CN85102124B - Device for recurring data from information carrier - Google Patents
Device for recurring data from information carrier Download PDFInfo
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- CN85102124B CN85102124B CN85102124A CN85102124A CN85102124B CN 85102124 B CN85102124 B CN 85102124B CN 85102124 A CN85102124 A CN 85102124A CN 85102124 A CN85102124 A CN 85102124A CN 85102124 B CN85102124 B CN 85102124B
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Abstract
The present invention relates to a small digital audio disk player, wherein a user can selectively store some desired programmes selected from a plurality of programmes on a disk to a storing device. The player can distinguish the disk from subcodes on the disk, the corresponding desired programmes are read out from the storing device, and thereby, the desired programmes are played.
Description
The present invention relates to one is used for from the equipment of record carrier reproduction information.This equipment includes the readout device that is used to read this record carrier, and the control device that is used to control this readout device, makes this equipment can reappear partial information through selecting.
An example of this equipment is exactly a kind of small digital audio record multicasting player.Its record carrier is a kind of optical readable disc.On this disc, include the information that the form with the numerical coding audio-frequency information exists.Such a small digital audio record multicasting player, when for example the application proposes, with the CD304 type name trade mark, the sort of record player that just can buy from the N.V.Philips'Gloeilampenfabrieken there.This player included several before playing, and can select the key of the part that will play.For this reason, used the subcode that is included in the digitized audio message, and it includes operation indication (track number), the index (track part) of the music stroke that has been reappeared and relatively and the absolute time.Various known phonographs all are useful on programming track number, index, or the time, or the device of the combination of these parameters.In the duration of a playback period, can select its keyboard input, be stored in the memory.
The objective of the invention is to improve the simplification of the operation of this equipment, and can make the understanding of the fact of same selection based on the user usually among the specific disc.
Feature of the present invention is to be used for before playing, distinguish the condition discriminating apparatus of record carrier, be used to store the identification mark of many record carriers and the storing apparatus of corresponding glad selection of selecting for use, be used for detecting the device that whether the identification mark of record carrier is stored in storing apparatus, if and the identification mark that includes the record carrier that an identification mark will play corresponding to desire with storing apparatus, so just can set the device of control device according to this mode that is stored in the glad selection broadcast of selecting for use in the storing apparatus.
According to equipment of the present invention, can automatically play glad selection of selecting for use in the disc that chooses by the user, and these select data to be stored among the storing apparatus.
The present invention is not limited to small digital audio record multicasting player.For example, also the present invention can be used with the digital light register in conjunction with Videodisc's player and digital magnetic recorder.
About being used to reappear equipment according to the digitized audio message of small-sized disc DAB standard code, distinguish the aspect with regard to it, further aspect of the present invention can be described as this condition discriminating apparatus and receives the subcode of distinguishing the record carrier that its desire will be play.
Therefore, can be catalog number (Cat.No.), perhaps writer mark, perhaps title mark is used among being included in subcode.Because this data up to the present occurring can not come out by standard code; Therefore, many related datas can not appear on all discs; So such scheme is unsafty.The feature of a gratifying scheme is that this condition discriminating apparatus can be selected predetermined hyte by the record carrier index among being included in subcode, just can distinguish the record carrier that desire will be play.
This has just provided a unique identification that comes down to the record carrier that will play desire.
If include a control panel that can allow the user make one's options in order to set control device according to equipment of the present invention, this equipment can also have further feature so, and Here it is is used for optionally will working as and has loaded identification mark of being found after the record carrier and the writing station that writes storing apparatus with the selection that control panel is made as a kind of glad selection of selecting for use.
In order effectively to use existing memory capacity, this equipment can also further have following feature, Here it is, this writing station is suitable for the code of expression identification mark and the code combination of the glad selection of selecting for use of expression, in storing apparatus, form data block, readout device then is suitable for continuously reading this data block, is consistent so that detect the identification mark identification mark interior with being stored in storing apparatus of the record carrier whether desire will be play.
Further, the feature of optimum implementation of the present invention is, this writing station is suitable for a serial number and indicates the code of the position of next data block to be added to this data block and get on, and readout device is suitable for function as the storage length of the data block of being read to determine the address of next data block.
In addition, if this optimum implementation includes the device of the serial number that can show the corresponding data block of record carrier that will play with desire or in progress, this also is its advantage so.
Use a serial number, except the identification of this serial number and showing, can also allow the user keep a record of the selection that he is happy to select for use, for example use the shell of this this record carrier of serial number mark in simple mode; Really, this serial number is much simple than very complicated usually discriminating really.
Now, we use following accompanying drawing, and the present invention is described in more detail.Wherein:
Fig. 1 schematically illustrates embodiment of the present invention;
Fig. 2 and Fig. 3 are the diagrams of explaining how embodiment shown in Figure 1 operates; And
Fig. 4 is a process flow diagram of explaining that used microcomputer 3 is programmed in the embodiment shown in Figure 1.
Fig. 1 explanation is with regard to the block scheme of the relevant a kind of small-sized record player of the present invention.This explanation is based on that the known small-sized record player that can buy makes on market, such as, be this player that can buy from N.V.Philips'Gloeilampenfabriken with the CD304 model name trade mark.These known players include a program-selection control panel 1, such as, one row each all corresponding to the key of a particular track number, and display 2 that shows selected selection, for example a row each all corresponding to the lamp of a particular track number.Just not saying the temporary possibility that selection is programmed to track number, by means of (track part) time of the transposition in a track number, perhaps absolute time also may be made this selection.Microcomputer 3 scan control panels 1, and driving display 2.In addition, microcomputer 3 can be stored in the program that generates in the memory under program 4 and select, and also can select this program to read out from this memory under program 4, thereby to reappear the mode of the option that desire will be play on disc, control this player.For this reason, receive the subcode of output from a sub-decoder 5 as the microcomputer 3 of condition discriminating apparatus.These subcodes are contained in being among the music data on the disc, and are a kind of operation codes of representing track number, index and time especially; Therefore, this microcomputer receives the locating information on disc about reappearing.
According to the present invention, this player has to be selected the glad program of selecting for use in many discs to be stored in the memory and recognizes the next possibility of disc that desire will be play; If desired, also may allow it play the glad program of selecting for use selects.For this purpose, will be as condition discriminating apparatus and the microcomputer 3 of usefulness is done program design, from the subcode of supplying with by decoding scheme 5, obtain a disc and distinguish code ID, it is stored in the preferred memory 6.For example, this distinguishes that code can be the catalog number (Cat.No.) that includes in this subcode, or the composer, the singer, and the indication of title or the like, but at least to so far, among these subcodes of all discs, do not contain this data.Therefore, from appearing among the data on each disc, drawing and distinguish code ID, is the superior part of this equipment.A kind of possibility is the concordance list on appearing at each disc, to select specific hyte.This concordance list is exactly the sort of table that schematically illustrates among Fig. 2.This concordance list is made up of the serial data of representing with hexadecimal notation among Fig. 2 with 4 bytes (4 * 8) group form.First byte representation track number of each gulp, second, after that disc that the 3rd and the 4th byte representation begin on the track of first byte indication brings into operation, with the time of minute (second byte), second (the 3rd byte) and frame (the 4th byte) expression; One frame equaled for 1/75 second.The index of all these track number is followed after three 4-syllabified code data blocks.Its first gulp is respectively A0, A1 and A2.Number number of first track of second byte representation on the disc that desire will be play that the data block of start byte A0 is arranged; It is 1 that this number number not necessarily needs, because can specify a continuous serial number to many discs.The 3rd of this gulp and the 4th byte are 00.The gulp that start byte A1 is arranged is represented number number of the last track in its second byte in a similar fashion; And the 3rd and the 4th byte are 00.The gulp that start byte A2 is arranged, expression begins to enter the lead-out groove track from disc, uses second respectively, the 3rd and the 4th byte indicate its with minute, time of representing of second and frame number.
The number of minutes of this first track number and second number, be not arbitrarily.Usually its frame (the 4th byte) number more or less is arbitrarily, and is to select its as first byte of distinguishing code ID of this disc.The number and frame number in second of this second track, all can be considered to more or less is arbitrarily, therefore, select these two bytes to distinguish second and the 3rd byte of code ID as its disc, such as if this disc only contains a track, then these two bytes are exactly 00.Can be second of the gulp that start byte A1 is arranged hexadecimal half second byte, be combined into second hexadecimal half second byte of last gulp, constitute the 4th byte that it distinguishes code ID.By means of indication from its begin to enter disc lead-out groove track second number and the last gulp of frame number in latter two byte, constitute the 5th byte and the 6th byte that this distinguishes code.In Fig. 2, selected byte is enclosed, and be combined into selected numeric example and constitute hexadecimal code 32-15-12-72-48-41 together.In fact, can distinguish that code thinks a unique code to the disc that this end product draws.In this respect, be noted that among the information that can will reappear from desire, draw one and distinguish code, but be not from the subcode that may not necessarily occur, to draw its.
Distinguishing code ID with reference to the illustrated disc of Fig. 2, is from suitably programming by means of microcomputer 3, drawing among the subcode by decoding scheme 5 supplies.With glad selection of selecting for use, this is distinguished that code is stored in the memory 6 by microcomputer 3 as writing station.After the power supply of this player is turned off, also should be kept at this information in the memory 6, for example by battery powered RAM memory, the perhaps way of some non-volatile memories.Under first kind of situation, desired memory capacity influences its price hardly; Therefore, it is possible fully selecting a kind of organizational form; So a specific memory capacity is left for number number that is used for each disc and selects (this is a specified serial number number of a disc to will the most glad selection of selecting for use storing), and its memory capacity should be enough big, so that the maximum number number of track is selected in storage.With regard to its nonvolatile memory, memory capacity remains the factor that must consider.In order to make the glad selection of selecting for use of these disc maximum numbers, all got up by storage, the structure of this memory does not preferably leave too much memory capacity so.Thereupon, with all selections of making, follow a ground for one, directly storage is got up.So, this memory is done random access, be possible thing no longer just; Because the various codes of distinguishing no longer have been stored on the fixing address.Fill this memory in rapid succession; Each data block is specified a code; This code is indicated the length of this data block, and makes it possible to calculate each in succession and the address of the data block of coming.Fig. 3 represents the example of a such data block.The first six of this data block byte composition is distinguished code ID; The indication of the location L that back to back next byte is next data block; This indication in the present example, is to realize by the length of indicating this data block; Back to back byte indicates according to the selection of being made by the user and sets, and among the selection of these discs, the serial number of its relevant disc is counted DN.This serial number makes for the user just to become than being easier in order to keep one " record "; For example, use the shell of this disc of serial number mark.At last, this data block includes some byte MFT of the variable byte number that an expression makes one's options by the user.Owing to can make one's options with different modes, therefore, can require to allow some positions, indicate the type (track number, index or time) of addressing and some and close.In other words, can get up the type combination of various addressing.This example is:
The addressing of-track number.This addressing requires each selection that a byte will be arranged.
-in specific sound location, do indexed addressing.This addressing needs each selection that two bytes will be arranged, and promptly a byte is used for track number, and another byte is used to the index that indexes.
-time in selected track needs 5 bytes, promptly byte be used for track number, two bytes be used for zero-time (minute; Second), also have two bytes to be used for the termination time,
-absolute time is selected, and needs 4 bytes, and promptly two bytes are used for zero-time, and two bytes are used for the termination time.
In order to indicate the final data block that is stored in the preferred memory 6, the next byte after this final data block is encoded with a mode that pre-determines, for example encode with hexadecimal notation with FF.If the memory capacity of this memory allows this point, so just can on this unit, next new data block be stored.
If for example by the program on the disc that was once done to select in the past, wipe a data block, perhaps elect again and cancel the words of a data block, and by before the occupied memory cell of selection within, this new selection can not be held often, can point out this point by filling unit so for that ID code.It is invalid that the numeral of this ID code indicates this data block, and must jump the position.When this memory is filled, by information is shifted, can reuse the data block that these have been cancelled.Why doing like this, is because in some nonvolatile memories of specific model, wipes and writes the life-span that all can shorten it, and need long time comparatively speaking.If there is no these defectives just can be filled the data block that this has been cancelled immediately by the displacement of next data block so.To the replacement that the data block of having cancelled enters once more, be on the location of original selection, enter new selection, if store regional insufficient words, so just store a directive of pointing out to store the unit that all the other information are arranged.
When stopping at it selecting to enter once more constantly, then or can keep original serial number, perhaps can select next serial number.
In this illustrated example, be the situation of the original serial number of maintenance.
About control and demonstration,, can make some special devices for keyboard input selection with in order to show this selection; But being to use keyboard 1 and display 2, but is an advantage of the present invention.
In addition, can provide some following functions (in Fig. 1, having done schematic explanation):
-when the serial number of this data block is also imported by keyboard, can make the certain data block in preferred memory invalid with erase key 7.
-full erase key 8 is used under situation about need be adapted by the user, and preferred memory clears all.Because the careless and inadvertent program that its program is selected eliminates, must protect this key 8 in order to prevent, if but for such elimination, make several operations, be to obtain program that this program selects again.
-observe key 9 can allow the user arrange by showing with the numerical order of serial number, according to specific rhythm,, check the full content of this preferred memory with the just in time corresponding serial number of corresponding program.
-can between the storage of the reproduction of the glad selection program of selecting for use and the glad selection program of selecting for use, select with FTS key 10 users.
-memory key 11 can be done the keyboard input to the selection of having done by keyboard 1.The selection of input is stored in the preferred memory by the microcomputer 3 as writing station.
When 12 indications of-pilot lamp have filled preferred memory full (perhaps select as another kind of, can make another display flicker), and
-display 13 shows the serial number through the disc of identification, perhaps the disc that will be stored number.
Fig. 4 is in the optimum implementation of the present invention, the process flow diagram of microcomputer 3 program designs.
Have two approach may be separated from this ring of 18-19-20-21-27-28 among this: or be in this memory, not contain its specific disc identification code, in this case, this ring is out of gear mesh by square frame 19; Stored this disc identification code, in this case, then in square frame 21, will obtain an affirmative reply problem ID=IM, and out of gear mesh.Subsequently, have the mark of serial number DM as the disc that will play of explanation desire, and if wish reprogramming as an explanation user, then be possible mark; To be presented at the serial number DN that finds in the square frame 20 by means of display 13.Then, in square frame 22, keep a stand-by period; Simultaneously, inquiry memory key and keyboard 1 just can allow the user make reprogramming.And then, in square frame 23, determine whether realized reprogramming.If reprogramming took place, so just on the A of address, an invalid code is entered square frame 29, as a relevant glad selection of selecting for use of mark indication, become invalid having used.And then, in square frame 30, with parameter X and set 1 Q-character F(F :=1), the serial number of this disc is stored, and then, this program is in square frame 27, turning back to search ring 18-19-20-21-27-28 gets on, after last glad selection of selecting for use,, break away from this search ring again through square frame 19.If in square frame 23, detect the reprogramming that do not come out, then this program enters square frame 24.Wherein on the address of 8 bytes after the A of address, will from memory 6, read out corresponding to the glad selection MFT that selects for use of the disc of this loading.Then, again this glad being chosen in of selecting for use of reading is deposited in program memory 4 in the square frame 25.Then, in square frame 26, finish this program, and the program program in memory 4 shows by display 2.This program can obtain by reading its preferred memory 6, perhaps by there not being the preferential programming of selecting (output " N " in square frame 16) to obtain.
If the distinguishing code ID and be stored in all inconsistent words of any one disc number in the preferred memory of the disc that desire will be play, if perhaps made reprogramming, square frame 19 is through output " Y " so, enter square frame 31 and spin off, testing its Q-character F at this is 1(F=1).If not top situation, i.e. F ≠ 1, the number of distinguishing of Here it is this disc never is stored in the memory, and its FTS key 20 be driven always-be exactly that this disc desire will have been stored and is used as glad selection of selecting for use., in square frame 32, keep a stand-by period for this reason, simultaneously, keyboard scan and memory key 11, thus user's keyboard loading routine can be allowed, and, the disc that show is specified a serial number by display 13.Therefore, in square frame 32, the last serial number of reading (seeing square frame 20) is increased by 1.After this, in square frame 34, determine whether to realize programming; If do not realize, then should directly enter square frame 26.
If the F=1 of test in square frame 31, discovery is real words (output Y), and this disc is exactly its glad those selections of selecting for use so, has made the sort of disc (in square frame 22) of reprogramming.According to square frame 351, its serial number DN is exactly the value that is stored in the square frame 30, just in memory, and on its original unit, the value of this serial number; After this, this program output Y of entering into square frame 34 gets on.On this aspect in this program, the address in its preferred memory 6 is the next address after its last glad selection data block of selecting for use; And, the value of the serial number DN that desire will be stored, disc distinguish that code and the glad selection program MFT that selects for use are known.For this storage, in square frame 35, determine the length of its new data block, and will judge in square frame 36 whether this memory capacity remains enough to this data block.If its memory capacity remains enough, this program just enters into square frame 39 so, in order to store IM in its preferred memory 6, the value of DN and MFT; Then and then, this program enters into square frame 26, so that the glad playing programs of selecting for use that realization is pointed out with keyboard 1 is perhaps taken away this disc, perhaps is implemented in the broadcast of another program that should not deposit in this preferred memory.If it is not enough that square frame 36 is pointed out this memory capacity, this memory will be shifted the data block of those glad selections of selecting for use by rewriteeing the way of those invalid data blocks (seeing square frame 29) so, in square frame 37, does reorganization again.After this, in square frame 38, check that again its memory capacity is enough.If memory is full, memory capacity remains insufficient words, then gives pilot lamp 12 power supplies, and shinny; And if another situation, memory capacity is enough, and then this program enters into square frame 39, thus the program that continuation had just been described downwards.
Claims (15)
1, a kind of in order to reappear the equipment of the information of representing by the information signal that is recorded on the record carrier, this equipment comprises one in order to read the readout device of described information signal from described record carrier, one in order to select to reappear the control device that this mode is partly controlled readout device of selecting of information according to the glad program of selecting for use, with a pick-up unit, it is characterized in that this equipment also comprises: in order to before reality reproduction from reading to extract a unique condition discriminating apparatus of distinguishing code from the information signal that writes down carrier; The storing apparatus of selecting in order to the glad program of selecting for use of distinguishing code and its correspondence that stores a plurality of record carriers; Said pick-up unit is whether the code of distinguishing of detection record carrier has been stored in the pick-up unit in the storing apparatus; And if in order to the device of setting control device by this way promptly storing apparatus contain extraction distinguish code the time, information is according to selecting reproduction with the corresponding glad program of selecting for use of code of distinguishing that extracts.
2, equipment according to claim 1 by the audio-frequency information of representing according to the information signal of " small-sized disc DAB " standard code, is characterized in that condition discriminating apparatus is suitable for distinguishing code from the subcode extraction in order to reproduction.
3, equipment according to claim 2 is characterized in that predetermined hyte that condition discriminating apparatus is suitable for always self-contained record carrier index in subcode is extracted to distinguish code.
4, according to claim 1,2 or 3 described equipment, the control panel of selecting in order to the glad program of selecting for use of manual control input is housed, it is characterized in that loading and the program that will be happy to select for use optionally writes the writing station of distinguishing code of extraction after selecting manual input to advance storing apparatus at record carrier.
5, equipment according to claim 4, it is characterized in that writing station be suitable for will the expression discernable marks code and the code combination of the glad selection of selecting for use of the expression all data blocks in the storing apparatus in, pick-up unit is suitable for reading described data block continuously so that detect distinguishing whether code corresponds to be stored in and distinguishing one of code in the storing apparatus of record carrier that desire will play.
6, equipment according to claim 5, it is characterized in that writing station is suitable for the code of position of a serial number number and the next data block of indication is added in all data blocks, and pick-up unit is suitable for function as the storage length of the data block of reading is determined in the address of next data block.
7, equipment according to claim 6 is characterized in that this equipment comprises in order to show corresponding to desire will play or the device of the serial number number of the data block of in progress record carrier.
8, according to the method for operating of the equipment of claim 1:
The distinguish code and the preferred program thereof of a plurality of record carriers are selected to deposit preferred memory in by keyboard and writing station;
When a new record carrier is prepared to play, this record carrier is put in the equipment;
It is characterized in that:
Before reality reproduction (for example, the sound reproduction) beginning, distinguish code from including a part of information signal extraction of distinguishing code by condition discriminating apparatus;
After code was distinguished in extraction, whether the code of distinguishing of pick-up unit Detection and Extraction was stored;
If distinguishing code is not what to have stored in memory, information will be with normal played in order;
If but distinguished that code is what to have stored in memory, information will be with the order reproduction of being selected by the glad program of selecting for use to determine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85102124A CN85102124B (en) | 1985-04-01 | 1985-04-01 | Device for recurring data from information carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85102124A CN85102124B (en) | 1985-04-01 | 1985-04-01 | Device for recurring data from information carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85102124A CN85102124A (en) | 1987-01-24 |
| CN85102124B true CN85102124B (en) | 1988-06-15 |
Family
ID=4792278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85102124A Expired CN85102124B (en) | 1985-04-01 | 1985-04-01 | Device for recurring data from information carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85102124B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038004C (en) * | 1993-08-25 | 1998-04-08 | 刘清浩 | Quick-acting magnetic tape for tape recorders |
-
1985
- 1985-04-01 CN CN85102124A patent/CN85102124B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85102124A (en) | 1987-01-24 |
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Free format text: CORRECT: PATENTEE; FROM: N.V. PHILIPS OPTICAL LAMP MANUFACTURING COMPANY TO: N.V. PHILIPS OPTICALLAMP LTD., CO. |
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Patentee after: Philips Electronics N. V. Patentee before: N.V. Philips' Gloeipenfabrieken |
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Free format text: CORRECT: PATENTEE; FROM: N.V. PHILIPS OPTICAL LAMP LTD., CO. TO: ROYAL PHILIPS ELECTRONICS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: Koninklike Philips Electronics N. V. Patentee before: Philips Electronics N. V. |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |