JPH0376086A - Stereo reproducing device - Google Patents

Abstract

PURPOSE:To readily reproduce sound in a previously set condition and to improve operability by operating prescribed keys and controlling a sound signal source and a sound signal processing part to a previously set condition. CONSTITUTION:An amplifier device control part 1, a graphic equalizer control part 2, a DC player control part 3, a tape deck control part 4 and a tuner control part 5 are composed of respective microcomputers and all of them are connected through a bus line 9. In this case, a program function operation part 6 equipped with plural operational keys is connected to the bus line 9, and through the operation of the operational keys, program function setting instructions and program function control instructions are transmitted to the bus line 9. Thus, only through the operations of the prescribed keys in the program function operation part 9, a sound signal from a required sound source can be reproduced from a speaker with a set sound volume and set frequency characteristics.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a stereo playback device suitable for application to, for example, a device called component stereo in which an amplifier, a tuner, a tape deck, a CD player, etc. are combined.

[Summary of the invention]

The present invention improves operability in a stereo playback device suitable for component stereo etc. by controlling each part to a preset state by operating a predetermined key.

[Conventional technology]

Conventionally, as shown in FIG. 9, a conventional stereo playback device includes a plurality of audio signal sources such as a tuner a, a tape deck b, and a CD player C, and an amplifier device d as a signal processing section.
Various types of products called component stereo, which are a combination of left and right speakers e, have been commercialized. In this case, each of the signal sources a, b, and c and the amplifier device d are equipped with a control circuit consisting of a microcomputer in recent years, and various controls are performed by this microcomputer.

For example, the reception frequency at tuner a, the tape running on tape deck b, the playback order on CD player C, the amplifier device d
Various controls such as volume and function switching are performed by microcomputers installed in each device.

[Problem to be solved by the invention]

By the way, if you use a microcomputer to control it in this way, in addition to the basic operation control described above, you can also perform various functions such as delicate adjustment of the frequency characteristics of the amplifier (or graphic equalizer), timer recording function, etc. Control can be performed relatively easily. Therefore, in recent years, this type of component stereo has tended to have more functions that can be operated, and the number of operation keys attached to the device has also increased significantly, for example, some have hundreds of keys attached. .

As the number of functions and operation keys that can be operated increases in this way, very complicated operations are required during actual use, and there is a risk that unaccustomed users may not know which keys to press and may be unable to operate the device. there were.

In view of the above, an object of the present invention is to improve the operability of a stereo playback device that can perform multi-functional operations.

[Means to solve the problem]

As shown in FIG. 1, for example, the stereo playback device of the present invention includes a plurality of audio signal sources and an audio signal processing unit that processes and outputs audio signals supplied from the plurality of audio signal sources. In the playback device, by operating a predetermined key on the program function operation section (6),
The audio signal source and the audio signal processing section are controlled to a preset state.

[Effect]

According to such a configuration, the audio signal from the required sound source can be reproduced from the speaker in various conditions such as set volume and frequency characteristics simply by operating a predetermined key on the program function operation section (6). , improves operability.

〔Example〕

Hereinafter, one embodiment of the stereo reproduction device of the present invention will be described with reference to FIGS. 1 to 7.

This example is applied to a component stereo system like the example shown in FIG. 9 described above, and the control sections of each device are connected via path lines. That is, in FIG. 1, (1) is the control section of the amplifier device, (2) is the control section of the graphic equalizer, [3] is the control section of the CD player, (4) is the control section of the tape deck, and (5) is the control section of the tape deck. shows the control section of the tuner,
Each of the control units (1) to (5) is composed of a micro combinator, and the control units (1) to (5) are connected to each other via a pass line (9).
5) is connected. In this case, the amplifier device is equipped with a function changeover (input audio changeover) switch, and the control section (1) of the amplifier device also performs function changeover control. Furthermore, memories (la), (2a), and (5a) are connected to the control unit (1) of the amplifier device, the control unit (2) of the graphic equalizer, and the control unit (5) of the tuner, respectively. When a program function set command 1.2 or 3, which will be described later, is supplied via the pass line (9), this memory (la), (2a
), (5a) are control parts (1), (2), (5
) can be stored together with the command number, and the program function call command 1.2
or 3 is supplied via the pass line (9), the control state stored together with the corresponding command number is stored in the memory (l
a), (2a), and (5a) so that the controllers (1), (2), and (5) can reproduce the control state. At the time of program function call, when the function to be switched by the control section (1) of the amplifier device is CD or tape deck, a CD play command or a tape play command is sent from the control section (1) to the pass line (9). It is.

In addition, in this example, a plurality of operation keys (6a) described later are used.
~(6d) A program function operation unit (
6) is connected to the pass line (9), and the operation key (6) is connected to the pass line (9).
A program function set command and a program function call command can be sent to the pass line (9) by the operations a) to (6d).

In this case, the second operation keys (6a) to (6d) are
As shown in the figure, the first. It includes second and third program function keys (6a), (6b) and (6C) and a set key (6d), and is arranged, for example, on the front of the amplifier device. Then, within 5 seconds after pressing the set key (6d), press any program function key (
By pressing 6a) to (6C), program function set command 1, 2 or 3 is sent, and when only one of the program function keys (6a) to (6c) is pressed, program function call command 1 is sent.
, 2 or 3 are sent.

Furthermore, (7) in the figure shows a remote control signal receiving section, and when this remote control signal receiving section (7) receives an infrared signal from a remote commander (not shown), it is supplied to a decoder (8), and this Decoder (8)
This is so that an operation command corresponding to the light reception signal can be sent to the pass line (9). In this case, in this example, the beam remote commander is also provided with a program function key, and by operating this program function key, a program function call command is sent from the decoder (8) to the pass line (9).

Next, we will explain the operation of the stereo playback device of this example, focusing on the program function function, with reference to the flowcharts in Figures 3 to 7. First, when using this program function function, Work needs to be done. At the time of setting, each device constituting the stereo reproduction apparatus is operated to reproduce an audio signal from an arbitrary sound source (for example, a CD player) to be set.

In this case, the graphic equalizer is operated to set the frequency characteristics as necessary. In this state, the current playback state is set by operating the keys on the program function operation section (6). That is, as shown in the flowchart of Fig. 3, after pressing the set key (6d),
Within seconds, press any program function key (6
By pressing a> to (6C>), program function set commands 1, 2, or 3 are transmitted from the program function operation section (6) to each device via the pass line (9).For example, the first When the program function key (6a) is pressed, the program function set command 1 is transmitted.Then, the control section (1) of the amplifier device, graphic equalizer and chisel, (
In 2) and (5), as shown in the flowchart of FIG. 4, upon receiving these program function set commands 1 to 3, each control unit (1), (2), and (5) changes the current control state. , connected memory (la),
(2a) and (5a). At this time, the command number ■.

2 or 3 are also stored at the same time.

In this way, the program functions are set, and each program function key (6a) to
Since a set is made every (6C), a maximum of 3 types of Cef) can be made. Note that by resetting to the same number, the contents of the previous set will be deleted and a new set will be created.

By setting the program function in this way, the operating state at the time of setting can be reproduced at any time. That is, as shown in the flowchart of FIG. 5, by pressing any of the first to third program function keys (6a) to (6C), the program function corresponding to the pressed key (6a) to (6C) is executed. Call commands 1, 2, or 3 are transmitted from the program function operating section (6) to each device via the pass line (9). Then, when the graphic equalizer and tuner control units (2) and (5) receive this program function call command 1.2 or 3, as shown in the flowchart of FIG. 5) reads out the control data stored with the corresponding command number 1.2 or 3 from the connected memo IJ (2a) and <5a>, and adjusts the graphic equalizer and Activate the tuner. Note that when the set program function does not use the tuner, the tuner does not operate. Furthermore, in the control section (1) of the amplifier device,
As shown in the flowchart of FIG. 7, upon receiving this program function call command 1.2 or 3, the control section (1) transfers the control data stored together with the corresponding command number 1.2 or 3 to the connected Memo! J (la)
The amplifier device is operated in a state based on the read control data, and it is determined whether the function switching at this time is a CD player or a tape deck, and if it is a CD player, the pass line (
A CD play command is sent to the control section (3) of the CD player via the line 9), and when it is a tape deck, a tape play command is sent to the control section (4) of the tape deck via the pass line (9).

By operating in accordance with the program function call command in this manner, music or the like is reproduced under the same conditions as when the program function was set. That is,
What is an amplifier device, graphic equalizer, and tuner?
The operating state of the cella is reproduced based on the data stored in the memories (la), (2a) and (5a) connected to the respective control units (1), (2) and (5) at the time of setting. So, for example, use the first program function key (6a) to select an FM with a frequency of 82.5MHz.
When you set the broadcast reception to emphasize the low range with a graphic equalizer and play it from the speakers,
By simply pressing the first program function key (6a) at any time, this 82.5Mflz FM broadcast is played back from the speaker with the same frequency characteristics and volume as when set, emphasizing the low range.

Also, for example, the second program function key (6
b) When you set the CD player to play a CD, simply press the second program function key (6b) at any time to play the CD.
The music etc. recorded on the device are played back from the speaker with the same frequency characteristics and the same volume as when the device was set.

Note that the setting state can be similarly reproduced by operating a program function key (not shown) on the remote commander.

In this way, according to this example, simply by pressing any of the program function keys (6a) to (6c), the preset state is reproduced.
You can play music, etc. from the desired sound source with the settings (frequency characteristics, volume, etc.) without operating any keys on each device other than the operation in step 6C), without having to perform complicated key operations. It can be easily played. Therefore, even a person who is not familiar with the operation can easily use this stereo.

In this case, in this example, the program function operation unit (6) only needs to send out set commands and call commands in response to the operations of the keys (6a) to (6d), and the configuration is simple. In addition, operation commands for the CD player and tape deck, which perform only relatively simple control, are sent to the control unit (1) of the amplifier device according to the function switching state.
Since the CD player and tape deck are configured to transmit signals, there is no need to provide memory for program functions in the CD player and tape deck, and the configuration is simple.

Note that the program function keys (shown in Figure 2)
Instead of providing keys 6a) to (6C), other keys may also be used. That is, for example, as shown in FIG.
Function switching keys (10a) and (10b) indicating the tuner, tape deck, and CD player.

A program function key (11) is provided adjacent to (10c). After pressing the program function key (11) for a long time (for example, 2 seconds), press the function key switching keys (10a) to (IOC).
By pressing one of the buttons, the program function is set. After making this setting, by pressing the program function key (11) for a short time and then pressing the set function switching key, the program function state set at any time is entered. By using keys in this manner, the number of keys arranged on the device can be reduced, and the configuration can be simplified.

Further, in the above embodiment, a memory is provided on the control section side of each device to store the set contents of the program function, but for example, a memory may be provided on the program function operation section (6) and this memory The set contents of each device may be stored. By doing this, for example, by simply providing a memory backup circuit only in the memory of this program function operation section (6), it is possible to prevent the contents of the program function set from being lost when the power is cut off.

Furthermore, by setting typical usage examples in the program functions in advance when the stereo is manufactured, each user can use it immediately after purchasing the stereo without having to remember how to use it.

Furthermore, in this example, only call commands can be issued from the remote commander, but a set key may also be provided to enable set commands, or keys for program functions may be provided only on the remote commander side. , program functions may be set and called from this remote command.

Furthermore, in the above embodiment, the program function is used during normal playback, but it may also be used during timer operation. That is, by setting the program function number together with the time to operate when the timer is set, each device may perform the operation according to the set program function at the set time.

Furthermore, it goes without saying that the present invention is not limited to the above-mentioned embodiments, and can take various other configurations.

Since playback is automatically performed in a preset state, even if the device has a large number of operation keys, playback can be easily performed in any preset state without complicated operations, improving operability. There are good profits.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing one embodiment of the present invention, Fig. 2 is a route map showing the key arrangement of one embodiment, Fig. 3, Fig. 4, Fig. 5, Fig. 6, and Fig. 7 are FIG. 8 is a route diagram showing a key arrangement of another embodiment of the present invention, and FIG. 9 is a front view showing an example of a conventional stereo device. (1), (2), (3), (4), (5)
is a control unit, (la), (2a), and (5a) are memories, (6) is a program function operation unit, and (9) is a pass line. [Effects of the Invention] According to the present invention, by simply operating a predetermined key,
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Claims (1)

[Claims] In a stereo playback device equipped with a plurality of audio signal sources and an audio signal processing section that processes and outputs audio signals supplied from the plurality of audio signal sources, by operating a predetermined key, a preset The stereo playback device is configured to control the audio signal source and the audio signal processing section to maintain the same state.