JP5909720B2 - Interface device - Google Patents

Description

  The present invention relates to an interface device.

  Conventionally, an interface device including an input unit that receives a pressing operation, a display unit that displays an image, and a sound source unit that generates a sound for notification has been provided (for example, see Patent Document 1).

  Further, an interface device is provided that includes a main control unit that controls the display unit, and a sub-control unit that inputs an electric signal corresponding to a pressing operation to the input unit to the main control unit and controls the sound source unit.

  In the above interface device, the operation of the display unit and the main control unit is stopped unless the input unit is pushed for a certain long time. Thereafter, when any pressing operation is performed on the input unit, the sub control unit resumes the operation of the main control unit, and the operation of the display unit is also resumed accordingly. Thereby, wasteful power consumption due to the operation of the display unit being continued during a period when the display of the display unit is not confirmed (for example, when the user is absent or at bedtime) is suppressed.

JP 63-146116 A

  Here, let us consider a case where a sound corresponding to the validity / invalidity of the push operation received by the input unit is to be generated in the sound source unit, and the main control unit performs the validity / invalidity determination.

  In such a case, if only the sub-control unit performs control of the sound source unit, the sub-control unit generates a sound corresponding to the determination result of validity / invalidity of the push operation to the input unit. It is necessary to input a signal according to the push operation to the main control unit and to input a signal according to the determination result from the main control unit to the sub control unit. By taking a certain amount of time to input and output signals between the main control unit and the sub control unit, there is a time lag from when the push operation to the input unit is accepted until the sound source unit generates sound. It was relatively long.

  The present invention has been made in view of the above reasons, and an object of the present invention is to provide an interface device in which the time from when a pressing operation to the input unit is accepted until the sound source unit generates sound is shortened. There is.

  The interface device of the present invention includes a display unit that displays an image, an input unit that receives a pressing operation, a sound source unit that generates sound, and a sub-control unit that outputs an electrical signal corresponding to the pressing operation to the input unit. A main control unit that controls the display unit according to the electrical signal output by the sub control unit, and the sub control unit continues for a predetermined waiting time when there is no pressing operation on the input unit The operation of the main control unit and the display unit is stopped when the operation is performed, and the operation of the main control unit and the display unit is resumed when the input unit is subsequently pressed. The main control unit is directly connected to the sound source unit, and controls the sound source unit without passing through the sub-control unit for at least a part of the pressing operation to the input unit.

  In the above interface device, it is desirable that a terminal connected to the sound source unit in each control unit can be in a high impedance state.

  Further, in the interface device, in the sub control unit and the main control unit, a terminal connected to the sound source unit controls at least the other of the sub control unit and the main control unit. It is desirable to be in a high impedance state during the period.

  Furthermore, in the above interface device, the sub control unit and the main control unit input a predetermined electric signal to the other of the sub control unit and the main control unit when operating the sound source unit. It is preferable that the other of the sub control unit and the main control unit to which the predetermined electrical signal is input has the terminal in a high impedance state.

  Further, in the above interface device, the main control unit determines whether the push operation is valid or invalid when a push operation is performed in the input unit during operation, and the push control is released when the push operation is released. It is desirable to control the sound source unit so as to generate a sound corresponding to the determination result.

  Furthermore, in the above interface device, it is desirable that the main control unit controls the display unit according to the pressing operation when at least the pressing operation is determined to be valid.

  Alternatively, in the above interface device, the input unit includes a touch panel and a push button device, and the main control unit determines whether the push operation on the touch panel is valid or invalid and generates a sound according to the determination result. If the push operation on the touch panel is valid when the sound source unit is controlled, determination data used to determine whether the push operation on the push button device is valid after the input is received is the sub-control. The sub-control unit determines whether the push operation in the push button device is valid or invalid using the determination data and controls the sound source unit to generate a sound according to the determination result It is desirable.

  Furthermore, in the above interface device, the main control unit determines whether the push operation is valid or invalid when a push operation is performed on the touch panel, and determines the result of the determination when the push operation is released. It is desirable to control the sound source unit so as to generate a corresponding sound.

  In the interface device, it is preferable that the main control unit controls the display unit according to the pressing operation when at least the pressing operation is determined to be valid.

  Alternatively, in the above interface device, the input unit includes a touch panel and a push button device, and the main control unit determines whether the push operation on the touch panel is valid or invalid and generates a sound according to the determination result. Preferably, the sound source unit is controlled, and the sub-control unit determines whether the push operation in the push button device is valid or invalid and controls the sound source unit so as to generate a sound according to the determination result.

  In the interface device, the main control unit determines whether the push operation is valid or invalid when a push operation is performed on the touch panel, and determines the result of the determination when the push operation is released. It is desirable to control the sound source unit so as to generate a corresponding sound.

  Furthermore, in the above interface device, it is desirable that the main control unit controls the display unit according to the pressing operation when at least the pressing operation is determined to be valid.

  Another interface device according to the present invention includes a display unit that displays an image, an input unit that receives a pressing operation, a sound source unit that generates sound, a main control unit that controls the display unit, and a push to the input unit. The operation of the main control unit and the display unit is stopped when there is no operation for a predetermined waiting time, and the main control unit and the display are operated when the input unit is subsequently pressed. A sub-control unit that resumes operation with the unit, and when the input unit accepts a pressing operation, the sub-control unit causes the sound source unit to generate a sound indicating that the pressing operation has been accepted. Control and notifying the main control unit of the content of the push operation, the main control unit determines the validity / invalidity of the push operation, and the determination result is input to the sub control unit, the sub control unit Generate a sound according to the judgment result And controls the tone generator section.

  Still another interface device according to the present invention includes a display unit that displays an image, an input unit that receives a pressing operation, a sound source unit that generates sound, a main control unit that controls the display unit, and an input to the input unit. The operation of the main control unit and the display unit is stopped when a time during which no push operation is performed continues for a predetermined waiting time, and the main control unit and the display when the input unit is subsequently pressed A sub-control unit that resumes operation with the display unit, and when the input unit receives a push operation, the sub-control unit determines whether the push operation is valid or invalid, and generates a sound according to the determination result. The sound source unit is controlled to be generated.

  According to the present invention, for at least a part of the pressing operation to the input unit, the sound source unit is controlled without going through the sub-control unit, or a sound is generated before the validity / invalidity of the pressing operation is determined. Therefore, the sub-control unit controls the sound source unit, or the sub-control unit determines whether the push operation is valid / invalid. Therefore, the main control unit determines whether the push operation to the input unit is valid / invalid. Compared to the case where the sub-control unit controls the sound source unit according to the determination result, the operation between the main control unit and the sub-control unit until the sound source unit generates sound after the pressing operation to the input unit is accepted. Since the input / output of the signal is reduced, the time from when the pressing operation to the input unit is accepted until the sound source unit generates sound is shortened.

It is a block diagram which shows Embodiment 1 of this invention. It is a front view showing the same. It is a circuit block diagram which shows the principal part same as the above. It is a circuit block diagram which shows the principal part of a comparative example same as the above. (A) (b) is a flowchart which respectively shows operation | movement same as the above, (a) shows operation | movement in a power saving mode when there is pushing operation to an input part, (b) shows input part The operation in the case of not being in the power saving mode when the pressing operation is performed in FIG. It is a flowchart which shows operation | movement of the comparative example same as the above. (A) (b) is a flowchart which shows operation | movement of Embodiment 2 of this invention, respectively, (a) shows operation | movement when there exists pushing operation to a touchscreen, (b) shows pushing operation to a pushbutton apparatus. The operation in the case of being present is shown. It is a block diagram which shows Embodiment 3 of this invention. It is a flowchart which shows operation | movement same as the above. It is a flowchart which shows operation | movement of Embodiment 4 of this invention. It is a flowchart which shows the operation | movement in not being a power saving mode, when there is pushing operation in a pushbutton apparatus in the example of a change of Embodiment 1 of this invention.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
In the present embodiment, as shown in FIG. 1, a display unit MN that displays an image, an input unit CP that receives a pressing operation, a sound source unit BZ that generates a sound, and an electricity corresponding to the pressing operation on the input unit CP. A sub-control unit PU2 that outputs a signal and a main control unit PU1 that controls the display unit MN are provided.

  The display unit MN includes, for example, a display device MN1 (see FIG. 2) such as a liquid crystal panel, and a drive circuit that drives the display device MN1 according to control of the main control unit PU1.

  Furthermore, the present embodiment includes a communication unit RD that is controlled by the main control unit PU1 and transmits and receives a radio signal using radio waves as a medium with an external device. The communication unit RD has an antenna RD1 as shown in FIG.

  Specifically, for example, the external device described above is a power measurement device provided in a distribution board, and in the present embodiment, the amount of power consumed in the house or the house according to the pressing operation to the input unit CP. Information such as the amount of power generation in the provided solar cell or the like is acquired from the power measurement apparatus and displayed by wireless communication in the communication unit RD.

  The input unit CP includes a touch panel CP1 that receives a push operation (contact) on the display device MN1, and a push button device CP2 that includes a plurality (two in FIG. 2) of push button switches CP21 disposed in the vicinity of the display unit MN. With.

  When the touch panel CP1 is pressed on the display unit MN (more specifically, on the screen of the display device MN1), the touch panel CP1 is an electric signal S0 (see FIG. Is input to the sub-control unit PU2. In addition, when the above-described push operation is released, the touch panel CP1 generates an electric signal S1 (see FIG. 5; hereinafter referred to as an “operation end signal”) indicating the position of the push operation immediately before being released. Input to the sub-control unit PU2.

  The push button device CP2 inputs a predetermined electrical signal S0 (see FIG. 5; hereinafter referred to as “operation start signal”) to the sub-control unit PU2 when any one of the push button switches CP21 is pushed. Further, the push button device CP2 inputs a predetermined electric signal S1 (see FIG. 5, hereinafter referred to as “operation end signal”) to the sub-control unit PU2 when the above-described push operation is released. The operation start signal S0 and the operation end signal S1 each include information indicating which push button switch CP21 is pressed.

  Touch panel CP1 and push button device CP2 each include a chattering prevention circuit. For example, the chattering prevention circuit does not output the operation start signal S0 until the duration of the pressing operation reaches a predetermined time. Alternatively, the chattering prevention circuit does not output the operation end signal S1 until the continuation time of the state where there is no push operation reaches a predetermined time (that is, a plurality of continuous push operations at intervals within the predetermined time, It may be considered as one pushing operation that is continuous with each other).

  As shown in FIG. 3, the sound source unit BZ includes an electrical sound source BZ1, and a switching element SW1 that is controlled by the sub-control unit PU2 and the main control unit PU1 to turn on / off the power to the sound source BZ1. For example, a piezoelectric buzzer can be used as the sound source BZ1, and a transistor can be used as the switching element SW1.

  Here, each of the control units PU1 and PU2 has a terminal (hereinafter referred to as “sound source control terminal”) connected to a control terminal (for example, a base) of the switching element SW1 of the sound source unit BZ. The sound source unit BZ can be controlled by the output from the sound source control terminal. In each of the control units PU1 and PU2, the sound source control terminal can take a high impedance state in addition to the H level and the L level. Each control unit PU1, PU2 controls the other control unit PU1, PU2 (that is, the side that does not control the sound source unit BZ at that time) before controlling the sound source unit BZ to generate sound. A predetermined electrical signal (hereinafter referred to as “drive notification signal”) is input. The control units PU1 and PU2 to which the drive notification signal is input set the sound source control terminal in a high impedance state. The period in which the sound source control terminal is set to high impedance only needs to include a period in which the other control units PU1 and PU2 control the sound source unit BZ. Even if the input of the drive notification signal is continued, It may be a period of a certain length after the drive notification signal is input. Accordingly, it is not necessary to provide an element for preventing current wraparound between the control units PU1 and PU2, such as the second switching element SW2 shown in FIG. 4, and each control unit PU1 as shown in FIG. , PU2 can be bus-connected to one input terminal of the sound source unit BZ. In the flowchart, the drive notification signal is not shown.

  Further, the sub-control unit PU2 shifts to a power saving mode in which the operations of the main control unit PU1 and the display unit MN are stopped when a time during which no input operation is performed on the input unit CP continues for a predetermined waiting time. That is, during the power saving mode, power supply to the main control unit PU1 and the display unit MN is stopped or reduced. Further, the sub-control unit PU2 resumes the operation of the main control unit PU1 and the display unit MN from the power-saving mode when the input unit CP is pressed during the power-saving mode. Let By shifting to the power saving mode as described above, wasteful power consumption due to continuing display on the display unit MN during a period when the display unit MN is not confirmed (for example, when the user is out or sleeping) is suppressed. .

  Hereinafter, the operation of each unit when there is an input to the input unit CP, which is a feature of the present embodiment, will be described.

  As described above, when the pressing operation is accepted by either the touch panel CP1 or the push button device CP2 (P1), the input unit CP inputs the operation start signal S0 to the sub-control unit PU2. Further, the input unit CP inputs an operation end signal S1 to the sub-control unit PU2 when the push operation is released.

  When the operation start signal S0 is input, the sub-control unit PU2 is in a power saving mode and, as shown in FIG. 5A, a predetermined electric signal (hereinafter referred to as “operation restart”) Called “Signal”.) S2 is input to the main control unit PU1. The main control unit PU1 to which the operation resumption signal is input resumes the operation (P2). Further, the sub-control unit PU2 outputs an operation resumption signal S2 and inputs a predetermined drive signal S3 to the sound source unit BZ, thereby generating a predetermined sound indicating a return from the power saving mode (P3). The sound source unit BZ is controlled.

  Further, if the sub control unit PU2 is not in the power saving mode when the operation start signal S0 is input, the sub control unit PU2 outputs the operation start signal S0 and the operation end signal S1 as shown in FIG. 5B. Forward to. When the operation start signal S0 is input, the main control unit PU1 determines validity / invalidity of the pressing operation indicated by the operation start signal S0 (P4). Here, a push operation determined to be valid is a meaningful operation in the state when the push operation is performed, and a push operation determined to be invalid has a meaning in the state when the push operation is performed. There is no operation. Specifically, the push operation determined to be invalid includes, for example, a push operation on an area that is not set as a button on the touch panel CP1, or a push operation instructing cancellation of selection when nothing is selected. Conceivable.

  By the way, in the touch panel CP1, since the position of the push operation may change while the push operation is continued, the position of the push operation indicated by the operation end signal S1 is the position of the push operation indicated by the operation start signal S0. May be different. Further, in the push button device CP2, when the duration of the push operation is a predetermined time or more, it is recognized as a so-called long press, and is recognized as an instruction different from the case where the above duration is less than the predetermined time. There is a case.

  Therefore, when the operation end signal S1 is input, the main control unit PU1 first determines whether the validity / invalidity determination may change. If there is no possibility that the validity / invalidity determination will change, the determination result when the operation start signal S0 is input is maintained. If the validity / invalidity determination may change, the validity / invalidity of the push operation is determined based on the operation end signal S1. As the touch panel CP1, a signal indicating the position (coordinates) of the push operation (hereinafter referred to as “coordinate signal”) is used instead of the information on the position of the push operation in the operation end signal S1 (hereinafter referred to as “coordinate signal”). It is also possible to use what is input at any time (for example, periodically). In this case, the validity / invalidity of the push operation is determined based on the coordinate signal input immediately before the operation end signal S1, not the operation end signal S1.

  Thereafter, the main control unit PU1 inputs an appropriate control signal S4 to the sound source unit BZ, thereby generating a sound according to the final result of the validity / invalidity determination (P5), so as to generate a sound source unit BZ. To control. Further, if the result of the determination is valid, the main control unit PU1 controls the display unit MN and the communication unit RD according to the pressing operation determined to be valid (P6). In the example of FIG. 5, the control (P6) of the display unit MN and the like is performed after the output of the control signal S4. However, the control (P6) of the display unit MN and the like is performed before the output of the control signal S4. It may be done.

  According to the above configuration, since the sound source unit BZ generates a sound without performing the validity / invalidity determination during the power saving mode (that is, when the main control unit PU1 is stopped), the sound source unit after the main control unit PU1 resumes operation Compared with the case of controlling BZ, the time from when the input unit CP is pressed to when the sound source unit BZ generates sound is shortened.

  Further, if the power saving mode is not in effect (that is, the main control unit PU1 is operating), the main control unit PU1 directly controls the sound source unit BZ, so that the determination notification indicating the determination result of validity / invalidity as shown in FIG. Compared with the case where the sub-control unit PU2 to which the signal S6 is input from the main control unit PU1 controls the sound source unit BZ, the time from when the input unit CP is pressed until the sound source unit BZ generates sound is shortened. .

  Further, since the validity / invalidity of the push operation is determined when the input unit CP outputs the operation start signal S0, compared with the case where the above determination is performed only when the operation end signal S1 is output. When the determination result is not changed by the operation end signal S1, the time until the sound source unit BZ generates a sound is shortened.

(Embodiment 2)
Since the basic configuration of this embodiment is the same as that of the first embodiment, the description of the common parts is omitted.

  This embodiment is different from Embodiment 1 in the case where the power saving mode is not in effect when the operation start signal S0 is input to the sub-control unit PU2.

  That is, when it is determined that the push operation is performed on the touch panel CP1 and is effective, the main control unit PU1 performs an operation (P6) of controlling the communication unit RD and the display unit MN as illustrated in FIG. Thereafter, determination data S5 indicating which push button switch CP21 of the push button device CP2 should be determined to be valid in a state after the push operation is accepted is input to the sub-control unit PU2.

  When the push operation is performed on the push button device CP2, as shown in FIG. 7B, the sub-control unit PU2 inputs the history of push operations on the push button device CP2 or the past from the main control unit PU1. Based on the determination data S5, it is determined whether the pressing operation is valid or invalid, and the sound source unit BZ is controlled so as to generate a sound corresponding to the determination result. The sub-control unit PU2 inputs an operation end signal S1 to the main control unit PU1 when it is determined that at least the pressing operation is valid. The main control unit PU1 controls the communication unit RD and the display unit MN according to the input operation end signal (P6).

  According to the above configuration, if the pressing operation is performed on the touch panel CP1, the main control unit PU1 directly controls the sound source unit BZ as in the first embodiment, so that the sound source unit BZ is controlled via the sub control unit PU2. Compared to the case where the input unit CP is pressed, the time from when the sound source unit BZ generates sound is shortened.

  In addition, compared with the case where the main control unit PU1 determines whether the push operation with respect to the push button device CP2 is valid or invalid, the time from when the push button device CP2 is pushed to when the sound according to the judgment result is generated is shortened. be able to.

  In the case where the determination of the validity / invalidity of the push operation in the push button device CP2 does not depend on the history of the push operation on the touch panel CP1, but depends only on the history of the push operation on the push button device CP2, as shown in FIG. Such input / output of the determination data S5 can be omitted. As such a case, for example, the push button device CP2 may include an on switch for instructing a return from the power saving mode and an off switch for instructing a shift to the power saving mode as the push button switch CP21. In this case, the push operation determined to be invalid is an on-switch push operation in a state not in the power saving mode and an off switch push operation in the power saving mode.

(Embodiment 3)
Since the basic configuration of this embodiment is the same as that of the first embodiment, the description of the common parts is omitted.

  In the present embodiment, as shown in FIG. 8, the main control unit PU1 is not connected to the sound source unit BZ, and only the sub control unit PU2 is connected to the sound source unit BZ to control the sound source unit BZ.

  If the input unit CP is pressed when not in the power saving mode, the sub-control unit PU2 inputs a predetermined control signal S7 to the sound source unit BZ as shown in FIG. The sound source unit BZ is controlled so as to generate a sound indicating acceptance (P7). The sub-control unit PU2 inputs the operation end signal S1 input from the input unit CP to the main control unit PU1. When the operation end signal S1 is input, the main control unit PU1 determines validity / invalidity of the pressing operation indicated by the operation end signal S1, and inputs a determination notification signal S6 indicating the determination result to the sub-control unit PU2. . Further, if the above determination result is valid, the main control unit PU1 controls the communication unit RD and the display unit MN (P6). Here, in FIG. 9, the control of the display unit MN and the like (P6) is performed after the output of the determination notification signal S6, but even if the determination notification signal S6 is output after the control of the display unit MN and the like (P6). Good. The sub-control unit PU2 to which the determination notification signal S6 is input controls the sound source unit BZ with an appropriate control signal S4 so as to generate a sound according to the determination result indicated in the determination notification signal S6.

  That is, in this embodiment, the sound source unit BZ generates a sound twice for each pressing operation.

  According to the above configuration, the time from when the input unit CP is pressed to when the sound source unit BZ generates sound is shortened compared to when the sound indicating that the pressing operation is accepted is not generated.

(Embodiment 4)
Since the basic configuration of this embodiment is the same as that of the third embodiment, the description of the common parts is omitted.

  In the present embodiment, as shown in FIG. 10, there is a point that a sound indicating that the pressing operation has been accepted is not generated, and a point that the sub-control unit PU2 determines whether the pressing operation in the input unit CP is valid or invalid. This is different from the third embodiment.

  That is, when the input unit CP is pressed when not in the power saving mode, the sub control unit PU2 inputs the operation end signal S1 input from the input unit CP to the main control unit PU1. The main control unit PU1 controls the communication unit RD and the display unit MN according to the input operation end signal S1 (P6). Further, the main control unit PU1 inputs determination data S5 used for determination of validity / invalidity of the push operation in the post-control state to the sub-control unit PU2.

  Further, the sub-control unit PU2 determines whether the pressing operation indicated by the operation end signal S1 is valid (P4), and uses the appropriate control signal S4 to generate the sound source unit BZ so as to generate a sound according to the determination result. Control.

  According to the above configuration, the time from when the input unit CP is pressed to when the sound source unit BZ generates sound is shortened compared to when the main control unit PU1 determines whether the pressing operation is valid or invalid.

  In the present embodiment, since the history of effective pressing operations can be managed by the sub-control unit PU2, the input of the determination data S5 from the main control unit PU1 may be omitted.

  In the third and fourth embodiments, as in the first and second embodiments, the validity / invalidity of the push operation may be determined when the operation start signal S0 is output from the input unit CP.

  Furthermore, in each of the above-described embodiments, when the validity / invalidity determination does not change depending on whether or not the push operation in the push button device CP2 is a long push, the push operation to the push button device CP2 is performed as shown in FIG. The sound source unit BZ may be driven before the output of the end signal S1. FIG. 11 shows an application example of the above modification to the first embodiment. In the example of FIG. 11, whether or not the pressing operation is a long press does not affect the validity / invalidity determination (P4), but may affect the contents of the control (P6) of the display unit MN and the like. Control (P6) of the display unit MN and the like is performed after the operation end signal S1 is input.

  Alternatively, in each of the above embodiments, as the input unit CP, one that outputs only one of the operation start signal S0 and the operation end signal S1 may be used. Further, the touch panel CP1 and the push button device CP2 output, for example, the touch panel CP1 that outputs both the signals S0 and S1 and the push button device CP2 that outputs only the operation start signal S0. The signals S0 and S1 may be different. However, when the push button device CP2 that outputs only the operation start signal S0 is used, the long press operation is impossible. Further, when the touch panel CP1 that outputs only the operation start signal S0 is used, it is impossible to perform an operation of changing the push operation position while continuing the push operation. In addition, when the input unit CP that outputs only the operation end signal S1 is used, if the input unit CP measures the duration of the pressing operation, a long pressing operation is possible, but the return from the power saving mode is possible. The timing at which (P2) and determination (P4) of the validity / invalidity of the push operation can be performed is delayed. Therefore, it is desirable to use an input unit CP that outputs both the operation start signal S0 and the operation end signal S1 as described above.

BZ Sound source part CP Input part CP1 Touch panel CP2 Pushbutton device MN Display part PU1 Main control part PU2 Sub control part

Claims (14)

A display for displaying an image;
An input unit that accepts pressing operations;
A sound source section for generating sound,
A sub-control unit that outputs an electrical signal in response to a pressing operation to the input unit;
A main control unit that controls the display unit according to the electrical signal output by the sub-control unit,
The sub-control unit stops the operation of the main control unit and the display unit when a time during which there is no pressing operation on the input unit continues for a predetermined waiting time, and then presses the input unit. When there is, the operation of the main control unit and the display unit is resumed,
The main control unit is directly connected to the sound source unit, and controls the sound source unit without passing through the sub control unit for at least a part of the pressing operation to the input unit. .   In the sub control unit and the main control unit, a terminal connected to the sound source unit is in a high impedance state during a period in which at least the other of the sub control unit and the main control unit controls the sound source unit. The interface device according to claim 1, wherein:   When the sub-control unit and the main control unit operate the sound source unit, the sub-control unit and the main control unit input a predetermined electric signal to the other of the sub-control unit and the main control unit, and input the predetermined electric signal. 3. The interface apparatus according to claim 2, wherein the other of the sub-control unit and the main control unit is configured to place the terminal in a high impedance state. When a pressing operation is performed on the input unit during the operation of the main control unit, the main control unit controls the sound source unit to generate a sound,
The auxiliary control unit controls the sound source unit to generate sound when a pressing operation is performed on the input unit while the main control unit is stopped. The interface device described.   The main control unit determines whether the pressing operation is valid or invalid when a pressing operation is performed at the input unit during operation, and generates a sound according to the determination result when the pressing operation is released. 5. The interface apparatus according to claim 4, wherein the sound source unit is controlled so as to be generated.   The interface device according to claim 5, wherein the main control unit controls the display unit according to the push operation when at least the push operation is determined to be valid. The input unit includes a touch panel and a push button device,
The main control unit determines whether the pressing operation on the touch panel is valid or invalid and controls the sound source unit to generate a sound according to the determination result. If the pressing operation on the touch panel is valid, the input is Input the determination data used to determine the validity / invalidity of the push operation in the push button device in the state after being accepted to the sub-control unit,
The sub-control unit determines whether the push operation in the push button device is valid or invalid using the determination data and controls the sound source unit to generate a sound according to the determination result. The interface device according to claim 1.   The main control unit determines whether the pressing operation is valid or invalid when a pressing operation is performed on the touch panel, and generates a sound corresponding to the determination result when the pressing operation is released. 8. The interface apparatus according to claim 7, wherein the sound source unit is controlled.   9. The interface device according to claim 8, wherein the main control unit controls the display unit according to the push operation when at least the push operation is determined to be valid. The input unit includes a touch panel and a push button device,
The main control unit determines whether the pressing operation on the touch panel is valid or invalid and controls the sound source unit to generate a sound according to the determination result,
The said sub-control part controls the said sound source part to generate | occur | produce the sound according to the determination result while determining whether the push operation in the said pushbutton apparatus is effective or invalid. The interface device according to claim 1.   The main control unit determines whether the pressing operation is valid or invalid when a pressing operation is performed on the touch panel, and generates a sound corresponding to the determination result when the pressing operation is released. The interface device according to claim 10, wherein the sound source unit is controlled.   12. The interface device according to claim 11, wherein the main control unit controls the display unit according to the push operation when at least the push operation is determined to be valid. A display for displaying an image;
An input unit that accepts pressing operations;
A sound source section for generating sound,
A main control unit for controlling the display unit;
The operation of the main control unit and the display unit is stopped when the time when there is no pressing operation to the input unit is continued for a predetermined waiting time, and then when the pressing operation to the input unit is performed A sub-control unit that resumes the operation of the main control unit and the display unit,
When a pressing operation is received by the input unit, the sub-control unit controls the sound source unit to generate a sound indicating that the pressing operation has been received, and the contents of the pressing operation are transmitted to the main control unit. The main control unit determines whether the push operation is valid / invalid and inputs a determination result to the sub control unit, and the sub control unit generates the sound according to the determination result. An interface device characterized by controlling the above. A display for displaying an image;
An input unit that accepts pressing operations;
A sound source section for generating sound,
A main control unit for controlling the display unit;
The operation of the main control unit and the display unit is stopped when the time when there is no pressing operation to the input unit is continued for a predetermined waiting time, and then when the pressing operation to the input unit is performed A sub-control unit that resumes the operation of the main control unit and the display unit,
When a pressing operation is accepted by the input unit, the sub-control unit determines whether the pressing operation is valid / invalid and controls the sound source unit to generate a sound according to the determination result. Interface device.

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