JP2004254023A - Music reproduction system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To drastically improve user-friendliness when a portable telephone set and a music player are combined for use. <P>SOLUTION: This music reproduction system connects the portable telephone set 10 to a music player 20 and transfers an incoming call to the portable telephone set 10 to the music player 20. The portable telephone set 10 is provided with a Bluetooth (R) unit 10a for transmitting a received sound signal to the music player 20 by Bluetooth (R) communication and also receiving a sound signal transmitted from the music player 20. Meanwhile, the music player 20 is provided with a Bluetooth (R) unit 20a for receiving the sound signal transmitted from the portable telephone set 10 through the unit 10a and also transmitting the sound signal inputted through a telephone transmitter 23 to the portable telephone set 10 through the unit 10a. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a music playback system that connects a mobile phone and a music player and transmits an incoming call of the mobile phone to the music player.
[0002]
[Prior art]
In recent years, mobile phones have become extremely widespread. As a mode of use of this mobile phone, not only a call made by putting the main body on the ear as usual, but also a receiver such as headphones or earphones and a transmitter such as a microphone. Calls using hands-free kits equipped with are also performed.
[0003]
In recent years, music players for playing music data recorded on various types of recording media such as compact disks, mini disks, and memory cards have become extremely popular. In addition to music players that are used, portable music players that are small and lightweight have become widespread.
[0004]
Both the hands-free mobile phone and the portable music player listen to sound via headphones or earphones. Therefore, for example, when there is an incoming call of the mobile phone while listening to music using the music player, a complicated operation such as removing the handset of the music player and attaching the hands-free kit of the mobile phone. Is required.
[0005]
In order to solve such a problem, for example, as in the technique described in Patent Literature 1, it is desired to easily switch the use of both when a mobile phone receives a call while using a music player. Technologies that enable it have been proposed.
[0006]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 10-200990
[Problems to be solved by the invention]
By the way, a technique for facilitating proper use of a mobile phone and a music player, that is, a music playback system to which an incoming call function is added in a mobile phone, including the technique described in Patent Document 1 described above, is shown in FIG. As described above, the mobile phone 100 and the music player 110 are generally connected via a predetermined cable 120. In the conventional music playback system, a transmitter 130 such as a microphone is connected to the music player 110 or is built in the music player 110, and a receiver 150 such as an earphone is connected via a predetermined cable 140. Connecting. Thus, when the mobile phone 100 receives an incoming call while listening to the music data reproduced by the music player 110, the music player transmits the music data from the mobile phone 100 via the cable 120. The voice signal of the other party is supplied to 110, and the voice signal is transmitted to the receiver 150 via the cable 140, and the voice signal of the user input via the transmitter 140 is transmitted via the cable 120. Thus, the music playback device 110 supplies the music data to the mobile phone 100.
[0008]
As described above, in the conventional music playback system, since the mobile phone 100 and the music player 110 are connected via the cable 120, there is a problem that the routing of the cable 120 is large and the usability is not very good. .
[0009]
The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a music playback system that can greatly improve the usability when a mobile phone and a music player are used in combination. I do.
[0010]
[Means for Solving the Problems]
A music playback system according to the present invention that achieves the above object is a music playback system that connects a mobile phone and a music player and transmits an incoming call of the mobile phone to the music player. First wireless communication means for transmitting an audio signal received by the mobile phone to the music player by wireless communication, and receiving an audio signal transmitted from the music player; And receives the audio signal transmitted from the mobile phone via the first wireless communication means, and converts the input audio signal to the mobile phone via the first wireless communication means. And a second wireless communication unit for transmitting.
[0011]
Such a music playback system according to the present invention needs to physically connect the mobile phone and the music player by a cable by performing voice transmission using wireless communication between the mobile phone and the music player. Disappears. As a result, the music playback system according to the present invention can greatly improve the usability.
[0012]
Here, each of the first wireless communication means and the second wireless communication means has a conversion means for converting an analog audio signal into a digital audio signal having a predetermined format.
[0013]
Further, it is preferable that each of the first wireless communication unit and the second wireless communication unit performs Bluetooth communication.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.
[0015]
This embodiment is a music playback system using a combination of a mobile phone and a portable music player for playing music data recorded on various recording media such as a compact disk, a mini disk, or a memory card. When a mobile phone receives an incoming call while using the music player, the incoming call is transmitted to the music player, and the use of the two can be switched. In particular, the music playback system aims to greatly improve the usability by connecting the mobile phone and the music player, which had been conventionally connected using a predetermined cable, with the music player using wireless communication.
[0016]
In the following, as a wireless communication technology for connecting a mobile phone and a music player, attention has recently been paid to a short-range wireless communication technology for wirelessly connecting various terminals such as a personal computer and a mobile phone and peripheral devices to each other. The description will be made assuming that a so-called Bluetooth (registered trademark) is used.
[0017]
The music playback system includes a mobile phone 10 and a music player 20 as shown in FIG.
[0018]
The mobile phone 10 is provided with a Bluetooth unit 10a for performing Bluetooth communication.
[0019]
As shown in FIG. 2, the Bluetooth unit 10a includes a codec 31 that supports a so-called CVSD (Continuous Variable Slope Delta Modulation) format and a log PCM (Pulse Code Modulation) format, a control unit 32 that controls each unit, and an external unit. And a transmission / reception unit 33 for transmitting and receiving data between them.
[0020]
When an incoming call is received, the mobile phone 10 converts the analog voice signal into a digital Bluetooth audio packet (HV packet) by the codec 31 in the Bluetooth unit 10a, and converts the Bluetooth audio packet into music via the transmission / reception unit 33 and the antenna 33a. It is transmitted to the playback device 20. Further, the mobile phone 10 receives the Bluetooth audio packet transmitted from the music player 20 via the transmitting / receiving unit 33 and the antenna 33a, converts the Bluetooth audio packet into an analog audio signal by the codec 31, and outputs the analog audio signal. I do.
[0021]
On the other hand, the music player 20 is also provided with a Bluetooth unit 20a having the same configuration as the Bluetooth unit 10a.
[0022]
When the music player 20 receives the Bluetooth audio packet transmitted from the mobile phone 10 via the transmitting / receiving unit 33 and the antenna 33a in the Bluetooth unit 20a, the music player 20 converts the Bluetooth audio packet into an analog audio signal by the codec 31. Is output to a receiver 22 such as a headphone or an earphone via a predetermined cable 21. The music player 20 converts an analog audio signal such as a user's voice input through a transmitter 23 such as a connected microphone or a built-in microphone into a digital Bluetooth audio packet by the codec 31; The Bluetooth audio packet is transmitted to the mobile phone 10 via the transmission / reception unit 33 and the antenna 33a.
[0023]
Such a music reproducing system is configured such that, when the mobile phone 10 receives an incoming call while listening to music data reproduced by the music player 20, the mobile phone 10 transmits the data via the Bluetooth units 10a and 20a. An audio signal of the other party is supplied to the music player 20, the audio signal is transmitted to the receiver 22 via the cable 21, and the audio signal of the user input via the transmitter 23 is The music is supplied from the music player 20 to the mobile phone 10 via the units 20a and 10a.
[0024]
As described above, the music playback system physically connects the mobile phone 10 and the music player 20 by the cable by performing the voice transmission using the Bluetooth communication between the mobile phone 10 and the music player 20. There is no need, and the usability can be greatly improved.
[0025]
Note that the present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the music player 20 and the receiver 22 are described as being connected via the predetermined cable 21. However, the present invention can also apply Bluetooth communication to this connection. is there.
[0026]
In particular, most mobile phones and music players have only one audio jack, but the music playback system has a Bluetooth unit 20a between the audio jack of the music player 20 and the receiver 22. With this arrangement, it is possible to perform Bluetooth communication via the handset 22 while listening to music data reproduced using the existing handset 22.
[0027]
That is, the music playback system can perform Bluetooth communication without impairing the use of existing communication devices including the mobile phone 10 at all, and can greatly improve convenience.
[0028]
Further, in the above-described embodiment, the mobile phone 10 and the music player 20 are described as being connected using Bluetooth communication. However, the present invention is not limited to the type of wireless communication, but has the same purpose. Any wireless communication that achieves this can be applied.
[0029]
As described above, it goes without saying that the present invention can be appropriately changed without departing from the spirit of the present invention.
[0030]
【The invention's effect】
As described in detail above, the music playback system according to the present invention performs audio transmission using wireless communication between the mobile phone and the music player, thereby physically connecting the mobile phone and the music player with a cable. It is no longer necessary to make a connection. As a result, the music playback system according to the present invention eliminates restrictions on cable routing, greatly improves usability, and can perform wireless communication without impairing the use of existing communication equipment at all. it can.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a configuration of a music playback system shown as an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration of a Bluetooth unit provided in the music reproduction system.
FIG. 3 is a diagram illustrating a configuration of a conventional music reproduction system.
[Explanation of symbols]
Reference Signs List 10 mobile phone 10a, 20a Bluetooth unit 20 music player 21 cable 22 receiver 23 transmitter 31 codec 32 controller 33 transmitter / receiver

Claims (3)

A music playback system that connects a mobile phone and a music player and transmits an incoming call of the mobile phone to the music player,
First wireless communication means provided in the mobile phone, for transmitting an audio signal received by the mobile phone to the music player by wireless communication, and receiving an audio signal transmitted from the music player;
The portable telephone is provided in the music player, receives an audio signal transmitted from the mobile phone through the first wireless communication unit, and converts the input audio signal into the portable telephone through the first wireless communication unit. And a second wireless communication means for transmitting to the telephone. 2. The apparatus according to claim 1, wherein each of the first wireless communication means and the second wireless communication means has a conversion means for converting an analog audio signal into a digital audio signal having a predetermined format. Music playback system. The music playback system according to claim 1, wherein the first wireless communication unit and the second wireless communication unit each perform Bluetooth communication.

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