JPH0469000A - Operating method for acoustic equipment - Google Patents

Abstract

PURPOSE:To use a single operating button for plural operations in common and to reduce the number of operating buttons by selecting read, write, delete of the operating state corresponding to the operating time of a selection means. CONSTITUTION:A control means 11 reads an operating state corresponding to a selection means 20 from a 1st or 2nd storage means 51 or 52 when an operating time of the selection means 20 is less than a 1st predetermined time being a comparatively short period of time, and writes the operating state set in an input means 31 to a storage area of a 2nd storage means 52 corresponding to the selection means 20 when the operating time is the 1st time or over and less than the end time. Moreover, when the operating time is the 2nd time or over and less than a 3rd time being a comparatively long period of time, the storage area of the 2nd storage means 51 corresponding to the selection means 20 is deleted and when the operating time is the 3rd time or over, all the storage contents in the 2nd storage means 52 are deleted. Thus, one operating button of the selection means 20 attains read, write and delete of the operating state. Then the number of operating buttons is reduced.

Description

[Detailed Description of the Invention] Overview Read operation of preset operating states and writing of operating states in audio equipment capable of storing multiple types of operating states, such as so-called preset equalizers and presettable sound field control devices. The preset operation and the erasure or initialization of part or all of the operating state preset by the user are determined based on the operation time of the selection means.

As a result, a plurality of functions can be assigned to a single operation button, the number of operation buttons can be reduced, the operation button can be made larger, and the operability and design can be improved.

INDUSTRIAL APPLICATION FIELD The present invention is suitably implemented in a so-called preset equalizer, a presettable sound field control device, etc., and relates to a method in which a user can perform multiple operations in addition to a predetermined operating state.

BACKGROUND TECHNOLOGY In an audio device capable of storing operating states set by a user, such as a preset equalizer or a presettable sound field control device, a typical conventional technology includes a read operation to select and read out stored contents, and a read operation to select and read out the stored contents. The device is configured to perform a writing operation of the operating state set by the user and an operation of erasing the written contents by operating respective dedicated buttons.

With the preset equalizer and presettable sound field control device, for users who do not want complicated adjustment operations,
A configuration is used in which a basic correction pattern (frequency characteristics in the case of an equalizer, reverberation characteristics in the case of a sound field M control device) is set by the manufacturer.

In such a configuration, as described above, an operating state that is preset without user's operation and an operating state that is set by user's operation are stored in separate storage areas, and when the user operates the selection button, In response to this, if the user has preset the operating state corresponding to the selection button, the preset operating state is read out, and if the operating state has not been preset by the user, the operation state is determined by the user's operation. It is configured to read out a preset operating state.

Therefore, in such a configuration, in order to read the operating state preset by the manufacturer, it is necessary to erase the operating state preset by the user. For this reason, it is necessary to provide an erase button, which is used relatively infrequently, together with the read-out button and the write button.

On the other hand, especially in audio equipment for cars, since device operations are often performed along with driving operations, improvements in operability are desired, and larger operation buttons are also being sought in order to improve design. ing. However, as the preset function and other functions become more multifunctional as described above, it is necessary to increase the number of operation buttons. For this reason, there has been a desire to reduce the number of operation buttons, especially in automotive audio equipment where panel space is often limited.

Problems to be Solved by the Invention However, as mentioned above, in the prior art, dedicated operation buttons are provided for each operation of reading, writing, and erasing, and it is difficult to reduce the number of operation buttons and increase the size of the buttons as described above. cannot respond to

An object of the present invention is to provide a method of operating an audio device that can reduce the number of operation buttons.

Means for Solving the Problems The present invention comprises a first storage means that stores a predetermined operating state, and a second storage means that can store a plurality of types of operating states set by a user in an input means. In response to the operation of the means, the control means selects and reads out the operating state stored in the second storage means, and when the operating state is not stored in the second storage means, the operating state is stored in the first storage means. In the method of operating an audio equipment, the operating state of the audio device is read out, and the read operating state is set in a reproducing means to reproduce sound, wherein the control means is operated with a selection means and a predetermined operating state is set for a relatively short operation time. If it is less than 1 hour,
The operating state corresponding to the operated selection means is read from the first or second storage means, and when the operation time is longer than the first time and less than the second time, the operating state is read from the input means. The set operating state is written in the storage area of the second storage means corresponding to the operated selection means, and the operation time is equal to or longer than the second time and less than a relatively long third time. At one time, erasing the storage area of the second storage means corresponding to the operated selection means, and when the operation time is longer than the third time, erasing all the storage contents of the second storage means. This is a method of operating an audio device characterized by:

Further, the present invention includes a first storage means that stores one or more predetermined operating states, and a second storage means that can store a plurality of types of operating states set by the user in the input means, and a selection means. A method for operating an audio device, wherein the control means selects and reads out an operating state stored in the second storage means in response to an operation, and sets the read operating state to a reproducing means to reproduce sound. , when the selection means is operated and the operation time is less than a relatively short predetermined first time, the control means:
The operating state corresponding to the operated selection means is read from the second storage means, and when the operation time is greater than or equal to the first time and less than the second time, the operation state set in the input means is read. writes the operating state in the storage area of the second storage means corresponding to the operated selection means, and when the operation time is longer than the second time and less than the relatively long third time, Writing the operating state stored in the corresponding storage area of the first storage means into a storage area of the second storage means corresponding to the operated selection means, and when the operation time is equal to or longer than the third time, , a method for operating an audio equipment, characterized in that the operating states stored in the corresponding storage areas of the first storage means are respectively written into all storage areas of the second storage means.

According to the present invention, the first storage means stores the operating state predetermined by the manufacturer or the like without any operation by the user, whereas the second storage means stores the operating state predetermined by the manufacturer or the like without any operation by the user. 2
Among the plurality of storage areas constituting the storage means, the operating state set by the user in the input means is stored in the storage area corresponding to the operation of the selection means.

The control means responds to the operation on the selection means, and when the selection means is operated for less than a relatively short predetermined first time period, the control means checks the storage area of the second storage means corresponding to the operated selection means. When the operating state is stored, the operating state is set in the reproduction means, and when the operating state is not stored in the storage area, the operating state stored in the first storage means is read out and reproduced. The means is set to perform sound reproduction, thus performing sound reproduction in the preset operating state.

Further, when the operation time of the selection means is equal to or longer than the first time and less than the second time, the input means sets data in the storage area of the second storage means corresponding to the operated selection means. Write the current operating status, and furthermore,
When the operation time is longer than the second time and less than the relatively long third time, the storage contents of only the storage area are erased. Further, the operation time may be the third
When the time has elapsed, all of the stored contents of the second storage means are erased.

Therefore, the operating state can be read, written, and erased by one operation button of the selection means, and the erasure is performed only on the storage contents of the storage area of the second storage means corresponding to the operated operation button. It is possible to select between erasing and erasing all of the stored contents of the second storage means.

Further, according to the present invention, the control means responds to an operation on the selection means, and when the selection means is operated for less than a relatively short predetermined first time, the control means controls a second selection means corresponding to the operated selection means. The operating state stored in the storage area of the storage means is read out and set in the reproduction means to reproduce sound.

Further, when the operation time of the selection means is equal to or longer than the first time and less than the second time, the input means sets data in the storage area of the second storage means corresponding to the operated selection means. Write the current operating status, and furthermore,
When the operation time is longer than the second time and less than the relatively long third time, the operating state stored in the corresponding storage area of the first storage means is stored in the storage area. writing, and when the operation time is longer than the third time, writing the operating states stored in the corresponding storage areas of the first storage means into all storage areas of the second storage means, respectively. .

Therefore, according to the present invention, the operating state can be read, written, and the operating state written by the user can be erased using one operation button of the selection means.

Embodiment FIG. 1 is a front view of a vehicle-mounted sound reproduction device 12 equipped with an equalizer 11 according to an embodiment of the present invention. This audio reproduction device 12 can reproduce compact discs and magnetic tape cassettes, and can also receive radio broadcasts. Therefore, the front plate 13
has a disc insertion hole 14 and a cassette insertion hole 15.
is formed, as well as a volume 16 for volume adjustment and a switch 17 for channel selection and song selection operations.
etc. are arranged.

The front panel 13 is also provided with an equalizer switch 20 that selects a frequency characteristic correction pattern as described later, and is also used to adjust the left-right balance of the volume, and is used to adjust the left and right balance of the volume. A volume 21, a mid-range volume 22 for adjusting the reinforcement or attenuation of the mid-range, and a common volume adjuster for adjusting the front and rear balance of the volume.
A treble volume volume 23 used for adjusting the enhancement or attenuation of the treble range is arranged.

The frequency characteristic correction pattern selected by operating the equalizer switch 20 and the volume controls 21 to 23, which are selection means, is displayed on a display device 24 realized by, for example, a fluorescent display tube.

The display device 24 can also display the reception frequency when receiving the radio broadcast, and can display the reproduction time and minutes when reproducing a compact disk or magnetic tape.

FIG. 2 is a block diagram showing the electrical configuration of the equalizer 11. The equalizer 11 includes an input operation section 3 that includes the equalizer switch 20 and volume controls 21 to 23.
In response to an input operation from line 1, a processing circuit 32, which is realized by a microcomputer or the like and is a control means,
a, 1 b, a switching signal is derived to the IC, and in response to this switching signal, an electronic volume VRa, which is a reproduction means,
VRb, VRc (1) tlE By changing the tX value, the frequency characteristics of the reproduced audio signal from the compact disc, magnetic tape cassette, etc. input from the input terminal 33 are corrected.

The volume controllers 21 to 23 generate a pulse every time they are rotated, for example, by 12 degrees, and the processing circuit 32 changes the correction amount by 2 dB each time this pulse is input.
It can be changed in 6 steps on the attenuation side, that is, within a range of ±12 dB.

The electronic volume VRa includes a plurality of resistance elements VRal, VRa2 .・-, a switch SL in which one contact is connected between the connection points of VRan and each of the resistance elements VRal to VRan, and the other contact is connected in common.
, S2. ..., Sn, . . . , and each switch S
1 to Sn are selectively conductive. The remaining electronic volumes VRb and VRC are similar to this electronic volume VRa,
It is composed of a plurality of resistance elements and switches.

The acoustic signal input to the input terminal 33 is transmitted through the input resistance R.
D to the non-inverting input terminal of the operational amplifier 34, and each of the electronic volumes VRa, VRb, VR
It is input to the inverting input terminal via c. Operational amplifier 34
The output is led out to the output terminal 35 and is negatively fed back via the feedback resistor RF.

A variable terminal VRaO of the electronic volume VRa is connected to a resonant circuit 39 composed of a semiconductor inductor 36, a capacitor 37, and the like. Further, the variable terminal VRbO of the electronic volume VRb is connected to the resonant circuit 40. Furthermore, the variable terminal VRcO of the electronic volume VRc is connected to an RC series circuit 44 consisting of a resistor 42 and a capacitor 43. For example, the resonant frequency of the resonant circuit 39 is 80 Hz, and the resonant frequency of the resonant circuit 41 is 1
kHz, and the cutoff frequency of the RC series circuit 44 is 10k.
It is Hz.

Therefore, by changing the resistance value of each electronic volume VRa to VRc, the level of the resonance signal input to the operational amplifier 34 is changed, and the frequency characteristics can be corrected to characteristic characteristics.

On the other hand, the processing circuit 32 includes a read-only memory (ROM) 51 as a first storage means and a rewritable memory (E2PROM) 52 as a second storage means. Equipped with 5 storage areas,
A predetermined frequency characteristic correction pattern, which will be described later, is stored. The rewritable memory 52 includes five storage areas corresponding to the five storage areas of the read-only memory 51, and stores correction patterns set by the user.

The processing circuit 32 corresponds to the set correction pattern,
Deriving a switching signal to the line 1a to IC,
Display data is created as described later, and displayed on the display device 24.
Outputs a drive signal to.

The display bag f24 has a display area A that displays the correction amount for the bass range (BASS), a display area B that displays the correction amount for the midrange (MID), and a display that displays the correction amount for the treble range (TREB). It is configured to include a region C and a display region E disposed between these display regions A to C. Each display area A-E has nine segments A1-A9; Bl-B
9; C1 to C9: D1 to D9; El to E9.

The processing circuit 32 creates display data for the low frequency range in response to the operations of the equalizer switch 20 and the low range volume control 21, and lights up the corresponding segment of the display area A based on the display data.

That is, when the bass range is to be enhanced by, for example, 12 to 10 dB, the segment A1 is lit, and when the bass range is to be boosted by 9 to 7 dB, the segment A2 is lit, and so on, segments corresponding to the correction amount are lit. remaining display area B,
Similarly to display area A, in C, segments corresponding to the amount of correction corresponding to the operation of the equalizer switch 20 and the volume control 22 or 23 are lit.

The processing circuit 32 also processes the display area A adjacent to the display area A.
, B are interpolated to create display data for the display area, and the corresponding segments are lit. Similarly, the average value of display data in display areas B and C adjacent to display area E is interpolated to create display data for display area E, and the corresponding segment is lit.

That is, for example, a correction pattern that emphasizes the bass and treble ranges stored in the read-only memory 51 is selected, and as shown in FIG. 3(2), the segment A3 is lit in the display area A, and the display When segment B5 is lit in area B and segment C3 is lit in display area C, segment D4 is lit in the display area, and segment E4 is lit in display area E.

FIG. 3 is a diagram for explaining basic correction patterns for frequency characteristics stored in each of the five storage areas of the read-only memory 51. In the read-only memory 51, there are a pattern in which the correction amount is flat as shown in FIG. 3(1), a pattern in which the bass and treble ranges are emphasized as shown in FIG. A pattern that emphasizes the low range shown in (3), a pattern that emphasizes the high range shown in Figure 3 (4), and a pattern that emphasizes the middle range shown in Figure 3 (5) are stored in advance. has been done.

Apart from such preset patterns, correction patterns set by the user are stored in the rewritable memory 52 as described above.

FIG. 4 is a flowchart for explaining the operation of one embodiment of the present invention of the equalizer 11 configured as described above. When the equalizer switch 20 is operated, the processing circuit 32 performs the equalizer switch 2 in step n1.
0 operation time T is measured, and in step n2, if the operation time T is an instantaneous operation of a relatively short predetermined first time W1, for example less than 2 seconds, the process moves to step n3.

In step n3, it is determined whether or not the correction amount of the pattern corresponding to the operation is stored in the rewritable memory 52. If so, in step n4, the correction amount is read out and the electronic volume VRa~ If not, the correction amount of the correction pattern corresponding to the operation is read from the read-only memory 51 in step n5, and the electronic volumes VRa to VRc are set, and the operation ends.

In this way, when the equalizer switch 20 is instantaneously operated, the correction amount preset by the user is read out in a predetermined order for each operation, and when the correction amount is not set, the correction amount shown in FIG. (1) to 3rd
Among the correction amounts preset by the manufacturer as shown in FIG. 5, the correction amount for the storage area corresponding to the operation is set.

In step n2, when the operation time T of the equalizer switch 20 is equal to or longer than the first time W1, the process moves to step n6, where it is determined whether or not the operation time T is a second time W2, for example, less than 10 seconds. If so, the process moves to step n7, and the processing circuit 32 transfers the correction amount set by the volume controls 21 to 23 of the input operation section 31 to the corresponding storage area of the rewritable memory 52 selected by the equalizer switch 20. In this way, the correction amount can be preset.

Furthermore, in step n6, when the operation time T of the equalizer switch 20 is equal to or longer than the second closing time W2, the process moves to step n8, and whether or not it is less than 20 seconds, which is the relatively long third time W3. If so, the stored contents of the storage area in the rewritable memory 52 selected by the equalizer switch 20 are erased in step n9.

Thereby, the next time this storage area is selected by instantaneous operation of the equalizer switch 2o, the correction amount for the corresponding storage area of the read-only memory 51 is automatically set.

Furthermore, in step n8, when the operation time T of the equalizer switch 20 is equal to or longer than the third time W3, the process moves to step nlo, and the rewritable memory 52
All memory contents inside will be erased.

Therefore, until a new write operation is performed on the rewritable memory 52, in response to the selection operation of the equalizer switch 20, the data in the read-only memory 51 shown in the above-mentioned Nos. 31J(1) to 3(5) are The correction amounts are sequentially set to the electronic volumes VRa to VRc.

Thus, in the equalizer 11 according to the present invention.

Since each operation of reading, writing, and erasing the correction amount is selected in accordance with the operation time T of the equalizer switch 20, a single equalizer switch 20 can be used in common for these selection operations. The number of operation buttons can be reduced. Therefore, the panel space of the front plate 13 can be effectively utilized, and the equalizer switch 20 can be made larger to improve operability and design.

In addition, the above-mentioned erasing operation erases the storage contents of only the storage area in the rewritable memory 52 selected by the operation of the equalizer switch 20 and the storage contents of the rewritable memory 52 in accordance with the operation time T of the equalizer switch 2°. Since all the stored contents can be selectively erased, all the stored contents in the rewritable memory 52 can be erased by one operation, and operability can be improved.

FIG. 5 is a flowchart for explaining another operation of the equalizer 11 according to the present invention; this embodiment is similar to the previous embodiment, and corresponding parts are given the same reference numerals.
The difference between this embodiment and the embodiment shown in FIG. 4 is that in the embodiment shown in FIG.
Based on the result of this determination, the correction amount is read out from a predetermined storage area in the rewritable memory 52 or in the read-only memory 51. In contrast to controlling whether or not to read the correction amount from a predetermined storage area (steps n2 to n5), in this embodiment, the correction amount is always read sequentially from a predetermined storage area in the rewritable memory 52. This is what I try to bring out (
Step n2. n4).

Therefore, in this embodiment, in the initial state, the rewritable memory 52 stores in advance the same amount of correction as the read-only memory 51 in its corresponding storage area, and the user can set the L fs IF conversion amount. When erasing the content (correction amount) in the rewritable memory 52, the content stored in the corresponding storage area of the read-only memory 51 is written to a predetermined storage area of the rewritable memory 52 (step n11, n12>.

As a result, when reading the correction amount, it is only necessary to always read the correction amount from the rewritable memory 52, so there is no need to judge whether or not the correction amount is stored in a predetermined area of the rewritable memory 52. According to the invention, in addition to the above-mentioned effects, there is an effect that the arithmetic processing of the processing circuit 32 can be simplified.

Effects of the Invention As described above, according to the present invention, reading, writing, and erasing of the operating state is selected in accordance with the operation time of the selection means, so that a single operation button can be shared for multiple operations. However, the number of scratched buttons can be reduced, and the design can be improved.

Furthermore, the erasure is performed in accordance with the operation time of the selection means.
Since we have divided into cases where only the storage contents of the storage area of the second storage means selected by the selection means are erased and cases where all the storage contents of the second storage means are erased, the second storage area can be erased by one operation. All of the memory contents of the means can be erased, and operability can be improved.

Further, according to the present invention, since the operation state written by the user stored in the second storage means is erased by writing the corresponding operation state stored in the first storage means, reading In some cases, it is sufficient to always read the operating state from a predetermined storage area of the second storage means, which eliminates the need to judge whether or not the correction amount is stored in the predetermined storage area of the second storage means, simplifying the process. can.

[Brief explanation of drawings]

FIG. 1 is a front view of a sound reproduction device 12 equipped with an equalizer 11 according to an embodiment of the present invention, FIG. 2 is a block diagram showing the electrical configuration of the equalizer 11, and FIG. 3 is a memory stored in a read-only memory 51. FIG. 4 is a flow chart for explaining the operation of one embodiment of the present invention, and FIG. 5 is a diagram for explaining one basic correction pattern of the frequency characteristics. It is a flowchart for explaining operation. 11... Equalizer, 12... Sound reproduction device, 20
...Equalizer switch, 21-23...Volume, 24...Display device, 31...Input operation section, 32.
...Processing circuit, 34...Operation amplifier, 39.41...
・Resonance circuit, 44...RC series circuit, 51.52...
Memory, AB, C1D, E--display area, V
Ra, VRb VRc...Electronic Volume Agent Patent Attorney Keibu Saikyo Figure Figure

Claims (2)

[Claims] (1) The first storage means stores a predetermined operating state, and the second storage means is capable of storing a plurality of types of operating states set by the user in the input means, and is controlled in response to the operation of the selection means. means selects and reads the operating state stored in the second storage means, and when no operating state is stored in the second storage means, reads the operating state stored in the first storage means; In a method of operating an audio equipment that reproduces sound by setting the operating state to the reproduction means,
The control means, when the selection means is operated and the operation time is less than a relatively short predetermined first time,
The operating state corresponding to the operated selection means is read from the first or second storage means, and when the operation time is longer than the first time and less than the second time, the operating state is read from the input means. The set operating state is written in the storage area of the second storage means corresponding to the operated selection means, and the operation time is equal to or longer than the second time and less than a relatively long third time. At one time, erasing the storage area of the second storage means corresponding to the operated selection means, and when the operation time is longer than the third time, erasing all the storage contents of the second storage means. A method of operating audio equipment characterized by: (2) The first storage means stores one or more predetermined operating states, and the second storage means is capable of storing a plurality of types of operating states set by the user in the input means, In response, the control means selects and reads out the operating state stored in the second storage means, and sets the read operating state in the reproducing means to reproduce sound, the method comprising: When the selection means is operated and the operation time is less than a relatively short predetermined first time, the control means:
reads the operating state corresponding to the operated selection means from the second storage means, the operation time is longer than the first time, and the second
If the operation time is less than the second time, the operating state set in the input means is written in the storage area of the second storage means corresponding to the operated selection means, and the operation time is longer than the second time, and when the time is less than a relatively long third time, the operating state stored in the corresponding storage area of the first storage means is written into the storage area of the second storage means corresponding to the operated selection means. , when the operation time is longer than the third time, the operating state stored in the corresponding storage area of the first storage means is written into all storage areas of the second storage means, respectively. How to operate the audio equipment.