JPH0814926B2 - Playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a reproducing apparatus having, for example, a compact disc player and a video disc player built therein.

[Outline of Invention]

The present invention relates to a reproducing apparatus, and when two reproducing means having different rise times are built in, a reproducing means having a short rise time is put into a standby state after rising, and a standby state is set in accordance with a rise of the reproducing means having a long rise time. By releasing it, the synchronized reproduction of the two reproducing means is enabled.

[Conventional technology]

For example, when it is desired to reproduce a video disc and a compact disc at the same time, conventionally, the reproduction buttons of these reproducing means are operated at the same time. However, since the rise time of a video disc player is generally long and the rise time of a compact disc player is short, the audio signal from the compact disc player is reproduced first even if the operations are performed at the same time as described above. It was not possible to play.

[Problems to be solved by the invention]

As described above, the conventional technique has a problem in that the synchronized reproduction of the video disc and the compact disc cannot be easily performed.

[Means for solving problems]

The present invention provides a first reproducing means (1) having a short rise time.
And a second regeneration means (2) having a long rise time,
Processing means (digital processing circuit (18), DA conversion circuit (1) for performing reproduction processing by switching (switch (16)) common reproduction signals of the same kind of signals from the first and second reproduction means
9)) and an output means (output terminal (27)) for switching (switch (26)) and outputting the signal subjected to the reproduction processing, and for simultaneously driving the first and second reproduction means. One operating means (3) is provided, and when the operating means is operated, the first and second reproducing means are simultaneously driven, and the first reproducing means is put into a standby state after rising. When the second reproducing means is activated, the standby state of the first reproducing means is released and the reproduction signal from the first reproducing means is supplied to the processing means (system control circuit (4)). It is a reproducing device.

[Work]

According to this, the reproducing means having a short rise time is put into a standby state after rising, and the standby state is canceled in synchronization with the rising of the reproducing means having a long rise time. Therefore, two reproductions can be easily performed with a simple configuration. It is possible to perform synchronized playback of the means.

〔Example〕

In FIG. 1, for example, a compact disc (CD) player (1) having a short rise time and a video disc (VD) player (2) having a long rise time are provided side by side. A CD (11) and a VD (21) are attached to these players (1) and (2), respectively, and
CD (11) and VD (21) are motors (12) and (22), respectively.
Is driven to rotate, and these motors (12), (2
The drive of 2) is controlled by the servo circuits (13) and (23), respectively.

Similarly, pickups (14) and (24) controlled by the servo circuits (13) and (23) are provided, respectively.
The signals from (11) and VD (21) are reproduced, and the reproduced signals are supplied to the reproduction circuits (15) and (25) to take out desired reproduction signals.

Further, the digital audio signals from the reproduction circuits (15) and (25) are selected by the switch (16), and the selected signal is passed through the RF amplifier (17) to the digital processing circuit (1
8) Supplied to. Then, the processed signal is supplied to the DA conversion circuit (19), and the converted audio signal is output to the output terminal (2
0) is taken out.

Further, the analog audio signal from the reproduction circuit (25) and the audio signal from the DA conversion circuit (14) are selected by the switch (26), and the selected signal is taken out to the output terminal (27). Further, the video signal from the reproducing circuit (25) is taken out to the output terminal (28).

Further, for example, a front panel (not shown) is provided with a synchro operation switch (3), and this switch (3)
Is supplied to the system control circuit (4), and the signal from this control circuit (4) is supplied to the servo circuits (13) and (23). In addition, the regeneration circuit (15),
A signal indicating that the players (1) and (2) have started up from (25) and the reproduction signal has been taken out is supplied to the control circuit (4).

Therefore, in this device, the digital audio signal from the CD (11) is taken out to the output terminal (20) by driving the player (1), and the video from the VD (21) is driven by driving the player (2). A signal and a sound signal are taken out to the output terminals (28) and (27), and when a digital audio signal is recorded in this VD (21), this signal is taken out to the output terminal (20) or (27). To be done.

Further, when the players (1) and (2) are driven simultaneously, the video signals from the VD (21) are output to the output terminal (2
The digital audio signal from the CD (11) can be taken out to the output terminal (20) or (27) while being taken out to 8).

When the players (1) and (2) are driven at the same time, when the synchro operation switch (3) is operated, the control circuit (4) controls according to the flow chart shown in FIG.

That is, in the figure, when the sync mode is started, driving of the CD player (1) and VD player (2) is started in step [1], and it is judged in step [2] that the CD player (1) has started up. If it has not risen, step [2] is repeated. When the rise is determined, the CD player (1) is placed in a standby state in step [3], and the rise of the VD player (2) is determined in step [4]. When it has not risen, the process returns to step [3]. Further, when the rising is judged in step [4], the standby state of the CD player (1) is released in step [5] and the normal reproduction mode is entered.

Therefore, in this device, as shown in FIG. 3, when the synchro operation switch (3) is operated while both the CD player (1) and the VD player (2) are stopped, the players (1) and (2) are Both of them are put into the start-up state, and at this time, the CD player (1) having a short start-up time is put into the standby state immediately after the start-up is completed. Then, when the startup of the VD player (2) is completed, the player (1),
In the case of (2), both are brought into the reproduction state, and the synchronous reproduction is started.

In this way, the reproduction by the CD player (1) and the VD player (2) is performed. According to the above-mentioned device, the reproducing means having a short rise time is put in the standby state after the rising, and the reproducing means having a long rise time is used. Since the stand-by state is released in synchronization with the rising, the synchronous reproduction of the two reproducing means can be easily performed with a simple structure.

It should be noted that in the above-described device, the start of synchronous reproduction is not limited to the stop state of both the players (1) and (2) described above, and it is also possible to start either one of them in the standby state or both of them in the standby state. The stopped state may be a so-called eject state in which the tray is ejected and the disc is placed on the tray. It can also be performed in the program reproduction mode in which the track number or chapter number on the disc is designated.

Further, in the above-mentioned device, when the CD player (1) or the VD player (2) is stopped during the synchronized reproduction, the player stopped as shown on the right side of FIG. The player may be placed in a standby state. By doing so, the next synchronous reproduction can be started more smoothly.

〔The invention's effect〕

According to the present invention, the reproducing means having a short rise time is put into the standby state after rising, and the standby state is released in synchronization with the rising of the reproducing means having a long rise time. It is now possible to perform synchronized playback of the playback means.

[Brief description of drawings]

FIG. 1 is a block diagram of an example of the present invention, and FIGS. 2 and 3 are diagrams for explaining the same. (1) is a compact disc player, (2) is a video disc player, (3) is a synchro operation switch,
(4) is a system control circuit.

Claims (1)

[Claims] 1. A first reproduction means having a short rise time and a second reproduction means having a long rise time, wherein the reproduction signals of the same kind of signals from the first and second reproduction means are switched. Is provided with a processing means for performing reproduction processing and an output means for switching and outputting the reproduction-processed signal, and a single operation means for simultaneously driving the first and second reproduction means is provided. When the means is operated, the first and second regenerating means are simultaneously driven, and the first regenerating means is in a standby state after rising, and when the second regenerating means is standing up, A reproducing apparatus in which the standby state of the first reproducing means is released and the reproduced signal from the first reproducing means is supplied to the processing means.