JPH0685600B2 - How to operate audio equipment - Google Patents

Description

[Detailed Description of the Invention] Overview In an audio device capable of storing a plurality of operation states such as a so-called preset equalizer and a presettable sound field control device, a read operation of the preset operation state and an operation state are written. The preset operation and erasing or initializing a part or all of the operating state preset by the user are determined based on the operating time of the selecting means.

Thereby, a plurality of functions are assigned to a single operation button, the number of operation buttons is eliminated, the operation buttons can be upsized, and operability and design are improved.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is preferably implemented in a so-called presetting equalizer, a presettable sound field control device, or the like, and an audio device in which a user can set a plurality of operating states in addition to a predetermined operating state. Regarding the operation method of.

2. Description of the Related Art In an audio device capable of storing an operation state set by a user, such as a presetting equalizer or a sound field control device capable of presetting, a typical conventional technique is a read operation of selecting and reading a stored content, The operation state write operation set by the user and the written content erase operation are executed by dedicated button operations.

In the sound field control device capable of presetting the equalizer or presetting, for a user who does not want a complicated adjusting operation,
A configuration is used in which the manufacturer sets a basic correction pattern (frequency characteristic in the case of an equalizer, reverberation characteristic in the case of a sound field control device).

In such a configuration, as described above, the preset operating state without the user's operation and the operating state set by the user's operation are stored in separate storage areas, and the user's selection button is pressed. In response to the operation of, when the user presets the operating state corresponding to the selection button, the preset operating state is read, and when the operating state is not preset by the user, It is configured to read the preset operating state without any operation.

Therefore, in such a configuration, it is necessary for the user to erase the preset operating state in order to read the preset operating state on the manufacturer side. Therefore, it is necessary to provide an erase button, which is used relatively infrequently, together with a read button and a write button.

On the other hand, especially in car audio equipment, equipment operation is often performed together with driving operation, so improvement of operability is desired, and operation buttons are also made larger in terms of design improvement. ing. However, it is necessary to increase the number of operation buttons in accordance with the multi-functionalization such as the preset function as described above. For this reason, it has been particularly desired to reduce the number of operation buttons in the on-vehicle audio equipment, which has a lot of panel space restrictions.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, as described above, in the conventional technique, a dedicated operation button is provided for each operation of reading, writing, and erasing, and thus the number of operation buttons is reduced and the size is increased as described above. Can not correspond 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 Problem The present invention comprises a first storage means for storing a predetermined operation state and a second storage means capable of storing a plurality of types of operation states set by an input means by a user. In response to the operation of the means, the control means selects and reads the operating state stored in the second storage means, and when the operating state is not stored in the second storage means, the control state is stored in the first storage means. In a method of operating an audio device that reads out an operating state that is being set, sets the read operating state in a reproducing unit, and performs sound reproduction, the control unit is configured such that the selecting unit is operated and the operating time is relatively short. When less than 1 hour,
An operation state corresponding to the operated selection means is read from the first or second storage means, and the operation time is equal to or longer than the first time, and the second
When it is less than the time of, the operating state set in the input unit is written in the storage area of the second storage unit corresponding to the operated selection unit, and the operation time is the second time or more, When the operation time is less than the third time, which is relatively long, the storage area of the second storage means corresponding to the operated selection means is erased, and when the operation time is the third time or more, the second operation It is a method of operating an audio device, characterized in that all of the stored contents of the storage means are erased.

Further, the present invention comprises a first storage means for storing one or a plurality of predetermined operation states, and a second storage means capable of storing a plurality of types of operation states set by the user in the input means. A method for operating an audio device, in which the control means selects and reads out an operation state stored in the second storage means in response to an operation, sets the read operation state in the reproduction means, and performs sound reproduction. When the selection means is operated and the operation time is less than a predetermined first time, which is relatively short,
The operation state corresponding to the operated selection unit is read from the second storage unit, the operation time is equal to or longer than the first time, and the second
When it is less than the time of, the operating state set in the input unit is written in the storage area of the second storage unit corresponding to the operated selection unit, and the operation time is the second time or more, When it is less than the relatively long third time, the operating state stored in the corresponding storage area of the first storage means is written in the storage area of the second storage means corresponding to the operated selecting means. When the operation time is equal to or longer than the third time, the operating states stored in the corresponding storage areas of the first storage means are written in all the storage areas of the second storage means. It is a method of operating the audio equipment.

Action According to the present invention, the first storage means stores the operation state predetermined by the manufacturer without operation by the user, whereas the second storage means stores the second operation state.
The operation state set by the user in the input unit is stored in the storage region corresponding to the operation of the selection unit among the plurality of storage regions forming the storage unit.

The control means, in response to the operation to the selecting means, confirms the storage area of the second storing means corresponding to the operated selecting means when the selecting means is operated for less than a predetermined first time which is relatively short. However, when the operating state is stored, the operating state is set in the reproducing means, and when the operating state is not stored in the storage area, the operating state stored in the first storing means is read out, and is stored in the reproducing means. Set and play sound. Thus, sound reproduction is performed in the preset operating state.

When the operating time of the selecting means is equal to or longer than the first time and less than the second time, the input means is set in the storage area of the second storing means corresponding to the operated selecting means. Write the operating status that is being written. Furthermore,
When the operation time is the second time or more and is less than the relatively long third time, the stored contents of only the storage area are erased. In addition, the operation time is the third
When the time is longer than, all the contents stored in the second storage means are erased.

Therefore, the operating state can be read, written, and erased by one operating button of the selecting means, and the erasing can be performed in the storage area of the second storage means corresponding to the operated operating button. It is possible to selectively erase only the stored contents and erase all the stored contents of the second storage means.

According to the invention, the control means is responsive to the operation to the selecting means, and when the selecting means is operated for less than the predetermined first time which is relatively short, the second means corresponding to the operated selecting means. The operation state stored in the storage area of the storage means is read out and set in the reproduction means to perform sound reproduction.

When the operating time of the selecting means is equal to or longer than the first time and less than the second time, the input means is set in the storage area of the second storing means corresponding to the operated selecting means. Write the operating status that is being written. Furthermore,
When the operation time is the second time or more and is 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. Write. In addition, the operation time is the third
When the time is longer than, the operating states stored in the corresponding storage areas of the first storage means are written in all the storage areas of the second storage means.

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

Embodiment FIG. 1 is a front view of a vehicle-mounted sound reproducing device 12 equipped with an equalizer 11 according to an embodiment of the present invention. The sound reproducing device 12 can reproduce a compact disc and a magnetic tape cassette, and can also receive a radio broadcast. Therefore, the front plate 13 is provided with a disk insertion hole 14 and a cassette insertion hole 15, a volume 16 for adjusting the volume, and a switch 17 for tuning and selecting music. There is.

The front plate 13 is also provided with an equalizer switch 20 for selecting a correction pattern of frequency characteristics as described later, and is also used for adjusting the left-right balance of the sound volume and is used for enhancing or attenuating the low range. Volume 21
A midrange volume 22 for enhancing or attenuating the midrange, and a high range volume 23 commonly used for adjusting the front and rear balance of the volume and used for enhancing or attenuating the high range are arranged.

The correction pattern of the frequency characteristic selected by the operation of the equalizer switch 20 and the volumes 21 to 23 as the selection means is displayed on the display device 24 realized by a fluorescent display tube or the like. The display device 24 can also display a reception frequency when receiving the radio broadcast and a reproduction time and the like when reproducing a compact disk or a magnetic tape.

FIG. 2 is a block diagram showing the electrical configuration of the equalizer 11. The equalizer 11 is realized by a microcomputer or the like in response to an input operation from the input operation unit 31 including the equalizer switch 20 and the volumes 21 to 23, and the processing circuit 32 as a control means has a line la, lb, A switching signal is derived to lc, and in response to this switching signal, the resistance value of the electronic volume VRa, VRb, VRc that is the reproducing means changes. Corrects the frequency characteristics of reproduced audio signals such as tape cassettes.

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

In the electronic volume VRa, one contact is connected between the plurality of resistance elements VRa1, VRa2, ..., VRan connected in series with each other and the connection points of the resistance elements VRa1 to VRan, and the other contact is commonly connected. , Sn _{+ 1,} and the switches S1 to Sn _{+ 1} are selectively turned on in response to a switching signal via the line la. Residual electronic volume
VRb and VRc are composed of a plurality of resistance elements and switches, like the electronic volume VRa.

The acoustic signal input to the input terminal 33 is applied to the non-inverting input terminal of the operational amplifier 34 via the input resistor RD, and is also input to the inverting input terminal via the electronic regulators VRa, VRb, VRc. . The output of the operational amplifier 34 is the output terminal 35.
And is fed back negatively via the feedback resistor RF.

The variable terminal VRa0 of the electronic volume VRa is the semiconductor inductor 3
It is connected to a resonance circuit 39 composed of 6 and a capacitor 37. Also, the variable terminal VRb0 of the electronic volume VRb is
It is connected to the resonance circuit 40. Furthermore, electronic volume VR
The variable terminal VRc0 of c is connected to an RC series circuit 44 including a resistor 42 and a capacitor 43. For example, the resonance frequency of the resonance circuit 39 is 80 Hz, the resonance frequency of the resonance circuit 41 is 1 kHz, and the cutoff frequency of the RC series circuit 44 is 10 kHz.
Is.

Therefore, by changing the resistance values of the electronic regulators VRa to VRc, the resonance signal level input to the operational amplifier 34 changes, and the frequency characteristic can be corrected to a desired characteristic.

On the other hand, in the processing circuit 32, a read-only memory (ROM) 51 as a first storage means and a rewritable memory (E ² PROM) 52 as a second storage means are built in, and the read-only memory is provided. Reference numeral 51 has five storage areas, and stores a correction pattern of a predetermined frequency characteristic as described later. The rewritable memory 52 has five storage areas corresponding to the five storage areas of the read-only memory 51, and stores the correction pattern set by the user.

The processing circuit 32 derives a switching signal to the lines la to lc corresponding to the set correction pattern, creates display data as described later, and outputs a drive signal to the display device 24.

The display device 24 has a display area A for displaying a correction amount in a bass range (BASS), a display area B for displaying a correction amount for a middle range (MID), and a display area for displaying a correction amount in a treble range (TREB). Area C and a display area arranged between these display areas A to C
It is configured to include D and E. Each display area A to E is
9 segments A1-A9; B1-B9; C1-C9; D1-D9-; E1-
Composed of E9.

The processing circuit 32 responds to the operation of the equalizer switch 20 and the low-pass volume 21 to create display data in the low-pitched sound range, and lights the corresponding segment of the display area A based on the display data. That is, the bass range is set to 12
When boosting by ~ 10dB, turn on segment A1, 9 ~ 7d
When increasing B, the segment A2 is turned on, and the segment corresponding to the correction amount is turned on. In the remaining display areas B and C, similarly to the display area A, the segments of the correction amount corresponding to the operation of the equalizer switch 20 and the volume 22 or 23 are turned on.

In addition, the processing circuit 32 displays the display areas A and B adjacent to the display area D.
The average value of the display data of (1) is interpolated to create the display data of the display area D, and the corresponding segment is turned on. Similarly, the average value of the display data of the display areas B and C adjacent to the display area E is interpolated to create the display data of the display area E, and the corresponding segment is turned on.

That is, for example, a correction pattern for emphasizing the low tone range and the high tone range stored in the read-only memory 51 is selected, and as shown in FIG. 3 (2), the segment A3 is lit and displayed in the display area A. In area B, segment B5
Is lit and the segment C3 is lit in the display area C, the segment D4 is lit in the display area D,
In the display area E, the segment E4 is illuminated.

FIG. 3 is a diagram for explaining a basic correction pattern of the frequency characteristic stored in each of the five storage areas of the read-only memory 51. In the read-only memory 51, a pattern having a flat correction amount shown in FIG. 3 (1), a pattern emphasizing the low range and high range shown in FIG. 3 (2), and FIG. A pattern in which the low range shown in (3) is emphasized, a pattern in which the high range shown in FIG. 3 (4) is emphasized, and a pattern in which the middle range shown in FIG. 3 (5) is emphasized are stored in advance. Has been done. In addition to such a preset pattern, the rewritable memory 52 stores the correction pattern set by the user as described above.

FIG. 4 is a flow chart for explaining the operation of the embodiment of the present invention of the equalizer 11 configured as described above. When the equalizer switch 20 is operated, the processing circuit
Reference numeral 32 is a step n1, which measures the operation time T of the equalizer switch 20, and step n2 is a step n3 when the operation time T is a relatively short predetermined first time W1, for example, an instantaneous operation of less than 2 seconds. Move on to.

At step n3, it is judged whether or not the correction amount of the pattern corresponding to the operation is stored in the rewritable memory 52, and if so, at step n4, the correction amount is read to read the electronic volume VRa. If it is not set to VRc, otherwise, in step n5, the correction amount of the correction pattern corresponding to the operation is read from the read-only memory 51, set in the electronic volumes VRa to VRc, and the operation is ended.

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

In step n2, when the operation time T of the equalizer switch 20 is the first time W1 or more, the step n2 is executed.
Moving to n6, the operation time T is the second time W2, for example, 10
If it is less than a second, it is determined, and if so, the process moves to step n7, where the processing circuit 32 adjusts the volume of the input operation unit 31.
The correction amount set by 21 to 23 is written in 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 time W2, the process proceeds to step n8, and it is determined whether it is a relatively long third time W3, which is less than 20 seconds. If so, in step n9, the stored contents of the storage area in the rewritable memory 52 selected by the equalizer switch 20 are erased.

As a result, when this storage area is next selected by the instantaneous operation of the equalizer switch 20, the correction amount of 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 n10, and all the contents stored in the rewritable memory 52 are erased.

Therefore, in response to the selection operation of the equalizer switch 20, the read-only memory shown in FIG. 3 (1) to FIG. 3 (5) until a new write operation is performed in the rewritable memory 52. The correction amount in 51 is adjusted in sequence to the electronic volume VRa.
~ Set to VRc.

As described above, in the equalizer 11 according to the present invention, the operations of reading, writing, and erasing the correction amount are selected according to the operation time T of the equalizer switch 20,
The single equalizer switch 20 can be shared for these selection operations, and 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
The operability and the design can be improved by enlarging the size.

Further, the erase operation corresponds to the operation time T of the equalizer switch 20 and the stored contents of only the storage area in the rewritable memory 52 selected by the operation of the equalizer switch 20 and the rewritable memory 52. Since all of the stored contents can be selected and erased, all stored contents in the rewritable memory 52 can be erased by one operation, and operability can be improved.

FIG. 5 is a flow chart for explaining another operation of the equalizer 11 according to the present invention. This embodiment is similar to the above-mentioned embodiment, and corresponding portions bear the same reference numerals. The difference between this embodiment and the embodiment shown in FIG.
In the illustrated embodiment, when reading the correction amount, it is determined whether or not the correction amount is stored in the storage area in the rewritable memory 52 corresponding to the operation of the equalizer switch 20, and based on this determination result. , The correction amount is read from a predetermined storage area in the rewritable memory 52, or the read-only memory 51
In contrast to the control of whether to read the correction amount from a predetermined storage area in the memory (steps n2 to n5), in the present embodiment, the correction amount is always sequentially read from the predetermined storage area in the rewritable memory 52. Is read out (steps n2, n
Four).

Therefore, in the present embodiment, in the initial state, the rewritable memory 52 is also stored in advance with the same amount of correction as that of the read-only memory 51 in the corresponding storage areas, and the rewritable memory set by the user is set. When erasing the contents (correction amount) in 52, the contents stored in the corresponding storage area of the read-only memory 51 are written in a predetermined storage area of the rewritable memory 52 (steps n11, n1).
2).

As a result, when the correction amount is read, it is only necessary to read the correction amount from the rewritable memory 52, and it is not necessary to determine whether the correction amount is stored in the predetermined area of the rewritable memory 52. According to the present invention, in addition to the above effects, there is an effect that the arithmetic processing of the processing circuit 32 can be simplified.

As described above, according to the present invention, the reading, writing, and erasing of the operating state is selected according to the operating time of the selecting means, so that a single operating button is shared by a plurality of operations. However, the number of operation buttons can be reduced, and the design can be improved.

Further, the erasing corresponds to the operation time of the selecting means,
Since it is divided into a case of erasing only the storage content of the storage area of the second storage means selected by the selection means and a case of erasing all the storage content of the second storage means, it is (2) All the stored contents of the storage unit can be erased, and the operability can be improved.

Further, according to the present invention, since the erasing of the operating state written by the user stored in the second storage means is performed by writing the corresponding operating state stored in the first storage means,
At the time of reading, it is sufficient to always read the operating state from the predetermined storage area of the second storage means, and therefore it is not necessary to determine whether the correction amount is stored in the predetermined storage area of the second storage means, and the processing is performed. Can be simplified.

[Brief description of drawings]

FIG. 1 is a front view of a sound reproducing device 12 equipped with an equalizer 11 according to an embodiment of the present invention, FIG. 2 is a block diagram showing an electrical configuration of the equalizer 11, and FIG. 3 is 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 another embodiment of the present invention. It is a flow chart for explaining operation. 11 ... Equalizer, 12 ... Sound reproduction device, 20 ... Equalizer switch, 21-23 ... Volume, 24 ... Display device, 31 ... Input operation part, 32 ... Processing circuit, 34 ... Operational amplifier, 39, 41 ... Resonance circuit, 44 … RC series circuit, 51, 52… Memory, A, B, C, D, E… Display area, VRa, VRb, VRc… Electronic volume

Claims (2)

[Claims] 1. A first storage means for storing a predetermined operation state, and a second storage means capable of storing a plurality of operation states set by a user in the input means, and responding to an operation of the selection means. Control means selects and reads the operating state stored in the second storage means, and reads the operating state stored in the first storage means when the operating state is not stored in the second storage means. In the method for operating an audio device in which the read operation state is set in the reproduction means to perform sound reproduction, the control means operates the selection means, and the operation time is relatively short and is less than a predetermined first time. Sometimes
An operation state corresponding to the operated selection means is read from the first or second storage means, and the operation time is equal to or longer than the first time, and the second
When it is less than the time of, the operating state set in the input unit is written in the storage area of the second storage unit corresponding to the operated selection unit, and the operation time is the second time or more, When the operation time is less than the third time, which is relatively long, the storage area of the second storage means corresponding to the operated selection means is erased, and when the operation time is the third time or more, the second operation A method for operating an audio device, comprising erasing all of the stored contents of a storage means. 2. A first storage means for storing one or a plurality of predetermined operation states, and a second storage means for storing a plurality of types of operation states set by a user in the input means.
In response to the operation of the selection means, the control means selects and reads out the operation state stored in the second storage means, sets the read operation state in the reproduction means, and performs the acoustic reproduction. The control means, when the selecting means is operated and the operation time is less than a predetermined first time which is relatively short,
The operation state corresponding to the operated selection unit is read from the second storage unit, the operation time is equal to or longer than the first time, and the second
When it is less than the time of, the operating state set in the input unit is written in the storage area of the second storage unit corresponding to the operated selection unit, and the operation time is the second time or more, When it is less than the relatively long third time, the operating state stored in the corresponding storage area of the first storage means is written in the storage area of the second storage means corresponding to the operated selecting means. When the operation time is equal to or longer than the third time, the operating states stored in the corresponding storage areas of the first storage means are written in all the storage areas of the second storage means. And how to operate the audio equipment.