JPS6177182A - Multidisk automatic reproducing device - Google Patents

Abstract

PURPOSE:To simplify an input operation of a retrieval data and to avoid a limit of the number of disks stored by optically reading and inputting the retrieval data displayed correspondingly to each of a number of disks. CONSTITUTION:As an optical retrieval data display medium 31 a book type one 31a or a card type one 31b on which bar code groups are printed inherent to respective disks as an optically readable retrieval data is used. Light is projected by an optical reading element 32 of an optical retrieval data input section 30 and a reflected light is read as an optical signal and inputted to an optical information input circuit 33 to convert into an electrical digital signal. A control circuit 34 has a recognition section 35, a judgement section 36 and an instruction section 37, and a disk selection section 26 to which a control signal is supplied from the control circuit 34 selects an object disk and moves the disk to a turntable 21 of a reproducing section 27.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a multi-disc automatic playback device, and more particularly to improvements in its search data input section.

[Technical aspects of the invention and one caveat] Conventionally, a multi-disc automatic playback device known as a so-called Jukezax has adopted a configuration as shown in FIG.

That is, it is roughly divided into four parts: an input circuit 11 into which search data for music selection is input, and an input circuit 11 that recognizes and judges the search data from this input circuit 11 to generate a command signal for music selection. In order to do so, the recognition unit 12
, a control circuit 15 such as a microcomputer consisting of a judgment section 13 and an instruction section 14, a pile mechanism section 16 for selecting a desired disk from among a large number of disks 18 in accordance with the above command signal, and a disk drive mechanism section 16. A disc selection section 26 as a so-called autochanger consisting of a selection arm 17 and a disc position sensor 19, 20 reproduces the recorded signal of the selected disc 18, converts it into an electrical signal, and amplifies it to generate a sound output. Disk drive unit 21, pickup 22, head amplifier 2 for generating
3, a playback section 27 consisting of a control and main amplifier 24 and a speaker 25.

Of these, a key switch circuit is often used as the input circuit 11, and a numeric key (10 key) system or a 4-key system in which one key corresponds to one disc is adopted.

Traditional multi like this! +j+ of the isk movement playback device
The iJ production starts by inputting the basic data in the form of a 1be song and a 1delta order to the input circuit 1zf from the outside. Then, the control circuit 15, to which the data from the input circuit 11 is supplied, recognizes and judges this one-yellow data, and the disk selection unit 26
The command to activate the command outputs a number.

1.r! ;Figure 4 is the above i! ill (a11 circuit I5) shows a flowchart when all the microcomputer are used. In step ①, it is determined in loop (a) whether there is a key power in the input circuit 1), and if there is a key power. If so, proceed to the next step ■. By the way, this one
In case (), disc selection requires common data with multiple broken bits (for 17i, multiple numbers of disc numbers, etc.), so in Stella f■, the input data is stored in the input reno star and the next step is performed. At @, the loop (b) determines whether all necessary data has been input, and enters a standby state until all data is received. Then, when all the necessary data is collected, in the next step ■, it is determined whether the human data is valid or invalid for f"4 screen J:l!! selection, and only if it is valid, proceed to the next step ■. move on.

In step ■, it is determined whether the disc corresponding to the input data is currently being played (played) or not. If it is being played, the step waits for its turn, and if it is not being played, it is immediately returned to the next Stella fΦ. Control corresponding to input data (
command) will output the @ symbol, and the next input r-
The holder allows attachment.

The above explanation assumes that the input circuit 1 is a numeric key system, but if a system in which one key corresponds to one disk is used, the above steps
is omitted, leaving only steps ■ to ■.

And control oi from 1lilJ l+tl1 circuit 15
The disc pulling unit 26 to which the IU is supplied has a 7" 4 disc 1A saw arm 17, and the disc pulling structure 16 itself moves or accommodates a large number of discs 18). By moving the entire tray (not shown), the disk position sensors 19 and 20 select the desired disk and move the disk J'! selection arm 1.
7 to move the disc onto the disc moving unit (turntable) 2 of the playback unit 27. After this, the playback section 27 plays the A-student of Akishishi as mentioned above! 1.H work will be shielded.

However, the conventional multi-disc automatic playback WL as described above has the following drawbacks because it uses a key switch circuit as an input circuit for inputting simple data.

In other words, in the case of numeric keys [including combinations of 1 and 1 and alphabet 2], the input operation is 1.
It is easy to make a human error due to page management, and until all the input data is collected, it is like Samurai 1'A, 4, so it is difficult to take quick action. .

-Still, in the case of the system where one key corresponds to one disc, there is a problem that keys for the number of stored discs are required and the number of discs that can be stored is limited. There is.

It should be noted that these problems will be further aggravated if it is applied to optical compact discs (CDs), which have recently become popular. Because,
In the case of CDs, there are many songs recorded on one disc,
This is also because it is desired to increase the number of discs that can be stored.

[Purpose of the invention]

Therefore, the present invention has been made in view of the above points, and it is possible to easily perform the frugal data input operation.
Moreover, it is an object of the present invention to provide an extremely good multi-disc automatic playback device that is improved so that the number of discs that can be stored is not limited, without complicating the purchasing process.

[Summary of the invention]

The multi-disc automatic playback device W according to the present invention is a multi-disk automatic f4 playback device that selectively plays a desired disc from among a large number of discs. It is possible to read optically the data displayed on the screen (a scientific frugal search that allows you to input the apex data by 9 degrees mechanically). 'tljl to identify the given examiner data and select the disk corresponding to λ1 from the Maki's disk from the disk corresponding to the mature tree data.
1) A control system that generates 1 command and 4 commands is considered to be stable.

[Example of packaging of invention]

Hereinafter, the present invention will be explained in detail with reference to the drawings.

That is, in FIG. 1, the same reference numerals are given to the parts that are purchased in the same manner as in FIG. 3, and the explanation thereof is omitted. This is similar to the input circuit using the key switch shown in Figure 3. In other words, the optical search data manual unit 30 prepares in advance, for example, a unique data for each disk, as input #1+'f714 (search data) for disc selection, so that the optical reading υ is 1:1. There are various services in which an optical retrieval data display 1 stem 31 displaying a coded item is prepared. This optical search data display 1 medium 31 is, for example, a book-type medium 31h on which a group of barcodes unique to each disc are printed as optically readable search data.
31b in card format can be used, and especially by standardizing the printing (display) format, nine meters can be used.
It is possible to Further, it is necessary to prepare an optical reader 32 for optically reading the search data as the input source information displayed on the optical search data display medium 31 in an optically readable manner. There is. This optical reading element 32 can be used manually or automatically to optically read a bar code as described above as input source information. 1h, it is possible to use a piece of wood that emits light while moving relative to the stem 32, reads the reflected light as an optical signal, and outputs it. The optical signal from this optical reading element 32 is inputted to an #S$ terminal input circuit 33 which performs signal processing such as converting it into an electric/digital signal. . In this case, the so-called light
Regarding the electrical conversion function, the optical single-reflection element 32
It is also possible to have it in itself.

Next, the control circuit 34 to which the input data from the search data input section 30 as described above is supplied has a recognition section 35, a judgment section 36, and an instruction section 37, like the one shown in FIG.
The internal data processing format is different from that shown in FIG. 3, as described above.

Note that the disc selection section 26 and disc playback section 27 other than those described above are the same as those shown in Fig. B3.

FIG. 2 shows a flowchart when a microcomputer is used as the control circuit 74.

In this case, the input data is optically read input source information input by the optical search data input unit 30 as described above, so for example, if it is a barcode, Q1 corresponding to the barcode is input. #l, I
It is a logic signal (electrically) based on a combination of tO" (signals of Irepel H10 and Irepel L).Here, the input data can include a plurality of data at once.

First, in step @, it is monitored whether there is continuous input data as described above. This V7i fA is executed by recognizing the start character (identification mark added at the beginning of the code) and reading the subsequent input data continuously, and if there is input data, the next step is executed. Proceed to ■.

In step ■, first, at a certain time, an input r-ta (
It recognizes and inputs barcodes (click on the barcode) and temporarily stores them in its internal memory. Next, since this memory data is a waveform memory that has been manually created, this is converted into Rono, Kudata H, and LV based on a certain pain level. Then, this converted Ronok data L.I.
, L are arranged at certain time intervals, a data group of Rono and Kudata is generated. When the data counting in step and f is completed as described above, the process proceeds to step @ of C missing.

In step ((b), the above-mentioned rono, ku data + iP is actually converted into a character (character) having ha and ni. This is accomplished by associating the character group with the input Ronok data and Kinbi Kai.

When the data decoding in step (B) is completed as described above, the process proceeds to the next step (2).

In step (2), it is determined whether the decoded data is correct. This determination is carried out by, for example, preparing check data in advance in the data (code) and comparing the lf4d data of the check data with the other 11 reading data. As described above, the check to see if the data is valid in step (2) is completed, and the next steps (2), (2), and (2) are frozen.

By the way, in the above steps [Yes] ~ @, 1
Once the user has finished inputting the search data,
ljα is automatically executed, and all input data is processed as quickly as possible without creating a waiting loop like in tE.

In addition, in the next step, (2J, ■ is the fourth
Since it is performed in the same way as in the case shown in the figure, its explanation will be omitted.

The multi-disc automatic playback device equipped with the optical search data input unit 30 as described above is not only capable of extremely simple input operations for disc selection, but also capable of inputting a plurality of data at once. Even if there is a defect in the input data, it is possible to automatically obtain a correct data group by checking and correcting it (adding functionality).

Moreover, it is possible to configure Hr+i, 1 and 1 without using a key switch, etc., and it is possible to eliminate the limitation on the number of discs that can be stored, especially for CDs.
This is useful in the case of

Although the above explanation was limited to the selection of only discs, it goes without saying that it can also be applied to the selection of a desired song on a desired disc from among a large number of discs, as in the case of applying to CDs. .

In other words, since multiple pieces of data can be entered at once as mentioned above, it is probably best to input the song number along with the disc number.In this case, after selecting the desired disc, the desired song The process of selecting can be easily performed by performing it between the control circuit and the reproducing section.

Furthermore, the present invention is not limited to the embodiments described above and illustrated, and various modifications and applications may be made within the group I1α without departing from the gist of the present invention.

〔Effect of the invention〕

Therefore, as described in detail above, according to the present invention, the search data input operation can be performed more easily, and the structure is not complicated, and the number of discs that can be stored is not limited. It becomes possible to provide a good multi-disc automatic playback device.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the structure of a multi-disc automatic playback device according to an embodiment of the present invention, and FIG. A
A flowchart explaining the operation of the main parts of J, Part 3
FIG. 4 is a configuration explanatory diagram showing a conventional multi-disc automatic playback device, and FIG. 4 is a flowchart of main parts for explaining the operation of FIG. 3. 30... Optical search data input section, 31... Optical search data display medium, 32... Optical reading element,
33... Optical information input circuit, 34... Control circuit, 1
6... Disc selection section, 27... Playback section.

Claims (1)

[Claims] In a multi-disc automatic playback device that automatically plays a desired disc from among a large number of discs, optically reads search data that is associated with each of the large number of discs and is displayed in an optically readable manner. control for generating a control command signal for identifying the search data input by the input means and selecting a disk corresponding to the search data from among the plurality of disks; A multi-disc automatic playback device comprising: means.