JP2898006B2 - Multi-sourcing system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a multi-sourcing system in which a plurality of sound source devices and a plurality of operation and listening devices that are shared are interconnected.

[Problems to be solved by the prior art and the invention]

Often, multiple audio systems are installed in one building for home or business use. In this case, each audio system must be provided in a sound source device such as a tuner, a player, or the like, which requires extra cost and additional installation space. As a system which is not in one building but has a common sound source device, there is an audio signal distribution system by cable broadcasting which is widely used in downtowns and the like. However, in this system, the listener can select only the broadcast channel, and cannot directly operate the sound source device to select a song.
This is far from the real feeling of having an individual audio system.

Therefore, an object of the present invention is to provide an operation feeling close to that of having an audio system individually by enabling a plurality of sound source devices to be commonly used, but also enabling the operation and listening device to control the sound source devices. It is an object of the present invention to provide a multi-sourcing system capable of obtaining

[Means for solving the problem]

FIG. 1 is a diagram showing the principle configuration of a multi-sourcing system according to the present invention. In the figure, a multi-sourcing system according to the present invention includes a plurality of sound source devices 10 and a plurality of switching devices 12 for selecting any one of the plurality of sound source devices 10.
A main-side system 50 including the plurality of sound source devices 10 and a control device 14 for controlling the plurality of switching devices 12; and an audio signal from the sound source device 10 selected by the plurality of switching devices 12 is supplied. At least one speaker
A plurality of personal-side systems 60 each having 16
In a multi-sourcing system composed of
The personal-side system 60 includes the main-side control device 14.
A control device 18 connected to the main system 50 for outputting a selection request signal for requesting the main system 50 to select one of the plurality of sound source devices 10 and a control request signal for requesting control of the selected sound source device. The control device 14 of the main system includes the sound source switching means 20 for switching the plurality of switching devices 12 in accordance with the selection request signal from each personal system 60, and the control request from each personal system 60. It is characterized by comprising priority control means 22 for judging the signal priority for each sound source device and controlling each of the sound source devices 10 according to a control request signal from the personal system having the highest priority. is there.

(Operation)

In response to a control request signal issued by the control device 18 of the personal system 60, the priority control means 22 provided in the control device 14 of the main system 50 controls the sound source device 10 to individually have audio signals. Operation feeling similar to the case is obtained. In some cases, a plurality of personal-side systems 60 may simultaneously select the same sound source device 10. At this time, the sound source switching means 20 connects one sound source device 10 to the plurality of personal systems 60, and the plurality of personal systems 60 listen to the same reproduced sound.
However, confusion arises if a plurality of personal-side systems 60 try to control at the same time. Therefore, the priority control means 22 controls each personal-side system with a priority to prevent confusion.

〔Example〕

FIG. 2 is a diagram showing a part corresponding to the main system 50 in one embodiment of the multi-sourcing system according to the present invention.

The compact disk player 100, AM / FM tuner, and cassette deck 104 are each a compact disk (C
D), which outputs audio signals using AM and FM broadcasts and cassette tapes as sound sources.
It is controlled by a control signal from 0. It is a CD for example
In the case of the player 100, the search and reproduction of the music recorded on the CD are performed, and in the case of the AM / FM tuner 102,
Searching for broadcast stations and receiving them, etc.
If it is 104, it is a control such as fast-forward, rewind, and playback of the cassette tape.

The CD player 100 may be provided with a CD autochanger, in which case the control is also included. First
For example, a cable broadcasting receiver or the like can be connected to the standby device 106, and in that case, control such as channel selection can be performed, and an audio signal of the received channel is output. Changeover switches 122 to 128 are microcomputers
Based on the control from 140, one of the audio signals from the sound source devices 100 to 106 is selected and supplied to each of the four personal systems. The microcomputer 140 may have a known configuration including a CPU, a ROM, a RAM, and an input / output interface. The microcomputer 140 controls the tone generators 100 to 106 through the input / output interface by executing a software program stored in the ROM, and the changeover switch 122. To 128 and communication with each personal system. Any known communication technique between computers can be applied to the communication with each personal system as long as the communication speed is not more than a level that does not give an uncomfortable feeling to the operator.

FIG. 3 shows an embodiment of the personal system 60. The signal sent from the main side is subjected to a desired volume sound quality adjustment in the volume sound quality adjustment device 160,
The signal is amplified by the power amplifier 162 and supplied to the speakers 164 and 166. The microcomputer 180 may have a known configuration including a CPU, a ROM, a RAM, and an input / output interface, and particularly includes an electro-optical conversion circuit and an optical-electric conversion circuit for transmitting and receiving information to and from the remote control device 240. I have.
In addition, by executing a software program stored in the ROM, control of the volume / sound quality control device 160, communication with the main microcomputer 140, and communication with the remote control device 240 are performed via the input / output interface. The remote control device 240 also includes a microcomputer having the same configuration, an electric-optical conversion circuit and an optical-electrical conversion circuit, and further includes a display 242 and a key switch 2.
Has 44. The microcomputer in the remote control device 240 executes input of information of the key switch 244, output to the display 242, and communication with the microcomputer 180 through the input / output interface by executing the software program stored in the ROM. Perform processing.

FIG. 4 is a diagram showing a second embodiment of the main system 50. In the present embodiment, each of the tone generators 100 to 1 is also used in the main system similarly to the personal system.
06 to listen to the audio signal, each sound source device 100-106
A device has been added to allow the control of Hereinafter, only the added device will be described. A changeover switch 120 is further added to the changeover switches 122 to 128, and like the other changeover switches, the microcomputer 14
One of the tone generators 100 to 106 is selected based on the control from 0. The audio signal selected by the switch 120 is supplied to the sound quality volume control device 144, amplified by the power amplifier 146, and supplied to the speakers 148 and 150. The remote control device 142 may have the same configuration as the remote control device 240 on the personal side. The microcomputer 140 'has an output interface for controlling the switch 120, an input / output interface for communication with the remote control device 142, and an optical
An input / output interface for controlling the electric converter circuit, the electro-optical conversion circuit, and the sound volume control device 144 is provided.

FIG. 5 is a diagram showing a third embodiment of the main system 50. In the present embodiment, a second backup device 108 is added as a sound source device that can be listened to and controlled only by the main system 50. The changeover switch 120 includes
One contact is added for switching to this spare 2108. Therefore, the microcomputer 140 "also has a function of switching to this contact, and a switch for selection thereof is added to the remote control device 142 '. The added sound source device is at hand for the operator. Therefore, it is assumed that the control is performed directly without using the microcomputer 140 ″.

FIG. 6 is a diagram showing a second embodiment of the personal system 60. In the present embodiment, a second spare device 168 is added as a sound source device that can be listened to and controlled only by the personal side system with the same intention as in FIG. Then, a changeover switch 170 for switching between the audio signal and the audio signal supplied from the main side is added. Microcomputer 180 '
Has a function to switch this changeover switch 170,
The remote control device 240 'includes a second spare device 168.
A switch for selecting is added.

Although three examples of the main system 50 and two examples of the personal system 60 have been described, any combination of these is also possible. Hereinafter, the combination of the embodiment shown in FIG. 5 for the main system 50 and the embodiment shown in FIG. 6 for the personal system 60 will be described.
Other combinations can be applied by deleting or disabling unnecessary functions.

FIG. 7 is a diagram showing the appearance of the remote control device 240 'or 142'. Indicators 152 and 242 are each sound source device 100
To display the selected state and the control state of time to time, the control state of the time and volume sound quality control devices 144 and 160, and the like.
The key switches 154 and 244 are for performing processes such as selection, control, and time adjustment of each of the tone generators 100 to 108.
The switch group 420 is a switch for controlling the volume sound quality control devices 144 and 160. For example, when a switch marked with “+” is pressed, the volume is increased. The light transmitting unit 200 is for transmitting an optical signal to a main unit composed of the microcomputers 140 ″ and 180 ′, and the light receiving unit 202 is for receiving an optical signal from the main unit.

Characters 304 representing each sound source device are displayed in the displays 152 and 242, and a selection display 300 that is lit when the sound source device is selected is provided at a lower portion thereof, and the sound source device is provided at an upper portion thereof. A bar-shaped controllable display 302 is provided which lights up when controllable. When one of the sound source devices 100 to 106 is selected in each of the remote control devices, only the selection display 300 for the selected one sound source device is turned on. In addition, the controllable display 302 of the sound source device that is not selected in any of the remote control devices is lit in all the remote control devices, and for the sound source device that is selected in one or more remote control devices, The controllable display 302 is turned on only in the remote control device having the highest priority. In the number display unit 306, the control state of the selected sound source device is displayed, for example, in the case of the AM / FM tuner 102, the frequency of the broadcast station being received. Alternatively, when no sound source device is selected, the time is displayed.

Among the key switches 154 and 244, the sound source selection switch 400 is a switch for selecting any one of the sound source devices 100 to 108. A numeric keypad 402 is a key switch used for inputting a numeral for setting a track number of a CD player or adjusting a time. Switch group 406, 408, 41
0 is a switch for controlling the sound source device in which the selection display 300 is lit and the controllable display 302 is lit.For example, the key switch 411 in the switch group 410 is a switch for rewinding the cassette tape. And 412 are switches for fast-forwarding.

Fig. 8 is a flowchart of the processing in the microcomputer 140 "provided in the main system 50 shown in Fig. 5. First, it is determined whether or not a key switch on each remote control device has been pressed. The information of the pressed key switch is stored (step a), that is, the main-side remote control device
The microcomputer in the key switch 142 'detects that the key switch on the key switch is pressed, and information transmitted through the optical transmission device 143 and the key switch on the personal remote control device 240' (FIG. 6). Is pressed by the microcomputer, and the information sent via the optical transmission line 241 and the information sent via the microcomputer 180 'are stored therein. Next, a parameter i representing the device number (i = 1 represents a request from the remote control device 142 'on the main side, i = 2 to
5 is a remote control device for each personal computer
Is substituted for 1 (step 240b) (step b), and the loop processing of steps c to m is repeated until i = 1 to 5, thereby performing processing for the pressed key switch.
For the remote control device corresponding to the value of i,
If the pressed key is the sound source selection switch 400 (FIG. 7) (step c), it is determined whether the sound source corresponding to the pressed sound source selection switch 400 is selected (step i). If the selected sound source has already been selected, one of the switches 120 to 128 is controlled so as to cancel the sound source selection, and an operation order update process (to be described in detail later) is performed (step m). If the sound source has not been selected, it is next determined whether another sound source has not been selected before (step j). If so, any one of the switches 120 to 128 is used to cancel the selection. And the process of updating the operation order is similarly performed (step k). Then, one of the switches 120 to 128 is controlled so as to select a sound source corresponding to the pressed key switch, and an operation right setting process (described in detail later) is performed (step l). If it is determined in step c that the switch is not the sound source selection switch 400, then it is determined whether the switch is for operating the sound source device (steps d, 406, 408, 410) (step d). It is determined whether or not there is a key switch (described later in detail) (step e), and if there is an operation right, a code corresponding to the pressed key switch is stored in the memory (step f). Next, it is determined whether or not the parameter i is equal to 5 (step g). If not, the value of i is incremented (step h), and the process returns to the beginning of the loop processing (step c). If the value of the parameter i is equal to 5 in step g, the loop ends, and step f
In step n, a control command corresponding to the information stored in the memory is output to each of the tone generators 100 to 108 to control each of the tone generators 100 to 108 (step n). If the last pressed key switch is a switch 420 relating to control of the volume and sound quality, the control of the sound quality and volume control device 144 is performed (step o).
The information to be displayed and output to 242 is output (step p). This information is stored in the remote control device 1 connected to the microcomputer 140 ″ of the main system.
The light is transmitted via the optical transmission line 143 to the remote control device 240 'connected to the microcomputer 180' of the personal system under the control of the microcomputer 180 '. It is transmitted via the path 241.

The operation of the microcomputer built in the remote control devices 142 'and 240' is not different from the processing of the microcomputer built in the general remote control device, and the code corresponding to the pressed key switch is transmitted to the light transmitting unit 200. (FIG. 7) and output a display corresponding to the information received by the light receiving section 202 to a display.

Microcomputer in personal system
In the process of 180 '(FIG. 6), the display code sent from the microcomputer 140 "of the main system is relayed to the remote control device 240' and sent from the remote control device 240 '. Basically, a code corresponding to the pressed key switch is mediated to the microcomputer 140 ″ of the main system. However, when the code of the key switch for selecting the second spare device 168 is sent, the code for selecting the key switch is not sent to the main system.
The switching of the switch 170 is controlled. When the code of the switch 420 for volume / sound quality control is sent, the corresponding control is performed for the volume / sound quality control device 160, and the code for displaying the control state is sent to the remote control device 240 '. Send out.

FIG. 9 is a diagram for explaining the process of setting the operation right and the process of updating the operation order described above. For the sake of simplicity, the cassette deck 104 (CS
) And only the compact disc player 100 (represented by CD) will be described. First, it is assumed that the operation order is set as shown in the column (a). Regarding the upper numbers 1 to 5, 1 represents the main system and 2 to 5 represent each personal system, similarly to the parameter i described above. This state is 3 in the order of 2 → 1 → 3
This appears when the cassette deck 104 is selected from two systems at the same time and the compact disc player 100 is simultaneously selected from the two systems in the order of 4 → 5. In this state, regarding the cassette deck 104, the second system has the right of operation because the second system is assigned the first priority. That is, the operation right is given to the second system selected first, and the controllable display 302 on the remote control device is turned on. For the compact disc player 100, the operation right is given to the fourth system selected first.

Next, when the second system releases the selection of the cassette deck 104, the state shown in the section (b) is reached. That is,
The first system, which had the second priority, becomes the first priority and is given an operation right, and the third system changes the priority from 3 to 2.

Next, the second system is a compact disc player
When 100 is selected, the third priority is given as shown in the column (c), and the user can hear but cannot control.

〔The invention's effect〕

As described above, according to the present invention, by having a plurality of sound source devices in common, the cost of the device, the installation volume of the device, and the cost of holding the recording medium are reduced, and it is close to the case where the sound source devices are individually provided. Provided is a multi-sourcing system that provides a feeling of operation.

[Brief description of the drawings]

FIG. 1 is a diagram showing a principle configuration of a multi-sourcing system according to the present invention, FIG. 2 is a diagram showing an embodiment of a main system 50, FIG. 3 is a diagram showing an embodiment of a personal system 60, FIG. 4 is a diagram showing a second embodiment of the main system 50, FIG. 5 is a diagram showing a third embodiment of the main system 50, and FIG. 6 is a second embodiment of the personal system 60. 7 is an external view of the remote control device 240 'or 142', FIG. 8 is a flowchart of processing in the microcomputer 140 ", and FIG. 9 is an operation right setting process and operation order updating in the microcomputer 140". Figures for explaining the processing, in the figures: 144,160: volume sound quality control device; 146,162: power amplifier; 142,142 ', 240,240', 240 ″: remote control device; 152,242: display 154,244 ...... key switch.

Claims (1)

(57) [Claims] A plurality of sound source devices (10) and a plurality of switching devices (1) for selecting any one of the plurality of sound source devices (10).
2), a main system (50) including a plurality of sound source devices (10) and a control device (14) for controlling the plurality of switching devices (12), and the plurality of switching devices (12). A multi-sourcing system comprising a plurality of personal-side systems (60) each including at least one speaker (16) to which an audio signal from the selected sound source device (10) is supplied; (60) is a selection request signal that is connected to the main-side control device (14) and requests the main-side system (50) to select one of the plurality of tone generators (10). And a control device (18) for outputting a control request signal for requesting control of the selected sound source device. The control device (14) of the main system responds to the selection request signal from each personal system (60). Depending Together with the sound source switching means (20) for switching the plurality of switching devices (12), the priority of the control request signal from each personal system (60) is determined for each sound source device, and the highest priority is given to each sound source device. A multi-sourcing system comprising priority control means (22) for controlling each of the tone generators (10) in response to a control request signal from a personal system.