JP2000312384A - Information mobile terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow one transmitter-receiver to distribute data to another transmitter-receiver while preventing limitless copy. SOLUTION: The terminal is provided with a storage means 201 that stores source data received from the outside, a transmission frequency revision means 19 that sets the transmission frequency of a transmission means, and a reception frequency setting means 19 that sets the reception frequency of a reception means. The transmission means 20 transmits data from the storage means 201 by applying waveform modulation to the data with the frequency set by a transmission frequency setting means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information terminal device, and more particularly to a portable information terminal for distributing source information from a portable telephone to which the source information has been distributed to another portable telephone or information terminal.

[0002]

2. Description of the Related Art In recent years, mobile phones have rapidly become widespread due to the maintenance of base stations, and various services have been studied in addition to original telephone calls. A mobile phone is equipped with a microphone, a speaker, and a liquid crystal display, and has functions as an AV device and a game device. In addition, although a mobile phone is always carried by a user, it is left unattended in a state other than a telephone call. Therefore, in such a left state, there is a potential need to use the mobile phone as an AV device or the like.

[0003] The inventors of the present application pay attention to such potential needs, and intend to construct a system capable of distributing source information such as music information and game information to a mobile phone.

[0004]

A user who has received distribution of source information may want to temporarily listen to the music information or the like to another user as a secondary need. Such a secondary need is to satisfy the essential communication function of an information portable terminal including a mobile phone.

Accordingly, an object of the present invention is to provide such a communication function to further satisfy the secondary needs of the user.

[0006]

In order to solve the above problems,
The present invention has the following features.

According to a first aspect of the present invention, there is provided an information portable terminal device including a transmitting unit, a receiving unit, a voice output unit, and a display unit for displaying characters, figures, and the like, and stores externally received source data. Storage means, transmission frequency changing means for setting a transmission frequency of the transmission means, and reception frequency setting means for setting a reception frequency of the reception means, wherein data from the storage means is set by the transmission frequency setting means The waveform is modulated at the set frequency and output from the transmitting means.

According to a second aspect of the present invention, in the first aspect, the source data is scrambled by a predetermined key, and the storage means stores at least the scrambled source data and the key in the portable information terminal. A key scrambled with the device ID is written, and when the source data is output by the transmitting means, the key is generated by descrambling the scrambled key with the ID of the information portable terminal device. After descrambling the scrambled source data with the key, the descrambled source data is waveform-modulated at the transmission frequency.

According to a third aspect of the present invention, in the second aspect, the storage means is detachable from the portable information terminal, and further, the storage means descrambles the key and descrambles the voice. Control means for prohibiting a third party from outputting the scrambled key.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the information portable terminal device is a portable telephone device, and the source data is music data.

According to a fifth aspect of the present invention, in the fourth aspect, there is provided a voice synthesizing means for synthesizing a voice from a voice input unit with the music data read from the storage means, and Is transmitted by the transmission unit.

The invention according to claim 6 is the invention according to claim 4 or 5.
, The transmission frequency and the reception frequency are set corresponding to the numeric keypad of the mobile phone device.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment according to the present invention will be described.

1. First Embodiment FIG. 1 shows a system configuration of the present embodiment. In the figure,
101 is a mobile phone, 201 is a memory card. The mobile phone 101 has a unique ID in a ROM as described later.
(Read Only Memory). Further, the memory card 201 is detachably mounted. Here, the memory card 201 has both functions of a RAM (Random Access Memory) and a controller. The memory card 201 stores music information distributed from the center 300, predetermined key information, and the like. The data distributed from the center is FM (Frequency Modulati
on) signal.

The distribution of music data is performed in the following procedure. As an example, it is assumed that the content is distributed to the mobile phone 101 in FIG. First, from the mobile phone 101 to the center 300
Execute telephone communication. In response, Center 300
Provides the mobile phone 101 with search information for searching for music data. The mobile phone 101 displays the search information on the monitor. The user selects desired music data by key operation according to the search screen. When such a selection is made, the mobile phone 101 transmits the result of the selection to the center.

The center 300 scrambles the selected music data with a predetermined key. At the same time, based on the telephone number of the mobile phone 101, the TEL ID of the telephone number is determined. Here, the center 300
It has correspondence tables of TEL IDs and telephone numbers of all mobile phones in advance. The TEL ID is determined based on the correspondence table. The center 300 scrambles the key based on the TEL ID.

Here, the scramble includes not only the rearrangement of the data array but also the encryption according to a predetermined algorithm.

Thereafter, the center 300 transmits the scrambled music data (hereinafter, referred to as scrambled music data) and a key scrambled by the TEL ID (hereinafter, referred to as a scramble key) to the mobile phone 101. . Upon receiving such data, the mobile phone 101 writes the scrambled music data, the scramble key, and its own TEL ID on the memory card 201 as a pair.

When the music data is distributed in this way, the center charges a user corresponding to the telephone number of the mobile phone 101 for a fee for the distribution. A part of the charge is allocated to a copyright fee of the music data.

Next, a specific configuration of the mobile phone 101 used in the music distribution system will be described with reference to FIG.

In FIG. 1, reference numeral 11 denotes a reception processing unit which receives various FM signals transmitted from the center 300 or another portable telephone as will be described later and generates predetermined data. The receiving unit 11 receives the FM from another mobile phone.
A dedicated receiver 11a for receiving signals is included. The reception frequency of such a receiver can be variously set by the user, as described later.

Reference numeral 12 denotes an input / output control unit, which is a control unit 1 described later.
3. Controls data exchange with the decoder 16, the transmission processing unit 20, and the control unit 22 of the memory card 201. A control unit 13 controls each unit of the mobile phone 101. A ROM 14 stores data such as the ID of the mobile phone 101. An operation input unit 15 outputs a command corresponding to an operation of an operation button group arranged on the mobile phone 101. A decoder 16 decodes the descrambled music data. A D / A converter 17 converts digital music data from the decoder 16 into an analog audio signal. An output unit 18 outputs an analog audio signal output from the D / A converter 17 from a speaker.

Reference numeral 19 denotes a frequency change unit which issues a command to change the reception frequency to the receiver 11a arranged in the reception processing unit 11. Such a frequency change command is issued by the user operating the numeric keypad of the mobile phone 101. That is, the mobile phone 1 is stored in the ROM unit 14.
Various frequencies are set in advance according to the ten key of 01. The frequency changing unit 19 controls the receiver 11a so as to have a frequency corresponding to a ten-key operation by a user.

Reference numeral 20 denotes a transmission processing unit which outputs an FM signal obtained by FM-encoding the music data from the input / output control unit 12. Here, the transmission frequency of the FM signal is set in accordance with a ten-key operation by the user, similarly to the reception processing unit 11.

Reference numeral 21 denotes a storage unit provided in the memory card 201, and an area for storing a TEL ID, a scramble key, and scramble music data is prepared. Here, the TEL ID, the scramble key, and the scramble music data can be recorded for a plurality of songs.

Reference numeral 22 denotes a control unit which controls data exchange with the input / output control unit 12 on the mobile phone 101 side. Further, the control unit 22 performs a process of decoding the scrambled music data by using a key. Here, the control unit 2
2 can only write data to the TEL ID area and the scramble area of the storage unit 21;
The output to the side is controlled to be impossible.

Reference numeral 23 denotes a key descramble unit, which is a storage unit 3
01 is descrambled by the TEL ID to generate a key. The generated key is output to the control unit 22 and used for descrambling the scrambled music data.

Hereinafter, the operation of the present embodiment will be described.

(1) Distribution from Center The scrambled music data and the scramble key distributed from the center 300 as described above are transmitted to the memory card 20 via the reception processing unit 11 and the input / output control unit 12.
1 and written in the scramble key area and the scrambled music data area of the storage unit 21, respectively.

Further, the portable telephone 10 is stored in the ROM section 14.
1 is read, and this is read by the control unit 22 of the memory card 201 via the control unit 13 and the input / output control unit 12.
And written to the TEL ID area of the storage unit 21.

(2) Reproduction of Music Data After receiving the distribution as described above, when the user operates the operation button unit to instruct reproduction of a predetermined music title,
The operation input unit 15 instructs the control unit 13 to reproduce the title. In response to this, the control unit 13 sets each unit to the reproduction mode and sends a reproduction command of the corresponding scrambled music data to the control unit 22 of the memory card 201. In response to the instruction, the control unit 22 sends the scramble key and the TEL ID of the title to the key descramble unit 23. The key descrambler 23 reproduces a key from the scramble key and the TEL ID, and sends the key to the controller 22.

Thereafter, the control unit 22 sequentially reads out the scrambled music data from the storage unit 21, sequentially descrambles the scrambled music data using the key, and sends it to the input / output control unit 12 of the mobile phone 101.
The input / output control unit 12 sends the descrambled music data to the decoder 16. Hereinafter, the decoder 16,
By the processing of the D / A converter 17 and the output unit 18, the music of the title is output from the speaker.

(3) Distribution to Other Mobile Phones For convenience, a case where music data is distributed from the mobile phone 101 to the mobile phones 102 and 103 in FIG. 1 will be described.

In the reproduction mode, the mobile phone 101
When a music data distribution command and a distribution frequency setting are performed, the control unit 13 receives the instruction and sets the transmission processing unit 20.
Is activated. Here, the transmission processing unit 20 FM-modulates the music data at a frequency set by the user, and outputs this as an FM wave.

On the other hand, the mobile phones 102 and 103 receive the reception command and the setting of the reception frequency from the user, and the frequency change unit 19 sends the reception frequency setting command to the receiver 11a in the reception processing unit 11. Done.

Here, the reception frequency set by the mobile phones 102 and 103 (receiving side) is
The transmission frequency is set by the user as the same as the transmission frequency set by the (distribution side).

In this way, the receiving-side mobile phone 10
In steps 2 and 103, a state is set in which music distribution from the mobile phone 101 can be received. Mobile phones 102 and 103
Is transmitted to the decoder 16 via the input / output control unit 12, and is decoded there, and is output from the speaker by the D / A converter 17 and the output unit 18 at the subsequent stage.

According to the present embodiment, by distributing music data from the mobile phone 101 to the mobile phones 102 and 103, users who own these mobile phones can simultaneously listen to predetermined music. Become like In addition, since the transmission frequency and the reception frequency between the mobile phones can be freely set between the users, it is possible to prevent interference with other mobile phones and eavesdropping.

In the above embodiment, the music data from the input / output control unit 12 is distributed and received. Instead, the music data output from the decoder 16 or the D / A converter 17 The output music signal may be distributed and received. In such a case, the transmission processing unit and the reception processing unit that function for distribution between mobile phones are arranged between the decoder 16 and the D / A converter 17 or between the D / A converter 17 and the output unit 18, respectively. Just do it.

2. Second Embodiment FIG. 3 shows a configuration of a mobile phone according to a second embodiment.
The same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the present embodiment, an improvement is made so that the user's voice can be simultaneously delivered from the mobile phone 101 in addition to the music data. In the figure, reference numeral 24 denotes an input unit including a microphone of a mobile phone. 25 is a mixing section,
The audio signal output from the input unit 24 is mixed with the analog music signal output from the D / A converter 17 and sent to the A / D converter 26 and the output unit 18. An A / D converter 26 converts the mixed audio signal into digital data. An encoder 27 performs encoding corresponding to the decoding of the decoder 16.

The embodiment will be described below. The operation in the first embodiment is executed as it is in the present embodiment. In addition, in the present embodiment, a mode for mixing the microphone voice of the user with the music data (voice mixing mode) is prepared.

When the audio mixing mode is set, the mixing section 25 mixes the analog audio signal from the D / A converter 17 with the analog audio signal from the input section 24, and mixes the analog audio signal from the input section 24 with the output section 18 and A / A Send to the D converter 26. Then, the A / D converter 26 and the encoder 27 digitize and encode the audio signal after the mixing, and send it to the transmission processing unit 20. Here, the music data input from the input / output control unit 12 to the transmission processing unit 20 is blocked. Therefore,
The transmission processing unit 20 converts the encoded data obtained by mixing the audio data of the user into the music data into F
The signal is M-modulated and transmitted as an FM wave.

On the other hand, the mobile phone 1 receiving the FM signal
On the 02 and 103 sides, the mixed music data is sent to the decoder 16 and the D / A converter 17 via the reception processing unit 11 and the input / output unit 12, where they are converted into analog signals. Sent. The mixing section 25 sends the signal to the output section 18 as it is. Thus, the output unit 18 outputs a sound in which the voice of the user of the mobile phone 101 is mixed with the music to be distributed.

When the receiving user inputs voice through the input unit 24 in the voice mixing mode, the voice signal is mixed by the mixing unit 25 of the receiving mobile phones 102 and 103, and the output unit 18 Output from At the same time, the input audio signal passes through the mixing unit 25, is sent to the A / D converter 26 and the encoder 27, and is thereafter transmitted from the transmission processing unit 20. The mobile phone 101 (distribution side) receives the transmission from the mobile phones (reception side) 102 and 103 and decodes and D / A converts the outgoing call through a path (not shown). Then, the analog audio signal is mixed with the audio signal by the mixing unit 25 and then output from the output unit 18.

Although various embodiments of the present invention have been described above, the present invention is not limited to these embodiments.
It goes without saying that various other changes are possible. For example, in the above embodiment, the dedicated receiver 11a for distribution is separately provided, but the receiver originally provided in the mobile phone may be shared. However, in such a case, since the receiving frequency of the receiver is set to be different from the receiving frequency at the time of telephone communication, telephone transmission becomes impossible in the music distribution mode.

In the above embodiment, transmission and reception are performed using FM waves, but AM waves may be used instead. Further, in the above-described embodiment, the information to be distributed is music information. However, the present invention is not limited to this, and may be character information or game program information. In the above embodiment,
The distribution of information has been described using a mobile phone as an example, but other information terminals can be similarly realized.

[0048]

According to the present invention, source data can be simultaneously delivered from one portable information terminal to another portable information terminal, and the source data can be simultaneously reproduced between the portable information terminals. Here, the distribution and reception of the data utilize the transmission means and the reception means inherently provided in the portable information terminal, so that such a distribution does not require any additional special configuration.

Further, if the transmission frequency and the reception frequency can be changed as appropriate, it is possible to prevent interference between the distribution and the distribution of another information portable terminal device or the eavesdropping by another user. It can also be prevented.

Further, according to the second aspect of the present invention, since the source data stored in the storage means is scrambled, it cannot be reproduced even if it is copied as it is.
The value of the source information can be protected by preventing duplication. In particular, according to the third aspect of the invention, the key cannot be taken out from the storage means, so that such duplication can be more thoroughly prevented.

According to the fourth aspect, the same music can be enjoyed between the mobile phones at the same time, so that the communication function of the mobile phones can be further increased.

According to the fifth aspect, not only the music but also the voice of the user can be simultaneously delivered, so that the communication function of the portable telephone can be further increased.

According to the sixth aspect, since the transmission frequency and the reception frequency can be appropriately set using the numeric keypad of the mobile phone, the operability at the time of distribution can be improved.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram according to a first embodiment;

FIG. 2 is a block diagram according to the first embodiment;

FIG. 3 is a block diagram according to a second embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Cellular phone 201 Memory card 11 Reception processing unit 13 Control unit 14 ROM unit 15 Operation input unit 16 Decoder 17 DA converter 18 Output unit 19 Frequency change unit 20 Transmission processing unit 21 Storage unit 22 Control unit

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K027 AA11 CC08 5K067 AA21 AA34 BB00 BB21 DD17 EE02 EE25 EE61 FF23 HH21 HH23 HH36 5K101 KK18 LL11 LL12 NN23

Claims (6)

[Claims] 1. An information portable terminal device comprising a transmitting unit, a receiving unit, an audio output unit, and a display unit for displaying characters, figures, and the like, wherein the storage unit stores externally received source data; Means for setting a transmission frequency of the means, and reception frequency setting means for setting a reception frequency of the reception means, wherein data from the storage means is waveform-modulated at a frequency set by the transmission frequency setting means. And output from the transmitting means. 2. The information processing apparatus according to claim 1, wherein the source data is scrambled by a predetermined key, and the storage unit scrambles at least the scrambled source data and the key by an ID of the portable information terminal device. When the key is written and the source data is output by the transmission unit, the scrambled key is descrambled with the ID of the information portable terminal device to generate the key, and the scrambled source data is generated. An information portable terminal device, wherein after descrambling with the key, the descrambled source data is waveform-modulated at the transmission frequency. 3. The storage device according to claim 2, wherein the storage unit is detachable from the portable information terminal, and the storage unit includes a control unit that performs descrambling of the key and descrambling of the voice. The portable information terminal device, wherein the control means prohibits a third party from outputting the scrambled key. 4. The information portable terminal device according to claim 1, wherein the portable information terminal device is a portable telephone device, and the source data is music data. 5. The apparatus according to claim 4, further comprising voice synthesizing means for synthesizing voice from a voice input unit with music data read from the storage means, and transmitting the voice synthesized voice data by the transmitting unit. An information portable terminal device characterized in that: 6. The portable information terminal device according to claim 4, wherein the transmission frequency and the reception frequency are set corresponding to a numeric keypad of the portable telephone device.