JPH0215483A - Magazine-type compact disk player - Google Patents

Abstract

PURPOSE:To improve the operability of the title CD player in dubbing, etc., by providing plural magazine-type CD player parts, which can execute reproduction respectively and separately, simultaneously making two player parts in to a reproducing state, and monitoring one piece of music with headphones while another piece of music is reproduced. CONSTITUTION:CDs are housed in magazines 6A and 6B and set to CD player parts 7A and 7B, and the sequence of the pieces of music to be reproduced in accordant with the sequence of the dubbing is inputted from a switch panel 15. When a reproduction start switch is depressed, while one piece of music designated as the one to be dubbed first is selected from the magazine 6A and made into the reproducing state, another piece of music designated as the one to be dubbed second is selected from the magazine 6B and made into the reproducing state. Further, the piece of music of the player part 7A is dubbed through a line output switching circuit 13 and a headphone output switching circuit 14, and simultaneously, the piece of music of the player part 7B can be monitored with the headphones. Consequently, while executing the dubbing, the piece of music to be dubbed next can be auditioned and confirmed, and the operability can be improved.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention uses a compact disc (CD) player, particularly a magazine containing a plurality of compact discs, and plays any song on any disc in the magazine. This invention relates to a magazine-type compact disc player that freely plays back discs.

[Conventional technology]

An outline of a conventional magazine-type CD player is shown in FIGS. 5 and 6.

Figure 5 shows a CD used in a magazine type CD player.
FIG. 2 is a plan view of an example of a magazine for a 6-disc set, in which case 1
Inside, six trays 2 are rotatably stacked in a shelf-like manner at a predetermined pitch around a rotating shaft 3, and compact discs (CDs) 5 are placed in a concave surface 4 formed on the top surface of each tray 2.
By placing one compact disc at a time, six CDs can be stored in one magazine, and by selectively pulling out each tray, you can freely select one of the six compact discs. It is configured so that it can be played back.

The magazine 6 is a magazine type C as shown in FIG.
The tray is set in the magazine insertion slot (not shown) of the D player 7, the tray is selectively pulled out by a disc selection drive mechanism (not shown), and the compact disc placed on the pulled out tray is rotated by a rotation servo mechanism. After the pit signal recorded on the disc surface is read out by the pickup circuit 8, it is converted into an audio signal and outputted by the playback circuit 9, and the signal is played through a speaker through the line output terminal 10 or listened to through headphones through the headphone output terminal 11. It is something.

As mentioned above, with conventional magazine-type CD players, by storing six CDs of your choice in a magazine and setting them in the player once, you can listen to the six CDs in succession or play the six CDs. I was able to pick up my favorite songs and listen to them, and enjoy various playback performances for a long time (up to about 6 hours) without having to change discs.

[Problem to be solved by the invention]

As CD players become more widespread and their uses become more diverse, they will be able to play continuously for longer periods of time without the need to change discs, and it will also be possible to freely monitor and confirm the next song to be played while a song is being played. Many people expressed a desire for a CD player with such functions. For example, when editing a dubbing onto a tape, you need to freely select your favorite songs from a large number of discs and dub them onto the tape. In some cases, you can load many discs into the player and quickly select the desired song upon request.
You need to be able to play it without fail.

In conventional magazine-type CD players, even if you increase the number of discs that can be stored in the magazine or increase the number of magazines that can be loaded, only one pickup and playback system is provided, so only one disc can be stored at the same time. It was not possible to monitor other songs while a song was playing.

[Purpose of the invention]

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, it is an object of the present invention to provide a magazine-type CD player that can play a song for a long time and allows another song to be monitored using headphones while playing one song.

[Summary of the invention]

In order to achieve the above object, the present invention provides a magazine-type CD player that is equipped with at least a line output terminal and a headphone output terminal, each of which can playback operations independently, as shown in the principle diagram in FIG. can be done, and
A plurality of magazine-type compact disc player sections each configured to be able to set a magazine, and controlling the operation of the plurality of magazine-type compact disk player sections, so as to simultaneously and independently put any two player sections into a playing state. a player control means that can be set; a line output switching means that selects a reproduction signal of one of the plurality of magazine-type compact disc player units and sends it to a line output terminal; and one of the plurality of magazine-type compact disc player units. A headphone output switching means selects the playback signal and sends it to the headphone output terminal, and a headphone output switching means selects the playback signal from one side of the two magazine-type compact disc players that are being played simultaneously and sends the playback signal from one side to the line output terminal. The apparatus is characterized by comprising an output switching control means for switching and controlling the line output switching means and the headphone output switching means so as to send the reproduced signal to the headphone output terminal.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Figure 2 shows a double magazine type CD using two magazines.
An embodiment in which the present invention is applied to a player will be shown. 6
A and 611 are magazines for a 6-CD set having the same configuration as shown in Fig. 5, and 7A and 7m are the 6th CD magazines.
There are two independent magazine-type CD player sections having a configuration similar to that shown in the figure.

The two magazine-type CD player sections 7A and 711 are each capable of independently performing playback operations, and the magazine 6A and the magazine-type CD player section 7. The magazine 6 and the magazine type CD player section 711 form a second reproduction system B (hereinafter referred to as B system).

2 is a microcomputer that controls the operation of the entire system as described later; 13 is a microcomputer 12;
The two magazine-type CD player units 7
A or 7. A line output switching circuit selects a playback output signal from the output terminal 10 and outputs it from the line output terminal 10, and I4 selects a playback output signal from the two magazine-type CD players 7A or 711 according to a switching command from the microcomputer 12, and outputs it from the headphone output terminal. A headphone output switching circuit 11 outputs a headphone output switching circuit, and a switch panel 15 inputs information and instructions necessary for CD reproduction, such as performance programs such as playback order, monitor commands, etc., and performs necessary display.

Each of the above-mentioned circuits is integrated in one country and constitutes a so-called double magazine type CD player.

Next, the operation of the above embodiment will be explained using dubbing editing as an example.

In the case of dubbing editing, a tape recorder or the like for dubbing is connected to the line output terminal, and the configuration is such that the playback signal output from the line output terminal 10 is recorded on tape.

Before starting the operation, first, store 12 CDs containing the desired songs to be dubbed into the two magazines 6A and 61, 6 CDs each, and place each magazine into its respective C.
Set the D player section 7A to 7m. In order to make the explanation easier to understand, it is assumed that the songs in the A-system magazine 6A and the songs in the B-system magazine 6° are alternately dubbed one by one, and the songs played from the switch panel 15 in the dubbing order are It is assumed that the order has been input in advance.

When the playback start switch is pressed and playback starts,
The microcomputer 12 has two C systems, A and B.
Start up the D player sections 7A and 7m, for example, first select the designated song to be dubbed first from the A-system magazine 6 and put it into playback mode, and at the same time start the B-system magazine 68.
The designated song to be dubbed as the second song is selected and put into playback mode.

Then, in parallel with the above processing, the line output switching circuit 13
and the headphone output switching circuit 14, and the line output switching circuit 13 controls the A-system CD player section 7. The headphone output switching circuit 14 is controlled to select the reproduction signal of the CD player section 78 of the B system.

As a result, the music played by the CD player section 7A of system A is sent to the tape recorder through the line output terminal 10 and is dubbed, and at the same time, the music played by the CD player section 7A of system A is sent to the tape recorder for dubbing.
The music played by the D player section 7B is monitored through the headphone output terminal 11. Therefore, while dubbing is being performed on the one hand, the next dubbing song can be previewed through the headphones connected to the headphone output terminal 11 at the same time, and the reproduction state of the song can be confirmed in advance.

Note that the next song being played in channel B may be monitored in parallel for the entire period that channel A is playing, but only for a certain period of time sufficient to confirm that the playback is good. It may be automatically or manually set to monitor and wait in a pause state after the monitoring time has elapsed.

When the playback of the A system is completed, the microcomputer 12
stops the playback operation of the CD player section 7A of the A system, and controls the CD player section 7B of the B system to start playing the monitored song. At the same time, the line output switching circuit 13 is switched to the CD player section 7. At the same time, the headphone output switching circuit 14 is switched to the CD player section 7A side, and the playback signal of the next song being played back on the CD player section 7B is output from the line output terminal 10 as a line signal.

Further, the microcomputer 12 controls the CD player section 7A of the A system, selects the next designated dubbing song, puts it into playback mode, and outputs it from the headphone output terminal 11 through the headphone output switching circuit 14.

As a result, contrary to the previous case, the line output terminal 10 outputs the reproduction signal of the B system as a dubbing output, and the headphone output terminal 11 outputs the reproduction signal of the A system as a monitor output.

By performing the above operation alternately for the A system and the B system until the end of dubbing, the line output terminal 10 and the headphone output terminal 11 output the A system playback signal and the B system playback signal as shown in FIG. The output is alternated, and you can proceed with the dubbing process while monitoring the next song to be played using the headphone output terminal.

The above-mentioned operation example is based on dubbing editing to make the explanation easier to understand, but it goes without saying that it can be performed in the same way during normal playback. Furthermore, by manually giving a switching command from the switch panel 15, the line output and monitor output can be switched freely and alternately.

Furthermore, when switching the reproduction signals of the line output switching circuit 13 and the headphone output switching circuit 14, for example, the fourth
If you switch the signal in the switching mode shown in the figure, you can perform instantaneous switching (Figure (a)), switching based on a predetermined interval between songs (Figure (b)), fade-out/fade-in switching (Figure (C)), and cross-switching (Figure (C)). Fade switching ((d)
It is possible to realize various types of switching, such as (Fig.).

Note that the scope of the term compact disc (CD) used in the present invention includes not only a regular CD for music playback, but also a CD that can record a video signal on a part of the CD and play video and music at the same time. This includes both the so-called CDV with a disc diameter of 8F and the so-called single CD with a disc diameter of 8F.

〔Effect of the invention〕

As explained above, according to the present invention, a plurality of magazine-type CD player units each capable of playing independently is provided,
Two player sections can be set to playback mode at the same time, and the playback signal of one player section can be output from the line output terminal, while the playback signal of the other player section can be freely switched to be output from the headphone output terminal. With this configuration, it is possible to play continuously for an extremely long time, and while one CD player is playing another CD,
It is possible to put the player section into a playback state and monitor the next song to be played or a desired song, thereby improving the operability of this type of CD player.

[Brief explanation of the drawing]

Fig. 1 is a principle diagram of a magazine-type CD player according to the present invention, Fig. 2 is a block diagram showing one embodiment of the invention, Fig. 3 is an explanatory diagram of switching the reproduction signal in the above embodiment, and Fig. 4 is FIG. 5 is a plan view showing an example of the structure of a magazine for a set of six CDs, and FIG. 6 is a schematic diagram of the structure of a conventional magazine-type CD player. 5...Compact disc (CD), 6a, 6
B...Magazine, 7A, 7m...Magazine type C
D player section, 10... line output terminal, 12...
Headphone output terminal, 12... Microcomputer, 13... Line output switching circuit, 14... Headphone output switching circuit. Diagram

Claims (1)

[Claims] A magazine equipped with at least a line output terminal and a headphone output terminal and containing a plurality of compact discs is used to freely select and play any song from any disc in the magazine. A plurality of magazine-type compact disk player sections, each of which is configured to perform a playback operation independently, and each of which is configured to allow a magazine to be set therein; and the plurality of magazine-type compact disk players. A player control means capable of controlling the operation of the disc player section and setting any two player sections simultaneously and independently to a playback state; A line output switching means for sending out to the line output terminal; a headphone output switching means for selecting one of the playback signals of the plurality of magazine-type compact disc player parts and sending it to the headphone output terminal; and two magazines that are being played simultaneously. Output switching for switching and controlling the line output switching means and the headphone output switching means so that when the playback signal from one side of the compact disc player section is sent to the line output terminal, the playback signal from the other side is sent to the headphone output terminal. A magazine type compact disc player characterized by comprising a control means.