JP2001024745A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone set which enables a user to easily obtain music data. SOLUTION: A digital modulation/demodulation circuit 2 is provided, which is connected to a transmission/reception circuit 1 and has a plurality of communication modes, and received data are stored into a storage means 4 when the communication mode of the digital modulation/demodulation circuit 2 is designated as a music data reception mode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone having a music reproducing function.

[0002]

2. Description of the Related Art There have conventionally been proposed a number of portable telephone apparatuses which are provided with a music reproducing function to reproduce music when telephone communication is not performed.

[0003] For example, Patent Application Publication No.
In the device disclosed in Japanese Patent Laid-Open No. 5 (1993) -1995, a remote controller is added to headphones so that off-hook can be performed by the remote controller in response to an incoming call.

[0004] Patent application publication No. 27625/1998
The device disclosed in Japanese Patent Publication No. 0 prevents the increase in cost by enabling stereo headphones to be used as a headphone microphone during telephone communication.

[0005] However, it is important how the portable telephone is made compact, and it is impractical to incorporate a cassette tape reproducing means into the portable telephone, and it is a fact that it has not yet been commercialized. .

On the other hand, in recent years, audio compression technology has been developed and MP
3 compression technology has been released. And the business of distributing music from the Internet using this technology was started. Since such a business does not require a store or stock as in the case of the conventional compact disc sales, it has the advantage of being able to provide music sources at extremely low prices, and is rapidly developing in the United States and the like.

Further, a portable headphone player in which music data is stored in a flash memory by applying the MP3 technology has been developed and marketed.

[0008] Here, an apparatus in which a portable telephone apparatus having the above-described music reproduction function and a portable headphone player using MP3 technology are combined is considered.
According to this combination, the music reproducing means can be configured to be extremely small, and a portable telephone device having a realistic music reproducing function can be configured.

[0009]

However, in order to obtain music data via the Internet, personal data is required.
It required a computer (hereinafter referred to as a personal computer), which was not an easy way for junior high school students or high school students who could not afford expensive personal computers.

[0010] Furthermore, the problem of how to collect data usage fees when music data is distributed from the Internet has not been completely solved. For this reason, there has been a problem that only free music can be distributed, and in some cases, pirated distribution is performed.

The present invention has been made in view of the above problems, and has as its object to provide a portable telephone device capable of easily obtaining music data. It is also possible to facilitate the collection of music data usage fees by using the mobile phone service.

[0012]

A digital modulation / demodulation circuit connected to a transmission / reception circuit and having a plurality of communication modes, wherein a communication mode of the digital modulation / demodulation circuit is designated as a music data reception mode. Then, the received data is stored in the storage means.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides a digital modulation / demodulation circuit having a plurality of communication modes, storage means, control means, operation means and compressed voice. Has data decompression means,
When the communication mode of the digital modulation / demodulation circuit is designated as the music data reception mode, the received music data is stored in the storage means, and when the music data reproduction mode is designated, the music stored in the storage means is stored. It is configured to output data through a decompression means. In the music data reception mode, the received music data is stored in the storage means, and in the music data reproduction mode, the stored data is reproduced while being decompressed. It has the effect of doing.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a portable telephone device according to the present invention. FIG. 1 is a circuit block diagram of a first embodiment of the portable telephone device of the present invention.

In FIG. 1, reference numeral 1 denotes a high-frequency unit, which comprises a transmitting circuit, a receiving circuit, a duplexer, and the like. A modulation / demodulation unit 2 converts data received from the high-frequency unit 1 into digital data in the reception mode, and modulates high-frequency waves based on the input digital data in the transmission mode. .

Reference numeral 3 denotes a compression / decompression unit which decompresses the compressed audio data output from the modulation / demodulation unit 2 and is connected to the output terminal of the modulation / demodulation unit 2. The decompression procedure based on the compression theory such as is stored.

Reference numeral 4 denotes a first memory, which is connected to an output terminal of the modulation / demodulation unit 2 and stores audio data. The output terminal of the first memory 4 is connected to the input terminal of the compression / decompression unit 3. The first memory 4 is configured to be detachable. The first memory 4 is a nonvolatile memory such as a flash memory.

Reference numeral 5 denotes a second memory for storing data during operation of the central processing unit 6 (hereinafter referred to as CPU) and data such as a shortened telephone number. And is configured to exchange data.

Reference numerals 7 and 8 denote digital / analog conversion means (hereinafter referred to as D / A), respectively, which output analog signals corresponding to the input digital signals. The D / A 7 has the output of the modulation / demodulation unit 2 and the output of the compression / decompression unit 3 connected to its input, and the D / A 8 has the output of the compression / decompression unit 3 connected to its input.

The analog output of the D / A 7 is amplified by the left amplifier 9, and the speaker 10 and the external connection terminal 11
Is output to The analog output of the D / A 8 is amplified by the right amplifier 12 and output to the external connection terminal 11.

Reference numeral 13 denotes a microphone, the output of which is amplified by a microphone amplifier 14 and transmitted to analog / digital conversion means (hereinafter referred to as A / D) 15 for modulation / demodulation.
Is connected to the input terminal of Reference numeral 19 denotes an operation unit.
Keys and other keys corresponding to numbers from 9 to 9 are provided,
It is connected to CPU6.

Reference numeral 16 denotes an impedance detector which outputs an output signal indicating which amplifier has a lower input impedance if the input impedance of each of the left amplifier 9 and the right amplifier 12 is less than a predetermined value. The impedance detection unit 16 is configured by, for example, a comparator or the like. Reference numeral 17 denotes a display unit using a liquid crystal panel or the like, which displays characters and figures according to output data of the CPU 6.

Reference numeral 18 denotes a stereo headphone / microphone, which is detachably connected to the external connection terminal 11.

The portable telephone device of the present invention is configured as described above.
It is explained along. FIG. 2 is a flowchart showing the download operation.

First, in step 1, the operation of the key 16 is waited. In step 2, if the key operation is fetching of music data, the process proceeds to communication with the packet network in step 3, otherwise, the other operations in step 4 Proceed to.

A typical example of another operation is a voice call. In this case, when the telephone number of the other party is input from the key 19 and a connection operation is performed, a digital signal corresponding to the operation is generated by the modulation / demodulation unit 2 and transmitted from the high frequency unit. Then, it is connected to a wired network through the cellular base station, and a communication circuit is formed.

When the user speaks from the microphone 13, the audio signal output from the microphone 13 is amplified by the microphone amplifier 14, converted into a digital signal by the A / D 15, and modulated by the modulation / demodulation unit 2. And transmitted from the high frequency unit 1.

The high-frequency signal carrying the voice of the other party is received by the high-frequency section 1 and demodulated by the modulation / demodulation section 2 to obtain a D / A signal.
Is converted to an analog signal, amplified by the left amplifier 9 and output from the speaker 10. In this way, a substantially full-duplex call can be made.

Here, the stereo headphone / microphone 1
When the microphone 8 is connected, the voice of the user is picked up by the microphone of the stereo headphone microphone 18, and the voice of the other party is output from the speaker of the stereo headphone microphone 18. When such other operations are completed, the process proceeds to step 5, and a series of operations is completed.

A case will be described in which the key operation is the fetching of music data in step 2 and the process proceeds to the communication with the packet network in step 3.

In step 3, the CPU 6 outputs a predetermined signal, and the signal is modulated by the modulation / demodulation unit 2,
Originated from Then, it is connected to the packet communication network through the cellular base station. Then, the packet communication network is connected to the Internet via the i-mode server.

If a server for distributing music data is found in step 5, the program proceeds to step 6, where music list data is downloaded from the server. At this time, the server distributes the data compressed according to a predetermined compression method, for example, the procedure of MP3.

Next, at step 7, the song title is displayed on the display unit 17 according to the song title data. When the user operates one of the keys displayed on the display unit 17 by operating the keys of the operation unit 19, the process proceeds to step 8 to download music data from the server.

At the time of this download, the music data received by the high frequency unit 1 is demodulated by the modulation / demodulation unit 2 to become a digital signal, which is stored in the first memory 4. At the same time, the digital signal demodulated by the modulation / demodulation unit 2 is sent to the compression / decompression unit 3, where the compression is decompressed and the D / A
The signal is converted into an analog signal by 7 and 8, amplified by the left amplifier 9 and the right amplifier 12, and output from the speaker of the stereo headphone / microphone 18. That is, it is possible to monitor while downloading music data.

When downloading a plurality of music data, the process returns from step 8 to step 6 again to repeat the same operation.

When the music data is stored in the first memory 4, the head address and the end address of the data and the music name data as the file name are written in the file allocation table of the first memory 4. When a plurality of music data are stored in the first memory 4,
Data of a plurality of start addresses and end addresses is written in the file allocation table.

When the download of the music data is completed,
Proceeding to step 9, the CPU 6 performs an operation of releasing the connection from the Internet, a packet network, or the like, and ends the download of the music data. Since the first memory 4 is configured to be detachable, when the music data is fully stored, it is replaced with a new one.

Next, the operation of reproducing the downloaded music data will be described. FIG. 3 is a flowchart showing the operation of reproducing music data.

First, at step 10, a key operation of the operation section 19 is waited. Here, if the instruction given to the CPU 6 by the key operation is an operation other than music reproduction, for example, an operation of making a telephone call, the process proceeds to other operations in step 12. If the instruction given to the CPU 6 is music playback,
Proceed to step 13.

In step 13, the first memory 4
The song name data is read out with reference to the file allocation table of FIG. The user operates the key 19 from the music title list displayed on the display unit 17 in step 14 to designate a desired music. Then, in step 15, the CPU 6 reads the music data from the memory 4 with reference to the file allocation table corresponding to the designated music.

In step 16, the read music data is sent to the compression / decompression unit 3, where the data is decompressed. The decompressed digital data is converted into analog data by the D / A 7 and 8 and input to the left amplifier 9 and the right amplifier 12. Here, when the stereo headphone / microphone 18 is connected to the external connection terminal 11, music is output from the stereo headphone / microphone 18.

If the user interrupts the processing of the CPU 6 in response to the incoming call or periodically checks the incoming call during the music reproduction so that the user can recognize the incoming call. Good. When an incoming call is detected, a ringtone is output to the stereo headphone / microphone 18. This configuration and operation are described in
Since it is disclosed in, for example, Japanese Patent No. 17788, the detailed description is omitted.

Since the CPU 6 refers to the file allocation table in advance when reading the music data, the CPU 6 knows the end address of the music data, and identifies the end of the music data reading in step 17.
Thereby, the CPU 6 ends a series of music data reproducing operations.

Next, a call waiting operation will be described with reference to FIG. FIG. 4 is a flowchart showing the standby operation.

First, at step 20, the apparatus waits until the user operates the key 19 to indicate a standby state. In the standby state, the process proceeds to step 21, where a plug of a stereo headphone microphone 18 or a commercially available monaural headphone microphone (not shown) is connected to the external connection terminal 11 from the output of the impedance detection unit 16. It is determined whether or not.

That is, the left amplifier 9 and the right amplifier 1
If both output impedances are high, external connection terminal 1
It can be seen from FIG. 1 that neither the stereo headphone microphone 18 nor the monaural headphone microphone is connected.

If the plug has not been inserted, the flow advances to step 22 to wait for an incoming call. If there is an incoming call, the process proceeds to step 23, where a bell sound is generated from the speaker 10 or a separately provided sounding body (not shown). Then, the process proceeds to a step S24, and waits until the user operates the key 19 to perform an off-hook operation. If not off-hook, the process returns to step 23 again. That is, the bell rings until the user goes off-hook.

When the user goes off-hook, the process proceeds to step 25 and a call is established. When the call ends, a series of operations ends.

When it is detected in step 21 that the plug is inserted, the process proceeds to step 26, where it is determined whether the inserted plug is for a monaural headphone / microphone or for a stereo headphone / microphone 18.

This determination is made using the output signal of the impedance detector 16. That is, when the output impedance of both the left amplifier 9 and the right amplifier 12 is low, it is understood that the stereo headphone / microphone 18 is connected to the external connection terminal 11, and when the output impedance of either one is low, the external connection terminal 11 It can be seen that a monaural headphone / microphone is connected.

If a monaural headphone / microphone is connected, the flow advances to step 27 to wait for an incoming call. If there is an incoming call, the process proceeds to step 28, and a bell sound is output to the speaker 10
Alternatively, it is generated from a separately provided sounding body. After generating the bell sound a predetermined number of times, the CPU 6 performs an off-hook operation in step 30.

This assumes that a speaker phone is connected. That is, many speakerphones have basically the same configuration as a monaural headphone / microphone, and it is convenient to automatically go off-hook when a speakerphone is connected.

In other words, with such a configuration, if a speaker phone is installed in a car, it is possible to talk without touching the portable telephone device while driving, thereby preventing an accident from occurring. it can. After automatically off-hook in step 30, the process proceeds to step 25.

If the plug inserted in step 26 is for the stereo headphone / microphone 18,
Proceed to step 31 to generate a bell sound. The generation of this bell sound is basically the same as that in step 23, but when the stereo headphone / microphone 18 is connected, it is assumed that the user is listening to music. Therefore, since the user may not notice the bell sound, the bell sound is also generated from the stereo headphone / microphone 18.

Then, the process proceeds to a step 32, at which the user operates the key 19 to perform an off-hook operation. If not off-hook, the process returns to step 31 again. That is, the bell rings until the user goes off-hook. When the user goes off-hook, the process proceeds to step 25 to establish a call.

In the above description, the portable telephone device is connected to the Internet via the i-mode server and takes in music data. However, the portable telephone device is connected to a mobile phone service company's office and takes in music data. Is also good.

[0057]

As described above, the portable telephone device of the present invention can easily obtain music data by connecting to the Internet or a portable telephone service company.

When a music data provider sends music data via a packet network, a data fee can be collected according to, for example, the amount of packet communication. Alternatively, a data fee can be collected by identifying the terminal number of the mobile phone.

On the user side, music data can be imported without a personal computer or the like, and can be used easily. In particular, since the communication speed of the PHS is high, data can be captured in a short time.

[Brief description of the drawings]

FIG. 1 is a block diagram showing Embodiment 1 of a mobile phone device of the present invention.

FIG. 2 is a flowchart showing an example of a music data download operation of the mobile phone device of the present invention.

FIG. 3 is a flowchart showing an example of a music data reproducing operation of the mobile phone device of the present invention.

FIG. 4 is a flowchart illustrating an example of a standby operation of the mobile phone device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High frequency part 2 Modulation / demodulation part 3 Decompression part 4 First memory 5 Second memory 6 Central processing unit 7, 8 D / A 9 Left amplifier 9 10 Speaker 11 External connection terminal 12 Right amplifier 13 Microphone 14 Microphone amplifier 15 A / D 16 Impedance detection unit 17 Display unit 18 Stereo headphone / microphone 19 Operation unit

Claims (4)

[Claims] A transmission / reception circuit, a digital modulation / demodulation circuit having a plurality of communication modes, a storage means, a control means, an operation means, and a decompression means for compressed audio data; When the communication mode of the digital modulation / demodulation circuit is designated as a music data reception mode, the received music data is stored in the storage means, and when the music data reproduction mode is designated, the music data is stored in the storage means. A mobile phone device configured to output the extracted music data via the decompression means. 2. The apparatus according to claim 1, wherein said first storage means is detachable.
A mobile phone device as described. And a terminal for connecting a stereo headphone and a monaural earphone / microphone. When a stereo headphone is connected, a ringtone is also output to the stereo headphone, and when a monaural earphone / microphone is connected. 2. The portable telephone device according to claim 1, wherein said telephone automatically goes off-hook in response to an incoming call. 4. A decompressing means for compressed audio data, comprising a transmitting / receiving circuit, a digital modulating / demodulating circuit having a plurality of communication modes, a control means, an external output terminal for data, and an operating means. A portable telephone device that, when the communication mode of the digital modulation / demodulation circuit is designated as a music data reception mode, outputs a sound signal corresponding to the received music data to an external connection terminal.