JP2001242862A - Portable telephone and its musical score data forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone and a musical score data forming method which enables a user of the telephone to simply generate musical score data of an incoming call melody. SOLUTION: A rhythm timing detecting circuit 25 detects the timing of the leading edges of hits when a microphone 9 is hit with a constant rhythm and outputs the signals to a bus line 15. A CPU 1 generates rhythm data from the leading edge timing, reproduces the data and rhythm sound is generated from a speaker 12. A data detecting circuit 26 detects the data to generate musical score data from the output of the microphone 9. In orther words, when the user sings a melody using the wording of 'do, re, mi, fa, etc.', in accordance with the rhythm sound toward the microphone 9, the circuit 26 extracts necessary data to generate musical score data from the output of the microphone 9 at that time. Then, the CPU 1 generates the musical score data by the extracted data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone which generates a ringing melody based on musical score data stored in a storage means, and more particularly to a portable telephone which allows a user to easily form musical score data and its musical score data. It relates to a forming method.

[0002]

2. Description of the Related Art Conventionally, a ring tone (ring tone) of a mobile phone is used.
Was a simple sound of “boo-boo”, but as more mobile phone owners became, this simple ringtone could not be distinguished from other mobile phones, and in a crowded train etc., their own There was a problem that it could not be distinguished whether the cell phone was ringing or another person's cell was ringing. Therefore, in recent years, ringtones that use barren music or the like have been used as ringtones.

[0003]

However, when the ringing melody becomes popular, there is a desire to use a song unique to oneself, that is, a song created by oneself, as the ringing melody, instead of a barrage of music. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a mobile phone and a method for forming the music score data by which a user of the mobile phone can easily create music score data of a ringing melody. It is in.

[0004]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, when a call is received via communication means or when a user instructs reproduction, music score data in storage means is stored. In a mobile phone that generates music based on the audio signal, a conversion unit that converts audio into an electric audio signal, a duration detection unit that detects the duration of the audio signal output from the conversion unit, It is characterized by comprising voice recognition means for recognizing voice, and music score data forming means for forming music score data based on each output of the duration detecting means and the voice recognition means.

[0005] Further, the invention according to claim 2 is based on claim 1.
3. The portable telephone according to claim 1, further comprising pitch detecting means for detecting a pitch of the voice signal, wherein the musical score data detecting means generates the musical score data based on respective outputs of the duration detecting means, the voice recognizing means and the pitch detecting means. Is formed. The invention described in claim 3 is:
The mobile phone according to claim 1 or 2,
The duration detecting means includes a detecting / shaping means for detecting / shaping the audio signal, and a measuring means for measuring a time when an output of the detecting / shaping means is at or above a certain level. According to a fourth aspect of the present invention, in the mobile phone according to any one of the first to third aspects, the voice recognition means detects seven words "do-shi". It is characterized by.

[0006] The invention described in claim 5 is the second invention.
5. The mobile phone according to claim 4, wherein the pitch detecting means detects a pitch based on a time between zero-cross points of the audio signal. According to a sixth aspect of the present invention, there is provided a conversion unit that converts a blow by a user into an electric signal, a measurement unit that measures a time interval of the electric signal output from the conversion unit, and stores an output of the measurement unit. And a rhythm sound generating means for generating a rhythm sound based on the data in the storing means.

[0007] The invention described in claim 7 is based on claim 1.
A mobile phone characterized in that the mobile phone according to claim 6 is provided with the function of the mobile phone according to claim 6. The invention according to claim 8 is a portable telephone which receives a call via the communication means or generates a music based on the music score data in the storage means when the user instructs the reproduction, and outputs the sound to the portable telephone. Converting the voice signal to an original voice, recognizing the original voice from the voice signal, detecting the duration and pitch of the voice signal, and forming musical score data based on the recognition result and the detection result. This is a music score data forming method for a telephone.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the mobile phone according to the embodiment. In this figure, reference numeral 1 denotes a CPU (central processing unit) for controlling each part of the circuit, and 2 denotes a ROM in which a program of the CPU 1 is stored.
(Read only memory). 3 is R for data storage
It is an AM (random access memory) and has a battery backup. Reference numeral 4 denotes an operation unit provided with a numeric keypad for inputting a telephone number, various function keys, and the like.
Denotes a display unit including a liquid crystal display panel and a display control circuit.

Reference numeral 6 denotes a communication unit having an antenna 7, which transmits transmission data on a carrier wave and transmits the transmission data from the antenna 7, and demodulates an incoming signal received via the antenna 7 to obtain a C signal.
Output to PU1 or audio processing unit 8. The audio processing unit 8 converts the audio signal output from the microphone 9 into digital data, further compresses and outputs it as transmission data to the communication unit 6, and converts the audio data output from the communication unit 6 into an analog audio signal. Then, output to the speaker 10. Reference numeral 11 denotes a ring tone generation unit that forms a ring tone melody in accordance with an instruction from the CPU 1 and outputs it to the speaker 12.

In the ring tone generator 11, the controller 14 writes the musical score data supplied from the CPU 1 via the bus line 15 to the musical tone memory 16, and
Upon receiving a ring tone generation instruction from the CPU 1, the tone memory 16
The musical score data is read out from the melody sound source 18. The melody tone generator 18 forms a digital tone signal based on the score data supplied from the controller 14,
Output to DAC (D / A converter) 20. DAC2
Numeral 0 converts the digital tone signal into an analog tone signal and outputs the analog tone signal to the speaker 12 via the mixer 21. As a result, an incoming melody is generated from the speaker 12. The rhythm timing detection circuit 25 and the data detection circuit 2
6, the rhythm sound source 27 and the DAC 28 will be described later.

In the above configuration, when the user operates a key of the operation unit 4 to designate a built-in ring melody, the CPU
1 detects this, reads out the musical score data stored in advance in the ROM 2, and outputs it to the controller 14 via the bus line 15. The controller 14 writes the musical score data into the musical tone memory 16. Next, when an incoming call arrives, the communication unit 6 demodulates the incoming signal received via the antenna 7 and outputs the obtained incoming data to the CPU 1. The CPU 1 receives the incoming data, stores the telephone number of the caller included in the incoming data in the RAM 3, and then outputs a ring tone generation command to the controller 14 of the ring tone generating unit 11. Upon receiving this instruction, the controller 14 reads out the musical score data from the musical tone memory 16 and
Output to the melody sound source 18. Thereby, the speaker 1
A ring tone is generated from 2.

When the user of the mobile phone listens to the incoming melody and presses the receiving button of the operation unit 4, the CPU 1 detects this and outputs a ringing tone stop command to the ringing tone generating unit 11 and the voice processing unit 8 And outputs a line connection instruction to the communication unit 6. Thereafter, the line is connected to the caller, and the voice signal of the microphone 9 is transmitted to the caller. Further, an audio signal based on the audio data from the transmission source is output from the audio processing unit 8 to the speaker 10, and the speaker 10 emits a sound.

At the time of making a call, when the user inputs the telephone number of the destination using the operation unit 4, the CPU 1 writes the telephone number into the RAM 3 once, and then the communication unit 6
Output to The communication unit 6 transmits the telephone number on a carrier wave. When the transmitted telephone number reaches the destination via the telephone exchange network and the line is connected, the communication unit 6
In addition, a call using the microphone 9 and the speaker 10 is performed with the other party via the voice processing unit 8. The configuration described above is the same as that of a conventional mobile phone.

Next, a ring melody composed by a user can be set and reproduced on the portable telephone. Hereinafter, the configuration for that will be described. In FIG. 1, when the microphone 9 is hit with a constant rhythm, for example, when the microphone 9 is hit with "tone, ton, ton, tone, ton", the rising timing of the hit is Is shown in FIG. In this figure, 30
A detection / shaping circuit detects the output of the microphone 9 to extract a component on a relatively low frequency side, further shapes the extracted signal, and outputs the signal to the comparator 31.
The comparator 31 compares the output of the detection / shaping circuit 30 with a fixed level TH1, and outputs an “H (high)” level signal when the output of the detection / shaping circuit 30 is large, and outputs a “H (high)” signal when the output is small.
An L (low) level signal is output to the UP edge detection circuit 32. The UP edge detection circuit 32
MIC (microphone) blow sound flag 33 is set. The MIC impact sound flag 33 is connected to the bus line 15 via an interface (not shown). With such a configuration,
Each time the microphone 9 is struck, the MIC striking flag 33 is set at the rise.

Next, referring to FIG.
Is a circuit for detecting data for creating musical score data from the output of the microphone 9. That is, if the user
When the incoming melody composed by the user is set in this mobile phone, the user sings the melody toward the microphone 9 using the phrase "Dremifa ...". For example, sing like "Doremidmidmy ...". From the output of the microphone 9 at that time, the data detection circuit 26 extracts each data necessary for creating the musical score data. FIG. 3 is a diagram showing details of the data detection circuit 26. In this figure, reference numeral 41 denotes a detection / shaping circuit, which detects the output of the microphone 9 and extracts a relatively low-frequency component.
The extracted signal is further shaped into a waveform by the comparator 42.
Output to The comparator 42 includes a detection / shaping circuit 41
Is compared with the constant level TH2, and the detection / shaping circuit 3
When the output of 0 is large, an “H” level signal is output to the UP edge detection circuit 43 and the DOWN edge detection circuit 44 when the output of “0” is small.

The UP edge detection circuit 43 includes a comparator 3
The pulse signal Pu is output by detecting the rising edge of the output of No. 1. The timer 45 is reset by the pulse signal Pu, and thereafter, the timer 45 measures time. DOWN
The edge detection circuit 44 detects a fall of the output of the comparator 42 and outputs a pulse signal Pd. Based on the pulse signal Pd, the latch 46 outputs the output of the timer 45,
That is, the time from when the output of the comparator 42 rises to when it falls is latched, and the latched data is output to the bus line 15. The voice input flag 47 is set by the pulse signal Pd.

On the other hand, the voice recognition circuit 49 determines from the output signal of the microphone 9 whether the voice uttered by the user by the voice recognition technique is “do, re, mi, fa, so, la, shi”. The detection is performed, and the detection result is output to the latch 50. The latch 50 latches the output of the speech recognition circuit 49 at the timing of the above-described pulse signal Pd, and outputs the latched data to the bus line 15. Pitch extraction circuit 51
Is a circuit for detecting the pitch (frequency) of the output signal of the microphone 9. As described above, since the scale is detected by the speech recognition circuit 49, the pitch detection does not need to be so precise. For example, the time between the zero-cross points of the signal may be measured and converted into the pitch. The output of the pitch extraction circuit 51 is supplied to a latch 52. Latch 5
2 latches the output of the pitch extraction circuit 51 at the timing of the above-described pulse signal Pd, and outputs the latched data to the bus line 15.

As is apparent from the above-described configuration, the output of the latch 46 indicates the tone length, and the output of the latch 50 indicates the musical scale. The output of the latch 52 becomes data for octave detection. An interface is inserted between the latch 46, the audio input flag 47, the latch 50, the latch 52 and the bus line 15 in FIG. 3, but is not shown.

Next, the operation of the circuit shown in FIGS. 1 to 3 when the user sets the incoming melody to the portable telephone will be described. First, the user performs a predetermined key operation of “input melody / rhythm” using the operation unit 4.
When a key operation for rhythm input is performed, the CPU 1 detects this and performs the processing shown in the flowchart of FIG. That is, first, the process proceeds to step Sa1, and it is determined whether or not the MIC hitting sound flag 33 (FIG. 2) is turned on. If it is not turned on, step Sa
The determination of 1 is repeated.

Here, the user inputs a rhythm by hitting the microphone 9 "ton, ton ...". When the user performs the first blow, the MIC blow sound flag 33 is turned on at the time of the rise. As a result, the determination result of step Sa1 becomes “YE
S ", and proceeds to step Sa2. In step Sa2, the CPU 1 outputs a rhythm sound drive signal to the controller 14. The controller 14 outputs this signal to the rhythm sound source 2
7 is output. The rhythm sound source 27 receives this drive signal,
A digital rhythm sound signal is formed and output to the DAC. The DAC 28 converts this digital rhythm sound signal into an analog rhythm sound signal and outputs the signal to the speaker 12 via the mixer 21. As a result, the rhythm sound is output from the speaker 12.
Arising from

Next, the processing of the CPU 1 proceeds to step Sa3, where the MIC striking sound flag 33 is reset.
In step Sa4, the internal timer is reset. Thereafter, time measurement is performed by the internal timer. Next, when the process proceeds to step Sa5, the MIC impact sound flag 33
Is turned on again. If the result of this determination is "NO", the flow proceeds to step Sa6. In step Sa6, it is determined whether a preset rhythm end button on the operation unit 4 has been turned on. If the result of this determination is "NO", the flow returns to step Sa5, and thereafter, the determinations in steps Sa5 and Sa6 are repeated.

Next, the user inputs the microphone 9
When the second blow is performed, the MIC blow sound flag 3
3 turns on. As a result, the determination result of step Sa5 becomes "YES", and the process proceeds to step Sa7. In step Sa7, a rhythm sound drive signal is output to the controller 14. Thereby, a rhythm sound is generated from the speaker 12. Next, in step Sa8, the elapsed time indicated by the output data of the timer is written to the rhythm data area set in the RAM 3. That is, the time from the first hit to the second hit by the user is written in the rhythm data area. Next, step S
When proceeding to a9, the MIC striking sound flag 33 is reset, and then proceeding to step Sa4, the timer is reset.

Thereafter, the microphone 9 is again operated by the user.
The determinations in steps Sa5 and Sa6 are repeated until hitting is performed. Each time the user hits the microphone 9, the processing of steps Sa7 to Sa9 is repeated. The user inputs a rhythm by striking the microphone 9, and finally turns on a predetermined rhythm end button on the operation unit 4. When the button is turned on, the result of determination in step Sa6 is “Y
ES ”, and proceeds to step Sa10. Step Sa
At 10, the elapsed time indicated by the output of the timer is written to the rhythm data area of the RAM 3, and the process ends. In this embodiment, since the rhythm data can be input by hitting the microphone 9, the rhythm data can be easily input. Further, when rhythm data is input by hitting the microphone 9, a default rhythm sound is generated in conjunction therewith, so that the mobile phone can be used as a simple percussion instrument.

When the rhythm input described above is completed, next,
The user performs melody input according to the input rhythm. That is, the user performs a key operation of a predetermined melody input of “incoming melody / melody input” using the operation unit 4. When this key operation is performed, CP
U1 detects this, and thereafter sequentially outputs a rhythm-on drive signal to the controller 14 according to the elapsed time data in the rhythm data area of the RAM 3. Accordingly, a rhythm sound based on the rhythm input by the user in the above-described process is repeatedly generated from the speaker 12. The user
A melody is input to the microphone 9 in accordance with the rhythm sound. Hereinafter, the processing of the CPU 1 in this case will be described with reference to FIG.

Now, when the user enters the first musical scale ("do ~
Is generated, the sound input flag 47 of the data detection circuit 26 at the end of the sound generation (FIG. 3).
Is turned on. When the voice input flag 47 is turned on, the determination result of step Sb1 shown in FIG.
And the process proceeds to step Sb2. In step Sb2, the voice input flag 47 is reset. Next, step S
When proceeding to b3, the tone length data in the latch 46 (FIG. 3) is changed to R
Write to a preset melody data area of AM3. Next, the process proceeds to step Sb4, where the scale data in the latch 50 is written to the melody data area, and then the process proceeds to step Sb5, where the octave data in the latch 52 is written to the melody data area. Next, proceeding to step Sb6, the above-mentioned pitch data, scale data,
Create score data from octave data.

Thereafter, each time the voice input flag 47 is turned on, the above-described processing is performed, and thereby the musical score data is created. Then, when the user presses the melody end button set on the operation unit 4, the musical score data created in the above process is output to the controller 14. The controller 14 sequentially writes the musical score data into the musical tone memory 16. Thereafter, when there is an incoming call, the controller 14 reads out the musical score data in the musical tone memory 16 and
8 is output. As a result, an incoming melody created by the user is generated from the speaker 12. The musical score data created in the above process can be used not only as a ringing melody but also as a holding melody or BGM during a conversation.

[0027]

As described above, according to the present invention, the converting means for converting a sound into an electric sound signal, the duration detecting means for detecting the duration of the sound signal output from the converting means, Voice recognition means for recognizing an original voice from a signal, pitch detection means for detecting a pitch of a voice signal, and music score data for forming music score data based on respective outputs of a duration detection means, a voice recognition means, and a pitch detection means The provision of the forming means provides an effect that the user of the mobile phone can easily create the score data of the ringtone melody.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a rhythm timing detection circuit 25 according to the first embodiment.

FIG. 3 is a block diagram illustrating a configuration of a data detection circuit 26 according to the first embodiment.

FIG. 4 is a flowchart for explaining a process of creating rhythm data in the embodiment.

FIG. 5 is a flowchart for explaining a score data creation process in the embodiment.

[Explanation of symbols]

1 CPU, 2 ROM, 3 RAM, 4 operating unit, 1
DESCRIPTION OF SYMBOLS 1 ... Ring tone generator, 14 ... Controller, 16 ... Music memory, 18 ... Melody sound source, 25 ... Rhythm timing detection circuit, 26 ... Data detection circuit, 27 ... Rhythm sound source

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04M 1/00 H04B 7/26 109L F-term (Reference) 5D015 AA06 HH01 5D378 KK02 LA71 MM13 MM14 MM16 MM27 MM34 MM47 MM58 MM62 MM67 SE16 5K027 AA11 FF03 FF28 HH20 5K067 AA34 BB04 DD23 EE02 FF13 FF25 GG11 HH21 9A001 CZ05 HH16 HH34 KK62

Claims (8)

[Claims] Receiving a call via a communication means, or
A mobile phone that generates music based on musical score data in a storage unit when a user instructs reproduction; a conversion unit that converts audio into an electric audio signal; and detects a duration of the audio signal output from the conversion unit. Duration detecting means, voice recognition means for recognizing original voice from the voice signal, and score data forming means for forming score data based on respective outputs of the duration detecting means and voice recognition means. A mobile phone characterized by: 2. Pitch detecting means for detecting a pitch of the voice signal, wherein the musical score data detecting means forms musical score data based on respective outputs of the duration detecting means, the voice recognizing means and the pitch detecting means. The mobile phone according to claim 1, wherein 3. The apparatus according to claim 1, wherein the duration detecting means comprises a detecting / shaping means for detecting / shaping the audio signal, and a measuring means for measuring a time during which the output of the detecting / shaping means is at or above a certain level. Claim 1 or Claim 2
A mobile phone according to claim 1. 4. The mobile phone according to claim 1, wherein said voice recognition means detects seven words “do-shi”. 5. The mobile phone according to claim 2, wherein said pitch detecting means detects a pitch based on a time between zero-cross points of said audio signal. 6. A converting means for converting a user's blow into an electric signal, a measuring means for measuring a time interval of the electric signal output from the converting means, a storing means for storing an output of the measuring means, And a rhythm sound generating means for generating a rhythm sound based on data in the storage means. 7. A mobile phone, wherein the mobile phone according to claim 1 is provided with the function of the mobile phone according to claim 6. 8. Receive a call via the communication means, or
When a user instructs reproduction, a mobile phone that generates music on the basis of musical score data in the storage means converts voice into an electrical voice signal, recognizes the original voice from the voice signal, and simultaneously holds the duration of the voice signal. A musical score data forming method for a mobile phone, comprising detecting musical score and pitch and forming musical score data based on the recognition result and the detection result.