JPH02273374A - Acoustic equipment with loading/unloading actuator - Google Patents

Abstract

PURPOSE:To facilitate the key operation for the input of the playing program data PD by sending this PD stored in a 1st storage means to a main body from an actuator when the actuator is connected to the main body, storing the PD in a 2nd storage means, and playing a compact disk CD based on the contents of the 2nd storage means. CONSTITUTION:An MPU 21 discriminates that an actuator is loaded to a main body and that a program PG is updated (flag F1 = 1). Thus the MPU 21 reads successively the disk and track numbers out of the storage area of a RAM 26 in response to a request signal for the transmission of a data signal from the main body and outputs those disk and track numbers as the data signals given from an input/output interface 22. These data signals are inputted to a RAM 16 via the input/output interface 12 of the main body, and the disk and track numbers are stored in the storage areas N1 - Nn. An MPU 11 decides that the actuator is loaded in the main body and reads the disk and track numbers out of the areas N1 - Nn with the playing request data signal to actuate a CD player 4.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to an audio device detachably coupled to an operating body or main body.

BACKGROUND ART In the case of in-vehicle audio equipment, installation locations are limited, so in many cases the equipment is not necessarily installed in a position that is easy to operate when the driver or passenger is seated.

Therefore, it is particularly difficult to operate when multiple key operations are required, such as when inputting a performance program indicating the performance order for program performance on a player such as a CD player or a tape player, which may lead to erroneous operation. There was a problem with that.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an audio device with a removable operating body that allows easy key operation for inputting a performance program.

The audio equipment of the present invention is an audio equipment in which an operating body is detachably connected to a main body, and the operating body includes a keyboard for inputting performance program data indicating a performance order, and input data is input by key operations on the keyboard. a first storage means for storing the performance program data stored in the first storage means, and a transfer means for transferring the performance program data stored in the first storage means to the main body when the operation body and the main body are coupled to each other; The main body is characterized by being provided with a second storage means for storing the transferred performance program data, and a performance means for playing the recording medium according to the stored contents of the second storage means.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an in-vehicle audio device according to the present invention. In this audio device, although not shown, an operating body is detachably provided on the front surface of the main body. The main body is held, for example, in an insertion opening formed in a dash board of an automobile. The main body side is provided with a cassette deck 1, a tuner 2, and a main body control circuit 3, and a so-called magazine-type CD player 4 that can load six CD discs at once.
It is now possible to connect. A keyboard 5, a display device 6, and an operating body control circuit 7 are provided on the operating body side. Although not shown on the keyboard 5, there are a program key, a program memory reset key, a stop key,
A plurality of keys such as a play key and number keys from O to 9 are provided. Further, when the operating body is attached to the main body, the control circuits 3 and 7 are electrically connected via a terminal (not shown).

The main body control circuit 3 includes a microprocessor 1 that performs digital arithmetic processing according to a program, an input/output interface 12, 13, and an RO in which a program is written in advance.
It consists of M15, RAM16, and a clock generator (not shown). Microprocessor 11, interface 12
．． 13, ROM 15 and RAM 16 are connected to each other by a bus. A cassette deck 1, a tuner 2, and a CD player 4 are connected to the interface 13.
These are controlled by a control circuit 3.

On the other hand, like the control circuit 3, the operating body control circuit 7 includes a microprocessor 21 that performs digital arithmetic processing according to a program, input/output interfaces 22 and 23, a ROM 25 and a RAM 26 in which a program is written in advance, and a clock generator (not shown). Microprocessor 21, ink-face 22, 23, ROM 25 and R
AM26 are connected to each other by a bus. A keyboard 5 and a display device 6 are connected to the ink face 23.

The interfaces 12 and 22 are communication interfaces, and the interface 12 on the main body side and the interface 22 on the operating body side are connected via the above-mentioned terminals by data signal and control signal lines.

Also, when the operating body is attached to the main body, the switch 2 turns on and supplies ground potential to the input/output interface 13.
7 is provided on the main body side. The output of this switch 27 is also supplied to the input/output interface 23 of the operating body via the above-mentioned terminal.

Note that the operating body has a built-in battery (not shown), which is used as a power source when the operating body is removed from the main body.

When the operating body is attached to the main body, the operating body is supplied with the voltage of the main body power supply (not shown) supplied from the main body through the above-mentioned terminal, and the control circuit 7 is operated by that voltage.
In addition, on the operating body side of the audio equipment where the built-in battery is charged by the voltage, the RAM
26, as shown in FIG. 2, there are storage areas Ml to Mn (n
There are several areas. A disc number and a track number are stored in each storage area, and the disc number and track number can be written in the storage areas M1 to Mn in step order in the program mode.

Note that the memory contents of memory areas M1 to M are stored on the keyboard 5.
Cleared by operating the clear key.

When the program key on the keyboard 5 is operated, the microprocessor 21 shifts the operating mode to the program mode. In this program mode, as shown in FIG. 3, first, step number Interface 2 for inputting and outputting display data to device 6
3 (step 32), and requests input of the disc number (step 33). The disc number input request is made, for example, by displaying "Disc number?" on the display screen of the display device 6.

Thereafter, it is determined whether or not the number keys were pressed manually (step 34). If the numeric keys are available, the numeric code indicating the operating numeric keys supplied from the keyboard 5 is read as the disk number D nev (step 35).
It is determined whether the read disc number Dnew is a number from "1" to "6" (step 36).

If the disc number D new is a number other than "1" to "6", the read numerical code is ignored and the process returns to step 33 to request the disc number manually again. Numeric code or “1”
If it is one of the numbers "6" to "6", the track number input is requested (step 37), and it is determined whether a numeric key input has been made (step 38).

The track number input request is made, for example, by displaying "Track number?" on the display screen of the display device 6. If the numeric keys are available, the numeric code indicating the operating numeric keys supplied from the keyboard 5 is read as the track number T neW (step 39). After step 39 is executed, or if the number keys are not pressed manually in step 38, it is determined whether the program memory key of the keyboard 5 has been operated (step 40). If the program memory key has been operated, it is determined whether a flag F1 indicating that the program data has been updated is equal to O (step 41).

In the case of F+ -0, the program data has not been updated in the current process, so the already stored disk number D old and track number Told are read out as Dold and T old from the storage area Mx of the RAM 26 (step 42). ) is compared with the currently input disc number D new and track number T new (step 43). Dold≠Dnew or Told
If ≠T ncv, the disk number D entered this time
new and the track number T new are different from the previously stored data, so the read disc number D new and track number T new are written in the storage area Mx (step 44), and a flag F indicating that the program data has been updated is written. is set to 1 (step 45).

In addition, Dold≠D new or Told #Tnew
In this case, in step 44, all storage areas Mx to M41 are erased before new writing.

If F+ -1 in step 41, the program data has already been updated in this process, so
Immediately write the read disc number Dnew and track number Tnew into the storage area Mx (step 4
6).

After executing step 45 or step 46, add 1 to the step number X (step 47), and determine whether the step number If so, the process moves to step 32 and the above operation is repeated. If X>n, this routine, that is, the program mode is ended.

In step 43, Dold = Dnev and Tol
If d = Tnew, the disk number D input this time
The process proceeds to step 47 without writing nf3W and track number T new.

If there is no human power to press the number keys in step 34, it is determined whether or not the stop key has been operated (step 50).
). If the stop key is not operated, step 3
Returning to step 4, if the stop key is operated, this routine ends.

In step 38, if there is no human power to press the number keys, it is determined whether or not the reset key has been operated (step 51).
). If the reset key has been operated, the process returns to step 33, and if the reset key has not been operated, it is determined whether or not the stop key has been operated (step 52). If the stop key has not been operated, the process returns to step 38, and if the stop key has been operated, this routine ends.

If the program memory key is not operated manually in step 40, it is determined whether or not the reset key has been operated (
Step 53). If the reset key has been operated, the process returns to step 37, and if the reset key has not been operated, it is determined whether or not the stop key has been operated (step 54). If the stop key has not been operated, the process returns to step 4°, and if the stop key has been operated, this routine ends.

Note that when a number key is operated, the number indicated by the number key is displayed on the display screen of the display device 6.

Furthermore, when this routine is ended, the display on the display device 6 is erased.

Furthermore, the microprocessor 21 determines whether or not the operating body is attached to the main body at predetermined intervals as shown in FIG. 4 (step 61). This is because when the operating body is attached to the main body, the switch 27 is turned on and ground potential is supplied from the main body to the interface 23.
The determination is made based on whether or not the ground potential is supplied from 7.

If the operating body is attached to the main body, flag F1 is 1.
It is determined whether the value is equal to (step 62). Fl-0
If so, the disk number D new and track number T new in the storage areas M1 to Mn of the RAM 26 have not been updated, so this routine ends. On the other hand, in the case of Fl-1, since the disk number D new and track number T new in the storage areas M1 to M of the RAM 26 have been updated, it is ready to notify the main unit that there is program data to be sent. A signal is output (step 63). After outputting the ready signal, it is determined whether a request signal for requesting transmission of a data signal has been supplied from the main body (step 64). When the request signal is supplied from the main body, the memory area Ml of the RAM 26
- The disc number and track number are read from Mo in order and outputted as a data signal from the input/output interface 22 (step 65). After outputting the data signal, the flag F1 is reset to 0 (step 66
).

On the other hand, on the main body side of the audio equipment, R
Storage areas N1 to N similar to storage areas M1 to Mo formed in AM26 are formed. A disc number and a track number are stored in each storage area N1 to Nn.

The microprocessor 11 determines at predetermined intervals whether or not the operating body is attached to the main body as shown in FIG. 5 (step 71). This is because when the operating body is attached to the main body, the switch 27 is turned on and the ground potential is supplied to the interface 13, so the determination is made based on whether or not the ground potential is being supplied from the switch 27. If it is determined that the operating body is attached to the main body, it is determined whether a ready signal is being supplied (step 72).

When the ready signal is supplied, a request signal is immediately outputted to the operating body to notify that the performance request data signal is accepted (step 73), and the performance request data signal is inputted (step 74).
). For example, from the operating body, all the data stored in the storage area is first read as a start code, followed by the disk number and track number of storage area M1, and then the disk number and track number of storage area M2. The data is read out to the storage area, and finally a stop code is sent out. Therefore, the microprocessor 11 writes the disk number and track number starting from N1 into the storage area of the RAM 16 of the main body in the order in which they are sent in the input operation of the performance request data signal.

On the other hand, when the play key to start the play of the CD player 4 is operated, when a command data signal indicating the operation of the play key is transmitted from the operating body to the main body, the microprocessor 11 sequentially starts from the storage area N. The disc number and track number are read out, and the CD player 4 is controlled according to the read disc number and track number. For example, if the disc number in the storage area N1 is "3" and the track number is "5", the CD player 4 is caused to select the third disc and start playing the fifth track. When the performance is finished, the CD player 4 starts playing in the same manner in the order of storage areas N2N3, . . . in accordance with the disc number and track number of the storage area.

In the above-mentioned embodiment, a case has been described in which a performance program of a CD player is input by key operation with the operating body removed from the main body, but the same applies to the case of inputting a performance program of a cassette tape deck by key operation. It will be held in

Further, in the above-described embodiment, when the storage contents of the RAM 26 as the first storage means change, the change command signal is generated by setting the flag F1 equal to 1. By setting the value equal to 1, a change command signal may be generated and the program data may be transferred to the main body.

Furthermore, if F1=1 when the operating body is connected to the main body, a ready signal is generated in the operating body and is supplied to the main body to notify that the program data has been updated, but if the flag F1 is equal to 1? If the microprocessor 11 of the main body determines whether the flag is Fl-1, the program data may be read from the RAM 26.

Effects of the Invention As described above, in the audio equipment with a removable operating body according to the present invention, the operating body is detachably connected to the main body, and the operating body side receives performance program data input by keystrokes on the keyboard of the operating body. A first storage means for storing is provided, and the performance program data stored in the first storage means is transferred from the operating body to the main body by the transfer means when the operating body and the main body are coupled. In the main body, the transferred performance program data is stored in the second storage means, and the recording medium is played according to the stored contents. Therefore, the operating body can be removed from the main body and the keys for inputting performance program data can be operated at hand, so even when multiple key operations are required, the operation does not become difficult and erroneous operations can be avoided. can. Further, if the performance program data is transferred only when the stored content of the first storage means, that is, the performance program data changes when the main body and the operating body are connected, the generation of noise accompanying data communication can be suppressed. For example, it is possible to avoid contamination with an in-vehicle engine control device, a receive signal line of a tuner, etc.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing a storage area formed in the RAM of the operating body, and FIGS. 3 and 4 are flowcharts showing the operation of the microprocessor of the operating body. FIG. 5 is a flowchart showing the operation of the main body's microprocessor. Explanation of symbols for main parts 1...Cassette deck 2...Tuner 3.7...Control circuit 4...CD player Applicant: Pioneer Corporation

Claims (1)

[Scope of Claims] (1) An audio device in which an operating body is detachably connected to a main body, the operating body including a keyboard for inputting performance program data indicating a performance order, and a keyboard for inputting performance program data indicating a performance order; a first storage means for storing performance program data input by key operations, and the performance program data stored in the first storage means is provided in the operating body and the main body when the operating body and the main body are coupled. A transfer means for transferring to the main body is provided, and the main body is provided with a second storage means for storing the transferred performance program data, and a performance means for playing the recording medium according to the stored contents of the second storage means. Audio equipment featuring: (2) The operating body includes a change command signal generating means for generating a program change command signal, the first storage means stores the change command signal, and the transfer means responds to the change command signal. 2. The audio equipment according to claim 1, wherein said performance program data is transferred only to said performance program data. (3) The audio equipment according to claim 2, wherein the change command signal generating means generates the change command signal in response to a change command operation. (4) The change command signal generating means generates the change command signal when there is a change in the performance program data stored in the first storage means.
The audio equipment listed.