JP2006109158A - Electronic device, electronic device system, and audio reproduction system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restore without troublesome forced operation of removing a battery, as an example, from main body even under hang-up conditions. <P>SOLUTION: In the electronic device which is connected with a remote controller 2, a simultaneous push detecting circuit 60, which generates a rest signal if simultaneous push of an operation member of an operation unit 22 is detected, is provided on the side of remote controller 2. On the side of the main body 1, a reset circuit 70 is provided which controls a power circuit unit 19 and causes CPU 11 to carry out reset operation according to the receive of the reset signal. The remote controller 2 and the device main body 1 are connected with a reset dedicating line 50 for conducting the reset signal, which was generated from the simultaneous push detecting circuit 60, to the reset circuit 70. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic device that can be operated from the outside by using a remote control device (hereinafter referred to as a remote control), such as an audio playback device.

  2. Description of the Related Art Conventionally, as an electronic device that uses a remote controller, there is an audio playback device, a so-called portable player, that stores music data in a file format on a storage medium such as a hard disk and processes the music data with a CPU to play music. In recent years, this portable player has been requested to be multi-functional in the same way as portable devices such as mobile phones and digital cameras. For example, it is conceivable to add a function for reproducing images together with music. Yes. However, the multi-functionalization has caused the program to be complicated, and since there was a bug in the program, there was a high risk that the CPU would runaway and hang up, resulting in inoperability.

  By the way, normally, when the CPU is in a hang-up state, the CPU is recovered by resetting the CPU. For this reason, some notebook personal computers have a dedicated reset switch that can be easily reset by operating this reset switch when the CPU enters a hang-up state. there were.

However, in the portable player, design as a product is emphasized, and in order to reduce the cost as much as possible, it has been required to reduce even one extra switch from the device body. Therefore, conventionally, in order to eliminate the dedicated reset switch from the device main body, a switch simultaneous pressing time detection circuit is provided in the device main body, and when the CPU runs out of control and hangs up, the power switch and at least one other switch There is a method of resetting the CPU by outputting a reset signal from the switch simultaneous pressing time detection circuit to the reset input terminal of the CPU when it is detected that the buttons are simultaneously pressed for a predetermined time or more (see, for example, Patent Document 1). ).
JP-A-11-95875

  However, the method of resetting the CPU by outputting the reset signal to the reset input terminal of the CPU as described above does not work when the CPU hang-up state does not accept the input from the reset input terminal. There was a problem.

  In such a case, the user had to reset the CPU by forcibly turning off the main power source by removing the battery from the device main body.

  The present invention has been made based on such circumstances, and the object of the present invention is to provide an electronic device that can be remotely operated using a remote controller, for example, an audio playback device, even if it is in a hang-up state where reset input is impossible. The object is to enable recovery without being forced to perform complicated operations such as removing the battery from the device body.

The present invention relates to an electronic device that can be connected to a remote controller, a system control unit that controls the overall operation of the electronic device, a power source unit that supplies power to the system control unit, and a reset signal transmitted from the remote controller Reset signal receiving means, and power supply control means for controlling the power supply means so that the system control means performs a reset operation after receiving the reset signal by the reset signal receiving means.
With this configuration, in the electronic device of the present invention, the system control unit performs a reset operation after receiving a reset signal transmitted from the remote controller.

  In the present invention, the power supply control means performs control so that power supply to the system control means is once stopped after receiving the reset signal, and then power supply to the system control means is performed again. By doing so, the system control means is restarted after the reset operation.

  The power supply control unit performs control so that the power supply to the system control unit is not resumed while the reset signal is received after temporarily stopping the power supply to the system control unit.

  The power supply control means can operate independently of the system control means.

  The present invention also provides a system control means for controlling the overall operation of the electronic device and a power supply for supplying power to the system control means in an electronic device system comprising an electronic device and a remote controller for operating the electronic device from the outside. Means, a reset signal generating means for generating a reset signal provided in the remote control, a reset signal transmitting means for transmitting the reset signal generated by the reset signal generating means from the remote control to the electronic device, and the reset signal transmitting means Power supply control means for controlling the power supply means so that the system control means performs a reset operation after receiving the transmitted reset signal.

  With this configuration, in the electronic device system of the present invention, the system control unit of the electronic device performs a reset operation by transmitting a reset signal from the remote controller.

  Also in this invention, the power supply control means performs control so as to once again stop the power supply to the system control means after receiving the reset signal, and then supply the power to the system control means again. By doing so, the system control means of the electronic device is restarted after the reset operation.

  The power supply control unit performs control so that the power supply to the system control unit is not resumed while the reset signal is received after temporarily stopping the power supply to the system control unit.

  The power supply control means and the reset signal generation means can operate independently of the system control means.

  The reset signal generating means is configured to generate a reset signal when a plurality of operation members provided on the remote controller are operated simultaneously.

  This reset signal generating means includes a logic circuit or a microcomputer.

  The present invention also provides an audio playback system including an audio playback device capable of playing back stored audio data, and a remote controller that is provided integrally with an earphone connected to the audio playback device and operates the audio playback device from the outside. System control means for controlling the overall operation of the audio playback apparatus; power supply means for supplying power to the system control means; reset signal generating means for generating a reset signal provided in the remote control; and reset signal generating means After receiving the reset signal transmitted from the remote control to the audio reproduction device via the earphone connection terminal provided in the audio reproduction device and the reset signal transmitted by the reset signal transmission unit System control means resets It is obtained by a power control means for controlling sea urchin power means.

  According to the present invention in which such a measure is taken, it is possible to easily perform a reset operation in an electronic device that can be remotely operated using a remote controller, such as an audio playback device.

The best mode for carrying out the present invention will be described below with reference to the drawings.
In this embodiment, the present invention is applied to an audio playback device with a digital camera function for playing back content such as music and images, that is, a so-called portable player, as an aspect of an electronic device that can be remotely operated using a remote controller. This is the case.

  FIG. 1 is a block diagram showing a main configuration of a portable player according to the present embodiment. In the figure, reference numeral 1 denotes a player main body which is a device main body, and reference numeral 2 denotes a remote controller capable of remotely operating the player main body 1. The remote controller 2 is provided integrally with an earphone 3 that is detachably connected to the player body 1.

  The player main body 1 stores a CPU 11 as system control means for controlling the entire operation of the player main body 1, a ROM (Read Only Memory) 12 in which fixed data such as programs are stored in advance, and various data temporarily. RAM (Random Access Memory) 13 in which a memory area is formed, an HDD (Hard Disk Drive) device for storing various contents such as music and images, a USB (Universal Serial Bus) An external device connection unit 15 such as an interface, a D / A (Digital / Analog) converter 16 that converts a digital signal of music data into an analog signal, a display unit 17 with a touch panel using an LCD (Liquid Crystal Display), a CCD ( Charge Coupled Device) A power source for supplying power to each unit including the imaging unit 18 and the CPU 11 configured by a camera module Such as a power supply circuit portion 19 of the stage is mounted.

  The CPU 11 is connected to the ROM 12, the RAM 13, the storage unit 14, and the external device connection unit 15 through an address bus 41 and a data bus 42. The CPU 11 is connected to the D / A converter 16, the display unit 17, and the imaging unit 18 via the data bus 42. Further, the CPU 11 is connected to the power supply circuit unit 19 through a control command line 43.

  The display unit 17 with a touch panel displays various GUI (Graphical User Interface) buttons such as a play button and a stop button. By touching these GUI buttons with a finger, the player main body 1 instructs various operations such as playback and stop. In addition, setting of the main body, mode setting, and the like are also performed by touching a GUI button displayed on the display unit 17. It is also possible to browse and edit still images and moving images stored in the storage unit 14 using the display unit 17. It is also possible to view and edit various slide shows by combining music and images.

  The shutter button of the imaging unit 18 is also displayed as a GUI button on the display unit 17, and the shutter of the camera function is released by pressing this button. Depending on the setting of the main body, it is possible to change so that the autofocus is performed when the shutter button is pressed once and the shutter is released when the shutter button is pressed again.

  The power supply circuit unit 19 stores power from a power supply 44 supplied via a USB power supply bus, a battery, or an AC adapter in a secondary battery built in the player main body 1 so that the voltage is appropriate for the CPU 11 and its peripheral devices. It is converted and distributed. A power button 45 provided on the player body 1 is connected to the power supply circuit unit 19. The power button 45 is also used as a hold button. When the power button 45 is pressed in the power off state, the switch in the power circuit unit 19 is turned on, and the power source 44 and the player body 1 are connected. This connection state is maintained until there is a power-off instruction command from the CPU 11 via the control command line 43.

  Further, when the power button 45 is pressed in the power-on state, the software determines whether the operation is a hold operation or a power-off operation depending on the pressing time, and processes. That is, when a voltage indicating that the power button 45 is pressed is output, the CPU 11 counts the time during which this voltage is output with the internal clock. If the count is continued to a preset value, it is determined that the operation is a power-off operation, and the CPU 11 executes a process for shutting down the system, and then sends a power-off instruction command to the power circuit 19. On the other hand, if the voltage indicating that the power button 45 is pressed before counting to a preset value is not output, the CPU 11 determines that the operation is a hold operation, and the CPU 11 performs various operations displayed on the display unit 17. Hold processing such as invalidating operation input of the GUI button is performed. At this time, the display on the display unit 17 may be erased, and an indicator (for example, a light emitting diode) indicating that the power is on may be turned on or blinked.

  The remote controller 2 is equipped with an MCU (Micro Controller Unit) 21, and an operation unit 22 and a display unit 23 are connected to the MCU 21.

  An external view of the earphone 3 with remote control is shown in FIG. On the surface of the remote controller 2, as the operation unit 22, music control buttons such as a play / pause button 221, a stop button 222, a feed button 223 and a return button 224, a volume adjustment button 225 for adjusting the volume, and a performance mode There are provided operation members such as a performance mode button 226 for setting the display, a display button 227 for instructing to change display contents on the display unit 23, and a favorite setting button 228 for instructing registration of favorite music. In addition, a display unit 23 composed of an LCD or the like is provided.

  The remote controller 2 and the player body 1 are connected by inserting the plug 30 of the earphone 3 into an earphone connection terminal (not shown) provided on the player body 1. As shown in the enlarged view of FIG. 3, the plug 30 is provided with a pin jack terminal 31 for audio signal communication and a transmission / reception terminal 32 for remote control signal communication. The pin jack terminal 31 is provided with an L terminal 311 to which an L-side audio signal is input, an R terminal 312 to which an R-side audio signal is input, and an audio signal ground terminal 313. In addition, a reset terminal 314 to which a reset signal described later is output is provided in the pin jack terminal 31.

  The transmission / reception terminal 32 includes a code signal output terminal 321 corresponding to the various buttons 221, 222, 223, 224, and 225 of the operation unit 22, a signal input terminal 322 supplied from the player body 1, and a remote control 2. A power supply terminal 323 and a ground terminal 324 for supplying power are provided.

  By connecting the plug 30 having such a configuration to the earphone connection terminal of the player main body 1, as shown in FIG. 1, the L terminal 311, the R terminal 312 and the ground terminal 313 are connected to the D / A converter 16 and the audio signal lines 46L and 46R. The output terminal 321 and the input terminal 322 are connected to the CPU 11 via the control command line 47, the remote control power supply terminal 323 and the ground terminal 324 are connected to the power supply circuit unit 19, the remote control dedicated power supply line 48 and the ground line 49. Connected through. Further, the reset terminal 314 is connected to the power supply circuit unit 19 via the reset dedicated line 50.

  Here, basic functions of the operation buttons 221 to 228 provided on the remote controller 2 will be described. First, when the player main body 1 is in a music stop state, when the user presses the play / pause button 221 once, the music data stored in the storage unit 14 of the player main body 1 is played back, and the music is recorded. Played. If the play / pause button 221 is pressed once again during the performance, the pause mode is set and the music performance is interrupted. When the play / pause button 221 is pressed once again in the pause mode, the music performance is resumed. During the performance, when the feed button 223 or the return button 224 is pressed for a short time (for example, 1 second or less), the performance is started by moving to the head of the next music or the previous music. When the feed button 223 or the return button 224 is pressed for a long time, the music being played is fast-forwarded or rewinded, and the speed changes, for example, from 2 times to 5 times the normal speed. The longer the button is pressed, the faster the fast forward speed or rewind playback speed. When the stop button 222 is pressed during performance, the music performance is stopped.

  When the user presses the performance mode button 226 during the performance of the music, the performance mode is in the order of “one song repeat”, “all song repeat”, “random play”, “repeat off”, “one song repeat”. Is changed. When the user presses the display button 227 during music performance, information displayed on the display unit 23 in the order of “performance time”, “remaining time”, “all music remaining time”, “display off” is displayed each time. Be changed. In addition, for example, it can be used for switching a song name or a composer name. When the user presses the favorite setting button 228 during music performance, the music being played is registered as a favorite. If the pressing operation is performed again in this state, the favorite registration is canceled. Whether or not the musical piece being played is a favorite is stored as a list in the storage unit 14 of the player body 1. It is possible not only to register / cancel favorites but also to set the degree of favorites. In that case, the favorite degree increases every time the pressing operation is performed once. For example, when the favorite degree is five levels, the favorite degree is turned off by performing the pressing operation six times. When the “+” side of the volume adjustment button 225 is pressed, the volume heard from the earphone 3 is increased. When the “−” side is pressed, the volume is decreased. The basic functions of the operation buttons 221 to 228 provided on the remote controller 2 are as described above.

  In this embodiment, in order to satisfy the demand for reducing the number of operation switches on the player body 1 side, the player body 1 is provided with only one power button 45 that also functions as a hold function, and the reset button is excluded. ing. In order to realize a reset technique when the CPU 11 of the player main body 1 runs out of control and reaches a hang-up state, the MCU 21 on the remote control 2 side incorporates a simultaneous press detection circuit 60 and a power supply circuit section on the player main body 1 side. 19 includes a reset circuit 70. Then, by connecting the plug 30 of the earphone 3 to the earphone connection terminal of the player main body 1, the simultaneous push detection circuit 60 and the reset circuit 70 are connected by the reset dedicated line 50.

  As shown in FIG. 4, the simultaneous press detection circuit 60 has a PLAY signal that is low only while the play / pause button 221 is pressed and a low level only while the performance mode button 226 is pressed. The AND gate 61 outputs the reset signal RST by inverting and inputting the MODE signal to become and the FAVDIRITE signal that is low level only while the favorite setting button 228 is pressed. ing.

  Therefore, in the simultaneous press detection circuit 60, as shown in FIG. 5, when the PLAY signal, the MODE signal, and the FAVDrite signal are all at the low level, the reset signal RST is at the high level. Thereafter, when at least one of the PLAY signal, the MODE signal, and the FAVDrite signal becomes high level, the reset signal RST becomes low level. In the present embodiment, in order to prevent chattering, even if all of the PLAY signal, the MODE signal, and the FAVDIRITE signal are at a low level, the reset signal RST does not attain a high level immediately after that, and a slight time lag time is reached. It comes to rise to a high level with d. The reset signal RST output from the simultaneous pressing detection circuit 60 is supplied from the reset terminal 314 of the pin jack terminal 31 to the power supply circuit unit 19 via the reset dedicated line 50.

  Here, the simultaneous pressing detection circuit 60 constitutes reset signal generating means for generating a reset signal. The reset terminal 314 and the reset dedicated line 50 of the pin jack terminal 31 transmit a reset signal generated by the simultaneous pressing detection circuit 60 from the remote control 2 to the player main body 1 via an earphone connection terminal provided in the player main body. A reset signal transmitting means is configured. The simultaneous press detection circuit 60 is configured by an AND gate 61 that is a logic circuit, and can operate independently of the CPU 11 of the player main body 1.

  As shown in FIG. 6, the reset circuit 70 includes an integration circuit 71 composed of resistors R1 and R2 and a capacitor C, and the reset signal RST and a signal A obtained by integrating the reset signal RST by the integration circuit 71. A logical product gate 72 that calculates a logical product and outputs a signal B, and an inverter 73 that inverts the output signal B of the logical product gate 72 to generate a reset-on signal RSTON.

  Therefore, in the reset circuit 70, as shown in FIG. 7, when the reset signal RST becomes high level, the voltage of the signal A is gradually increased by the integrating circuit 71, and the time e set by the time constant elapses. The signal A becomes high level, and the output signal B of the AND gate 72 becomes high level. As a result, the reset on signal RSTON output from the inverter 73 becomes low level. Then, the switch in the power supply circuit unit 19 is turned off, and the power supply 44 is disconnected from the player main body 1. After that, when the reset signal RST becomes low level, the output signal B of the AND gate 72 becomes low level immediately after that, so that the reset on signal RSTON becomes high level. Then, the switch in the power supply circuit unit 19 is turned on, and the power supply 44 is connected to the player main body 1 again.

  Here, the reset circuit 70 functions as a reset signal receiving means for receiving the reset signal RST transmitted from the remote controller 2 and the power supply circuit unit so that the CPU 11 performs a reset operation in response to the reception of the reset signal RST. 19 has a function as power source control means for controlling the power source 19. The reset circuit 70 includes an integration circuit 71, a logical product gate 72, and an inverter 73, and can operate independently of the CPU 11.

  Next, a main operation procedure related to the present invention of the portable player configured as described above will be described with reference to the flowchart of FIG.

  First, when the power button 45 is pressed in the power-off state (S1), the switch in the power circuit unit 19 is turned on, and power is supplied from the power circuit unit 19 to the CPU 11 (S2). Thereby, after performing initialization processing such as clearing of the RAM 13 (S3), the CPU 11 reproduces music stored in the storage unit 14, displays a still image or a moving image on the display unit 17, or the imaging unit. Processing such as capturing a still image at 18 is performed (S4).

  When the power button 45 is pressed during execution of this process (S6), the CPU 11 determines whether or not the pressing time is a long press for a set time (for example, 3 seconds) or more (S7). If it is a long press, a process for shutting down the system is executed, and then a power-off instruction command is output to the power supply circuit unit 19 via the control command line 43 (S8). Thereby, the power supply from the power supply circuit unit 19 to the CPU 11 is stopped (S9). The above is the description of the operation at the normal end.

  Next, a description will be given of an abnormal end when a hang-up occurs during the process execution.

  When the player main body 1 hangs up due to some abnormality and the power supply off signal is no longer output from the CPU 11 to the power supply circuit unit 19 (S5), when the reset on signal RSTON becomes low level (S10). Thereafter, the switch in the power supply circuit unit 19 is turned off, and the power supply from the power supply circuit unit 19 to the CPU 11 is substantially stopped (S11). Thereafter, when the reset on signal RSTON returns to the high level (S12), the switch in the power supply circuit unit 19 is turned on, and the power supply from the power supply circuit unit 19 to the CPU 11 is resumed (S2). Thus, the CPU 11 operates in the same manner as when the power button 45 is pressed in the power-off state (S3, S4).

  In the portable player of this embodiment that operates as described above, when the CPU 11 hangs up and not accepts the operation input of the power button 45 as well as the GUI button displayed on the display unit 17. The user simultaneously presses the three buttons of the play / pause button 221, the performance mode button 226 and the favorite setting button 228 provided on the remote controller 2. Then, after all the three buttons are pressed at time t1 in FIG. 5, the reset signal RST output from the simultaneous press detection circuit 60 at a time t2 after a slight time lag time d has elapsed is set to the high level. Change.

  The reset signal RST is supplied to the reset circuit 70 of the power supply circuit unit 19 through the reset dedicated line 50. In the reset circuit 70, when the reset signal RST becomes high level at time t2 in FIG. 7, the output signal is output at time t3 after elapse of time e set by the time constant of the integration circuit 71. A certain reset on signal RSTON becomes low level. Thereby, the power supply from the power supply circuit unit 19 to the CPU 11 is stopped.

  Thereafter, when the user releases his / her finger from at least one button (play / pause button 221 in the example of FIG. 5) at time t4, the reset signal RST changes to a low level. Then, immediately after that, the reset on signal RSTON returns to the high level. Thereby, the power supply from the power supply circuit unit 19 to the CPU 11 is restarted, and the CPU 11 is restarted and reset.

  As described above, according to the present embodiment, in the portable player in which the player main body 1 and the remote controller 2 are set, even if the player main body 1 is in a hang-up state where reset input is impossible, the remote controller 2 is provided. The player main body 1 can be easily restarted simply by operating the three buttons. Therefore, the user is not compelled to take the trouble of taking out the player main body 1 from the bag and removing the battery, and the user's burden can be reduced.

  The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage.

  For example, in the above-described embodiment, the buttons detected by the simultaneous press detection circuit 60 are the three buttons of the play / pause button 221, the performance mode button 226, and the favorite setting button 228, but the combination of the three buttons is limited to this. Is not to be done. Further, the reset signal RST may be output by detecting simultaneous pressing of two buttons or four or more buttons. Or just one button. In that case, the reset operation should work when the button is pressed for a long time.

  In the above embodiment, the present invention is applied to the portable player using the remote controller 2 equipped with the MCU 21. However, the electronic device system such as the portable player using the remote controller 2 not equipped with the MCU 21 can be simultaneously pressed. The present invention can be applied by improving the detection circuit 60.

  An example of the configuration of the simultaneous pressing detection circuit 60 in this case is shown in FIG. This example is a circuit that detects simultaneous pressing of the three buttons of the play / pause button 221, the performance mode button 226, and the favorite setting button 228, as in the above-described embodiment.

  When none of the buttons 221, 226, 228 is pressed, there is no conduction between the remote control power line 48 and the ground line 49, and the voltage of the remote control power line 48 is connected to the AND gate 61. Applied directly to each input. As a result, the reset signal RST is at a high level.

  Here, when the play / pause button 221 is pressed, the remote control dedicated power line 48 and the ground line 49 are conducted through the resistor R3, and the input of the AND gate 61 becomes low level. Similarly, when the performance mode button 226 is pressed, the remote control dedicated power line 48 and the ground line 49 are conducted through the resistor R4, the input of the AND gate 61 becomes low level, and the favorite setting button 228 is pressed. When operated, the remote control dedicated power line 48 and the ground line 49 are conducted through the resistor R5, and the input of the AND gate 61 becomes low level. Thus, when all three inputs of the AND gate 61 are at a low level, the reset signal RST is at a high level. After that, the reset signal RST that has become high level is input to the reset circuit 70 of the power supply circuit unit 19 as in the above-described embodiment, and the reset on signal RSTON becomes low level after a certain period of time, and the player main body 1 supplies power. 44 is cut off. Thereafter, when the finger is released from at least one of the play / pause button 221, the performance mode button 226 and the favorite setting button 228, the reset signal RST becomes low level, and the reset on signal RSTON immediately becomes high level. Thus, power is supplied from the power supply circuit unit 19 to the CPU 11.

  The present invention is not limited to an audio playback device such as a portable player, but can be applied to any electronic device system that can be remotely operated using a remote controller.

  In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, the constituent elements over different embodiments may be combined.

1 is a block diagram showing a main configuration of a portable player according to an embodiment of the present invention. FIG. 3 is an external view of an earphone with a remote control used in the embodiment. The plug enlarged view of the earphone with a remote control used in the embodiment. The specific circuit block diagram of the simultaneous press detection circuit provided in the remote control side in the embodiment. FIG. 5 is a main part signal waveform diagram of the simultaneous pressing detection circuit shown in FIG. 4. The specific circuit block diagram of the reset circuit provided in the player main body side in the same embodiment. FIG. 7 is a signal waveform diagram of main parts of the reset circuit shown in FIG. 6. The flowchart which shows the main operation | movement procedures in connection with this invention of the portable player in the embodiment. The specific circuit block diagram of the simultaneous press detection circuit in the remote control which does not mount MCU.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Player main body, 2 ... Remote control (remote control device), 3 ... Earphone, 11 ... CPU, 14 ... Memory | storage part, 17 ... Display part with a touch panel, 19 ... Power supply circuit part, 21 ... MCU (microcomputer), 22 ... Operation unit 23... Display unit 44. Power supply 45. Power button 50. Reset line 60. Simultaneous press detection circuit 70 Reset circuit

Claims (11)

In electronic devices that can be connected to remote control devices,
System control means for controlling the overall operation of the electronic device;
Power supply means for supplying power to the system control means;
A reset signal receiving means for receiving a reset signal transmitted from the remote control device;
Power control means for controlling the power supply means so that the system control means performs a reset operation after receiving the reset signal by the reset signal receiving means;
An electronic apparatus comprising:   The power supply control means, after receiving the reset signal, temporarily stops power supply to the system control means, and then controls to supply power to the system control means again. 1. The electronic device according to 1.   The power supply control unit performs control so that power supply to the system control unit is not resumed while the reset signal is received after temporarily stopping power supply to the system control unit. The electronic device according to claim 2.   The electronic apparatus according to claim 1, wherein the power control unit is operable independently of the system control unit. In an electronic device system comprising an electronic device and a remote control device for operating the electronic device from the outside,
System control means for controlling the overall operation of the electronic device;
Power supply means for supplying power to the system control means;
A reset signal generating means provided in the remote control device for generating a reset signal;
Reset signal transmitting means for transmitting the reset signal generated by the reset signal generating means from the remote control device to the electronic device;
Power supply control means for controlling the power supply means so that the system control means performs a reset operation after receiving the reset signal transmitted by the reset signal transmission means;
An electronic device system comprising:   The power supply control means, after receiving the reset signal, temporarily stops power supply to the system control means, and then controls to supply power to the system control means again. 5. The electronic device system according to 5.   The power supply control unit performs control so that power supply to the system control unit is not resumed while the reset signal is received after temporarily stopping power supply to the system control unit. The electronic device system according to claim 6.   6. The electronic apparatus system according to claim 5, wherein the power supply control means and the reset signal generation means are operable independently of the system control means.   6. The electronic apparatus according to claim 5, wherein the reset signal generating means is configured to generate the reset signal when a plurality of operation members provided in the remote control device are operated simultaneously. system.   9. The electronic device system according to claim 8, wherein the reset signal generating means includes a logic circuit or a microcomputer. In an audio playback system comprising: an audio playback device capable of playing back stored audio data; and a remote control device provided integrally with an earphone connected to the audio playback device and operating the audio playback device from the outside.
System control means for controlling the overall operation of the audio playback device;
Power supply means for supplying power to the system control means;
A reset signal generating means provided in the remote control device for generating a reset signal;
Reset signal transmitting means for transmitting a reset signal generated by the reset signal generating means from the remote control device to the audio playback device via an earphone connection terminal provided in the audio playback device;
Power supply control means for controlling the power supply means so that the system control means performs a reset operation after receiving the reset signal transmitted by the reset signal transmission means;
An audio playback system comprising:

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