JPH0335750B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a centralized control device that centrally controls a plurality of source devices using a control circuit such as a microprocessor.

[Background Art] In a conventional system component stereo, a large number of switch groups are provided to control the operation of each source device, such as a tape deck, tuner, player, etc. As a result, different switches must be used to operate each device, making the operation complicated and causing disadvantages such as an increase in the number of parts of the keyboard and an increase in the size of the keyboard.

On the other hand, among recent audio devices, it has been proposed to use a microprocessor such as a microcomputer, which is less burdensome to manufacture, to control the operation of the audio device. However, there is no connection between devices, the number of operation switches remains the same, and the operational burden on listeners is not alleviated in the slightest.

In addition, there have been cases where multiple source selection keys are pressed at the same time by mistake, causing inconvenience in subsequent operations.

[Summary of the Invention] The present invention has been made in view of the above circumstances, and is a central control device that centrally controls a plurality of source devices, and includes a source device selection keyboard section for selecting one of the source devices. and an operation control keyboard section that controls the operation of one of the source devices selected by the source device selection keyboard section, and in response to a signal supplied from the source device selection keyboard section or the operation control keyboard section. and a centralized control circuit unit that controls the source device, the operation control keyboard unit is commonly used for different source devices, and the central control circuit unit has a central control circuit unit that controls the source device selection keyboard unit. Therefore, when two or more source devices are selected at the same time, a specific source device is selected preferentially, and the operation for the signal supplied from the operation control keyboard section is performed according to the preferentially selected source device. The present invention provides a centralized control device that is characterized by making decisions.

[Example] Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a system component stereo central control device according to the present invention, which is composed of a central control circuit 1, an operation instruction circuit 2, a signal selector 3, and a keyboard 8. The central control circuit 1 is
A microprocessor such as a microcomputer configured with a CPU, ROM, RAM, etc., the operation instruction circuit 2 converts the digital output from the control circuit 1 into, for example, a decimal number, and outputs it to the tape recorder 4, record player 5, and AM tuner 6. , FM tuner 7, and other devices, and the microprocessor. The signal selector 3 controls the volume and sound quality of analog signals from each device using the digital output from the control circuit 1, and also selects signals from each device. keyboard 8
is an external selection device for the listener to give operation instructions to each device. The central control circuit 1 and the operation instruction circuit 2 constitute a central processing section 101, and the output from the signal selector 3 is sent to the amplifier 9 and speaker 10 for normal performance.

FIG. 2 shows an example of the key arrangement of the keyboard 3, in which 201, 202, 203, and 204 are selection keys for selecting the desired one among tape deck, record player, FM tuner, and tuner; 205; is the recording instruction key,
206 is a pause key, 207, 209 and 210
208 is a control key of the device, and 208 is a volume adjustment instruction key.

FIG. 3 is a flowchart showing an outline of the main routine of the control program by the centralized control circuit 1 of the system/component system according to the present invention.

FIG. 4 is a flowchart showing a subroutine for FM tuning among the above main routines.

FIG. 5 shows an example of a mechanism for controlling a tape recorder by the central processing section 101.
It shows the relationship between the central processing section 101 and the reel motor 505, the pinch roller solenoid 506, and the capstan motor 507, which are arranged in the bridge circuit composed of elements 501 to 504.

FIG. 6 shows an example of a mechanism for controlling a record player by the central processing section 101, in which an arm circuit motor 60 is arranged in a bridge circuit composed of elements 601 to 604.
5. Arm elevation plunger 606
It also shows the relationship between the record rotation motor 607 and the central processing section 101.

Figure 7 shows the FM tuner in the central processing section 1.
01, which shows the relationship between the central processing section 101 and a tuning motor 705 arranged in a bridge circuit constituted by elements 701 to 704.

Next, the functions of the above embodiment of the present invention will be explained in terms of its main flow.

When the power of the system is turned on, the central processing section 101 shown in FIG. 1 is started, and the main routine shown in FIG. 3 is activated (301 in FIG. 3). The main routine is an endless routine that waits for the listener to operate the keyboard 8 by constantly repeating a loop of judgments and commands as described below. First, keyboard 8
It is determined whether any of the selection keys 201 to 204 has been pressed (302 in the figure), and if it has not been pressed, the contents of the previous register B are read (303 in the figure), and the process advances to judgment 304 to determine whether the key has been pressed. If so, proceed directly to judgment 304. Note that during this main routine, register A means that when one or more of the selection keys 201 to 204 on the keyboard 8 is pressed, the central control circuit 1 selects the selection keys 201 to 204.
This is a register that temporarily stores a digital binary output pattern based on each on/off value of 04.

In judgment 304, it is determined whether A=1, and if A=1, after storing A in register B (307 in the figure), the program proceeds to the tape deck playback routine (308 in the figure) and returns to the beginning. If A=1, the process advances to decision 305. In judgment 305, A is 2≦A
Determine whether <4, and if 2≦A<4, A=
2 in register B (309, 31 in the figure).
0), the program proceeds to the player playback subroutine (311 in the figure) and returns to the beginning. If 2≦A<4, proceed to judgment 306 and judge whether 4≦A<7,
If 4≦A<7, A=4 is stored in register B (312, 313 in the figure), and the process proceeds to the FM tuning subroutine (314 in the figure) and returns to the beginning. If 4≦A<7, A=8 is stored in register B (315, 316 in the figure), the process proceeds to the AM tuning subroutine (317 in the figure), and returns to the beginning.

The four types of equipment are selected as described above, but by increasing the number of selection keys and increasing the number of judgments made in 304 to 306, it is easy to select equipment such as the television 11 shown by the dotted line.

Decisions 305 and 306 perform priority selection of keys on the software so that when two or more keys are pressed at the same time, the key corresponding to the higher bit is selected preferentially.

Next, the FM tuning subroutine shown in FIG. 4 will be explained.

When the subroutine is selected and started (401 in the figure), it is determined whether FM tuning was performed previously (402 in the figure), and if it is not tuned, muting is applied and the previous mechanism is canceled, and mutating is performed. is canceled and switched to FM, and the process proceeds to judgment 404. If tuning has been performed, the process directly advances to judgment 404. In step 404, while the control key 207 and the AIHA 210 are pressed, the tuning dial is moved to select a station (step 405 in the figure), and the determination step 404 is performed again.
If the button has not been pressed, the process advances to judgment 406. Judgment 40
In step 6, it is determined whether the flexible volume control key 208 is being pressed, and if it has been pressed, the process proceeds to judgment 407, and if it has not been pressed, the process proceeds to judgment 409. In judgment 407, control key 207 or 210
If it has not been pressed, the process returns to step 406, and if it has been pressed, the process returns to step 406 after increasing or decreasing the volume. In judgment 409, it is determined whether or not the recording instruction key 205 has been pressed, and if so, the process proceeds to a recording subroutine 410, and if it has not been pressed, the process returns to the main routine.

In the above description, the command 405 corresponds to, for example, instructing a player to select a song on a record, and in a deck, it corresponds to instructing a song selection operation on a tape. Therefore, subroutines for controlling other magnetic fields such as tapes and players can also be constructed in the same manner as this FM tuning subroutine. In addition, the sound quality can be adjusted by operating the control keys 207 and 210, the pause key 206, and the repeat key 2.
Optional routines can also be activated and easily incorporated by key operations such as 09. The volume and sound quality are controlled by central control circuit 1.
This is done by directly controlling the attenuator in the signal selector 3. Note that selection keys 201 to 210, etc. can also be detected using an interrupt routine.

Next, a mechanism for controlling the operation of each device by the main routine and subroutines incorporated in the centralized control circuit of the central processing section 101 will be explained with reference to FIGS. 5 and 6.

In the following explanation, it is assumed that all terminal potentials are controlled by the above-mentioned main routine and subroutine.

In FIG. 5, when a tape deck is designated with the keyboard 8, the terminal 508 of the central processing section becomes high potential, and the switch 51 with the coil 509 energized
The capstan motor 507 rotates by attracting the zero intercept. Further, the terminal 511 also becomes high potential, the pinch roller solenoid is pulled, and the tape is pressed against the capstan to start running the tape. When the pause key 206 is pressed, the potential of the terminal 511 decreases, the pinch roller is released from pressure, and the roller is stopped.
When fast forwarding or rewinding is specified using the keyboard 8, the terminal 513 or 514 becomes a high potential, and current flows from the element 501 to the reel motor 50.
5, the tape flows from element 504 or element 503 to reel motor 505 in the direction of element 502, and reel motor 505 rotates forward or reverse to fast-forward or rewind the tape.

In this embodiment, rewind is performed while the control key 207 is pressed, and fast forward is performed while the control key 210 is pressed.
After speaking, it will move to the playing state,
Of course, it is also possible to make the control keys 207, 210 latchable, and provide a separate stop key, performance key, etc. to release the latch of the control keys 207, 210. , or control key 2
Various other applications can be considered, such as a method of crossing the no-signal portion between songs by the number of times 07, 210 is pressed.

In FIG. 6, when the record player is specified on the keyboard 8, the terminal 608 becomes high potential.
The coil 609 is energized, attracting the switch 610, and the terminal 611 becomes high potential, and the record rotating motor 607 rotates via the switch 610 and the terminal 612, thereby rotating the turntable. Next, the terminal 613 becomes a high potential, and the element 616
is energized, operating the arm elevation plunger 606 to lift the arm from the armrest, then the terminal 615 becomes high potential, current flows in the arm rotation motor 605 in the direction from 601 to 604, and the arm moves forward. When the beginning of the first song is reached, the potential at the terminal 615 drops, the rotation of the arm stops, the arm lowers, and the record begins to play. When the pause key 206 is pressed, the terminal 613 becomes high potential again and enters the pause state. When the control key 207 or 210 is pressed, the terminal 613 first becomes a high potential, and after the arm is lifted, the terminal 614 or 615 becomes a high potential, and the arm rotation motor 605 is rotated in the reverse or forward direction to move the arm backward. Alternatively, it moves forward, detects the main text of the song, stops rotating, lowers the arm, and transitions to playing the record.

In the present invention, the arm is rotated while the control key 207 or 210 is pressed.
It is also possible to skip songs depending on the number of times 0 is pressed, using the software in the central control circuit 1.A separate display button is provided, which is associated with a specified song, and the button can be used to select the desired song. You may also choose by doing so.

A tuner 700 in FIG. 7 is an auto-search tuner configured to automatically receive radio waves from broadcasting stations in an optimal state. When the tuner 700 is specified on the keyboard 8, the terminal 710 of the central processing section becomes high potential, and the coil 706 is energized and attracts the section of the switch 707 to enter the tuning state. Control key 210 or 20
When 7 is pressed, the terminal 708 or 710 becomes a high potential, causing the tuning motor 705 to rotate forward or backward, making the tuning frequency higher or lower, and when the tuning is achieved, both the terminals 708 and 710 are set to a high potential or a low potential. By doing motor 7
Stop 05. In this embodiment, a frequency synthesis type tuning method is adopted, and when the control key 210 is pressed, the up counter is operated, and when the control key 207 is pressed, the down counter is operated. However, as with the tape recorder and record player described above, it is also possible to use a preset method in which adjacent songs are skipped as many times as the control key 207 or 210 is touched, and the next song is recorded. It is also possible to tune to a broadcasting station of a different frequency by changing the tuning frequency.

Note that it is convenient to have a configuration in which both the preset tuning method and the normal tuning method can be used in parallel. It is also possible to provide a button and select a channel by selecting the button.

[Effects of the Invention] As described above, in the present invention, it is possible to centrally control the source devices using the central control device. Furthermore, in the present invention, the keys for controlling the operations of the source devices on the keyboard are not provided separately for each source device, but rather, one key is used to control different operations depending on the source device. Assigned. Therefore,
The key arrangement on the keyboard can be simplified, the number of parts can be eliminated, and the keyboard can be made smaller.
Even if more than one source device is selected, one specific source device is selected preferentially, so malfunctions can be prevented.

[Brief explanation of the drawing]

Fig. 1 is an explanatory block diagram of a central control device according to the present invention, Fig. 2 is an explanation of a keyboard which is an external selection device, and Fig. 3 is a main routine of an embodiment of the central control of the present invention. Flowchart, Figure 4 shows the above main routine.
A flowchart of the FM tuning right subroutine, FIG. 5 is an explanatory diagram of the control mechanism of the tape recorder, FIG. 6 is an explanatory diagram of the control mechanism of the record player, and FIG. 7 is an explanatory diagram of the control mechanism of the tuner. 1... Centralized control circuit, 2... Operation instruction circuit, 3
...signal selector, 4...tape recorder,
5... Record player, 6... FM tuner, 7... AM tuner, 8... Keypod,
9...Amplifier, 10...Speaker, 11...TV, 101...Central processing section, 201...Tape recorder selection key, 202...Record player selection key, 203...FM tuner selection key, 204...AM Tuner selection key, 20
5... Recording instruction key, 206... Pause key, 2
07...Control key, 208...Volume adjustment key, 209...Repeat key, 210...Control key. Each frame in Figure 3 contains the following sentences. 301...Power is on. start. 302
...Did any of the selection keys be pressed? 303...
...Read previous register E and put it in register A. 304...A=1? 305...2≦A<4
mosquito. 306...4≦A<7? 307...Put A into register B. 308...Go to tape recorder playback routine. 309...A=2. 3
10... Put A into register B. 311...
Go to subroutine for record player. 312...
...A=4.313...Put A into register B. 314...Go to FM tuning subroutine. 315...A=8. 316...Put A into register B. 317...Go to AM tuning subroutine. Each frame in Figure 4 contains each sentence.
401...FM tuning starts. 402...
…Was it FM tuning before? 403... Mutating and canceling the previous mechanism and setting it to FM tuning state. 404...Is the control key pressed? 405...Move the tuning dial. 406...Is the volume adjustment key pressed? 407...Is the control key pressed? 408...Perform volume adjustment. 409...
Is the recording instruction key pressed? 410...Go to recording subroutine. 505...Reel motor,
506...Pinch roller solenoid, 507
... Capstan motor, 605 ... Arm rotation motor, 606 ... Arm elevation plunger, 607 ... Record rotation motor, 705 ... Tuning motor.

Claims (1)

[Claims] 1 A central control device that centrally controls a plurality of source devices, including a source device selection keyboard section for selecting one of the source devices, and one of the above sources selected by the source device selection keyboard section. an operation control keyboard unit that controls the operation of the source device; and a centralized control circuit unit that controls the source device in accordance with a signal supplied from the source device selection keyboard unit or the operation control keyboard unit; The operation control keyboard section is commonly used for the different source devices, and the central control circuit section is used to select a specific source device when two or more source devices are simultaneously selected by the source device selection keyboard section. What is claimed is: 1. A centralized control device, characterized in that it preferentially selects a source device, and determines an operation for a signal supplied from the operation control keyboard section in accordance with the preferentially selected source device.