JP2002058092A - Reproducer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce power consumption by avoiding useless reproducing operation. SOLUTION: During a period where a headphone is not connected, operation of at least a reproduction means is stopped or power supply to the reproduction means is turned off. Furthermore, operation for reproduction is rejected. Consequently, useless operation of the reproduction means and thereby useless power consumption is avoided under a state where a user can not listen to a reproduced voice. Furthermore, reproducing operation is stopped or power supply is turned off when a headphone is removed during reproducing operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus for reproducing an audio signal, and more particularly to a device for connecting a headphone and outputting an audio signal.

[0002]

2. Description of the Related Art In recent years, for example, a small-sized audio reproducing apparatus which is portable has become widespread, and with the development of mobile telephones, some portable telephones have an audio signal reproducing function such as music. Is being developed. In a portable device having an audio reproducing function, such as a device manufactured exclusively for audio reproduction or a portable telephone device having an audio reproducing function, an optical disk / optical disk such as a compact disk, a mini disk, and a DVD is used. The apparatus is configured to perform a reproduction operation of music or the like using a magnetic disk or a memory card using a solid-state memory such as a flash memory as a recording medium for audio data. Of course, in addition to a recording medium that can be detached, there is a recording medium that uses a non-detachable recording medium.

[0003] In a portable audio reproducing apparatus, headphones or earphones are generally connected when listening to music to be reproduced, and no speaker for reproducing music is provided inside the apparatus. There are many.

[0004]

By the way, in a portable reproducing apparatus which is premised on listening to reproduced sound through such headphones, wasteful power is generated by performing a reproducing operation in a state where headphones are not connected. There is a problem that consumption is often performed. In a state where the headphones are not connected, even if the reproducing operation is executed, the reproduced sound is not heard by the user at all, and the user cannot recognize that the reproducing operation is being performed. For example, when the user is not using the playback device, remove the headphones from the playback device and put them in a bag or put them on a desk,
In this case, even if the reproducing operation is performed by some kind of erroneous operation, the user does not easily notice it. Therefore, useless power consumption is performed. In the case of a portable device, since a rechargeable battery or a dry battery is used as a power source, useless power consumption shortens the operable time, which is a serious problem for the user.

Some conventional portable reproducing apparatuses have a hold function in order to avoid erroneous operations. A user operates a hold switch and turns on the hold function to prevent a key operation from being accepted. There are things that are. In this case, for example, even if the operation key is pressed in a bag or the like, the operation is invalidated, so that the reproduction is not performed without the user's knowledge. However, of course, this requires the user to hold properly, and in fact, the user may forget to turn on the hold function and perform unnecessary playback operations. is there. For this reason, useless power consumption often occurs.

Further, in the case of a composite device having a built-in audio reproduction function in a portable telephone device as described above, the useless reproduction operation is a very serious problem. That is, in the case of a mobile phone device, prolonged standby time and talk time are always expected issues. Therefore, useless power consumption of a built-in battery (dry battery, rechargeable battery) should be avoided as much as possible. It is said. And as described above, the unnecessary playback operation is performed,
It is a very important task to avoid such useless reproduction operation, since the standby time and the talk time as the telephone device are reduced.

[0007]

SUMMARY OF THE INVENTION In view of such circumstances, the present invention is directed to a composite device such as a portable audio reproducing device or a portable telephone device having an audio reproducing function, wherein audio reproducing sound is supplied to a headphone. It is an object of the present invention to prevent a device that is configured to listen to the information from being played and useless reproduction operation to consume power.

For this purpose, the reproducing apparatus of the present invention comprises a reproducing means for reproducing an audio signal, a connecting means for connecting headphones for outputting the audio signal reproduced by the reproducing means, and a connecting means for connecting the headphones to the connecting means. Detecting means for detecting whether or not the headphone is not connected to the connection means by the detecting means, and operating means for instructing the operation of the reproducing means. Comprises at least control means for performing control for stopping the operation of the reproducing means.

When the control means detects that the headphones are not connected to the connection means by the detection means, the control means performs control to turn off at least the power supply to the reproduction means. To do. Further, when the reproducing operation by the reproducing means is performed,
When the detecting means detects that the headphones are not connected to the connecting means, the control means stops the operation of the reproducing means and at least supplies power to the reproducing means. Control to turn off. Further, the control unit may treat an operation relating to the operation of the reproduction unit by the operation unit as an invalid operation while the detection unit detects that the headphones are not connected to the connection unit. To

[0010] The communication device further includes a communication device unit.
In the communication device unit, the audio signal reproduced by the reproduction unit is configured to be used as an incoming call notification sound, and the control unit is configured such that the headphone is connected to the connection unit by the detection unit. Even if it is detected that there is no incoming call, if there is an incoming call, it is possible to control the reproduction unit to operate so as to reproduce the audio signal as the incoming call notification sound.

In other words, according to the present invention, when no headphones are connected, the playback means is prevented from executing the audio playback operation, or the power supply is turned off, so that the user can not hear the playback sound. Avoid playback operations. In addition, in a state where the headphones are not connected, the operation of the operation unit can be invalidated, and unnecessary reproduction operation can be avoided.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described with reference to first to fourth embodiments.
An embodiment will be described. Note that the first embodiment is, for example, an example of a portable audio playback device.
The fourth embodiment is an example of a mobile phone device (multifunction device) having an audio playback function.

<First Embodiment> FIG. 1 is a block diagram showing a configuration of a music reproducing apparatus 1 according to a first embodiment. The music reproducing device 1 is a device in which a memory card 90 is detachably attached and which can reproduce an audio signal from the memory card 90.

The memory card 90 is a recording medium in which a nonvolatile memory chip such as a flash memory is built in a card-shaped casing, and can record various data such as audio data, video data, text data, and control data. It is. When used in the music reproducing device 1, it is assumed that the memory card 90 has recorded therein audio data as one or a plurality of music. The audio data is, for example, ATRAC3 (Adaptive Trans
Recorded after compression processing such as form Acoustic Coding 3).

The audio reproducing unit 4 includes a memory card 90
Is a part for reading out audio data from the memory card 90 when the is inserted. For this reason, the audio reproducing unit 4 is provided with a connector portion to which the memory card 90 is connected, an interface circuit for exchanging control signals, clocks, reproduced data, and the like with the memory card 90, and the like.

The audio processing unit 5 includes, for example, a DSP (Di-
It is a part that is formed by a digital signal processor and performs decoding processing, error correction processing, and the like on audio data read from the memory card 90 by the audio reproducing unit 4. As the decoding process, for example, a decoding process for the high-efficiency encoding of the ATRAC (registered trademark) 3 system is performed. The audio processing unit 5
By performing these necessary decoding processes and the like, for example,
The decoding is performed up to the digital audio data format of 1 kHz and 16-bit quantization.

The audio data decoded by the audio processing section is converted by a D / A converter 6 into an analog audio signal. The output analog audio signal is output to the headphone terminal 8 after being processed in an analog signal stage such as volume adjustment, equalizing, impedance adjustment, and power amplifier processing in the amplifier unit 7. Since the plug of the headphone 91 is connected to the headphone terminal 8, the user can listen to the audio signal such as music reproduced from the memory card 90 through the headphone 91. In this music playback device 1,
No speaker is provided, so that the user must always connect the headphones 91 to listen to music or the like to be reproduced.

The CPU 2 functions as a control section for controlling the entire music reproducing apparatus 1. The memory unit 3 is a RAM and an RO
The part as M is comprehensively shown, and the CP
It is used for storing work areas for various processes of U2, temporary data storage, processing coefficients, variables, and the like. Also R
The OM stores a control program executed by the CPU 2, fixed coefficients, set values, and the like. The operation unit 12 is provided with various operators for executing a reproduction operation of music and the like, and a user performs desired music reproduction by operating the operation unit 12. Specifically, a reproduction key, a pause key, a stop key, a fast forward key, a fast rewind key, a cue key, a power on / off key, and the like are prepared. As for the power operation, for example, a play key and a stop key may be shared. For example, when the playback key is pressed, the CPU 2 sends the key as an instruction to turn on the power and start playback.
Is recognized, and if a stop operation is performed,
It is used as an instruction to stop operations such as playback and turn off the power.
2 should be recognized.

The CPU 2 performs control for causing each unit to execute a required operation based on a user's operation on the operation unit 12 and an operation program stored in the memory unit 3. That is, the audio playback unit 4 controls data reading from the memory card 90, processing of the audio processing unit 5, and the like.

The display section 11 is composed of, for example, a liquid crystal panel, etc., and is a section for presenting a user with a reproduction operation status, an operation mode, a track number, a song title, reproduction time information and other various information. The CPU 2 supplies the display data to the display unit 11 based on the operation state, and executes the display operation.

The connection detecting section 9 is a section for detecting whether or not the headphone 91 is connected to the headphone terminal 8. The detection structure may be based on a mechanical switch, an optical sensor means, or an electrical detection circuit. The connection detecting unit 9 includes a CP
It supplies information on the presence or absence of connection to U2.

The power supply unit 10 is a unit that supplies an operating power supply voltage Vcc to each unit using a built-in battery such as a dry battery or a rechargeable battery as a power supply. For example, the power supply voltage Vcc is output from the audio reproducing unit 4, the audio processing unit 5, the D / A converter 6,
The power supply is used as an operating power source for the amplifier unit 7, the CPU 2, the memory unit 3, and the display unit 11. ON / OFF of supply of power supply voltage Vcc to each part
Turning off is controlled by a power control signal S1 from the CPU2. Further, the power supply unit 10 always supplies a standby voltage VST of a weak voltage level to the CPU 2,
Even when the power is turned off, the CPU 2 is in the standby state by the standby voltage VST, so that the operation of the operation unit 12 can be detected and the detection state of the connection detection unit 9 can be checked.

In the music reproducing apparatus 1 having such a configuration, C
The PU 2 controls the reproduction operation and the power on / off according to the connection status of the headphones 91. FIG. 2 shows a control process of the CPU 2 according to the connection status of the headphones 91.
Shown in

FIG. 2A shows C when the power is on.
FIG. 2B shows the processing of the CPU 2 when the power is off, that is, in the standby state. In the power-on state in which the power supply voltage Vcc is supplied to each unit, the CPU 2 checks the information from the connection detection unit 9 as step F101 in FIG. 2A, and the headphone 91 is connected to the headphone terminal 8. During this period, the process always proceeds to step F102. That is, in the loop of steps F101 and F102, the CPU 2 monitors the headphone connection status and the user's operation status. If the user has performed any operation from the operation unit 12, the CPU 2 proceeds from step F102 to step F1.
Proceeding to 03, a process corresponding to the detected operation is performed. For example, in the case of a reproduction operation, control is performed so that reproduction from the memory card 90 is started, and in the case of a fast-forward operation, control is performed such that fast-forward reproduction is performed.

If it is detected that the headphone 91 has been disconnected from the headphone terminal 8 while the power is turned on in step F101, the CPU 2 advances the processing to step F104. At that time, it is determined whether or not operations such as reproduction, fast forward, fast rewind, pause, and cueing access (hereinafter referred to as operations such as reproduction) are performed. If step F105
Executes the stop processing of those operations. If an operation such as reproduction is not performed, the process proceeds from step F104 to F106. In step F106, the supply of the power supply voltage Vcc is stopped by the control signal S1 to the power supply unit 10. That is, the power is turned off.

When the power is off and in the standby state,
The CPU 2 monitors the power-on operation of the user in step F108 in FIG. 2B. If the user has performed the power-on operation, the process proceeds to step F109 to detect whether or not the headphones 91 are connected based on information from the connection detection unit 9. Here, when it is detected that the headphones 91 are not connected, the operation of the user is determined to be invalid in step F110, and the process returns to step F108 without performing any processing corresponding to the operation. On the other hand, if the user performs a power-on operation, the process proceeds to step F10.
If it is determined in step 9 that the headphones 91 are connected, the process proceeds to step F111, where the supply of the power supply voltage Vcc from the power supply unit 10 to each unit by the control signal S1 is started, and the power is turned on. At this time, the CPU 2 itself is started from the standby state. Then, processing corresponding to the operation is performed in step F112. For example, if the play key also functions as the power key,
Control to start the reproduction operation is performed. After that, the process of FIG. 2A is performed.

By performing the above processing, the following operation is realized in the music reproducing apparatus 1 of this embodiment.

First, when the headphones 91 are unplugged when the power is turned on, operations such as reproduction are stopped, and the power is controlled to be turned off. That is, even if an operation such as playback is performed, or a playback operation or the like is performed thereafter, the user cannot listen to the playback sound because the headphones 91 are disconnected. Recognition of operations such as reproduction after the removal of the symbol is a wasteful operation, the operation is stopped, and the power is turned off.

When the power is turned off, even if a power-on operation is performed by the user, if the headphones 91 are not connected, the operation is invalidated and the power is not turned on. In other words, if the headphones 91 are not connected, the user cannot hear the reproduced sound even if the reproduction is performed with the power on, so that they are not executed as useless operations.

By these processes, it is possible to prevent the operation such as reproduction in a state where the user cannot listen to the reproduced sound, thereby preventing unnecessary power consumption. Thereby, loss of battery life can be eliminated.

Various modifications of the processing in FIG. 2 are conceivable. For example, when the headphones 91 are unplugged during an operation such as reproduction, the operation is stopped, but the power-off control may not be performed. Even stopping only operations such as useless reproduction is effective in reducing useless power consumption. As the power control, when the connection of the headphones 91 is detected, the power may be automatically turned on. That is, in this example, the connection / disconnection of the headphones 91 is treated as a power on / off operation.

<Second Embodiment> Next, as a second embodiment, an example of a portable telephone device having an audio reproducing function (multifunction device 20) will be described. FIG.
1 shows a block diagram of the configuration of FIG.

The multifunction device 20 includes a power supply unit 21, a music unit 30, and a telephone unit 40. The music unit 30 includes a CPU 3
1, a memory unit 32, an audio reproducing unit 33, an audio processing unit 34, a D / A converter 35, an amplifier unit 36, a mixer unit 37, and a headphone connection terminal 38. The music section 30 is capable of reproducing audio data such as music recorded on the memory card 90, and includes an audio reproducing section 33, an audio processing section 34, a D / A converter 35,
The amplifier section 36 and the headphone connection terminal 38 correspond to the audio playback section 4 and the audio playback section 4 in the music playback apparatus 1 shown in FIG.
Since the same operations as those of the audio processing unit 5, the D / A converter 6, the amplifier unit 7, and the headphone connection terminal 8 are performed, the description is omitted.

The CPU 31 controls the operation of each unit in the music unit 30. The memory unit 32 is the same as the memory unit 3 in FIG.
In the same manner as described above, the memory 31 includes a RAM and a ROM as storage areas necessary for the control operation of the CPU 31. Further, the CPU 31 is configured to be able to transmit and receive various control signals and notifications to and from the CPU 41 of the telephone unit 40.

In the music section 30, audio signals such as music reproduced from the memory card 90 can be heard by headphones 91 connected to the headphone connection terminal 38. It should be noted that also in this example, a speaker for outputting music is not provided, so that the user must always connect the headphones 91 when listening to music or the like to be reproduced.

Further, since it is a composite device of the portable telephone device and the reproducing device, it is necessary to allow the user to hear the ring tone of the portable telephone even when listening to music or the like through the headphones 91. For this reason, the mixer 37 is provided so that the ring tone is superimposed on the music being played back, so that even when listening to music through the headphones 91,
Allow users to hear the ringtone.

The telephone unit 40 includes a CPU 41 and a memory unit 4
2, antenna 43, RF unit 44, baseband processing unit 4
5, audio unit 46, microphone unit 47, call speaker unit 48,
A ringer sound source section 49, a ringer switch 50, a ringer speaker section 51, an operation section 53, a display section 54, and a connection detection section 22 are provided.

The CPU 41 mainly controls the operation of the telephone section 40. That is, it performs overall control of the voice communication operation and the packet communication operation as the mobile phone device, or the storage, management, user operation, display operation, and the like of various information. The memory unit 42 includes an RO used by the CPU 41 for various types of storage.
M and RAM are comprehensively shown, and information is stored / read out under the control of the CPU 41. The ROM is used, for example, to store operation programs for the CPU 41 to perform various controls, coefficients used for processing, and set values. The RAM is used for storing coefficients and setting values used for processing by the CPU 41 and as a work area for the CPU 41. The RAM is also used for storing a telephone number or the like registered by a user and for storing various data obtained by a data distribution service in a mobile phone system. Note that the RAM of the memory unit 42 is realized as a flash memory, a D-RAM, or the like as a specific form.

The operation section 53 is a part corresponding to an operation element such as a keypad and a jog dial provided on the housing of the multifunction device 20 and used for user operation.
1 executes a required control operation according to a user's operation using these operators. Note that it is also possible to input character information for message input or dial registration, and the CPU 41 performs transmission processing and storage processing in the memory unit 42 for the input character information.
Further, as the operation unit 53, various operation keys for a user to instruct an operation such as reproduction of the music unit 30 are provided. When an operation related to the operation of the music unit 30 is performed by the operation unit 53, the CPU 41 transmits the operation information to the CP.
The operation is transmitted to U31, and the music section 30 performs required operations such as reproduction under the control of the CPU 31.

The display unit 9 is formed of, for example, a liquid crystal panel or the like, and presents various information to the user under the control of the CPU 41. For example, presentation of information necessary for a mobile phone device, such as a telephone number at the time of calling or receiving a call, a radio wave reception status,
Used to present information received by the data distribution service to the user. When an operation such as reproduction is performed in the music unit 30, a reproduction operation status, an operation mode, a track number, a song name, reproduction time information, and other various information are displayed. That is, the CPU 31 transfers necessary display data to the CPU 41 in accordance with an operation such as reproduction, and
41 supplies the display data to the display unit 54 to execute the display operation.

The antenna 43, the RF unit 44, the baseband processing unit 45, and the voice unit 46 execute communication processing during voice communication or packet communication as a portable telephone device. RF unit 4
In No. 4, reception / demodulation processing at a selected required frequency or modulation processing at the time of transmission, for example, a TDMA method (Time D
ivision Multiplex Access). That is, at the time of transmission, the baseband processing unit 4
5 is subjected to TDMA encoding and modulation processing by a required frequency, and the transmission signal is amplified and transmitted from the antenna 43. At the time of reception, the radio wave received by the antenna 43 is amplified, subjected to reception / demodulation processing in a required frequency channel, TDMA decoding, and the like, demodulated as a baseband signal, and supplied to the baseband processing unit 45.

At the time of reception, the baseband processing unit 45
Predetermined signal processing is performed on the signal demodulated up to the baseband signal in the F unit 44. During a voice call, the signal decoded by the baseband processing unit 45 is transmitted to the voice unit 46.
And output from the call speaker unit 48. The signal input from the microphone unit 47 is supplied to the baseband processing unit 45 through the processing of the audio unit 46, subjected to predetermined signal processing, further processed by the RF unit 44, and transmitted. At the time of packet communication, the received packet data is supplied to the CPU 41 via the baseband processing unit 45, stored in the memory 42, or displayed on the display unit 54.

The ringer tone generator 49 is a part for generating a sound signal as an incoming sound as an electronic sound, an electronic sound melody, or a message sound under the control of the CPU 41. The signal is supplied to the ringer speaker unit 51 via the terminal and output. When the ringer switch 50 is connected to the h terminal, the sound signal of the ring tone is supplied to the mixer 37, and is superimposed on the music or the like being reproduced as described above (or temporarily). (Reproduced music is muted), supplied to the headphone 91, and a notification sound is output to the user. When an incoming call is received from the mobile phone, the CPU 1 causes the ringer sound source unit 49 to output an audio signal as a ring tone and notifies the user of the incoming call.

The connection detecting section 22 detects whether a headphone 91 is connected to the headphone terminal 38 or not. The detection structure may be based on a mechanical switch, an optical sensor means, or an electrical detection circuit. The connection detection unit 22 includes:
The connection information is supplied to the CPU 41.

The power supply unit 21 supplies an operating power supply voltage Vcc to each unit using a built-in battery such as a dry battery or a rechargeable battery as a power supply. For example, the power supply voltage Vcc1 is supplied to the telephone unit 40, and the power supply voltage Vcc2 is supplied to the music unit 30. Power supply voltage V for telephone unit 40
The on / off of the supply of cc1 and the on / off of the supply of the power supply voltage Vcc2 to the music section 30 are controlled by a power supply control signal S1 from the CPU 41. Note that the two power sources shown as the power supply voltages Vcc1 and Vcc2 indicate that the telephone unit 40 and the music unit 30 can be individually turned on / off. Actual voltage values of voltages Vcc1 and Vcc2 or DC
It does not correspond to the number of systems of the supply voltage generated by the / DC converter.

The power supply section 21 always supplies a standby voltage VST of a weak voltage level to the CPUs 31 and 41. Even when the power is off, the CPUs 31 and 41 are in a standby state by the standby voltage VST. Thus, the detection of the operation of the operation unit 53 and the detection status of the connection detection unit 22 can be checked.

In the multifunction device 20 having such a configuration, the CPU 41 of the telephone unit 40 controls the reproduction operation of the music unit 30 and the power on / off control in accordance with the connection status of the headphones 91. FIG. 4 shows a control process for the music unit 30 by the CPU 41 according to the connection status of the headphones 91.
Shown in In the case of this example, the user operation from the operation unit 53 is detected by the CPU 41. Further, a detection signal of the connection status of the headphones 91 by the connection detection unit 22 is supplied to the CPU 41. Therefore, the CPU 41 controls the power supply of the music unit 30 and the CPU 3 according to the user operation and the headphone connection status.
1 is to be instructed. The process in FIG. 4 is a process during a power-on state of the telephone unit 40, that is, a period during which the power supply unit 21 is supplied with the power supply voltage Vcc1. Therefore, when the user performs an operation on the telephone unit 40 or receives an incoming call, control processing for each unit as a normal telephone operation is performed. In FIG. 4, the processing for the telephone section 40 is omitted, and only the control processing for the music section 30 by the CPU 41 is shown.

As a process of the CPU 41 of the telephone section 40, in step F201 of FIG. 4, it is detected whether or not the headphones 91 are connected to the headphone connection terminal 38 based on a detection signal from the connection detection section 22. Here, during the period in which it is detected that the headphones 91 are not connected, the process proceeds to step F202. In step F202, it is monitored whether or not an operation related to the operation of the music unit 30 has been performed as a user operation from the operation unit 53. For example, it detects whether or not an operation key for instructing an operation such as reproduction is pressed. In this case, even if the user operates the music unit 30, C
The PU 41 advances the process to step F203, invalidates the operation, and does not perform the corresponding process.

On the other hand, when it is detected that the headphones 91 are connected to the headphone connection terminal 38, the CPU 41 advances the processing to step F204 at that time, and
Turn on the power. That is, the supply of the power supply voltage Vcc2 from the power supply unit 21 to the music unit 30 is started by the control signal S1, and the CPU 31 is started from the standby state to the power-on state.

While the music section 30 is in the power-on state, the CPU 41 performs the processing after step F205. First, in step F205, a detection signal from the connection detection unit 22 is confirmed, and the headphones 91 are connected to the headphone terminal 38.
Is connected or not. During the period when the headphones 91 are connected, steps F205 to F206
To monitor the user's operation on the music section 30. When the user performs an operation to instruct an operation such as reproduction in the music unit 30 using the operation unit 53, the CPU 41
Advances the process to step F207, and transmits operation information to the CPU 31 assuming that the operation is valid. Thereby, the CPU 31 of the music unit 30 recognizes the operation of the user and executes necessary control processing. For example, control is performed such that reproduction of music or the like from the memory card 90 is executed in response to a reproduction operation, or reproduction is temporarily stopped in response to a pause operation.

Here, the CPU 41 of the telephone section 40 also controls the ringer switch 50 in accordance with the operation state of the music section 30. That is, the operation state executed by the music unit 30 in accordance with the transmission of the operation information in step F207 in response to the user operation is determined in step F208. If the determined operation state is the stop state, the ringer switch 50 is connected to the s terminal in step F210. In the stopped state, the user is not wearing the headphones 91 or is in a state where the user can sufficiently hear external sounds even when the headphones 91 are worn. Therefore, by outputting the ring tone from the ringer speaker 51, the user can be notified of the incoming call.

On the other hand, if the operation state determined in step F208 is an operation such as reproduction, the process proceeds to step F209 to connect the ringer switch 50 to the h terminal. The sound signal generated as a ringtone by this is supplied to the mixer 37
Is output from the headphones 91 while being superimposed on the music or the like being played back. This means that the user is listening to music or the like through the headphones 91 or at least fast-forward, cue,
In a situation in which attention is paid to the output from the headphones 91 due to a pause or the like, the user can notice the incoming call by making the ringtone audible from the headphones 91.

As described above, when the music section 30 is in the power-on state, the CPU 41 transmits user operation information to the CPU 31 and causes the CPU 31 to execute required control. Here, if the user
When 1 is removed from the headphone connection terminal 38, it is detected in step F205 that the headphones 91 are not connected. At this time, the process of the CPU 41 proceeds to step F211 and thereafter.

First, in step F211, it is determined whether or not operations such as reproduction are performed in the music section 30, and if the operations such as reproduction are performed, stop processing of those operations is executed in step F212. . That is, a stop instruction is transmitted to the CPU 31 to stop the operation executed in the music unit 30. In step F213, the ringer switch 50 is set to s.
Connect to terminal. This is because the ringtone is output from the ringer speaker 51 after the headphone 91 is disconnected. Then, the process proceeds to step F214. If an operation such as reproduction is not performed in the music unit 30, the process proceeds from step F211 to F214. Step F
At 106, the control signal S1 to the power supply 21
The supply of the power supply voltage Vcc2 to the music section 30 is stopped.
That is, the power of the music section 30 is turned off. Thereafter, the process returns to step F201 to perform the processing when the music unit 30 is in the power-off state as described above.

By performing the above-described processing, the following operation is realized in the multifunction peripheral 20 of this example.

First, when the headphones 91 are unplugged while the power of the music section 30 is turned on, operations such as reproduction in the music section 30 are stopped, and the power of the music section 30 is controlled to be turned off. That is, even if an operation such as reproduction is performed, or even if a reproduction operation or the like is performed thereafter, the user cannot listen to the reproduced sound because the headphones 91 are disconnected, so that the headphones Recognition of operations such as reproduction after 91 is removed is a useless operation, and the operation of the music section 30 is stopped, and the power is turned off.

The power on / off of the music section 30 is controlled in accordance with the connection and disconnection of the headphones 91.

When the headphones 91 are not connected and the music section 30 is powered off, even if the user performs an operation on the music section 30, the operation is invalidated. In other words, if the headphones 91 are not connected, the user cannot hear the reproduced sound even if the reproduction is performed with the power on, so that they are not executed as useless operations.

By these processes, it is possible to prevent the operation such as reproduction in a state where the user cannot listen to the reproduced sound, thereby preventing unnecessary power consumption.

Various modifications of the processing in FIG. 4 are conceivable. For example, when an operation key for performing a power operation on the music unit 30 is provided, or when a play key / stop key is also used as a power on / off operation key, when the user performs a power operation, Headphones 9
1 may be determined whether or not the operation is connected, and accordingly, it may be determined whether the operation is enabled or disabled.

When the headphones 91 are removed, the power of the music section 30 is turned off. However, for example, the operation of the music section 30 such as reproduction is stopped.
An example in which the power supply is kept on may be considered. Even stopping only operations such as useless reproduction is effective in reducing useless power consumption.

It is to be noted that a technique for notifying a user of an incoming call by vibrating the main body of the portable telephone device is also known, but a system utilizing this is also conceivable. For example, when the headphone 91 is connected and an operation such as reproduction is performed, the incoming call may be notified to the user by vibration.

<Third Embodiment> Next, an example of a multifunction device 20 according to a third embodiment will be described with reference to FIGS. FIG. 5 shows the configuration of the multifunction device. In this case, the basic configuration is the same as the example of FIG. However, in this example, the detection information of the connection detection unit 22 is also detected by the CPU 11 on the music unit 30 side, and the power on / off control for the power supply unit 21 is performed by the control signal S1 from the CPU 31. This is different from the example of FIG.

In this example, the power control of the music section 30 is executed by the CPU 31 of the music section 30. Further, the CPU 41 of the telephone section 40 performs necessary processing according to the operation state of the music section 30 and the power supply state. The processing of the CPUs 31 and 41 of this example will be described with reference to FIGS.

FIG. 6 shows the processing of the CPUs 31 and 41 when the music section 30 is turned off from the power on state. While the power of the music unit 30 is turned on, the CPU 31 of the music unit monitors the headphone connection status based on the detection signal from the connection detection unit 22 in step F401. Here, upon detecting that the headphones 91 have been removed, the CPU 31 notifies the CPU 41 of the telephone unit that the music unit 30 is to be powered off, in step F402. Then, in step F403, it is determined whether or not an operation such as reproduction is currently being performed. If the operation is being performed, stop processing of the operation is executed in step F404. Then, in step F405, the supply of the power supply voltage Vcc2 from the power supply unit 21 is stopped by the control signal S1, and the music unit 30 is turned off. At this time, the CPU 31 itself is also in the standby state.

On the other hand, the CPU 41 of the telephone
When the power-off notification is received from the base station 31, the process proceeds to step F3.
From 01 to F302, the mode is set to invalidate the user operation on the music section 30 thereafter. That is, even if the user performs an operation of instructing the operation of the music unit 30 using the operation unit 53, the operation is regarded as an invalid operation. In step F303, the ringer switch 50 is connected to the s terminal, and the ring tone is output from the ringer speaker 51.

In the period after the power of the music section 30 is turned off as described above, the CPU 41 of the telephone section receives the detection signal from the connection detection section 22 as shown in step F351 of FIG. The connection status is monitored. When detecting that the headphones 91 are connected, the CPU 41 advances the process to step F352, and transmits an instruction to turn on the power to the CPU 31 of the music unit 30. In step F353, a mode is set in which the user operation regarding the operation of the music unit 30 is enabled.

When the CPU 41 on the music unit side receives an instruction to turn on the power from the CPU 41, the process proceeds from step F451 to F452, and the supply of the power supply voltage Vcc2 from the power supply unit 21 is started by the control signal S1. In addition, the CPU 31 itself is started in response to this.

After the power of the music section 30 is turned on, the CPU 41 of the telephone section proceeds to step F354.
Then, the user operation from the operation unit 53 is monitored. If the user has performed an operation of instructing an operation such as reproduction on the music unit 30 using the operation unit 53, the CPU 41 advances the process to step F355, and determines that the operation is valid.
The operation information is transmitted to the CPU 31 of the music section. Accordingly, the CPU 31 of the music section 30 recognizes the operation of the user in step F453, proceeds to step F454, and executes a necessary control process according to the operation. For example, control is performed such that reproduction of music or the like from the memory card 90 is executed in response to a reproduction operation, or reproduction is temporarily stopped in response to a pause operation.

The CPU 41 of the telephone section 40
Control of the ringer switch 50 is also performed according to the operation state of 0. That is, the operation state executed by the music unit 30 in accordance with the transmission of the operation information in step F355 according to the user operation is determined in step F356. If the determined operation state is the stop state, the ringer switch 50 is connected to the s terminal in step F358. On the other hand, if the operation state determined in step F356 is an operation such as reproduction, the process proceeds to step F357 and the ringer switch 50 is set to h.
Connect to terminal. This process has the same meaning as the control of the ringer switch 50 described with reference to FIG.

By performing the above processing, the same effects as in the case of the above-described second embodiment can be obtained in the case of the third embodiment. Also, various modifications of the processing can be considered as in the case of the second embodiment. Further, the CPU 41 of the telephone section 40 includes the headphones 9.
There may be a configuration in which the connection status cannot be directly monitored. That is, the monitoring of the detection signal from the connection detection unit 22 is performed by the CPU.
31 is executed, and the CPU 31
Is notified of the detection status.

<Fourth Embodiment> Next, an example of a multifunction device 20 according to a fourth embodiment will be described. FIG. 8 shows the configuration of the multifunction device 20 of this example. The basic components are the same as those in FIG. 3, and the same blocks are denoted by the same reference numerals and description thereof is omitted. This example differs from FIG. 3 in that the music played by the music section 30 can be used as an incoming notification sound, and a ringer mode switch 52 is added as a constituent element. Has become.

In the normal ringer mode in which the ringer mode switch 52 is connected to the R terminal, an audio signal generated from the ringer tone generator 49 is output from the ringer speaker 51 or the headphone 91 as a ring tone. On the other hand, in the music ringer mode in which the ringer mode switch 52 is connected to the A terminal, an audio signal reproduced from the memory card 90 is output from the ringer speaker 51 or the headphones 91 as a ringtone.

In the case of this example, the power supply control of the music section 30, the processing for enabling / disabling the operation on the music section 30, and the switching control of the ringer switch 50 are the same as those in FIG. Here, since the configuration is such that the playback sound from the memory card 90 can be used as the ring tone, the processing of the CPU 41 upon an incoming call will be described with reference to FIG. The user sets the normal linger mode and the music linger mode according to his / her preference. For example, the operation unit 53 can perform a mode setting operation.
Can change the mode state according to the mode setting operation.

When detecting an incoming call in step F501, the CPU 41 determines in step F502 whether the current mode is the music linger mode or the normal linger mode. In the case of the music linger mode, step F504
Then, the ringer mode switch 52 is connected to the A terminal. Then, in step F504, it is confirmed whether or not the music unit 30 is currently in the power-off state. The music section 30
Is controlled based on the processing of FIG. 4 as described above.

If the music section 30 is powered off,
The process advances to step F505 to control the music unit 30 to be in the power-on state. That is, the supply of the power supply voltage Vcc2 from the power supply unit 21 to the music unit 30 is executed. And step F5
Proceed to 06. If the power of the music section 30 is ON, the process proceeds from step F504 to F506.

In step F506, the CPU 41
It instructs U31 to play the ringer music. In response to this, the CPU 31 on the music section 30 side reads the memory card 90
The music signal is supplied to the ringer switch 50 via the ringer mode switch 52, and the ringer speaker 51 or the headphone is supplied according to the connection state of the ringer switch 50 at that time. It will be output from 91 as a ringtone. This allows the user to recognize the incoming call. In addition,
The music reproduced as the ringtone may be stored on the memory card 90 as a music track dedicated to the incoming call, or a user may designate a certain track among the tracks recorded on the memory card 90 in advance. It may be something. Or, whatever the memory card 90 is loaded, the track number may be fixedly set so that the first track is always used for a ring tone. For example, when the head of the first track is suddenly reproduced during an operation such as stop or reproduction, the user recognizes it as a ring tone.

When the user hears the ring tone, the user performs an incoming call operation and proceeds to a call operation. The CPU 41 proceeds from step F507 to F508 in response to the incoming call operation. To stop the playback of. The CPU 31 stops the reproduction in response thereto. That is, the ringtone stops. Then, the CPU 41 turns off the power of the music section 30 in step F509. That is, the power of the music unit 30 is turned off since the reproduction operation of the music unit 30 does not need to be executed to shift to the call. Then, in step F510, an incoming call process, specifically, a communication connection is made according to the incoming call, and a process for a call operation is executed.

If the normal ringer mode has been set when there is an incoming call, the process proceeds from step F502 to F511. In step F511, the CPU 41 connects the ringer mode switch 52 to the R terminal. Then, in step F512, a ringer sound signal is generated from the ringer tone generator 49. The reproduced audio signal is supplied to the ringer switch 50 via the ringer mode switch 52,
A ringing tone is output from the ringer speaker 51 or the headphone 91 according to the connection status of the ringer switch 50 at that time. This allows the user to recognize the incoming call.

Subsequently, upon detecting a user's incoming call operation, the CPU 41 first checks in step F513 whether or not the music section 30 is performing operations such as reproduction. Since the operation of the music unit 30 is not necessary when a subsequent call is executed, if the music unit 30 is operating, the process proceeds to step F508 and the CPU 31 is instructed to stop operations such as reproduction. In step F509, the power of the music section 30 is turned off, and the incoming call processing in step F510 is performed.

If it is determined in step F514 that the music unit 30 is not operating, then in step F514 the music unit 3
It is determined whether or not 0 is a power-off state. Music Club 3
If 0 is in the power-on state, the power of the music section 30 is turned off in step F509, and the incoming call processing in step F510 is performed.

If it is determined in step F515 that the music section 30 is in the power-off state, the flow advances to step F510 to perform an incoming call process.

By performing the above processing,
In this example, music and the like reproduced from the memory card 90 can be used as a ringtone, and the music section 30 is in a state where the power of the music section 30 is turned on / off according to the connection state of the headphones 91 by the above-described processing of FIG. However, the reproduced sound from the memory card 90 can be used as a ringtone. That is, the music section 30
Even when the power is off, the power is temporarily turned on at the time of an incoming call to reproduce the ringtone. When a call is executed by the incoming call processing, the music unit 30 is controlled to be in the power-off state, so that useless power consumption is avoided. Therefore, the user sets the ringer tone generator 4 as the ring tone.
In addition to the electronic sound and the ring tone, any or fixed reproduction music can be used from 9 and the music unit 30 does not uselessly consume power.
It becomes suitable.

Although various examples have been described above as embodiments, the present invention can be embodied in various other embodiments. First, the music playback device 1 of the first embodiment,
-In the music section 30 of the fourth embodiment, the memory card 9
0 is used as a recording medium to reproduce music or the like, but a corresponding recording medium may be an optical disk, a magneto-optical disk, a magnetic disk, a magnetic tape, or another type of memory card. Of course, not only a portable recording medium but also a solid-state memory or a hard disk fixedly arranged inside the apparatus may be used as a recording medium for music or the like. Further, the multifunction device is not limited to a multifunction device having a music reproduction function and a telephone function, but may be any device having a music reproduction function and other functions. Further, as the reproduction function in the present invention, for example, not only reproduction from a recording medium, but also a function of demodulating and reproducing and outputting audio broadcasted in a radio broadcast, a digital broadcast, or the like, or a function of distribution by wireless communication or wired communication A device that reproduces and outputs audio data may be used.

[0085]

As can be understood from the above description, according to the present invention, at least the operation of the reproducing means is stopped during the period in which it is detected that the headphones are not connected to the connecting means for connecting the headphones. Alternatively, the power supply to the reproducing means is turned off. As a result, useless operation is performed by the reproducing means in a state where the user cannot hear the reproduced sound, that is, unnecessary power consumption is avoided. Therefore, in a portable device or the like using a dry battery or a rechargeable battery as a power source, it is possible to prevent the useless power consumption from shortening the battery life. For this reason, it is very useful when the purpose is to increase the operable time as an audio playback device or to lengthen the standby time or talk time in a mobile phone device having an audio playback function. Also, when the headphones are unplugged during the playback operation, for example, by stopping the playback operation or turning off the power supply in accordance with the state in which the user cannot hear the playback sound,
This is effective for preventing unnecessary power consumption.

Further, during the period in which it is detected that the headphones are not connected, the operation relating to the operation of the reproducing means by the operation means may be treated as an invalid operation, or the power consumption due to useless operation may be avoided. It is effective for

In the case where a communication device is further provided so that an audio signal reproduced by the reproducing means can be used as an incoming call notification sound, a period during which headphones are not connected, that is, the reproducing means is stopped or the power supply is stopped. If there is an incoming call even during the off period, the playback means is activated to play the audio signal as the incoming notification sound, so that the incoming notification sound using the playback sound is executed. We can make use of the functions we can do.

[Brief description of the drawings]

FIG. 1 is a block diagram of a music playback device according to a first embodiment of the present invention.

FIG. 2 is a flowchart of a process according to the first embodiment.

FIG. 3 is a block diagram of a multifunction peripheral according to a second embodiment of the present invention.

FIG. 4 is a flowchart of a process according to a second embodiment.

FIG. 5 is a block diagram of a multifunction peripheral according to a third embodiment of the present invention.

FIG. 6 is a flowchart of a process according to a third embodiment.

FIG. 7 is a flowchart of a process according to the third embodiment.

FIG. 8 is a block diagram of a multifunction peripheral according to a fourth embodiment of the present invention.

FIG. 9 is a flowchart of a process according to a fourth embodiment.

[Explanation of symbols]

1 Music player, 2, 31, 41 CPU, 3, 3
2,42 memory unit, 4,33 audio playback unit,
5,34 audio processing unit, 8,38 headphone connection terminal, 9,22 connection detection unit, 10,21 power supply unit,
11, 54 display unit, 12, 53 operation unit, 20 multifunction device, 30 music unit, 37 mixer unit, 40 telephone unit, 4
3 antenna, 44 RF section, 45 baseband processing section, 46 audio section, 47 microphone section, 48 call speaker section, 49 ringer sound source section, 50 ringer switch, 51
Ringer speaker section, 52 Ringer mode switch, 90
Memory card, 91 headphones

Claims (5)

[Claims] 1. A reproducing means for reproducing an audio signal, a connecting means for connecting headphones for outputting an audio signal reproduced by the reproducing means, and detecting whether or not the headphones are connected to the connecting means. Detecting means, operating means for instructing the operation of the reproducing means, and a period during which the detecting means detects that the headphones are not connected to the connecting means,
A playback device, comprising: at least control means for performing control for stopping the operation of the playback means. 2. The control means according to claim 1, wherein:
2. The reproducing apparatus according to claim 1, wherein when it is detected that the headphones are not connected to the connecting means, at least control for turning off power supply to the reproducing means is performed. 3. When the detecting means detects that the headphones are not connected to the connecting means during the reproducing operation by the reproducing means, the control means: 2. The reproducing apparatus according to claim 1, wherein the operation of the reproducing unit is stopped, and control for turning off at least power supply to the reproducing unit is performed. 4. The control means according to claim 1, wherein:
2. The reproduction according to claim 1, wherein an operation relating to an operation of the reproduction unit by the operation unit is treated as an invalid operation during a period in which it is detected that the headphones are not connected to the connection unit. apparatus. 5. The communication device further comprising a communication device, wherein the communication device is configured to be able to use an audio signal reproduced by the reproduction device as an incoming call notification sound. Even when the headphone is not connected to the connection means during the period, when there is an incoming call, the reproduction means is operated to reproduce the audio signal as the ringing tone. The playback device according to claim 1, wherein control is performed to execute the following.