JPH11146459A - Communication equipment, communication controller and communication control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an equipment size and to reproduce many pieces of music. SOLUTION: When a user supplies a control instruction so as to remotely control audio equipment 5, mobile terminal equipment 3 generates operation control data and sends them out through a public telephone network 2 to the audio equipment 5. In the meantime, the mobile terminal equipment 3 performs audio reproduction based on audio transmission data sent out from the audio equipment 5 through the public telephone network 2 and outputs audio signals. Thus, since a large-sized player main body is arranged at a remote location of respective households or the like even though it can be constituted in a small size compared with conventional portable player such as a portable cassette tape player, a portable CD player and a portable MD player, etc., a portable equipment part is made light in weight and many pieces of the music are reproduced by continuously reproducing plural recording media (cassette tapes, CDs and MDs, etc.). Also, it can be made almost common to a present portable player except for a calling operation or the like and easy operability is secured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device, a communication control device, and a control method for a communication device, and more particularly to a communication device for performing bidirectional communication via a wireless communication line, a communication control device, and a control method for the communication device. About.

[0002]

2. Description of the Related Art Conventionally, cassette tape players and CDs
2. Description of the Related Art Portable headphone stereo playback devices such as (Compact Disc) players and MD (Mini Disc) players are known.

[0003]

The above-mentioned conventional portable headphone stereo reproducing apparatus requires a standardized information recording medium such as a cassette tape, CD or MD. It was to be regulated by the media. In addition, since the capacity of information that can be recorded on these information recording media is limited, it is necessary to carry a large number of recording media in order to reproduce a large number of music pieces, which hinders portability. There was a point.

An object of the present invention is to provide a portable communication device capable of reproducing a large number of songs while reducing the size of the device, a communication control device for performing communication control of the communication device, and a communication control device. It is to provide a method.

[0005]

According to an aspect of the present invention, there is provided a communication apparatus for performing two-way communication with an audio reproducing apparatus via a communication line. Remote operation means for giving a control instruction by a user to perform remote control of the device;
An operation control data transmitting unit that generates operation control data based on the operation of the user in the remote operation unit and transmits the operation control data to the audio reproduction device via the communication line; Playback means for performing audio playback based on the transmitted audio transmission data and outputting an audio signal;
It comprises.

According to the first aspect of the present invention, when a user gives a control instruction to perform remote control of an audio reproducing device by a remote operation unit, the operation control data sending unit generates operation control data and transmits the communication control data. The data is transmitted to the audio reproducing device via a line. On the other hand, the reproduction means reproduces audio based on audio transmission data transmitted from the audio reproduction device via the communication line, and outputs an audio signal.

According to a fifth aspect of the present invention, when a communication device performs bidirectional communication with an audio reproduction device via a communication line at least partly a wireless communication line, communication control is performed on the audio reproduction device side. A drive control means for detecting a call state of the communication device via the communication line, and outputting a drive control signal to put the audio reproduction device into a drive state; and The communication device generates operation control data based on the original operation control data transmitted through the communication line to perform remote control of the audio reproduction device, and generates operation control data to perform remote control of the audio reproduction device through the communication line. And operation control means for transmitting the data.

According to the fifth aspect of the present invention, the drive control means detects a call state of the communication device via the communication line and outputs a drive control signal to set the audio reproduction device to the drive state. . The operation control means generates operation control data to perform remote control of the audio reproduction device based on the original operation control data transmitted through the communication line by the communication device to perform remote control of the audio reproduction device,
Transmit via a communication line.

According to a sixth aspect of the present invention, there is provided a communication control device for performing communication control when a communication device performs bidirectional communication with an audio reproducing device via a wireless communication line,
A drive control unit that outputs a drive control signal to detect the calling state of the communication device and set the audio playback device to a drive state, and the communication device transmits the drive control signal to perform remote control of the audio playback device. Operation control means for generating operation control data for performing remote control of the audio reproducing apparatus based on the original operation control data, and transmitting the generated operation control data via a communication line.

According to the sixth aspect of the present invention, the drive control means detects a calling state of the communication device and outputs a drive control signal to the audio reproducing device so as to put the audio reproducing device into the driving state. The operation control means generates operation control data for performing remote control of the audio reproduction apparatus based on the original operation control data transmitted by the communication apparatus for performing remote control of the audio reproduction apparatus, and outputs the operation control data via the communication line. To send to.

The invention according to claim 8 is a communication control device for performing communication control when the communication device performs bidirectional communication with a controlled device that can be remotely controlled via a wireless communication line, A drive control unit that outputs a drive control signal to detect a calling state of the communication device and put the controlled device into a drive state; and a source transmitted by the communication device to perform remote control of the controlled device. Operation control means for generating operation control data to perform remote control of the controlled device based on the operation control data, and transmitting the generated operation control data via a communication line;
It comprises.

According to the present invention, the drive control means detects the calling state of the communication device and outputs a drive control signal to the controlled device so that the controlled device is driven. The operation control means generates operation control data for performing remote control of the controlled device based on the original operation control data transmitted by the communication device for performing remote control of the controlled device, and sends out the operation control data via the communication line.

According to a tenth aspect of the present invention, there is provided a communication control method for a communication device for performing two-way communication with an audio reproduction device via a communication line, wherein the method is performed to perform remote control of the audio reproduction device. Generating operation control data based on the user's operation and transmitting the operation control data to the audio reproduction device via the communication line; and transmitting audio from the audio reproduction device via the communication line. And a reproducing step of reproducing audio based on the data.

According to the tenth aspect of the present invention, in the operation control data transmitting step, the operation control data is generated based on a user operation performed to remotely control the audio reproducing apparatus, and the operation control data is transmitted via the communication line. Send it to the audio playback device. In the reproduction step, audio reproduction is performed based on audio transmission data transmitted from the audio reproduction device via the communication line.

The invention according to claim 11 is a communication control method performed when a communication device performs two-way communication with an audio reproducing device via a wireless communication line, and detects a call state of the communication device. And a drive control step of bringing the audio playback device into a drive state, and an operation of performing remote control of the audio playback device based on original operation control data transmitted by the communication device to perform remote control of the audio playback device. And a control step.

According to the eleventh aspect of the present invention, the driving control step detects the calling state of the communication device and sets the audio reproducing device to the driving state. The operation control step performs remote control of the audio reproduction device based on the original operation control data transmitted by the communication device to perform remote control of the audio reproduction device.

According to a twelfth aspect of the present invention, there is provided a communication control method for performing bidirectional communication between a communication device and a controlled device that can be remotely controlled via a wireless communication line, wherein A driving control step of detecting a call state and setting the controlled device in a driving state, and performing a remote control of the controlled device via the wireless communication line based on original operation control data transmitted by the communication device to perform remote control of the controlled device. And an operation control step of performing remote control of the controlled device.

According to the twelfth aspect of the present invention, the driving control step detects the calling state of the communication device and sets the controlled device to the driving state. The operation control step performs remote control of the controlled device via a wireless communication line based on the original operation control data transmitted by the communication device to perform remote control of the controlled device.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the drawings. First Embodiment FIG. 1 shows a schematic configuration diagram of a case where a portable playback device (mobile communication device) is used to construct a remote playback system using audio equipment arranged at home via a public telephone network.

The remote playback system 1 has the function of a portable telephone, generates original playback control data DPC0, transmits it via the public telephone network 2, and transmits transmission data DRC transmitted via the public telephone network 2. A mobile terminal device 3 that receives and reproduces a stereo signal, and reproduction control data DPC corresponding to original reproduction control data DPC0 transmitted from the mobile terminal device 3
A communication adapter 4 for generating and outputting audio equipment control data DCT based on the audio data DAD and outputting the audio data DAD output from the audio equipment to be described later via the public telephone network 2, and an audio input via the communication adapter 4 An audio device 5 for performing reproduction control based on the device control data DCT and transmitting audio data DAD reproduced from a recording medium such as a CD or MD to the mobile terminal device 3 via the communication adapter 4 and the public telephone network 2; It is provided with.

The public telephone network 2 is roughly divided into the mobile telephone network 1
0 and the fixed telephone network 11, and the mobile telephone network 10
Is a base station that is connected to the mobile terminal device 3 via radio and performs resource management and the like of a radio channel, a base station control function that performs radio control and the like on the base station 12 where the mobile terminal device 3 is located, The mobile station 3 is provided with a control station 13 having a call control function for providing a communication service directly to the mobile terminal device 3 via the communication terminal 12.

FIG. 2 shows a schematic block diagram of a mobile terminal device. The mobile terminal device 3 includes: a shared antenna unit 22 including a shared antenna 20 and a duplexer 21;
A transmission unit 25 including a 4-shift QPSK modulator 23 and a high-efficiency linear power amplifier 24;
A diversity receiver 29 comprising a first receiver 26 connected to a duplexer 21 and a second receiver 28 connected to a receiving antenna 27, a QPSK demodulator 30, and a carrier of a peripheral cell are monitored. A receiving unit 32 composed of a high-speed switching synthesizer (DLPS) 31 capable of switching the frequency as fast as possible, and a W-CDM for multiplexing / demultiplexing a speech code, a control signal, and a synchronization signal
An A (Wide band Code-Division Multiple-Access) processing circuit 33 and a digital signal output from the W-CDMA processing circuit 33 under the control of a control unit described later are converted into a stereo signal processing circuit 38 or a CODEC (codec / decoder) 37 described later. A switching circuit 34 for outputting to the microphone 35 and an error correction function for reducing the effects of fading and the like.
A CODEC 37 for encoding the input audio signal, decoding the output digital signal output from the W-CDMA processing circuit 33 and outputting it to the speaker 36;
A stereo signal processing circuit 38 which converts an output digital signal output from the CDMA processing circuit 33 into a stereo audio signal and outputs the stereo audio signal; a control unit 39 for controlling the entire mobile terminal device 3; A display operation section 40 for displaying various data and performing various operations.

The π / 4 shift QPSK modulator 23 includes a waveform shaping section 41 for shaping the waveform, and an RF band quadrature modulator 42 for orthogonally modulating the waveform shaped by the waveform shaping section 41. It is configured. FIG. 3 shows a schematic block diagram of a stereo signal processing circuit. The stereo signal processing circuit 38 removes unnecessary components included in the output digital signal output from the W-CDMA processing circuit 33, and converts the signal sampling frequency to a higher value. D / A converter 46 which performs digital / analog conversion of the signal and converts it to an analog audio signal and outputs the signal.
And an audio circuit 47 that converts an analog audio signal into a stereo audio signal and outputs the stereo audio signal.

FIG. 4 is an explanatory diagram of a processing sequence of the remote reproduction system. When the user operates the dial button 3A (see FIG. 1) of the display operation unit 40 to issue a call instruction, the control unit 39 controls the W-CDMA processing circuit 33 to output a control signal. . This control signal is supplied to the waveform shaping section 41 of the π / 4 shift QPSK modulator 23.
After performing the RF band quadrature modulation by the RF band quadrature modulator 42, the signal is amplified by the linear power amplifier 24 of the transmission unit 25 and transmitted to the base station 12 via the duplexer 21 and the shared antenna 20. As a result, a calling process is performed (step S1).

When the call processing is performed, the base station 12 and the control station 13 which constitute the mobile telephone network 10 and the fixed telephone network 1
The communication adapter 4 is connected to the mobile terminal device 3 via 1. As a result, the communication adapter 4 returns to the fixed telephone network 1 again.
1. Control station 13 and base station 1 constituting mobile telephone network 10
ACK signal indicating that the connection has been completed and the mobile terminal device 3 is in a standby state is transmitted to the mobile terminal device 3 via the communication terminal 2 (step S2).
2). The control unit 3 of the mobile terminal device 3 that has received the ACK signal
9 displays on the liquid crystal display 3B (see FIG. 1) that the communication adapter 4 is in the standby state and notifies the user.

Thus, the user can dial button 3A
By operating, the audio-on signal is transmitted to the communication adapter 4 via the mobile telephone network 10 and the fixed telephone network 11 as the original reproduction control data DPC0 in the same manner as described above (step S3). When receiving the audio-on signal as the reproduction control data DPC, the communication adapter 4 turns on the power of the audio device 5 by generating and outputting the audio device control data DCT, and then configures the fixed telephone network 11 and the mobile telephone network 10. An ACK signal is transmitted to the mobile terminal device 3 via the control station 13 and the base station 12 (step S4).

The control unit 39 of the mobile terminal device 3 that has received the ACK signal displays on the liquid crystal display 3B that the audio equipment 5 is powered on and is in a standby state, and notifies the user. By operating the dial button 3A, the user operates an operation selection signal (=
The original reproduction control data DPC0) is similarly transmitted to the communication adapter 4 as reproduction control data DPC via the mobile telephone network 10 and the fixed telephone network 11 (step S5).

For example, the operation selection signal is a signal transmitted to instruct whether to perform reproduction by a CD player or an MD player. Communication adapter 4 receiving operation selection signal as reproduction control data DPC
Is a player (for example, CD) corresponding to the operation selection signal.
The player is turned on to be in a standby state, and the mobile terminal 3 is notified of this by an ACK signal (step S6).

The control unit 39 of the mobile terminal device 3 that has received the ACK signal displays on the liquid crystal display (not shown) that the player to be operated is in a standby state, and notifies the user. The user operates the dial button 3A of the mobile terminal device 3.
Performs a playback operation (playback, rewind, fast forward, pause, etc.), and outputs a playback operation signal as playback control data DPC for performing a desired playback operation to the mobile telephone network 1.
0 and the same to the communication adapter 4 via the fixed telephone network 11 (step S7).

As a result, the communication adapter 4 generates and outputs the audio device control data DCT, thereby causing the audio device 5 to perform a reproduction operation corresponding to the reproduction operation signal. Is transmitted to the mobile terminal device 3 as audio data DAD via the terminal (step S8). Hereinafter, similarly, the audio device 5 sends the reproduction signal to the mobile terminal device 3 as audio data DAD via the communication adapter 4.

The diversity receiver 2 of the mobile terminal 3
9 is connected to the first receiver 26 and the receiving antenna 27 which are connected to the shared antenna 20 via the duplexer 21 while performing high-speed switching of the frequency to monitor the carrier of the neighboring cell by the high-speed switching synthesizer 31. Second
The output of the receiver 28 is monitored, and based on the output signal of one of the first receiver 26 and the second receiver 28 whose reception state is good, the QPSK demodulator 30 transmits the transmission data DRC as a reception signal. Is demodulated.

The received signal demodulated by the QPSK demodulator 30 is input to a W-CDMA processing circuit 33, where a speech code, a control signal, and a synchronization signal are separated. A part of the separated control signal is input to the control unit 39, and when the audio code is a stereo signal, the switching circuit 34 is switched to the stereo signal processing circuit 38 side.

Thus, output digital signals (speech code, control signal and synchronization signal) required for stereo signal reproduction
Is input to the stereo signal processing circuit 38 via the switching path 33. The digital filter 45 of the stereo signal processing circuit 38 removes unnecessary components included in the output digital signal output from the W-CDMA processing circuit 33 and converts the sampling frequency of the signal to a high value to provide the D / A converter 46 with the signal. Output.

The D / A converter 46 performs digital / analog conversion of the digital data passed through the digital filter, converts the digital data into an analog audio signal, and outputs the analog audio signal to the audio circuit 47. The audio circuit 47 converts the analog audio signal into a stereo audio signal and outputs the stereo audio signal via the L-side output terminal and the R-side output terminal.

As a result, the user can enjoy various types of stereo music via headphones or the like. Thereafter, when the user performs a stop operation using a dial button (not shown) of the mobile terminal device 3, a reproduction stop signal is similarly transmitted to the communication adapter 4 via the mobile telephone network 10 and the fixed telephone network 11 (step S9). ), The communication adapter 4 generates and outputs audio device control data DCT, thereby generating and outputting audio device control data DCT for stopping the reproduction operation corresponding to the reproduction stop signal to the audio device 5 ( Step S1
0), the reproduction operation of the audio device 5 is stopped.

As described above, according to the present embodiment, since the mobile terminal device 3 has substantially the same configuration as the conventional mobile phone, the conventional mobile cassette tape player,
Despite being smaller in size than portable players such as portable CD players and portable MD players, the main body of the playback device (the audio device 5 in the case of the above example) can be arranged in each home. Therefore, a large number of music pieces can be reproduced by continuously reproducing a plurality of recording media (cassette tape, CD, MD, etc.).

Also, since the operation can be almost shared with the current portable player except for a calling operation and the like, easy operability can be ensured. In the first embodiment described above, the mobile telephone network and the fixed telephone network are mixed as the public telephone network. However, it is also possible to configure the connection through only the mobile telephone network.

Second Embodiment In the first embodiment described above, the mobile terminal device 3 transmits a stereo audio signal based on transmission data DRC transmitted from the audio equipment 5 via the communication adapter 4 and the public telephone network 2 in real time. Therefore, when the line is interrupted, such as when the mobile terminal device 3 passes through a tunnel, the stereo audio signal is also interrupted.

Therefore, in the second embodiment, as shown in FIG. 5, the transmission data DRC corresponding to a predetermined reproduction time (for example, about several tens of seconds) is QPSK-demodulated and the buffer memory 5 is demodulated.
By storing the audio signal at 0 before the reproduction of the stereo audio signal, the reproduction is continued based on the stored transmission data DRC after the QPSK demodulation, and the audio device 5 is rewound through the communication adapter 4 and the like. By performing reproduction again, it is possible to cope with a temporary line disconnection state.

Third Embodiment In the above-described second embodiment, since it is necessary to store the transmission data DRC after QPSK demodulation for a predetermined reproduction time before reproducing the stereo audio signal, reproduction is started. A problem occurs that it takes a long time to perform the operation.

Therefore, the audio device 5 is configured to be capable of a high-speed reproduction mode (n-times speed reproduction; n is a real number greater than 1), so that n-times speed reproduction is performed at the start of reproduction and reproduction is started appropriately. And the buffer memory 50
If the audio device 5 is caused to perform the normal reproduction mode (1 × speed reproduction) at the time when the transmission data DRC after the QPSK demodulation is stored by the capacity of (see FIG. 5), the non-speech time at the start of reproduction is obtained. Can be shortened, and usability is improved.

Fourth Embodiment Although the above-described first to third embodiments are combined terminal devices having the function of a mobile phone as mobile terminal devices, the fourth embodiment is limited to stereo sound signal reproduction. 1 is an embodiment of a single-function terminal device according to the present invention.

FIG. 6 is an external view of a mobile terminal device according to the fourth embodiment. FIG. 6A is a front view, and FIG. 6B is a side view. As shown in FIG. 6A, when there are a plurality of reproducible audio devices on the front of the mobile terminal device 60, when a plurality of recording media can be reproduced by one audio device,
Alternatively, in both cases, a first switch 61A for switching and selecting an audio device or a recording medium to be sequentially reproduced in a predetermined order, and a tune for returning a reproduced tune on the same recording medium. A return switch 61B, a rewind switch 61C for returning the playback position in the same playback music, a playback switch 61D for performing playback / pause, and a fast-forward switch for fast-forwarding the playback position in the same playback music. 61E, a song feed switch 61F for fast-forwarding a playback song on the same recording medium
And the audio device or recording medium to be sequentially reproduced in the reverse order of the first changeover switch 61A.
An operation section 61 having a second changeover switch 61G for selection is provided.

FIG. 6B shows a side view of the mobile terminal device 60.
2, a headphone terminal 62, a volume switch 63 for volume control, and a power switch 64 are provided.

FIG. 7 is a schematic block diagram of a mobile terminal device 60 according to the fourth embodiment. In FIG. 7, the first of FIG.
The same parts as those in the embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. The difference between the mobile terminal device 60 of the fourth embodiment and the mobile terminal device 3 of the first embodiment is that the microphone 35, the speaker 36, and the CODEC 37 are not provided because the transmitting and receiving functions of the mobile phone are not required. And an operation unit 61 having no display function in place of the display operation unit 40.

Next, with reference to FIG. 4, the operation of the mobile terminal device 60 different from that of the mobile terminal device will be mainly described. When the user turns on the power switch 64, an instruction to make a call is issued, and the control unit 39 causes the W-CDMA processing circuit 3
3 is controlled to output a control signal, and a calling process is performed (step S1).

When the calling process is performed, the base station 12 and the control station 13 constituting the mobile telephone network 10 and the fixed telephone network 1
The communication adapter 4 is connected to the mobile terminal device 3 via 1. As a result, the communication adapter 4 returns to the fixed telephone network 1 again.
1. Control station 13 and base station 1 constituting mobile telephone network 10
ACK signal indicating that the connection has been completed and the mobile terminal device 3 is in a standby state is transmitted to the mobile terminal device 3 via the communication terminal 2 (step S2).
2).

Thus, the control unit 39 controls the mobile telephone network 1
0, and sends an audio-on signal to the communication adapter 4 via the fixed telephone network 11 as the original reproduction control data DPC0 in the same manner as described above (step S3). When receiving the audio-on signal as the reproduction control data DPC, the communication adapter 4 turns on the power of the audio device 5 by generating and outputting the audio device control data DCT, and then configures the fixed telephone network 11 and the mobile telephone network 10. An ACK signal is transmitted to the mobile terminal device 3 via the control station 13 and the base station 12 (step S4).

The control unit 39 of the mobile terminal device 3 that has received the ACK signal is in a standby state since the power of the audio equipment 5 is turned on and is in a standby state. Thus, when the user operates the first changeover switch 61A or the second changeover switch 61G of the operation unit 61, an operation selection signal (= corresponding to the original reproduction control data DPC0) for selecting an operation target is transmitted to the mobile telephone network 10. Then, the data is similarly transmitted as reproduction control data DPC to the communication adapter 4 via the fixed telephone network 11 (step S5). In this case, if neither the first changeover switch 61A nor the second changeover switch 61G has been operated for a predetermined time, the apparatus or the recording medium from which the reproduction was performed last time is selected. Is also possible.

Upon receiving the operation selection signal as the reproduction control data DPC, the communication adapter 4 turns on the power of the player (for example, a CD player) corresponding to the operation selection signal,
The mobile terminal device 3 is set in a standby state, and the mobile terminal device 3 is notified of this by an ACK signal (step S6). The control unit 39 of the mobile terminal device 3 that has received the ACK signal allows the user to operate the operation unit 61 of the mobile terminal device 60 to perform a playback operation (playback, rewind, fast forward, pause, etc.), thereby making a desired operation. Is transmitted to the communication adapter 4 via the mobile telephone network 10 and the fixed telephone network 11 in the same manner (step S).
7).

As a result, the communication adapter 4 generates and outputs the audio device control data DCT, thereby causing the audio device 5 to perform a reproduction operation corresponding to the reproduction operation signal, and the audio device 5 transmits the reproduction signal to the communication adapter 4. Is transmitted to the mobile terminal device 3 as audio data DAD via the terminal (step S8).

Thereafter, similarly, the audio equipment 5 sends the reproduction signal to the mobile terminal device 60 as audio data DAD via the communication adapter 4. As a result, as in the first embodiment, the user can enjoy various stereo music via the headphones, and can use a smaller mobile terminal device, thereby further improving portability. It becomes possible.

Fifth Embodiment In the first to fourth embodiments, the case where the communication line is disconnected due to the deterioration of the communication state is not considered at all. In such a case, the power supply of the audio device 5 can be cut off by notifying the communication adapter 4 that the communication line has been disconnected on the public telephone network 2 side. This makes it possible to reduce waste of power consumption.

Sixth Embodiment In the first to fifth embodiments, the public telephone network 2 only provides a communication line as in the case of using a normal mobile phone. By providing an operation function in the telephone network 2 (= mobile telephone network 10 or fixed telephone network 11), it is possible to construct a more convenient remote playback system.

FIG. 8 is an explanatory diagram of a processing sequence of the remote playback system when the public telephone network 2 is provided with an operation function. In the following description, a case where the mobile terminal device 3 of the first embodiment is used will be described. When the user operates the dial button 3A (see FIG. 1) of the display operation unit 40 to issue a call instruction, the control unit 39
Controls the W-CDMA processing circuit 33 to output a control signal.

This control signal is waveform-shaped by the waveform shaping section 41 of the π / 4 shift QPSK modulator 23, and is further subjected to RF band quadrature modulation by the RF band quadrature modulator 42, and then to the linear power amplifier of the transmission section 25. Amplified by 24,
Base station 1 via duplexer 21 and shared antenna 20
When the call is transmitted to the public telephone network 2 and the public telephone network 2 is connected to the communication adapter 4, the public telephone network 2
Sends the audio-on signal to the communication adapter 4 as the reproduction control data DPC in the same manner as described above (step S11). Thus, the communication adapter turns on the power of the audio device 5 by generating and outputting the audio device control data DCT.

Next, if the user has not registered a menu for selecting an operation, the user registers the menu in the public telephone network 2 (step S12). After the menu registration processing is completed, or when the menu has been registered, the public telephone network 2 displays the menu on the liquid crystal display 3B of the mobile terminal device 3 (step S1).
3).

When the user selects a menu based on the menu displayed on the liquid crystal display 3B, the mobile terminal device transmits an operation selection signal (= corresponding to original reproduction control data DPC0) for selecting an operation target to the mobile telephone. When transmitted to the network 10 and the fixed telephone network 11 (step S14), the public telephone network 2 reproduces the reproduction control data DPC based on the operation selection signal.
Is transmitted to the communication adapter 4 (step S15).

Upon receiving the operation selection signal as the reproduction control data DPC, the communication adapter 4 turns on the power of the player (for example, a CD player) corresponding to the operation selection signal,
By generating and outputting audio device control data DCT corresponding to a user's playback operation (playback, rewind, fast forward, pause, etc.), the audio device 5 is caused to perform a playback operation corresponding to the playback operation signal. Sends the reproduction signal to the mobile terminal device 3 as audio data DAD via the communication adapter 4 (step S16).

As a result, the diversity receiver 29 of the mobile terminal 3 is connected to the shared antenna 20 via the duplexer 21 while performing high-speed switching of the frequency by the high-speed switching synthesizer 31 so as to monitor the carrier of the neighboring cell. The output of the first receiver 26 and the output of the second receiver 28 connected to the receiving antenna 27 are monitored, and the first receiver 2
6 or the second receiver 28, the QPSK demodulator 30
Demodulates the transmission data DRC which is the reception signal by
The received signal demodulated by the PSK demodulator 30 has a WC
The voice code, the control signal,
The synchronization signal is separated, and a part of the separated control signal is input to the control unit 39. When the audio code is a stereo signal, the switching circuit 34 is switched to the stereo signal processing circuit 38 side.

As a result, output digital signals (speech code, control signal and synchronization signal) required for stereo signal reproduction
Is input to the stereo signal processing circuit 38 via the switching path 33, and the digital filter 45 of the stereo signal processing circuit 38 removes unnecessary components contained in the output digital signal output from the W-CDMA processing circuit 33 and The D / A converter 46 converts the signal sampling frequency to a higher value and outputs it to the D / A converter 46. The D / A converter 46 performs digital / analog conversion of the digital data that has passed through the digital filter, and converts the digital data into an analog audio signal. Output to the audio circuit 47, and the audio circuit 47
Since the analog audio signal is converted into a stereo audio signal and output via the L-side output terminal and the R-side output terminal, the user can enjoy various stereo music via headphones or the like.

Thereafter, when the user operates the dial button 3A of the mobile terminal device 3 to switch the menu, the public telephone network 2 displays the menu again on the liquid crystal display 3B of the mobile terminal device 3. (Step S1
3) Steps S14 to S14 are performed in the same manner.

When the user disconnects the communication line to stop the reproduction, or when the communication line is disconnected due to the deterioration of the communication state (step S1).
9) The public telephone network sends a reproduction stop signal to the communication adapter 4 to stop the power supply of the audio device and output audio device control data DCT for turning off the power.

Thus, the reproduction operation of the audio device 5 can be stopped and the power can be turned off. As described above, according to the fifth embodiment, it is possible to provide various menus by providing the operation function not on the mobile terminal device side but on the public telephone network 2 side. Service can be improved.

Similarly, not only audio equipment,
It is also possible to control a controlled device (a video deck, a cooling / heating device, an automatic hot water type bath, etc.) that can be remotely operated at home by the same mobile terminal device.
In this case, the mobile terminal device may be configured to transmit data from the controlled device in order to monitor the operation state of the controlled device.

[0066]

According to the first aspect of the present invention, when a user gives a control instruction to perform remote control of an audio reproducing apparatus by a remote operation means, the operation control data sending means generates operation control data. The audio playback device outputs the audio signal based on audio transmission data transmitted from the audio playback device via the communication line, and outputs an audio signal. Despite the fact that it can be configured to be smaller than portable players such as portable cassette tape players, portable CD players, portable MD players, etc., it is possible to arrange a large player body in a remote place such as each home. Although the portable device can be made lighter, a plurality of recording media (cassette tape, C
D, MD, etc.) can be played back many times. In addition, since the operation can be substantially shared with the current portable player except for a call operation and the like, easy operability can be ensured.

According to the fifth aspect of the present invention, the drive control means detects a call state of the communication device via the communication line, and outputs a drive control signal to set the audio reproduction device to the drive state. The operation control means generates operation control data to perform remote control of the audio reproduction device based on the original operation control data transmitted by the communication device through the communication line to perform remote control of the audio reproduction device; , The reproduction control can be reliably performed by the remote communication device.

According to the sixth aspect of the present invention, the drive control means detects a calling state of the communication device, and outputs a drive control signal to the audio reproduction device to put the audio reproduction device into a driving state. The operation control means generates operation control data for performing remote control of the audio reproduction apparatus based on the original operation control data transmitted by the communication apparatus for performing remote control of the audio reproduction apparatus, and outputs the operation control data via the communication line. , The configuration of the communication device can be simplified and complicated control can be performed.

According to the invention described in claim 8, the drive control means detects a calling state of the communication device and outputs a drive control signal to the controlled device so as to bring the controlled device into a driven state.
The operation control means generates operation control data for performing remote control of the controlled device based on the original operation control data transmitted by the communication device for performing remote control of the controlled device, and transmits the generated operation control data via the communication line. Thus, reliable remote operation can be performed via a communication line.

According to the tenth aspect of the present invention, in the operation control data sending step, the operation control data is generated based on a user operation performed to remotely control the audio reproducing apparatus, and the operation control data is transmitted via the communication line. The audio data is transmitted to the audio reproducing apparatus, and in the reproducing step, the audio is reproduced based on the audio transmission data transmitted from the audio reproducing apparatus via the communication line, so that the conventional portable cassette tape player, portable CD player, portable In spite of being able to construct a small-sized playback system as compared to a playback system using a portable player such as an MD player,
A plurality of recording media (cassette tapes, CDs, MDs, etc.) can be continuously reproduced, and a large number of music pieces can be reproduced. In addition, the operation method can be substantially shared except for the call operation and the like with the current portable player, and easy operability can be ensured.

According to the eleventh aspect of the present invention, the drive control step detects the calling state of the communication device and sets the audio reproduction device to the drive state, and the operation control step performs remote control of the audio reproduction device. Therefore, remote control of the audio playback device is performed based on the original operation control data transmitted by the communication device, so that playback control can be reliably performed.

According to the twelfth aspect of the present invention, the driving control step detects the calling state of the communication device and sets the controlled device to the driving state. The operation control step performs remote control of the controlled device via a wireless communication line based on the original operation control data transmitted by the communication device to perform remote control of the controlled device. Remote control can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a schematic configuration block diagram of a remote playback system according to an embodiment.

FIG. 2 is a schematic configuration block diagram of a mobile terminal device according to the first embodiment.

FIG. 3 is a schematic block diagram of a stereo signal processing circuit.

FIG. 4 is an explanatory diagram of a processing sequence according to the first embodiment.

FIG. 5 is a schematic block diagram of a mobile terminal device according to a second embodiment and a third embodiment.

FIG. 6 is an external view of a mobile terminal device according to a fourth embodiment.

FIG. 7 is a schematic configuration block diagram of a mobile terminal device according to a fourth embodiment.

FIG. 8 is an explanatory diagram of a processing sequence according to a sixth embodiment.

[Explanation of symbols]

Reference Signs List 1 remote reproduction system 2 public telephone network 3 mobile terminal device 4 communication adapter 5 audio equipment 10 mobile telephone network 11 fixed telephone network 12 base station 13 control station 20 shared antenna 21 duplexer 22 shared antenna section 23 π / 4 shift QPSK modulation Device 24 linear power amplifier 25 transmitting unit 26 first receiver 27 receiving antenna 28 second receiver 29 diversity receiver 30 QPSK demodulator 31 fast switching synthesizer (DLPS) 32 receiving unit 33 W-CDMA (Wide band Code-Division) Multip
le-Access) processing circuit 34 switching circuit 35 microphone 36 speaker 37 CODEC 38 stereo signal processing circuit 39 control unit 40 display operation unit 41 waveform shaping unit 42 RF band quadrature modulator 45 digital filter 46 D / A converter 47 audio circuit DPC0 Original playback control data DRC transmission data DPC playback control data DCT audio equipment control data DAD audio data

Claims (12)

[Claims] 1. A communication device for performing two-way communication with an audio reproducing device via a communication line, comprising: remote operation means for giving a control instruction by a user to perform remote control of the audio reproducing device; An operation control data transmitting unit that generates operation control data based on an operation of the user on the remote operation unit and transmits the operation control data to the audio reproduction device via the communication line; and the audio reproduction device via the communication line And a reproducing unit that reproduces audio based on the audio transmission data transmitted from and outputs an audio signal. 2. The communication device according to claim 1, wherein the communication line is a wireless communication line, the operation control data transmission unit includes an operation control data transmission unit that transmits the operation control data, The communication device, wherein the reproduction unit includes a reception unit that receives the audio transmission data via the wireless communication line. 3. The communication device according to claim 1, wherein the reproduction unit includes a buffer storage unit that stores the audio transmission data for a predetermined period of time. apparatus. 4. The communication device according to claim 3, wherein the audio reproduction device has a high-speed reproduction mode at a reproduction speed higher than a normal reproduction speed, and the buffer storage unit starts outputting the audio signal. A communication device for storing the audio transmission data in the high-speed reproduction mode in advance. 5. A communication control device that performs communication control on the audio reproduction device side when the communication device performs bidirectional communication with the audio reproduction device via a communication line that is at least partially a wireless communication line. A drive control unit that detects a call state of the communication device via the communication line and outputs a drive control signal to set the audio reproduction device to a driving state; and a remote control of the audio reproduction device. Operation control means for generating operation control data for performing remote control of the audio reproduction device based on original operation control data transmitted by the communication device via the communication line, and transmitting the generated operation control data via the communication line. And a communication control device comprising: 6. A communication control device for performing communication control when a communication device performs two-way communication with an audio reproducing device via a wireless communication line, wherein the communication control device detects a call state of the communication device. A drive control unit that outputs a drive control signal to bring the audio playback device into a drive state; and the audio playback device based on original operation control data transmitted by the communication device to perform remote control of the audio playback device. A communication control device, comprising: operation control means for generating operation control data to perform remote control of the operation control data and transmitting the operation control data via a communication line. 7. The communication control device according to claim 6, further comprising a stop control unit that detects that the communication line corresponding to the communication device has been disconnected, and sets the audio playback device to a stop state. A communication control device. 8. When performing two-way communication between a communication device and a controlled device that can be remotely controlled via a wireless communication line,
A communication control device for performing communication control, comprising: a drive control unit that detects a call state of the communication device and outputs a drive control signal so as to set the controlled device to a driving state; and Operation control means for generating operation control data for performing remote control of the controlled device based on original operation control data transmitted by the communication device for performing remote control, and transmitting the generated operation control data via a communication line. A communication control device characterized by the above-mentioned. 9. The communication control device according to claim 8, further comprising a stop control unit that detects that the communication line corresponding to the communication device has been disconnected, and sets the audio playback device to a stop state. A communication control device. 10. A communication control method for a communication device that performs two-way communication with an audio playback device via a communication line, wherein the communication control method is based on a user operation performed to remotely control the audio playback device. To generate operation control data,
An operation control data transmitting step of transmitting to the audio reproducing apparatus via the communication line; and a reproducing step of performing audio reproduction based on audio transmission data transmitted from the audio reproducing apparatus via the communication line. A communication control method. 11. A communication control method performed when a communication device performs two-way communication with an audio playback device via a wireless communication line, wherein a call state of the communication device is detected and the audio playback is performed. A drive control step of bringing the apparatus into a driving state; and an operation control step of performing remote control of the audio reproduction apparatus based on original operation control data transmitted by the communication apparatus to perform remote control of the audio reproduction apparatus. A communication control method. 12. A communication control method performed when a communication device performs bidirectional communication with a controlled device that can be remotely controlled via a wireless communication line, the communication control method comprising: detecting a call state of the communication device; A drive control step of bringing the controlled device into a driving state; and a control of the controlled device via the wireless communication line based on original operation control data transmitted by the communication device to perform remote control of the controlled device. A communication control method, comprising: an operation control step of performing remote control.