JP2002261892A - Portable telephone recording system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To well record voice data without impairing reductions in size and weight of a portable telephone and to enhance a protecting effect of a copyright. SOLUTION: A controller 501 controls a signal processing unit 502, a recording DSP 503, a light emitting unit 505 and a storage medium unit 507 based on control data sent from a portable telephone 201, and outputs a recording state via an external I/F unit 206. The processing unit 502 performs an A/D- conversion of a voice signal input from an analog signal input terminal 506 into a PCM signal under the control of the controller 501, and outputs the PCM signal to the recording DSP 508. The DSP 508 encodes the PCM signal output from the processing unit 502, data compresses the PCM signal to music data of a MP3 system, further encrypts the signal by using intrinsic information of the telephone 201, and stores the encrypted data in a storage medium mounted at the medium unit 507.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone recording system provided with a portable telephone and having a function of recording an audio signal output from a music reproducing apparatus.
The present invention relates to a mobile phone recording system that stores (records) music data compressed by the MP3 method or the like.

[0002]

2. Description of the Related Art A digital signal obtained by quantizing an analog signal such as an audio signal (hereinafter referred to as a PCM signal.
lse Code Modulation)
There is a P3 (MPEG Audio Layer-3) system. The MP3 system can compress data of about 1/10 of a PCM signal, but has a slight deterioration in sound quality. Therefore, music data distribution on the Internet and small headphone music that requires a smaller storage medium are required. It is used in playback devices and the like. The MP3 system is also used in mobile phones in which miniaturization of a storage medium is a technical problem. Also, some mobile phones are capable of playing music as well as small headphone playback devices,
The integration of a mobile phone and a small headphone playback device is progressing.

FIG. 9 is a block diagram showing a configuration of a conventional mobile phone and a charger holder for the mobile phone which is an accessory thereof. As shown in FIG. 9, the mobile phone 201
An antenna 401, a radio unit 402, a control unit 403 as a first control unit, an operation unit 409, and a display unit 410
, An audio processing unit 411, a speaker 412, and a microphone 4
13 and an external interface (I / F) 203
And a storage medium unit 205. Control unit 4
03 includes a CPU 405 and a memory 404. The memory 404 stores a program describing the operation of the control unit 403. The operation of the control unit 403 described below is performed by the CPU 405 reading and executing the program. Such a control unit 40
In the operation 3, the operation unit 409 is monitored and the operation unit 409 is monitored.
, And performs processing based on the operation, controls the display unit 410 to perform various displays, and controls the charger holder 202 connected via the external I / F 203 or the like. There are operations such as inputting and outputting data to and from various other accessories.

[0004] The charger holder 202 is a portable telephone 201.
It is for charging. When charging the mobile phone 201, a charging power supply (not shown) is connected to the external I / F 203.
The charging method using the charger holder 202 will be described below. The charger holder 202 has an external I / F 206 which is an interface with the mobile phone 201. External I / F
206 includes a power supply line 207. When the mobile phone 201 is fixed to the charger holder 202, the external I / F 203 of the mobile phone 201 is connected to the external I / F 206, and power is supplied to the mobile phone 201 via the external I / F 206, and Will be charged. Some charger holders 202 have a built-in battery charging circuit for the mobile phone 201 and others do not.

The operation of the mobile phone 201 during a call will be described. The mobile phone 201 performs communication with a base station (not shown) via the antenna 401 and the wireless unit 402 under the control of the control unit 403. Radio section 402 extracts a signal of a frequency to be received from a radio wave received by antenna 401, converts the frequency of the signal, amplifies the signal, and demodulates the signal, and outputs the received data to control section 403. The control unit 403 extracts audio data from the received data and
The signal is output to the audio processing unit 411 as an M signal. The audio processing unit 411 converts the PCM signal into an analog audio signal, and reproduces and outputs audio from the speaker 412.

On the other hand, the audio signal input from the microphone 413 is input to the audio processing unit 411. Voice processing unit 41
1 performs A / D conversion of an audio signal into a PCM signal. Control section 403 converts the PCM signal into transmission data that can be transmitted by radio section 402 and outputs the transmission data to radio section 402. Radio section 402 modulates the transmission data, amplifies the data as a carrier having a specified frequency, and transmits the carrier from antenna 401.

Next, the music reproducing operation of the mobile phone 201 will be described. The control unit 403 controls the digital
It further has a signal processor (hereinafter, DSP) 406 '. The mobile phone 201 includes a playback DSP 40
6 ′ and the audio processing unit 411 constitute the data reproduction unit 204. The storage medium unit 205 is a unit capable of storing a semiconductor storage medium (hereinafter, storage medium) such as an SD card, and is an I / O for allowing the storage medium to perform input / output with the outside when the storage medium is mounted. / F. It is assumed that music data compressed by the MP3 system is stored in the storage medium or the memory 404. S
The D card is a PC card with a built-in software management circuit (SD circuit) for managing software used inside a multimedia player as an information device.
Since the data is encrypted and stored, it is a storage medium with excellent copyright protection.

The control unit 403 converts the music data stored in the memory 404 or the storage medium into a DSP 4 for reproduction.
At 06 ′, the signal is decoded into a PCM signal, and the PCM signal is output to the audio processing unit 411. The audio processing unit 411 performs D / A conversion of the input PCM signal into an analog audio signal, and reproduces and outputs the analog audio signal to the speaker 412. That is, in the mobile phone 201, the music data of the MP3 system stored in the storage medium mounted on the storage medium unit 205 is read out by the data reproduction unit 204, and the music data is reproduced.

As described above, in order for the portable telephone 201 to reproduce music stored in the storage medium mounted on the storage medium unit 205, it is necessary to previously store music data in the storage medium. However, the mobile phone 20
1 does not have a function of storing a sound signal or the like output from a sound reproducing device (not shown) as music data in a storage medium, and therefore has a storage medium unit 205 for storing (recording) music data in the storage medium. It must be performed using a personal computer or the like. Therefore, a user who does not have a personal computer or the like can use the storage medium unit 205 in the mobile phone 201.
However, there is a problem that music cannot be recorded on the storage medium mounted on the PC.

FIG. 10 is a block diagram showing a configuration of a conventional portable telephone 301 different from the portable telephone 201 of FIG. As shown in FIG. 10, a mobile phone 301 includes an analog signal input terminal 306, a signal processing unit 307, and a recording DSP 30 in addition to the components of the mobile phone 201 shown in FIG.
8 is provided. The recording DSP 308 includes a control unit 40.
The data recording unit 303 is provided with the recording DSP 308 and the signal processing unit 307. The signal processing unit 307 performs A / D conversion of an analog signal input from the analog signal input terminal 306 into a PCM signal, and the recording DSP 308 encodes the PCM signal A / D converted by the signal processing unit 307 and converts the encoded signal into an MP3 signal. The compressed data is stored in a storage medium mounted on the storage medium unit 205. The mobile phone 301 is
By including the above-described data recording unit 303, music data can be stored in a storage medium mounted on the storage medium unit 205.

However, in the portable telephone 301, it is necessary to provide the analog signal input terminal 306, and for the portable telephone, there is a problem that the addition of such a terminal is an obstacle to miniaturization and weight reduction.

When the mobile phone 301 stores music data in a storage medium mounted on the storage medium unit 205 and receives an incoming call, the mobile phone 301 Storage in a storage medium;
Since the call and the data communication are performed at the same time, the load on the control unit 403 increases. Mobile phone 301
Considering the processing capability of the data recording unit and the S / N ratio of the audio signal in the electric circuit constituting the data recording unit 303 which must be small enough to be added to the mobile phone 301, the above-described situation in which the processing load is large, There is a problem that it is difficult to perform good storage on a medium.

Recently, music data and the like can be easily copied on a personal computer or the like, and copyright protection of such data has become a social problem. In particular,
Although the data compression techniques such as the above-described MP3 are very excellent in terms of data compression efficiency, no consideration is given to copyright protection. Therefore, in a personal computer or the like or a mobile phone having a recording function, there is a problem that these data can be easily copied and copyright cannot be protected.

[0014]

As described above, the conventional portable telephone has the following three problems. (1) Since a mobile phone without a recording function does not have a function of storing an audio signal or the like output from an audio playback device in a storage medium as music data, the storage (recording) of the music data in the storage medium is performed by the storage medium. It needs to be performed using a personal computer having a unit. Therefore, a user who does not have a personal computer or the like cannot record music data on a storage medium mounted on a storage medium unit in a mobile phone. (2) In a mobile phone having a recording function, it is necessary to provide an analog signal input terminal, and the addition of the analog signal input terminal is an obstacle to reducing the size and weight. (3) When an incoming call arrives at the mobile phone while the mobile phone stores music data in the storage medium mounted on the storage medium unit, the mobile phone stores the data in the storage medium and performs a call or data communication. Must be performed at the same time, but in such a situation, it is difficult to perform good storage on the storage medium. (4) Since a mobile phone having a recording function can easily copy data, it cannot protect copyright.

An object of the present invention is to provide a portable telephone recording system capable of satisfactorily recording music data without impairing the size and weight of the portable telephone.

Another object of the present invention is to provide a portable telephone recording system that can enhance the effect of protecting copyright.

[0017]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an operation unit which is an input means of a man-machine interface, a control unit for the operation unit and a radio communication control, and a reproduction DSP. A portable device comprising: first control means for converting compressed data of a predetermined format into a digital signal and outputting the digital signal; a voice processing unit for converting the digital signal into a voice signal; and a speaker for reproducing and outputting the voice signal. In a mobile phone recording system including a telephone and an accessory connected to the mobile phone, the accessory includes a storage medium, an input terminal for inputting an analog signal, and a digital audio signal input from the input terminal. Signal processing means for A / D converting the signal into a signal and outputting the signal; and converting the digital signal output from the signal processing means into compressed data by using a DSP for recording and storing the signal. Characterized in that it is composed of a second control means for controlling the recording process to be stored in the body.

In the portable telephone recording system of the present invention, by providing a recording function on the accessory side, music data can be recorded irrespective of the processing load of the portable telephone without changing the configuration of the conventional portable telephone. . Therefore,
The mobile phone recording system of the present invention can satisfactorily record music data without impairing the size and weight of the mobile phone.

In another recording system for portable telephones of the present invention, the recording DSP encrypts the compressed data using the unique information of the portable telephone, stores the encrypted data in the storage medium, and stores the encrypted data in the storage medium. If the compressed data to be reproduced is not encrypted, the DSP directly converts the data into a digital signal. If the compressed data to be reproduced is encrypted, the DSP The information is decoded and converted to a digital signal.

In the portable telephone recording system of the present invention, the compressed data encrypted using the unique information of the portable telephone is stored, so that the compressed data can be reproduced only by the system equipped with the portable telephone. Therefore, in the mobile phone recording system of the present invention, the effect of protecting copyright can be enhanced.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A portable telephone recording system according to an embodiment of the present invention will be described in detail with reference to the drawings. In all the drawings, components denoted by the same reference numerals all indicate the same components.

(First Embodiment) A portable telephone recording system according to a first embodiment of the present invention will be described. In the mobile phone recording system of the present invention, a system other than the MP3 system can be applied as a music data compression system. However, it is assumed that the mobile phone recording system of the present embodiment is a system for recording music data in the MP3 system. explain.

FIG. 1 is a block diagram showing the configuration of the portable telephone recording system of the present embodiment. As shown in FIG. 1, the mobile phone recording system according to the present embodiment includes a charger holder 102 instead of the charger holder 202.

The charger holder 102 has an external I / F 206
In addition, a control unit 501 as a second control unit, a signal processing unit 502, a light emitting unit 505, an analog signal input terminal 506, and a storage medium unit 507 are provided. The control unit 501 includes a recording DSP 508, and the signal processing unit 502 and the recording DSP 508 constitute a data recording unit 107. The storage medium unit 507 is
This unit is capable of storing a storage medium such as an SD card, and has an I / F for performing input / output with the outside when the storage medium is mounted.

The control unit 501 inputs and outputs data to and from the mobile phone 201 via the external I / F 206. The control unit 501 includes a signal processing unit 502 and a recording DSP 5 based on control data transmitted from the mobile phone 201.
03, the light emitting unit 505, and the storage medium unit 507, and output the recording state of the recording state via the external I / F 206. The signal processing unit 502 converts the analog signal (audio signal) input from the analog signal input terminal 506 into a PCM signal under the control of the control unit 501, and outputs the PCM signal to the recording DSP 508.
The recording DSP 508 encodes the PCM signal output from the signal processing unit 502 and compresses the data into MP3 music data, and further converts the MP3 compressed music data into unique data of the mobile phone 201 as key data. The storage medium unit 50
7, and stores the encrypted data together with the encryption flag in the storage medium mounted on the storage medium. Note that the mobile phone 201
The unique information of the mobile phone 201 is unique information assigned to each mobile phone 201 for each mobile phone.
There are a D number, a telephone number assigned at the time of subscription, a mail address, a production number assigned at the time of shipment from the factory, and a number obtained by combining them. The encryption flag is a flag indicating whether data stored in the storage medium is encrypted.

FIG. 2 is a data flow diagram showing a data flow at the time of recording in the portable telephone recording system of the present embodiment. As shown in FIG. 2, the PCM signal 1001 output from the signal processing unit 502 is converted by the recording DSP 508 into compressed data 1004 of the MP3 system, encrypted using the unique information of the mobile phone 201, and stored. The data is stored on a recording medium as data 1006.

The light emitting unit 505 has a recording lamp which lights up when the data recording unit 107 is recording.
The data recording unit 107 is a light emitting unit 5 when recording is in progress.
At 05, the recording lamp is turned on to notify the user that recording is in progress.

The portable telephone 201 has a reproducing function in which the data reproducing unit 204 reads out and reproduces music data of the MP3 system or the like stored in the storage medium mounted on the storage medium unit 205 by a user's operation. ing.

The control unit 403 of the mobile phone 201
Is operated by a user input from the operation unit 409.
Control data is transmitted to the control unit 501 via the external I / F 203 and the external I / F 206 to control the data recording unit 107 of the charger holder 102. The data recording unit 107
Based on the control data transmitted from control unit 403, the above-described recording operation is performed, and the recording state is output to external I / F 206. Control unit 40 of mobile phone 201
3 monitors the state of the recording input to the external I / F 203.

The external I / F 203 and the external I / F 20
6, the power supply line needs to be wired, but an interface for input / output of control data of the data recording unit 107 from the mobile phone 201 or a recording state output from the data recording unit 107 The interface for input / output of the device need not always be a wire such as a contact type connector.

Further, the control unit 403 of the mobile phone 201 in the mobile phone recording system of the present embodiment includes a playback DSP 406 instead of the playback DSP 406 '.

When the data stored in the memory 404 or the storage medium is encrypted, the control unit 403 controls the reproduction DSP 406 ′ to execute the key data, that is, The information is decrypted using the information, and the decrypted data is
And decodes the PCM signal into an audio processing unit 411.
Output to The audio processing unit 411 performs D / A conversion of the input PCM signal into an analog audio signal, and
2 for playback output. That is, in the mobile phone 201, the encrypted music data stored in the storage medium mounted on the storage medium unit 205 is read out by the data reproduction unit 204 to reproduce the music data.

FIG. 3 is a data flow diagram showing a flow of data at the time of reproduction in the portable telephone recording system of the present embodiment. As shown in FIG. 3, the stored data 1006 stored in the storage medium is compressed by the recording DSP 508 using the unique information 1002 of the mobile phone 201.
004 and decoded into a PCM signal 1001.

Next, the operation of the portable telephone recording system of the present embodiment during recording will be described. FIG. 4 is a flowchart showing the operation of the control unit 403 of the mobile phone 201 at the time of recording in the mobile phone recording system of the present embodiment. As shown in FIG. 4, the control unit 403
9 and waits for a recording operation by the user (step S601).

When a user performs a recording operation, the control unit 403 monitors the external I / F 203 and
Check for the presence of 2. Further, if the external I / F 407 and the external I / F 504 of the charger holder are not wired such as a contact type connector, it is also detected whether communication is possible (step S602).

In step S602, if there is a charger holder 102, the control unit 403 controls the external I / F
The personal information of the mobile phone 201 is sent together with the recording start control data to the charger holder 102 via the 203 (step S603). When there is no charger holder 102, the control unit 403 displays an error message indicating that there is no charger holder 102 on the display unit 410 (step S61).
1).

The control unit 403 receives a reply about the recording start control data of the charger holder 202 via the external I / F 203, and checks whether or not the recording is normally started based on the reply content (step). S604). In step S604, the control unit 403 sets the charger holder 1
When the response of the recording start is confirmed from 02, the control unit 403
Causes the display unit 410 to display that recording is in progress (step S605).

If the reply is other than the start of recording, the control unit 403 displays an error message indicating that recording is not possible on the display unit 410 (step S611).

After step S605, the control unit 403
The external I / F 407 monitors whether or not the recording state of the charger holder 102 is recording.
While checking whether or not the error information has been received (step S606), the process waits until the recording state is no longer being recorded (step S607). Step S6
If error information has been received in step 06, the process proceeds to step S611 to control the display unit 410 to display an error message.

If it is determined in step S607 that the recording state of the charger holder 102 cannot be monitored due to an incoming call to the mobile phone 201 or the like, the control unit 403 temporarily stops the recording state of the charger holder 102, and terminates the incoming call. After the processing is completed, the recording state of the mobile phone 201 is again monitored, and the monitoring of the recording state of the charger holder 102 is restarted.

If the recording state is not being recorded in step S607, control unit 403 sends inquiry data to charger holder 102 via external I / F 206 (step S608).

The control unit 403 confirms the recording state such as the recording completion, the recording being completed, the recording completion due to the interruption of the recording, etc., based on the reply content from the charger holder 202. Step S to continue monitoring
It returns to 606 (step S609).

In step S609, when the reply content indicates that the recording has been completed normally, the control unit 403 controls the display unit 410 to display as a recording result that the recording has been completed normally. If the reply is a recording interruption, the display unit 410 is controlled to display as a recording result that recording has been interrupted (step S6).
10).

Next, the operation of the charger holder 102 during recording will be described. FIG. 5 is a flowchart showing the operation of the charger holder 102 in the mobile phone recording system of the present embodiment. The control unit 501 controls the external I / F 20
The control data transmitted from the mobile phone 201 via the mobile phone 6 is monitored (step S701). When receiving the control data, the control unit 501 checks whether the control data is control data for starting recording (step S70).
2). If the control data is not the recording start control data in step S702, the control unit 501 checks whether the control data is recording state inquiry data (step S713).

In step S713, if the control data is the inquiry data of the recording state, the control unit 50
1 transmits data held as a recording state such as during recording, recording completion, recording interruption, error information, and the like to the control unit 403 of the mobile phone 201 via the external I / F 206, and returns to step S701. The monitoring of the control data is continued (step S714). In step S713,
If the control data is the inquiry data of the recording state, the control unit 501 returns to step S701 and continues monitoring the control data again.

In step S702, if the control data is control data for starting recording, the control unit 501
It is determined whether or not a storage medium is mounted on the storage medium unit 507 (step S703). Step S7
03, when the storage medium is attached to the storage medium unit 507, the control unit 501 holds the unique information of the mobile phone 201 sent together with the recording start control data, controls the light emitting unit 505, and sets the recording lamp. Is turned on (step S704).

If the storage medium is not mounted on the storage medium unit 507 in step S703, the control unit 501 holds the error information indicating that there is no storage medium as the recording state (step S715), and stores the error information indicating that there is no storage medium. An external I / F2 is provided to the control unit 403 of the mobile phone 201.
, And returns to step S701 (step S716).

After step S704, the control unit 501
The signal processing unit 502 is controlled, and the analog signal input terminal 50 is controlled.
6 to monitor the presence or absence of a sound input (step S70).
5). In step S705, when there is no sound input within a predetermined time, the control unit 501 holds error information indicating no sound input as a recording state (step S717).
The error information of no sound input is sent to the control unit 4 of the mobile phone 201.
03 via the external I / F 206 and step S7
01 (step S718).

In step S705, when it is confirmed that a sound input has been made within a predetermined time, the control unit 501
Converts a PCM signal, which has been A / D converted from an analog signal (audio signal) by the signal processing unit 502, into a recording DSP.
A recording process of compressing the data into the MP3 format according to 508, encrypting the compressed data using the held unique information of the mobile phone 201 as key data, and storing the encrypted data in the storage medium mounted on the storage medium unit 507. Execute.
At this time, the storage medium, along with the encrypted data,
An encryption flag indicating whether the data has been encrypted is also stored (step S706).

The control unit 501 monitors the recording state and detects whether or not the recording is completed (step S707). If the recording is in progress, the control unit of the mobile phone 201 transmits data indicating that the recording is in progress. The data is transmitted to the 403 via the external I / F 206 (step S719), and the recording is continued. Step S
If the end of recording is detected in 707, the control unit 501
Stops the recording process (step S708), and determines whether the recording has been completed normally (step S709).

If it is determined in step S 709 that the process has been completed normally, the control unit 501 holds information indicating that the process has been completed normally as a recording state (step S 710). Part 403
Via the external I / F 206 (step S71).
1) Control the light emitting unit 505 to turn off the recording lamp (step S712), and return to step S701.

If it is determined in step S709 that the recording has been interrupted, the control unit 501 holds information indicating that the recording has been interrupted as the recording state (step S72).
0), information indicating that the recording has been interrupted is output to the control unit 403 of the mobile phone 201 via the external I / F 206 (step S721), and the light emitting unit 505 is controlled to blink the recording lamp (step S722). It returns to S701.

Next, the operation of the portable telephone recording system of the present embodiment during recording will be described. FIG. 6 shows a mobile phone 201 in the mobile phone recording system of the present embodiment.
4 is a flowchart showing the operation of the control unit 403.

As shown in FIG. 6, first, the control unit 403
Monitors the operation unit 409 and waits for a reproduction operation by the user (step S1201).

When the user performs a recording operation, control unit 403 checks whether or not a storage medium is mounted on storage medium unit 408 (step S1202).

In step S1202, if the storage medium has been loaded, the control
0 to indicate that playback is in progress (step S120).
3).

If it is determined in step S1202 that the storage medium has not been loaded, a message indicating that playback is not possible is displayed on the display unit 410 (step S1204), and the process ends.

After step S1203, the control unit 403
Checks the presence / absence of an encryption flag indicating whether or not the music data to be reproduced is encrypted, together with the music data to be reproduced (step S1205). Step S12
If there is an encryption flag in step 05, the encrypted music data is decrypted into compressed data of the MP3 system using the unique information which is the unique information of the mobile phone as key data (step S1206), and the compressed data is The data is decoded into a PCM signal (step S1207), and the music data is reproduced.

In step S1205, when there is no encryption flag, the control unit 403 performs the decryption on the data stored in the storage medium without performing decryption.
The data is decoded into a PCM signal as compressed data of three systems (step S1209), and music data is reproduced.

The control unit 403 operates during playback of music data.
The operation unit 409 is monitored, and when a user operation for stopping reproduction is detected, reproduction of music data is stopped (step S
1208, step S1210), and the process ends.

As described above, in the portable telephone recording system of the present embodiment, the portable telephone charger holder 102
Have a recording function of recording music data of the MP3 system. By doing so, in the mobile phone recording system of the present embodiment, even the mobile phone 201 having the conventional configuration can record music without using an expensive external device such as a personal computer. Furthermore, in the mobile phone recording system of the present embodiment, since the mobile phone 201 and the recording function of the mobile phone charger holder 102 operate independently of each other, the mobile phone 201 can perform the incoming call processing without interrupting the recording. Other processing can be performed.

In the mobile phone recording system of the present embodiment, the control section 403 of the mobile phone 201 controls the recording function of the mobile phone charger 102. By doing so, the user can perform a recording operation from the operation unit 409 of the mobile phone 201, and it is not necessary to provide the operation unit 409 in the charger holder 102 for the mobile phone. And miniaturization are possible.

In the portable telephone recording system of the present embodiment, the control unit 403 of the portable telephone 201 temporarily suspends monitoring of the recording state of the charger holder 102 when a transition is made to a call state due to an incoming call or the like. Thus, the recording state of the charger holder 102 is not constantly monitored. By doing so, in the mobile phone recording system of the present embodiment, music data can be recorded satisfactorily regardless of the processing load on the mobile phone 201, and even if there is an incoming call during recording, The charger holder 102 can be separated.

Further, in the portable telephone recording system of the present embodiment, the compressed data encrypted by using the unique information of the portable telephone 201 is stored.
The compressed data can be reproduced only by a system equipped with. Therefore, in the mobile phone recording system of the present embodiment, the effect of protecting the copyright can be enhanced.

(Second Embodiment) Next, a portable telephone recording system according to a second embodiment of the present invention will be described.
FIG. 7 is a block diagram showing the configuration of the mobile phone recording system of the present embodiment. As shown in FIG. 7, the configuration of the mobile phone recording system of the present embodiment differs from the configuration of the mobile phone recording system of the first embodiment shown in FIG. 1 in that a charger holder 802 is used instead of the charger holder 102. It has different points. The charger holder 802 includes a speaker 808 and a signal processing unit 502 instead of the speaker 808.
The difference from the charger holder 102 is that a signal processing unit 803 is provided. The signal processing unit 803 has a D / A conversion circuit in addition to the configuration of the signal processing unit 502. Note that the speaker 808 may be an analog signal output terminal for outputting an analog signal.

In the mobile phone recording system of the present embodiment, all the operations of the mobile phone recording system of the first embodiment can be performed. In the mobile phone recording system of the present embodiment, the control unit 403 of the mobile phone 201
The playback DSP 406 decrypts the encrypted MP3 compressed data using the unique information of the mobile phone 201, converts the decrypted compressed data into a PCM signal, transfers the PCM signal to the charger holder 801 and charges the battery. Under the control of the control unit 501 of the container holder 801, the PCM signal is transmitted to the signal processing unit 8.
03 converts the PCM signal into an audio signal by a D / A conversion circuit.
/ A conversion, and the audio signal can be reproduced and output by the speaker 808.

The detailed operation of each section of the portable telephone recording system of the present embodiment will be described.

First, the control unit 403 of the mobile phone 201
Transmits reproduction control data to the charger holder 802 via the external I / F 203 by a user operation on the operation unit 409. After that, the control unit 403 controls the display unit 410 to display that music is being played.

The control unit 801 of the charger holder 802 controls the signal processing unit 803 and the light emitting unit 505 according to the control data of the mobile phone, and based on the data transmitted from the control unit 403 of the mobile phone 201, the external I / O F203, 20
The PCM signal input via the input unit 6 is input to the signal processing unit 803, and the reproduction lamp (also used as a recording lamp) of the light emitting unit 505 is turned on. Signal processing unit 803
Performs D / A conversion of the PCM signal into an audio signal under the control of the control unit 501, and reproduces and outputs the audio signal from the speaker 808.

The volume of the sound output from speaker 808 is adjusted by the user operating operation unit 409, and control unit 403 sends control data for volume adjustment to charger holder 802 based on the operation. . When the control data of the volume control is transmitted from the control unit 403 of the mobile phone 201, the control unit 801 transmits the D / D of the signal processing unit 803.
The amplifier circuit provided after the A conversion circuit is controlled to adjust the volume of the sound reproduced and output from the speaker 808.

In the portable telephone recording system of the present embodiment, the charger holder 802 for the portable telephone is not a portable one and does not necessarily need to be miniaturized. Therefore, the circuit scale and components of the circuit for reproducing and outputting the audio signal are required. There is a certain degree of freedom in the size, mounting method, and the like. Therefore, in the mobile phone recording system according to the present embodiment, the acoustic characteristics such as the S / N characteristics in the reproduction output of the audio signal can be made superior, so that high quality music can be provided to the user.

Further, the portable telephone recording system of the present embodiment is provided with the speaker 808 in the charger holder 802, so that the recording state such as the start of recording can be provided to the user by means other than the recording lamp, that is, from the speaker 808. It is also possible to convey with the sound of.

(Third Embodiment) Next, a portable telephone recording system according to a third embodiment of the present invention will be described.
FIG. 8 is a block diagram showing a configuration of the mobile phone recording system of the present embodiment. As shown in FIG. 8, the configuration of the mobile phone recording system of the present embodiment is different from the configuration of the mobile phone recording system of the second embodiment shown in FIG. 902 is provided.

The charger holder 902 is connected to the charger holder 80
2 in that a control unit 901 is provided instead of the control unit 501. The control unit 901 includes a playback DSP
909 is different from the control unit 501.

In the mobile phone recording system of the present embodiment, under the control of the control unit 403 of the mobile phone 201, M
The music data compressed by the P3 method, encrypted with the unique information of the mobile phone 201, and stored in the storage medium attached to the storage medium unit 507 of the charger holder 902 is reproduced by the DSP 909 for reproduction of the charger holder 902. The audio signal is decoded and decoded into a PCM signal, and an audio signal is reproduced and output from the speaker 808 of the charger holder 902.

The detailed operation of each section of the portable telephone recording system of the present embodiment will be described.

The control unit 403 of the mobile phone 201 operates in response to a user operation input from the operation unit 409 to control the external I / O.
The playback control data is transferred to the charger holder 902 via F203.
And the display unit 410 is controlled so as to display that music is being reproduced.

The control unit 901 of the charger holder 902 converts the music data stored in the storage medium mounted on the storage medium unit 507 based on the reproduction control data transmitted from the control unit 403 of the mobile phone 201. DSP9 for playback
In step 09, decoding is performed using the unique information of the mobile phone 201, decoded into a PCM signal, and the PCM signal is output to the signal processing unit 502, and a reproduction lamp provided in the light emitting unit 505 (may also be used as a recording lamp) Lights up.

The signal processing section 502 performs D / A conversion of the PCM signal into an analog audio signal, and reproduces and outputs the audio signal from the speaker 808. Note that the speaker 808
The volume control of the sound output from is performed by the same operation as the mobile phone recording system of the second embodiment.

The mobile phone recording system according to the present embodiment
The following effects are obtained in addition to the effects of the mobile phone recording system of the first and second embodiments.

In the portable telephone recording system of the present embodiment, when reproducing and outputting music data compressed in the MP3 system, the portable telephone 201 does not perform decoding processing and decoding processing of the compressed music data. This is performed with the charger holder 902. Therefore, much of the processing time of the control unit 403 of the mobile phone 201 can be devoted to other processing such as call processing, and as a result, the processing speed of other processing of the mobile phone 201 can be improved. it can.

In the portable telephone recording systems of the first to third embodiments, the charger holder has a recording function. However, the portable telephone recording system of the present invention is not limited to this. For those with a recording function,
Other accessories that can be connected to the charger or the external I / F 203 may be used. Further, in the mobile phone recording systems of the first to third embodiments, the MP3 system is adopted as a data compression system. However, the mobile phone recording system of the present invention is not limited to this. As a compression method, an MPEG2-AAC (Advanced Audio Coding) method, an MPEG4-AAC method, or another method may be employed. The storage medium of the storage medium units 205 and 507 may be a flash memory card, a compact flash (registered trademark) memory card, a smart media, or another storage medium.

[0083]

As described above, the portable telephone recording system of the present invention has the following six effects. (1) By having a recording function in the MP3 system or the like in an accessory such as a charger for a mobile phone or a charger holder, it is possible to use an external device such as a personal computer while maintaining the configuration of a conventional mobile phone. Music data can be recorded at low cost. (2) An accessory such as a charger for a mobile phone or a charger holder has a recording function of an MP3 system or the like, so that an analog signal input terminal for recording music data and a recording / reproducing circuit such as a DSP can be provided. Since the mobile phone need not be provided, the size and weight of the mobile phone can be reduced. (3) Since the mobile phone controls the recording function by a user operation, there is no need to provide an operation unit in the mobile phone charger holder having a built-in recording function.
The circuit in the charger holder has a simple configuration, and the charger holder can be made inexpensive and downsized. (4) Since the recording function can be a function that operates independently of the mobile phone, the mobile phone does not need to interrupt the recording due to the effect of the incoming call process in which processing is started at an unspecified time. Therefore, it is possible to reduce the trouble of the user at the time of recording. (5) The size of the circuit for recording / reproducing audio signals is small because accessories such as a charger for a mobile phone or a charger holder are less required to be miniaturized than a mobile phone due to the usage form. Also, since there is a degree of freedom in the mounting method and the like, the acoustic characteristics such as the S / N characteristics of the recording can be enhanced. (6) Accessories such as battery chargers or charger holders with built-in recording functions do not require the flexibility of data to be stored, unlike PCs that are required to be versatile. By selecting a storage medium that cannot easily copy the stored music data,
The protection effect such as music copyright can be enhanced. (7) Since compressed data encrypted using the unique information of the mobile phone is stored, the compressed data can be reproduced only by a system equipped with the mobile phone. Therefore, the effect of protecting the copyright can be enhanced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a mobile phone recording system according to a first embodiment of the present invention.

FIG. 2 is a data flow diagram showing a data flow at the time of recording in the cellular phone recording system according to the first embodiment of the present invention.

FIG. 3 is a data flow diagram showing a data flow at the time of reproduction in the mobile phone recording system according to the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of the mobile phone during recording in the mobile phone recording system according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating an operation of the charger holder during recording in the cellular phone recording system according to the first embodiment of the present invention.

FIG. 6 is a flowchart illustrating an operation of a control unit 403 of the mobile phone 201 in the mobile phone recording system according to the first embodiment of the present invention.

FIG. 7 is a block diagram illustrating a configuration of a mobile phone recording system according to a second embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of a mobile phone recording system according to a second embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of a conventional cellular phone recording system.

FIG. 10 is a block diagram showing a configuration of a conventional cellular phone recording system having a recording function.

[Explanation of symbols]

 102, 202, 802 Charger holder 107, 303, 807 Data recording unit 201, 301 Mobile phone 203, 206 External I / F 204 Data reproduction unit 205, 507 Storage medium unit 306, 506 Analog signal input terminal 307, 502, 803 Signal processing unit 308, 508 Recording DSP 401 Antenna 402 Wireless unit 403, 501, 901 Control unit 404 Memory 405 CPU 406, 406 ', 909 Playback DSP 409 Operation unit 410 Display unit 411 Audio processing unit 412, 808 Speaker 413 Microphone 505 Light emitting unit 1001 PCM signal 1002 Mobile phone unique information 1004 Compressed data 1006 Stored data S601 to S610, S701 to S722 Steps S1201 to S1210 Steps

Claims (9)

[Claims] An operation unit which is an input means of a man-machine interface, controls the operation unit and controls wireless communication, converts compressed data of a predetermined format into a digital signal using a reproduction DSP, and outputs the digital signal. A mobile phone comprising: a first control means for performing the conversion; a voice processing unit for converting the digital signal into a voice signal; a speaker for reproducing and outputting the voice signal; and a mobile phone including accessories connected to the mobile phone. In the telephone recording system, the accessory includes: a storage medium; an input terminal for inputting an analog signal; signal processing means for A / D converting an audio signal input from the input terminal into a digital signal and outputting the digital signal; A second control unit for converting a digital signal output from the signal processing unit into compressed data using a recording DSP and controlling a recording process for storing the compressed data in the storage medium; A recording system for a mobile phone, comprising: 2. The signal processing means further comprises a D / A conversion circuit for converting an input digital signal into an audio signal and outputting the audio signal, and wherein the accessory comprises an audio output from the D / A conversion circuit. 2. The portable telephone recording system according to claim 1, further comprising a speaker for reproducing and outputting a signal, wherein the digital signal output from the reproduction DSP is input to the D / A conversion circuit under the control of the second control means. 3. The reproduction DSP which converts the compressed data stored in the storage medium into a digital signal and outputs the digital signal to the D / A conversion circuit under the control of the second control means. 3. The mobile phone recording system according to claim 2, further comprising: 4. The recording DSP encrypts the compressed data using the unique information of the mobile phone, and stores the encrypted data in the storage medium. The reproduction DSP encrypts the compressed data to be reproduced. If not, the data is directly converted into a digital signal. If the compressed data to be reproduced is encrypted, the data is decrypted using the unique information and then converted into a digital signal. Item 4. The mobile phone recording system according to any one of Items 1 to 3. 5. The second control means controls the recording process when recording start control data is transmitted from the first control means based on a recording operation from the operation unit,
The mobile phone recording system according to claim 1, wherein a recording state in the recording process is transmitted to the first control unit. 6. The system according to claim 5, wherein the first control means temporarily stops monitoring the recording state until the incoming call processing is completed, when an incoming call is received while the recording state is being recorded. Mobile phone recording system. 7. The portable telephone recording system according to claim 1, wherein the accessory is a charger holder. 8. The portable telephone recording system according to claim 1, wherein the accessory is a charger. 9. The portable telephone recording system according to claim 1, wherein the compression system of the compressed data is an MP3 system.