recording contributions must be skipped until the next desired title can be played.

With a playback device, e.g. B. a CD player that after inserting the CD among other things the number, track number and jump address of a single recording contribution stores, it is possible by means of a CD player train assigned operating device, e.g. B. remote control, only the retrieve desired posts. To do this, either before loading all desired track numbers at the beginning of the entire playback be entered in the desired recording contributions or after playing a recording contribution the title number of the next desired entry ben.

However, such playback programming is relative to manoeuvrable since the user has to insert a CD or active after playing each recording amount must be to make the desired title. Is A CD player will be able to play multiple CDs accordingly  The user knows how to save the desired track numbers after a certain time no longer, which desired title from a CD can be played automatically. To do this, you must first times the CD are inserted into the CD player. Before Einle A third party is not at all against the CD in the CD player able to judge which tracks when playing automatically played selectively or not played back the.

It is an object of the invention to develop a system programming of recording contributions or information to create from a record carrier which a simple and clear programming allowed.

Another object of the invention is based on previous drawing support z. B. Compact discs that have the characteristics of So far not have invention, in the invention Playback programming system to make them simple Way to retrofit.

The first task is with a playback pro system programming, which has the features of claim 1, solved. In the other claims are very advantageous Designs of individual features of the overall system described ben.

The record carrier itself has a scannable preferably an optically scannable area with at least a locally predetermined, manually markable location. The markable places or fields form a scannable code. Each digit or code value is a saved one Recorded contribution assigned to the record carrier. Record carriers that have such an area or table can not have an adhesive label or label glue can be retrofitted according to claim 6, wherein the Be rich on the label or sticker the features mentioned, as described above.  

The record carrier according to the invention is very simple program the value marking table on the record Mungträger is solid and preferably insoluble with this connected, the programming or the assignment of a position le of the area for a recording contribution or title is clear for everyone, especially on a record anyway, often bear information about the individual Record contributions are attached. In addition, the Table with the record carrier an advantageous bauli che unit, so that programming is always unmistakable Lich only for a record carrier and the corresponding the recording fees may apply.

It is expedient if the recording medium, as in Described claim 2, is formed and the area with the markable positions or fields for the user ready applied, e.g. B. is printed or glued.

The record carrier is preferably a CD or MOD, which has a scanning side and a label side, the the area in the form of the table on the label side net and each markable position has a jump address nes recording contribution of the CD or MOD is assigned. The jump address preferably represents the start address of a recording contribution Playback programming the values for unwanted recording contributions marked.

It makes sense if the area is circular Record carriers, such as a CD or MOD, as circular or Partially circular ring is formed so that the values at Rotation of the record carrier can be scanned. In addition, the scannable area should have synchronization marks for scanning and reading control of the digits.

Preferably, the markings of the locations in the Be richly erasable, so that a simple reprogramming by  can be performed. In addition, it is appropriate to the number the possible markings or places in the area of Adjust title number on the record carrier.

Furthermore, the system for playback programming of Recorded contributions marked with a record carrier draws through a method of controlling playback device with a recording device for the recording nungträger, whereby by means of the process of playing selective record contributions of a record carrier can be performed and the procedure the following ver has steps:

• a) After inserting or hanging up the record carrier in the playback device becomes the area by means of egg a reader arranged in the reproducing device direction scanned;
• b) The marked and / or unmarked areas of the area ches are detected and stored;
• c) The marked and / or unmarked job allocation neten and thus desired recording contributions who the reproduced.

The markers are preferably marked on the playback device th and / or unmarked values optically and / or acoustically displayed so that the user after whom he has the record placed in or on the playback device is constantly informed about which recordings lazily one after the other or according to a selection order are reproduced.

Is the record carrier like a CD, MOD or record? te circular, it is appropriate to use the table when rotating the record carrier. The harvest  device for the scannable area can thus be the firmest be arranged in the reproducing apparatus.

Preferably, the record carrier has during the Ab a constant rotation for the table speed up. Especially in the area of the area ches or the table in which the positions are marked the area should have equally large marking points or fields, in order to maintain the same rotational speed speed when scanning a fail-safe as possible To ensure reading of the scannable area.

The method can also be used very advantageously for controlling one designed as an automatic changer device Use playback device with a control system where in the control system the successive and / or selective Ab play a variety of record carriers, using a record carrier as above described and using a reading device in the changer or reproducing device, the reading being direction the local position of the marked and / or unmarki reads and in a memory in the changer direction. First, playing a first one Record carrier started and assigned a value th or desired recording contributions are reproduced ben. The first record carrier becomes a second Record carrier replaced when the desired On Drawing contribution from the first recording medium plays are. The process steps of starting and changing sels are repeated until all or a selection of more was recorded.

EP 02 24 465 describes a method for controlling an automatic system known changer device with a control system known that is the successive and / or selective playing of a lot Number of record carriers allows the user however once a total for all record carriers  of the recording contributions to be played. This The process is inflexible and requires considerable effort Circuit expenditure in the changer device.

A playback device according to the invention for the system for the playback programming of recording contributions from a record carrier has one of the scannable area facing reading device with which the area is covered steady. There is also a data processing unit for the evaluation of one scanned by the reading device Value of a marked and / or unmarked place and a Memory is provided for storing the sampled values.

Is in the playback device a CD player or a MOD player who uses an optical scanner to scan the Audio and / or video information from the scanning side, the is the side of the record carrier on which the to be recorded constant audio and / or video information is applied, then it makes sense to put the reader on the label the side facing the MOD or CD. That is, that the reading device preferably on the opposite side lying side of the optical scanner for scanning the Audio and / or information in CD players or MOD players is arranged.

Preferably, the marked ones after scanning and / or unmarked places the values for it or the Reference signs associated with recording contributions, such as, for. B. Record contribution number, title number, title description such as music label, artist name, location and Time of recording etc. on a display before playback direction shown.

In the following, the invention is based on a possible embodiment tion example explained in more detail in a drawing. In the Drawing represent:

Fig. 1a is a formation of a novel recording medium CD,

FIG. 1b is an alternative embodiment of the portion of FIG. 1a,

FIG. 1c is a picture of a stick-on label to a CD by the table of Fig. 1a,

Fig. 1d shows an alternative embodiment to FIG. 1c,

Fig. 2 is a circuit diagram of part of a CD - player,

3 is a program flow chart of the system for reproducing programming of recording contributions in a CD changer device;

Fig. 4 is an overall block diagram of a CD - player,

Fig. 5 is a plan view of an opened hard box (protective cover) for centering a label on the label side of a CD.

Fig. 1a shows the label side of a compact disc 1 , on which a scannable table or area 2 is arranged, in which scannable markings at local predetermined fields or locations 3 selectively and manually who can. The area forms an optically scannable code with the markings. The first ten digits one - ten are each assigned a specific track number 17 on the CD. Positions eleven to twenty are vacant. The area is printed on the label side of the CD or adheres to the CD as a special label 4 . The shape of the Be kingdom or of the label is a 1/3 circle of about 4 mm width for the mark positions with a numbering of the numbers one - twenty of the fields 3 (Figure 1a, Fig. 1c.) Assigned as the track numbers identifier in addition the positions.

Under certain circumstances, such an area or label is too wide, so that the lettering on the outer edge on the label side of the CD can be covered when the label 4 is stuck on. According to the variant according to FIG. 1b and FIG. 1d, the region only the width of marker locations on the their hand, are numbered, so that the range is made narrower than in Fig 1 a and Fig. 1c.

The outer edge of the CD is usually on the label side but not with one that is essential for the general understanding Lichen, lettering filled in, so that there the scannable Area can be easily accommodated.

The markings begin with a black and a white zone 5 and 6 , which are used to synchronize a scanning circuit 7 ( FIG. 2) in the reproducing device. This is followed by the twenty marking positions 3 , on which one can identify twenty unpopular music titles 17 by coloring or filling in the relevant position in black. The first location associated with the first track 17.1, the two-th digit of the second song, etc. To the labeling sites closes in the direction of rotation or a black synchronizers tion frame 8 a to.

If the CD has only ten music tracks, as in FIG. 1a, only the marking of tracks one to ten makes sense. It is therefore easier if the number of digits that can be marked on a CD corresponds exactly to the number of music tracks. In the case of a MOD, however, the number of digits should not be limited as much, since the number of contributions to the recording is usually still undetermined before a total MOD is recorded.

Referring to FIG. 1c, the white zone of the marker sites 3 in the area 2 has a length of 5 ° (relative to the center of the CD), which corresponds to a length of about 5 mm. For this length, there are appropriately adapted waiting loops in the evaluation circuit or evaluation program of the microprocessor system ( FIG. 2).

The most reliable function of the scanning circuit 7 was achieved with labels 4 made of white paper, the markings being done with a black marker. When marking, make sure that the contrast between the white and black areas is large enough. Under certain circumstances a special felt pen with a special infrared absorbing color is necessary. Care should be taken when applying the label as well as when marking that the label side of the CD is not damaged by scratches, plasticizers in the adhesive of the label or in the writing fluid of a marker pen.

Another possibility for producing contrast is pre gnetized slices the size of a marker. These are used to mark a spot on the area firmly attached and can be used with a magnetic scanner can be read as a reading device in the CD player.

If the table is already on the right during CD production printed reflecting material, or have the labels a metallic reflective surface is the necessary Contrast easier to achieve. Then it can be enough if the individual marking fields with a well covering, preferably quick-drying paint, who marked the. In addition, the number of check boxes in the Production to be adapted to the number of titles.

To protect against damage, it is known that CD 1 is regularly placed in a hinged hard box 51 ( FIG. 5) and locked there in a holder 57 in a defined position. The hard box is very well suited for the exact application of a label 52 according to FIG. 1c or FIG. 1d if the label is a separable part of a sheet 53 which is inserted in the left flap 54 in FIG. 5. Usually there is a booklet or information sheet with information about the CD releasably inserted between guides. Since the dimensions and dimensions of the CD are firmly defined in the hard box, a sheet in the left flap in FIG. 5, which has the label (the back of the label facing the viewer) at the appropriate points, can be very precise and easy to handle and exact arrangement of the label when closing the hard box. After folding the hard box, the label sticks to the intended position on the label side of the CD and can easily be detached from the sheet in the left flap.

Fig. 2 shows a sampling circuit 7 with a microprocessor system to sense the positions marked 3 in the area 2 from the CD 1 and to process and evaluate the sampled values.

An infrared reflective light barrier of the MRL 601 type is used as a reading device for scanning the markings in the area 3 from the CD 1 . It consists of an infrared LED 8 and a photo transistor 9 , which are integrated together in one housing. A built-in infrared filter creates a high level of ambient light so that the circuit can be checked and adjusted even when the device is open and with normal lighting. This is useful when hiring a prototype.

The light barrier MRL 601 has a very good efficiency at a distance of 5 mm above the surface to be scanned and is therefore installed at this height above the outer edge (circumference) of the CD 1 in the end position (play position) in the CD player.

The phototransistor is connected to the non-inverting input of a TAA 861 operational amplifier, which amplifies pulses from the phototransistor. For this purpose, a trim potentiometer 11 is set to the correct level and connected to the inverting input of the operational amplifier.

The setting can be easily made using a two-channel Carry out an oscilloscope with which the impulses on the collector gate of the photo transistor with those at the output of the operations compares the amplifier.  

At the photo transistor strong impulses are recognized, which arise from blackened marking points, and weak impulses, which are caused by the thin marking lines 10 between the marking fields and separate them from one another. The trimmer is now set so that the weak impulses are no longer switched through, but only the powerful impulses.

The powerful pulses are reversed by a subsequent inverter 12 , so that the bright areas in the area cause 2 po sitive pulses.

To retrofit a CD player PD- 7500 , the desired programming could be achieved with the circuit shown in Fig. 2 without problems. For this purpose, only the original connection shown in Fig. 2 top right between a control IC (not shown) and an infrared sensor 14 , which receives command signals from a remote control, had to be separated. An overall block diagram of a CD player 18 is shown in FIG. 4. The microprocessor system shown in FIG. 2 as a data processing unit is integrated in the actual processor of the CD player, which processes the scanning signals from the reading device 601 .

The processing or evaluation ( FIG. 2) of the pulses from the inverter 12 and the further control is carried out by the microprocessor system shown in FIG. 2, the heart of which is a processor Z-80 CPU. The entire circuit (except EPROM 2764 ) is completely built in CMOS technology. The power consumption is so low that the supply voltage can be taken directly from the CD player.

The CD player becomes two more pieces of information related: On an IC (not shown) that is suitable for the movement the slide on which the CD is inserted into the Ge advises to move in, a pulse is tapped, from the Mi  croprocessor receives a RESET signal. Likewise, the Mi croprocessor a RESET signal when the CD player is turned on is switched. The sampling circuit therefore starts automatically to work as soon as the CD player is switched on or when a new CD is pulled through the carriage.

On another IC that operates the motor that runs the CD ro animals can be tapped pulses that accelerate display of the engine. If these impulses fail to appear, that is this is a sign that the CD is at a constant Speed turns. Only then will the markings of the the positions of the area evaluated. This is about to happen at the beginning when the CD player is fed or inserted te CD analyzed and among other things the number of tracks and game duration notes. For this, a fixed, unchangeable Da tenverzeichnis - called TOC (Table Of Content) - and die UTOC (User Table Of Content) of the CD read.

After analyzing the markings, the information must be passed on to the CD player. This is done by the microprocessor Z-80 simulating the corresponding control pulses from an infrared remote control. Therefore, the original connection between the infrared sensor 14 and the CD control IC is broken. Before this, the microprocessor switches off the infrared sensor of the CD player so that this simulation cannot be disturbed by a remote control. This water condition is made clear on the front of the device by the lighting of a light emitting diode 13 .

First, the processor Z-80 sends the signal for "programming", then the numbers of the unmarked tracks and then the signal for "play" to start the music playback. Finally, the infrared transmitter is switched on again, followed by the LED 13 goes out. Then the programming system shown changes to the halt state, which it can only leave by a new RESET signal. You can start playing the desired tracks. Incidentally, this stop status is immediately taken when the system has determined in the absence of the black synchronization zone that the CD has no scannable area 2 or no markings in places 3 .

The CD player now shows either the marked or unmarked track numbers on a display. Since the marked positions are assigned to the undesired titles as agreed, it makes sense to display the title numbers that are also reproduced, ie the numbers of the positions that are not marked with the exception of positions eleven - twenty. The CD player now starts to play back the titles that have been unmarked in order. If, for example, fields 1 , 2 , 5 , 6 , 7 , 9 and 10 are ticked as in FIG. 1a, the music pieces 3 , 4 and 8 are automatically reproduced. After the CD has been inserted into the CD player, the third track is played automatically and without delay. Similarly, the jump in time from track three to track eight is roughly the same as the jump from track three to four. The delay times when jumping from title four to eight are therefore very short.

The overall block diagram of a CD player 18 shown in FIG. 4 shows the reading device 601 facing the label side of the CD 1 and the scanning laser 41 facing the scanning side of the CD 1 in the CD recording device 19 in the CD player. The reader 601 is controlled by a processor and the marked or unmarked values are read into a dynamic memory (RAM).

Fig. 3 shows a flowchart of a CD player designed as a CD changer device. The changer device has a receiving device designed as a receiving compartment for a number n CD. In such changer devices, a control system permits the successive and / or selective playback of the recording media located in the receiving compartment.

First, a first CD is sled into the Ab position pulled. As described above, the Scanned area from the label side and that from the user selected songs are described as above as given. The first CD is being recorded against a second CD that has already been stored is replaced if the CD marked or recording contributions assigned to unmarked positions played from the first CD. These procedural steps of moving in, reading, playing and changing again until all or a selection of the ones in the multiple CD was played.

Claims (14)

1. System for playback programming of on a record carrier ( 1 ) stored Record contributions ( 17 ), characterized in that the record carrier ( 1 ) has a scannable area ( 2 ) with at least one locally predetermined, manually markable location ( 3 ) and the predetermined location is assigned a specific recording contribution ( 17 ) on the recording medium ( 1 ), that a read device ( 601 ) for scanning the area ( 2 ) and a data processing circuit (Z- 80 ) for evaluating the sampled values of the Area is provided. 2. Recording medium for a system for playback programming of recording contributions ( 17 ) stored on a recording medium ( 1 ), characterized in that the recording medium ( 1 ) has a scannable area ( 2 ) with at least one locally predetermined, manually markable location ( 3 ). has and the predetermined position a certain recording contribution ( 17 ) on the recording medium ( 1 ) is assigned. 3. Record carrier according to claim 1 and / or 2, characterized in that the record carrier is an optically scannable record carrier, preferably a compact disk (CD) or magneto-optical disk (MOD), which has a label side and a scanning side, that the area ( 2 ) is arranged on the label side of the record carrier, and that each record contribution is assigned a jump address on the record carrier. 4. Record carrier according to claim 3, characterized in that the area ( 2 ) is designed as a circular or part-circular ring and preferably on the outer edge of the circular record carrier ( 1 ) is angeord net ( Fig. 1a), and / or that the area has at least one location ( 5 , 6 , 8 a) for synchronizing the scanning. 5. Record carrier according to one of the preceding claims, characterized in that the markings can be deleted at the predetermined locations and / or the number of markable locations ( 3 ) in the area ( 2 ) of the number of recording contributions ( 17 ) on the record carrier ( 1 ) corresponds and / or each markable position has an identifier. 6. label ( 4 , 52 ) or sticker for incorporating an area-free, rotating record carrier with egg ner label side, z. B. compact disc (CD) or magneto-op tables disc (MOD), in the system according to claim 1, wherein the label on the label side of the record carrier ( 1 ) is attachable and a scannable area ( 2 ) with at least one locally predetermined, manually markable location ( 3 ) and a predetermined location is assigned a specific recording contribution ( 17 ) on the recording medium. 7. A method for controlling a playback device ( 18 ) with a recording device ( 19 ) for a record carrier ( 1 ) according to one of claims 1-6, characterized by the following method steps:

• a) After inserting or hanging up a recording medium ( 1 ) according to one of claims 2-6 in or on the receiving device ( 19 ) of the playback device ( 18 ), the area ( 2 ) is scanned by means of a reading device ( 601 ).
• b) The marked and / or unmarked points ( 3 ) of the area ( 2 ) are detected and stored.
• c) The recording contributions ( 17 ) assigned to the marked or unmarked positions ( 3 ) are reproduced.

8. The method according to claim 7, characterized in that on the reproducing device ( 18 ) a value for the marked and / or unmarked location ( 3 ) and / or one of the marked and / or unmarked location associated identifier of a recording contribution ( 17 ) e.g. B. title number is displayed optically and / or acoustically. 9. The method according to claim 7 and / or 8, characterized in that the recording medium ( 1 ) is circular and the area ( 2 ) is scanned when the recording medium rotates. 10. The method according to claim 9, characterized in that the recording medium ( 1 ) has a constant speed during the scanning process of the area ( 2 ). 11. The method according to any one of claims 9 and / or 10, characterized in that with a CD or MOD the loading area ( 2 ) is scanned, while a further reading device ( 41 ) in the playback device has a fixed, unchangeable data directory (table Of Content (TOC)) and / or variable table of contents (User-Table-Of Content (UTOC)) from the scanning side and determines, among other things, the number of titles and playing time of the recording medium. 12. The method according to any one of claims 7-11 for controlling a playback device ( 18 ) designed as an automatic changer device with a control system that enables the successive and / or selective playback of a number n of record carriers ( 1 ) using a record carrier after one of claims 2-5 and using a read device ( 601 ) in the playback device which reads the local position of the manually markable, locally predetermined locations ( 3 ) and reads into a memory ( 2764 , 6116 ) in the changer device , characterized by the following process steps:
the playback of a first recording medium ( 1 ) is started and the recording contribution ( 17 ) assigned to a marked or unmarked location ( 3 ) is played,
the first recording medium is exchanged for a second recording medium when the recording contributions assigned to the marked or unmarked locations have been played by the first recording medium,
and the process steps of starting and changing are repeated until all n or a selection n - m of record carriers has been played back. 13. A playback device for a system for playback programming according to one of the preceding claims, characterized in that the playback device has an area ( 2 ) facing reading device ( 601 ) for scanning the area ( 2 ), a data processing circuit for evaluating one of the Reading device sampled value of a marked and / or unmarked location ( 3 ) and a memory ( 2764 , 6116 ) for storing sampled values. 14. Playback device according to claim 13, characterized in that the playback device is a CD player or MOD player, which has an optical scanner ( 41 ) for scanning the audio and / or video information from the scanning side of the recording medium ( 1 ) and in which the reading device ( 601 ) is arranged on the side facing the label of the record carrier ( 1 ) arranged in the playback device.