JP2001265338A - Mobile phone and input sound identifying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily input a desired melody to a portable telephone set capable of inputting thereto a melody outputted at the time of informing an arrival. SOLUTION: This is a portable telephone set 1 which specifies an inputted melody by specifying sound to be inputted to a microphone 20 and outputs it when information arrives; converts speech inputted to the microphone 20 into digital data by an A-D converter 18; recognizes a pitch name corresponding to the inputted speech based on the digital data; sets a flag to an ON state when the speech inputted to the microphone 20 is voiceless; and further decides an octave including the inputted sound pitch. Then, the portable telephone system identifies the input sound based on the judged octave, the pitch name, and the state of the flag.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a portable telephone capable of inputting a melody for notifying an incoming call, and a method for specifying an input sound in the portable telephone.

[0002]

2. Description of the Related Art Conventionally, there has been known a telephone device capable of switching a ring tone output when an incoming call is notified. For example, Japanese Patent Application Laid-Open No. Hei 10-233822 discloses a telephone device that switches a ringtone according to the telephone number of a caller.
This telephone device uses a caller ID notification service,
Switching between a plurality of ringtones prepared in advance.

In recent years, with the spread of portable telephones, telephones capable of switching a large number of ring tones have come to be used. This is to prevent the user from knowing whether his / her telephone is ringing or another person's telephone is ringing when the portable telephone rings. In order to make the ringtone more versatile, a telephone device that allows a user to set a desired melody as the ringtone has come to be used.

[0004]

However, when a melody of a ring tone is created, a tempo, a pitch, a duration, and the like must be set, and a complicated input operation is required. For this reason, a method of creating a ring tone more easily has been devised.

For example, Japanese Patent Application Laid-Open No. H11-154993 discloses a portable wireless device that displays a keyboard on an LCD provided with a touch panel and determines a pressed keyboard and a time when the keyboard is pressed. Have been. In this device, the input operation of the ring tone is relatively simple, but the keyboard must be operated in the correct order, and the time for pressing the keyboard must be kept accurate. For this reason, there is a problem that it is difficult to input a melody as expected.

Japanese Patent Application Laid-Open No. H11-220518 discloses a mobile phone that analyzes the frequency of voice input to a microphone, determines the pitch of the voice, and uses the frequency as a melody of a ringtone. With this telephone, the melody sung into the microphone becomes the ringtone. However, there is a problem that it is difficult for a person who can sing a melody with an accurate pitch to input a melody as expected.

An object of the present invention is to make it possible to easily input a desired melody in a portable telephone capable of inputting a melody output when an incoming call is notified.

[0008]

According to a first aspect of the present invention, there is provided a portable telephone (1) for outputting a melody when an incoming call is announced, in which the input sound is acquired at predetermined intervals. Acquisition means (for example, the A / D converter 18 shown in FIG. 1) and note name recognition means (for example, the steps in FIG. A CPU 11 that performs the processing shown in S7) and a sound range determination unit (for example, a sound range determination unit that determines a sound range that includes the input sound among a plurality of preset sound ranges based on the frequency of the input sound acquired by the acquisition unit) Performs the processing shown in step S10 of FIG.
U11) and sound specifying means for specifying the input sound based on the pitch recognized by the pitch recognizing means and the range determined by the range determining means (for example, the processing shown in step S11 in FIG. 2 is performed). And a CPU 11) for performing the operation.

[0009] Here, the pitch name includes, for example, the Italian voice name "Dremi Faso Rashi", but it may be the Japanese voice name "Irohanihohet" or other pitch names. The plurality of preset sound ranges include, for example, those set in octave units. As a sound range determining means, for example, a sound range determining device based on an international altitude set internationally or a frequency based on a standard altitude which is globally standardized may be used. Examples of the sound specifying unit include a unit that specifies an input sound as a sound that constitutes a general seven-scale, but may be based on a twelve-scale, or may be based on another scale. There may be.

According to the first aspect of the present invention, in a portable telephone which outputs a melody upon notification of an incoming call, an input sound is acquired at predetermined intervals by an acquisition means, and the acquired input sound is acquired by a pitch name recognizing means. By recognizing the pitch name by analyzing the word indicated by
Based on the frequency of the acquired input sound, a sound range including the input sound is determined among a plurality of preset sound ranges, and a sound name and a sound range determination unit recognized by the sound name recognition unit by the sound identification unit. The input sound is specified based on the sound range determined by (1).

Therefore, when a sound is input, the sound is specified based on the note name corresponding to the word indicated by the input sound and the range in which the input sound is included, so that the frequency of the input sound is analyzed in detail. You can specify the sound without having to do it. For this reason, the input sound can be efficiently specified, and the required hardware performance is low, so that it can be realized at low cost. This allows
For example, in the portable telephone of the present invention, when creating a melody at the time of notification of an incoming call based on the input sound, each sound constituting the melody can be easily specified.

When inputting the user's voice, the user only has to pronounce the pitch name at the pitch of the desired pitch. In this case, the note name of the input sound and the range to which the input sound belongs are specified. That is, the pitch of the user's voice need not deviate from an accurate range, for example, may be one or more octaves. For this reason, a desired sound can be input without uttering at an accurate pitch, so that the burden on the user can be reduced and the sound can be input easily.

According to a second aspect of the present invention, in the portable telephone according to the first aspect, the portable telephone comprises a plurality of input sounds continuously acquired by the acquisition means based on a result specified by the sound identification means. Melody specifying means for specifying a melody (for example, C that performs the process shown in step S11 of FIG. 2)
PU11).

According to a second aspect of the present invention, the melody specifying means specifies a melody composed of a plurality of input sounds continuously obtained by the obtaining means on the basis of the specification result by the sound specifying means.

[0015] Therefore, it is possible to provide a portable telephone capable of efficiently specifying the input sound and specifying the melody. When inputting a melody to the portable telephone, the user may speak a note name in accordance with the melody of wear.
Further, when the user utters, it is only necessary to maintain accuracy such that the user does not deviate from the sound range, that is, does not deviate more than one octave. Therefore, it is possible to provide a portable telephone capable of easily inputting a desired melody.

The third aspect of the present invention is the first or second aspect.
In the portable telephone described in the above, a silence detecting means (for example, the CPU 1 which performs the processing shown in step S4 of FIG.
It is characterized by further comprising 1).

According to the third aspect of the present invention, the silence detecting means detects whether or not the input sound acquired by the acquiring means is silence.

Accordingly, since a state in which the input sound is silent can be detected, for example, a state corresponding to a rest when a melody is input can be detected. Therefore, the input melody can be specified accurately. In addition, when the input sound is silent, there is no possibility that the sound name cannot be recognized and the processing is not mistaken.

According to a fourth aspect of the present invention, in the portable telephone according to any one of the first to third aspects, the pitch name recognizing means is not a word indicating the pitch name of the input sound obtained by the obtaining means. In this case, the input sound is recognized as a part of the input sound whose tone name was most recently recognized.

According to the fourth aspect of the present invention, when the input sound acquired by the acquiring means is not a word indicating a sound name, the sound name recognizing means recognizes the input sound as the most recent sound name. Recognize as part of the input sound.

Therefore, even when a long sound exceeding the period of acquiring the input sound is input by the acquisition means, it can be recognized as a long sound. Therefore, the long sound can be recognized without being divided into a plurality of sounds, and the length of the input sound can also be accurately specified.

When humans pronounce, consonants are generally pronounced only at the first moment. When a long sound is uttered, only a vowel is uttered halfway. For example, when a long sound uttered as "Do" is obtained by the obtaining means, a sound "Do" is obtained first, and then a sound "O" is obtained. If this is recognized as a different sound such as "do" and "o", a long sound cannot be input. ADVANTAGE OF THE INVENTION According to the portable telephone of this invention, since the input sound whose pitch name cannot be recognized is recognized as a part of the previously recognized sound, that is, the latter half of the long sound, the long sound can be input reliably.

According to a fifth aspect of the present invention, there is provided the portable telephone according to any one of the first to fourth aspects, further comprising a signal tone output means for outputting a signal tone at a predetermined cycle.

According to a fifth aspect of the present invention, a signal sound is output at a predetermined cycle by the signal sound output means.

Therefore, the user can utter a signal sound as a guide and can input the sound more easily. In other words, when a signal tone is output at a specified tempo, a metronome-like function is performed, so that the user can speak in accordance with a desired tempo. Therefore, sounds and melodies can be input easily and accurately.

According to a sixth aspect of the present invention, there is provided an input sound specifying method for specifying an input sound, wherein the step of obtaining the input sound at a predetermined cycle, and the step of analyzing a word indicated by the obtained input sound. A step of recognizing a pitch name, and a step of determining a range in which the input sound is included in a plurality of preset ranges based on the frequency of the obtained input sound, and Specifying an input sound based on the determined sound range.

According to the sixth aspect of the present invention, when a sound is input, the sound is specified based on a note name corresponding to a word indicated by the input sound and a range including the input sound. Sound can be specified without analyzing the frequency of the input sound in detail. For this reason, the input sound can be specified efficiently, the required hardware performance can be low, and the cost can be reduced. Thus, for example, when a melody is created based on an input sound, each sound constituting the melody can be easily specified. In addition, when inputting a human voice, a note name may be pronounced with a sound having a desired pitch. In this case, since the note name of the input sound and the range to which the input sound belongs are specified, the input voice need only be accurate to the extent that it does not deviate from the range, for example, not to shift by more than one octave. You can input sound.

[0028]

Embodiments of the present invention will be described below in detail with reference to the drawings.

[First Embodiment] First, the configuration will be described. FIG. 1 is a block diagram showing an internal circuit configuration of the mobile phone 1 according to the first embodiment of the present invention. As shown in FIG. 1, the mobile phone 1 has a CPU (Centra
l Processing Unit) 11, ROM (Read Only Memor)
y) 12, RAM (Random Access Memory) 13, storage unit 14, input unit 15, display unit 16, power supply unit 17, A / D
Converter 18, audio processing unit 19, microphone 20, signal sound generation unit 21, speaker 22, communication unit 23, antenna 2
4 and a timer 25, and each unit is connected by a bus 26. A buffer 18a is provided between the A / D converter 18 and the bus 26.

The CPU 11 reads and executes various system programs stored in the ROM 12 to drive and control each unit. In addition, the CPU 11 reads and executes various application programs stored in the storage unit 14 according to an input operation on the input unit 15 to realize various functions of the mobile phone 1.

More specifically, when the telephone number of the communication destination is input from the numeric keys provided in the input unit 15 and an operation for instructing the start of a call is performed, the communication unit 23 sends a signal to a base station (not shown). An outgoing signal is transmitted to establish a wireless communication line with the base station, enabling a call to the input communication destination.

When receiving an incoming signal transmitted from the base station by the communication unit 23, the CPU 11
Then, preset ringtone melody data is read from the ringtone melody data stored in No. 4 and a predetermined ringtone is output from the speaker 22.

Further, the CPU 11 executes a ring tone input process (FIG. 2), which will be described later, in response to an input operation on the input unit 15, and the signal tone generation unit 21 outputs a signal tone in accordance with the set tempo to the speaker 22. , And the voice input from the microphone 20 is identified. Digital data obtained by A / D conversion of the sound from the microphone 20 by the A / D converter 18 is read out from the buffer 18a and analyzed, and if there is no sound, the flag is turned on, and if there is an input sound, the flag is turned off. To Subsequently, the mobile phone 1 analyzes the voice input from the microphone 20 and recognizes the pronounced note name, and stores the recognition result together with the digital data of the voice input from the microphone 20 in the work area of the RAM 13. Remember temporarily.

After the sound input from the microphone 20 is completed, the CPU 11 stops outputting the signal sound from the speaker 22. Then, the sound name recognition result stored in the RAM 13 is read, and the digital data stored in the RAM 13 is analyzed to determine the octave of the input sound. And
Based on the octave determination result, the note name recognition result, and the state of the flag, ring tone melody data composed of notes and rests is created and stored in the storage unit 14.

In addition, the CPU 11 executes editing processing such as addition / deletion of telephone directory data in which the number of the communication partner is set, etc., and calling processing of designated data, etc., in accordance with an input operation on the input unit 15. I do.

In the present embodiment, the portable telephone 1
Performs processing based on the general seven-tone scale / Italian sound name "Dremi Fasorashi".

The ROM 12 is a flash memory or EEP
ROM, EPROM and other semiconductor storage elements,
A basic control program for the mobile phone 1 and data relating to the program are stored.

The RAM 13 forms a work area for temporarily storing various programs executed by the CPU 11 and data relating to these programs.

The storage unit 14 includes a storage medium such as a rewritable semiconductor storage element such as a flash memory. In the storage medium, various application programs of the portable telephone 1 executed by the CPU 11 and these programs are stored. Is stored. For example, the storage unit 14 stores a telephone number of a communication destination that has communicated in the past, a telephone number that has been received in the past, and telephone directory data in which a plurality of names and names and a telephone number corresponding to each name are set. It is memorized. Further, the storage unit 14 stores setting data in which various setting contents regarding the operation of the mobile phone 1 are recorded, such as a ringtone melody output when an incoming call is notified. further,
The storage unit 14 stores a plurality of ring tone melody data created in advance and ring tone melody data generated in a ring tone input process described later.

The input unit 15 includes character keys and numeric keys,
It has various keys associated with various functions such as call start / end, telephone directory editing, etc., and outputs an operation signal corresponding to the operated key to the CPU 11.

The display unit 16 is provided with an LCD (liquid crystal display screen), and displays the input contents of the input unit 15, the contents of the telephone directory data, messages related to the processing being executed, and the like. The display unit 16 includes a backlight device (not shown) on the back side of the liquid crystal display panel, and illuminates the liquid crystal display screen when operating the input unit 15, calling, receiving a call, and the like.

The power supply 17 incorporates a rechargeable battery (not shown) such as a lithium ion battery or a nickel hydride battery, and supplies power from the battery (not shown) to each section of the portable telephone 1. .

The A / D converter 18 samples the audio signal input from the microphone 20 at a predetermined frequency and converts it into digital data, and converts the obtained digital data into digital data.
Output to the buffer 18a as needed. The buffer 18a incorporates a storage medium such as a semiconductor storage element, temporarily holds digital data generated by the A / D converter 18, and stores the digital data in accordance with a read request from the CPU 11.
Output to

The audio processing unit 19 includes an audio codec, an amplifier, and the like.
The audio signal input from 0 is encoded and output to the communication unit 23, and the data input from the communication unit 23 is decoded to generate an audio signal and the speaker 22 outputs audio. Note that the audio processing unit 19 may be configured to include a headphone terminal to which various headphones can be connected.

The microphone 20 obtains a voice uttered by the user at the time of a call or at the time of a ringtone input process described later, and outputs a voice signal to the A / D converter 18 and the voice processing unit 19. The speaker 22 outputs sound according to the sound signals input from the sound processing unit 19 and the signal sound generation unit 21. Note that the microphone 20 includes a filter and the like for removing noise.

Under the control of the CPU 11, the signal sound generating section 21 outputs a sound signal for outputting a signal sound to the speaker 22 at predetermined time intervals, thereby outputting a signal sound at a set tempo. Note that if the signal sound output from the speaker 22 by the sound signal from the signal sound generation unit 21 can be removed by the filter provided in the speaker 22, the A / D converter 18 and the CPU 11
There is no risk of affecting the operation of.

The communication unit 23 includes an antenna 24, and transmits and receives radio signals to and from a base station (not shown). Specifically, when a radio signal indicating an incoming call is received by the antenna 24, the signal indicating the incoming call is transmitted to the CPU 1.
1 to execute an incoming notification operation for the user,
Further, when the input unit 15 is operated by the user and a call transmission instruction is input from the CPU 11, a base station (not shown) is provided.
Connect a wireless communication line between The communication unit 23
Transmits a position signal indicating the current position of the mobile phone 1 to the base station at predetermined time intervals.

The timer 25 includes an oscillator and the like.
The timer is executed in response to an instruction input from 1 and a timing signal is output each time a predetermined time elapses.

Next, the operation of this embodiment will be described. FIG. 2 is a flowchart illustrating a ringtone input process performed by the mobile phone 1.

This ring tone input process is a process for generating ring tone melody data based on the melody sung by the user. The user may sing a melody to be input as a ringtone. However, instead of singing with lyrics, the pitch is pronounced in accordance with the pitch of the desired melody. That is,
Instead of the lyrics, the melody will be sung with the note name of "Doremi Faso Rashi".

In the ring tone input processing, first, the tempo set by operating the input unit 15 is stored in the RAM 13 (step S1), and the CPU 11 generates a sound signal by the signal sound generating unit 21 according to the set tempo. To output a signal sound from the speaker 22 (step S
2). For example, in step S1, the tempo is 120 bpm
If (beat per minute) is set, step S
In step 2, a signal tone is output at a cycle of 120 times per minute.

The signal sound output from the speaker 22 in step S2 is thereafter output according to the set tempo until the processing in step S9 is performed. Therefore, the user only has to sing the melody in accordance with the tempo of the signal sound from the speaker 22.

In step S3, the CPU 11 sets the input unit 1
It is determined whether or not there is a key operation for instructing the end of the ringtone input in 5.

If the input of the ring tone is continued, that is, if there is no key operation indicating the end of the input of the ring tone, C
The PU 11 proceeds to step S4, and determines the presence or absence of an input sound based on the digital data generated by the A / D converter 18 and held in the buffer 18a. In step S5, the flag is switched based on the determination result in step S4. That is, if there is no input sound in step S4, the flag is turned on in step S5, and if there is an input sound, the flag is turned off.

Then, in step S6, step S4
The branching process is performed based on the determination result in. If there is no input sound, the process returns to step S3, and if there is an input sound, the process proceeds to step S7.

In step S7, the A / D converter 18
On the basis of the digital data input by the user, the name of the sound acquired by the microphone 20, that is, the word pronounced by the user is recognized. The CPU 11 outputs the voice of the user acquired by the microphone 20 as “do, re, mi, fa, so, la,
To determine whether it falls under any of the following items. here,
The sound acquired by the microphone 20 is “de, re, mi,
Fa, Soo, La, Si "
The user determines that the previously pronounced sound is extended and uttered.

In general, if the sound "do" is lengthened and pronounced "do", even if the first sound is "do",
The sound changes to “O” midway. Similarly, if "L" is prolonged and pronounced, the sound changes to "E" midway. In other words, "do, les, mi, fa, so, la,
When “S” is input as a long sound, the sound acquired by the microphone 20 is “O, E, I, A, O, A,
"" For this reason, if the input voice does not correspond to any of “de, re, mi, fa, s, la, si”, it can be determined that the previously uttered sound is still uttered as a long sound.

If a sound corresponding to any of "do, rem, mi, fa, s, la, si" is recognized in step S7, the CPU 11 utters the recognized sound as a new sound. Judge that

Then, in step S8, step S7
, And the digital data input from the A / D converter 18 are temporarily stored in the RAM 13, and the process proceeds to step S9. In step S9, the digital data held in the buffer 18a is stored in the RAM 1
3 and return to step S3. Step S3
A series of processing cycles from step S9 to
The processing is performed in accordance with the sampling frequency of the D converter 18 and a frequency that is 1/2 or 1/4 of the sampling frequency. After the end of the process in step S9, the RAM 13 stores the digital data generated by the A / D converter 18, the note name recognition result in step S8, and the state of the flag switched in step S5.

If it is determined in step S3 that the input of the ring tone has been terminated by operating the input unit 15,
Move to step S10.

In step S10, the CPU 11 controls the signal sound generating section 21 to stop the signal sound being output from the speaker 22. Then, in step S11, the CPU 1
1 analyzes the frequency of the sound acquired by the microphone 20 based on the digital data stored in step S8, and determines the octave. The frequency serving as a reference for determining an octave in step S11 is, for example, an international altitude set internationally, or a frequency according to a standard altitude that is standard worldwide.

For example, in the portable telephone 1, sounds can be input and output in a range of three octaves when an incoming call is notified. In this case, in step S11, the RAM 1
Based on the digital data stored in No. 3, it is determined which octave of the three octaves the sound acquired by microphone 20 belongs to.

Subsequently, in step S12, the CPU 11
Is the recognition result of the pitch name stored in the RAM 13 in step S8, the octave determination result in step S11,
Based on the tempo set in step S1 and the state of the flag switched in step S5, melody data for alerting the incoming call is generated and stored in the storage unit 14. In addition,
After the processing in step S12, a voice may be output based on the melody data generated in step S12, and the generated melody data may be stored in the storage unit 14 after a confirmation operation by the user. In this case, the input unit 1
When the input indicating that the melody data generated by the operation of No. 5 is impossible is performed, the processing from step S1 may be executed again, or the input unit 1
The melody data may be modified by the operation 5.

FIG. 3 is a timing chart showing the state of the ring tone input processing shown in FIG.
(B) shows the state of the flag switched at step S5, and (c) shows the input sound acquired at step S5.
7 shows the pitch name recognition result, and (d) shows the octave determination result in step S10.

In the example shown in FIG. 3, the portable telephone 1 can input and output a melody at the time of notification of an incoming call within a range of three octaves.
It is assumed that the processing is performed based on the seven-tone scale of "S". The timing charts shown in (b) and (c) are as follows.
4 is a chart obtained by arranging data stored in a RAM 13 in a time series.

FIG. 9A is a timing chart of the sound input from the microphone 20. The pitch of the chart indicates the pitch of the sound, and the character at each time T indicates a word uttered by the user. For example, at time T2, the user pronounces “「 ”.

As the input sound from the microphone 20 shown in FIG. 3A, the sound of "do" input at time T1 continues until time T2. Next, “レ” that lasts from time T2 to time T3, “、” that is one octave up from time T3 to time T4, and “レ” that lasts from time T4 to time T5 are input. There is no sound between time T5 and time T6,
"Mi" is input from time T6 to time T7, and "R" is input from time T7 to time T8, and no sound is output from time T8 to time T9. Further, "D" is input between time T9 and time T10, and at time T10, a key operation for terminating the input is performed.

Here, the state of the flag shown in (b) in the figure is "ON" from time T5 to time T6 and from time T9 to time T10, and "OFF" in other parts. "It has become.

The note name recognition result shown in FIG.
It is “do” from time T1 to time T2 and “re” from time T2 to time T3. Also, at time T3
From time T4 to time T4.
The number between 5 is "re".

Since the input sound uttered at the time T1 continues until the time T2, the sound is "do" only at the moment of the time T1, and thereafter the sound is "o" until the time T2. In the process of step S7 (FIG. 2), "do" is recognized at time T1, but thereafter, "o" until time T2.
Is not considered a new sound. However, this period is not silent. Therefore, until the time immediately before the time T2, it is determined that “the previous sound is continuing”,
It is recognized that the sound "do" continues from time T1 to time T2.

Here, when "RE" is input at the moment of time T2, it is determined in step S7 that a new sound "RE" has been input.

That is, in step S7, "do,
If any of "mi, fa, so, la, shi" is input, it is recognized as a new sound. Also, not silence, and
If the seven sounds are not recognized, it is considered that the preceding sound is continuing. Thereby, long sounds can be recognized with certainty.

Similarly, the pitch name recognition result shown in (c) in the figure is “レ” from time T2 to time T3,
It is “do” from 3 to time T4, and “re” from time T4 to time T5. Note that the note name recognition result does not include information about the octave.

The result of the octave determination shown by (d) in the figure is “1” between time T1 and time T3,
From time T5 to "2". The value is “1” from time T6 to time T7, “2” from time T7 to time T8, and “1” from time T9 to time T10.
In the octave determination in step S11, since only the octave of the input sound is determined, no distinction is made between time T1 and time T2 and between time T2 and time T3.
Thus, the data amount can be small.

Accordingly, in FIG. 3, the flag shown in FIG.
Based on the pitch name determination result shown in (c) and the octave determination result shown in (d), the pitch and the length of the input sound,
Silence time is obtained. Then, step S1 (FIG. 2)
By converting the tempo set in the above, the pitch and length of the input sound, and the silence time into notes and rests, the score of the ringtone melody can be obtained. Also, ringtone melody data for outputting a ringtone melody can be generated based on the score.

As described above, according to the portable telephone 1 of the first embodiment of the present invention, the sound obtained by the microphone 20 is converted into digital data by the A / D converter 18 and the obtained digital data , The uttered word, ie, the pronounced note name, is recognized. Further, the frequency of the voice uttered from the digital data is analyzed to determine the octave to which the pronounced sound belongs. Also,
While the sound acquired by the microphone 20 is in a silent state, the flag is turned on. Then, ring tone melody data is generated based on the note name recognition result, the result of the octave determination, the state of the flag, and the set tempo.

Therefore, the process of recognizing the uttered word,
Since the process of determining the octave by roughly analyzing the frequency of the uttered sound is performed, the user only has to utter the melody with such accuracy that the octave does not shift. That is, the melody to be input does not have to be uttered perfectly. For this reason, compared with the case where the frequency of the uttered sound is analyzed in detail and the pitch of the sound is determined, the load on the user can be reduced and the melody can be easily input.

Further, since the flag is turned on while the input sound from the microphone 20 is silent, the silent time can be determined from the state of the flag. For this reason, ringtone melody data reflecting the pitch of each sound constituting the melody and the silence period can be generated by relatively simple processing.

As a result, required hardware performance is low, and the portable telephone 1 can be realized at low cost.

If the note name corresponding to the word of the input sound cannot be recognized, it is recognized that the previously recognized sound is continuing, so the input long sound is divided and recognized as a plurality of sounds. Nothing. For this reason, not only the pitch but also the length of the input sound can be accurately specified.

Further, in the portable telephone 1, step S
Speaker 2 according to the tempo set in 1 (FIG. 2)
2 outputs a signal sound, and the user utters a melody in accordance with the signal sound. Therefore, the burden on the user can be reduced, and the melody can be input more easily.

In the above-described first embodiment, the processing is performed based on the seven-tone scale represented by the Italian sound name "Dremi Faso Rashi". However, the present invention is not limited to this. Instead of, for example, processing may be performed based on the Japanese phonetic name "Irohanihohet",
Alternatively, the processing may be performed based on another scale.

In the first embodiment,
Although it is configured to recognize the note name and determine the octave, for example, for sounds that belong to different octaves and have close pitches, such as the sound of “shi” and the sound of “do” in the octave above it, The correction may be performed. That is, with respect to the sounds of “la” and “shi”, the frequency component of the digital data from the A / D converter 18 is analyzed to determine whether or not the frequency is higher than the octave boundary frequency. If it is higher, it may be specified as "la" or "shi" one octave lower.

Further, the range to be determined in step S11 of FIG. 2 is not limited to three octaves, and it goes without saying that the appearance of the portable telephone 1 can be arbitrarily changed.

[Second Embodiment] Next, the operation of the portable telephone 1 according to a second embodiment of the present invention will be described. Note that the mobile phone 1 according to the second embodiment has the same configuration as the mobile phone 1 according to the first embodiment, and illustration and description of the configuration are omitted.

FIG. 4 is a flowchart showing a ring tone input process executed by the portable telephone 1. This ring tone input processing is processing for generating ring tone melody data based on the melody sung by the user, as in the first embodiment. The user may sing a melody to be input as a ringtone. However, instead of singing with lyrics, the pitch is pronounced in accordance with the pitch of the desired melody. In other words, instead of the lyrics, the melody is sung with the note name of "Doremi Faso Rashi".

First, the tempo set by operating the input unit 15 is stored in the RAM 13 (step S21), and the C
The PU 11 performs the signal sound generation unit 2 according to the set tempo.
1 to generate an audio signal, and output a signal sound from the speaker 22 (step S22). This step S2
The signal sound output from the speaker 22 in step 2 is thereafter output according to the set tempo until step S30.

In step S23, CPU 11 determines whether or not there is a key operation on input section 15 to instruct the end of ringtone input. Here, if the input of the ring tone is continued, that is, if there is no key operation indicating the end of the input of the ring tone, the CPU 11 shifts to step S24, and the A / A
Based on the digital data generated by the D converter 18 and held in the buffer 18a, the presence or absence of an input sound is determined. In step S25, the flag is switched based on the determination result in step S24. That is, if there is no input sound in step S24, the flag is turned on in step S25, and if there is an input sound, the flag is turned off.
Change to F.

Then, in step S26, step S
The branching process is performed based on the determination result in 24. If there is no input sound, the process returns to step S23. If there is an input sound, the process proceeds to step S27.

In step S27, A / D converter 1
Microphone 20 based on the digital data input from
Of the voice acquired by the user, that is, the word pronounced by the user. The CPU 11 outputs the voice of the user acquired by the microphone 20 as “do, re, mi, fa, so,
To determine whether it falls under any of the following categories. Here, the voice acquired by the microphone 20 is the above “de, re,
If the user does not correspond to any of "mi, fa, so, la, shi", the user determines that the previously pronounced sound is extended and uttered.

In step S27, "do, re, mi,
When a sound corresponding to any one of “FA, SO, LA, SH” is recognized, the CPU 11 determines that the sound of the recognition result is uttered as a new sound.

Then, in step S28, the CPU 11
Analyzes the frequency of the sound acquired by the microphone 20 based on the digital data held in the buffer 18a, and determines the octave. The frequency serving as a reference for determining the octave in step S28 is, for example, an international altitude set internationally, or a frequency according to a standard altitude that is globally standard.

For example, in the portable telephone 1, sounds can be input and output in a range of three octaves when an incoming call is notified. In this case, in step S28, it is determined which octave of the three octaves the sound acquired by the microphone 20 belongs to.

Subsequently, in step S29, step S
The result of the note name recognition in step S27 and the result of the octave determination in step S28 are stored in the RAM 13, and the process returns to step S23. Steps S23 to S23
A series of 29 processing cycles are executed in accordance with, for example, the sampling frequency of the A / D converter 18 and 、 and の of the sampling frequency.

After the processing in step S29 is completed,
The pitch name recognition result in step S27, step S28
Octave determination result in step S25
The state of the flag switched in step is stored in the RAM 13.

If it is determined in step S23 that the input of the ringtone has been terminated by operating the input unit 15, the process proceeds to step S30.

In step S30, the CPU 11 controls the signal sound generator 21 to stop the signal sound being output from the speaker 22.

Then, in a step S31, the CPU 11
Is a melody for notifying an incoming call based on the recognition result of the pitch name and the octave determination result stored in the RAM 13 in step S29, the tempo set in step S21, and the state of the flag switched in step S25. Data is generated and stored in the storage unit 14. After the process of step S31, a voice may be output based on the generated melody data, and the generated melody data may be stored in the storage unit 14 after a confirmation operation by the user. In this case, when an input indicating that the melody data generated by the operation of the input unit 15 is not performed is performed, the processing from step S21 may be executed again, or The melody data may be modified by an operation.

As described above, according to the portable telephone 1 of the second embodiment of the present invention, the pitch name and octave are determined based on the digital data held in the buffer 18a, and the pitch name recognition result is obtained. And the octave judgment result
It is stored in M13. Then, melody data is generated based on the note name recognition result, the octave determination result, the state of the flag, and the tempo stored in the RAM 13.

Therefore, the digital data obtained by the A / D converter 18 is not stored in the RAM 13 after the recognition of the pitch name and the determination of the octave.
Need not store the digital data of the input voice.

Generally, when voice is acquired and converted into digital data, the data amount becomes very large. Although this data amount depends on the sampling frequency and volume level in the A / D converter 18, the portable telephone 1 must ensure sound quality that allows recognition of pitch names and determination of octaves. For this reason, the data amount of the digital data generated by the A / D converter 18 becomes extremely large. However, in the second embodiment, since the digital data held in the buffer 18a is sequentially processed, all the data are processed. There is no need to hold the data in the RAM 13 or the buffer 18a.

Therefore, the buffer 18a and the RAM 13
Can be sufficiently realized even if the capacity is not particularly large, so that the cost can be further reduced. In particular, since the occupation capacity of the RAM 13 by digital data can be reduced during the ring tone input processing shown in FIG. 4, the processing of the CPU 11 is also performed quickly. Therefore, the required hardware performance can be kept low, and the cost can be further reduced.

[0103]

According to the first aspect of the present invention, when a sound is input, a sound is specified based on a note name corresponding to a word indicated by the input sound and a range including the input sound. Therefore, the sound can be specified without analyzing the frequency of the input sound in detail. For this reason, the input sound can be specified efficiently, and the required hardware performance is low, so that it can be realized at low cost. For example, in the portable telephone according to the present invention, when a melody for alerting the incoming call is created based on the input sound, each sound constituting the melody can be easily specified. Further, when inputting the user's voice, the pitch of the user's voice may be, for example, not shifted by one octave or more.
For this reason, a desired sound can be input without uttering at an accurate pitch, so that the burden on the user can be reduced and the sound can be input easily.

According to the second aspect of the present invention, the input sound can be specified efficiently and the melody can be specified. When inputting a melody to the portable telephone, the user may speak a note name in accordance with the melody of wear. further,
When the user utters, it is only necessary to maintain accuracy so as not to deviate from the sound range, that is, not to shift one octave. Therefore, it is possible to provide a portable telephone capable of easily inputting a desired melody.

According to the third aspect of the present invention, since a state in which the input sound is silent can be detected, for example, a state corresponding to a rest when a melody is input can be detected. Therefore, the input melody can be specified accurately. In addition, when the input sound is silent, there is no possibility that the sound name cannot be recognized and the processing is not mistaken.

According to the fourth aspect of the present invention, even when a long sound exceeding the period of acquiring the input sound is input by the acquisition means, it can be recognized as a long sound. Therefore, the long sound can be recognized without being divided into a plurality of sounds, and the length of the input sound can also be accurately specified.

According to the fifth aspect of the present invention, the user:
Signal sounds can be uttered as a guide, and sounds can be input more easily. In other words, when a signal tone is output at a specified tempo, a metronome-like function is performed, so that the user can speak in accordance with a desired tempo. Therefore, sounds and melodies can be input easily and accurately.

According to the sixth aspect of the present invention, when a sound is input, the sound is specified based on the note name corresponding to the word indicated by the input sound and the range in which the input sound is included. Sound can be specified without analyzing the frequency of the input sound in detail. For this reason, the input sound can be specified efficiently, the required hardware performance can be low, and the cost can be reduced. Thus, for example, when a melody is created based on an input sound, each sound constituting the melody can be easily specified. In addition, when inputting a human voice, a note name may be pronounced with a sound having a desired pitch. In this case, since the note name of the input sound and the range to which the input sound belongs are specified, the input voice need only be accurate to the extent that it does not deviate from the range, for example, not to shift by more than one octave. You can input sound.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an internal circuit configuration of a mobile phone 1 according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the mobile phone 1 of FIG.

FIG. 3 is a timing chart showing an operation of the mobile phone 1 of FIG.

FIG. 4 is a flowchart showing an operation of the mobile phone 1 according to the second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 mobile phone 11 CPU 12 ROM 13 RAM 14 storage unit 15 input unit 16 display unit 17 power supply unit 18 A / D converter 18a buffer 19 sound processing unit 20 microphone 21 signal sound generation unit 22 speaker 23 communication unit 24 antenna 25 timer 26 bus

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) H04B 7/26 109L F-term (Reference) 5D015 KK03 5D378 MM05 MM06 MM16 MM65 MM68 MM96 5K027 AA11 DD11 FF03 FF28 HH20 5K067 BB04 FF25 FF31 9A001 BB03 EE02 EE05 HH16 HH17 HH18 HH34 JJ12 KK56 LL09

Claims (6)

[Claims] 1. A portable telephone that outputs a melody when an incoming call is notified. An acquisition means for acquiring an input sound at predetermined intervals, and a sound name obtained by analyzing a word indicated by the input sound acquired by the acquisition means. A sound name recognizing means for recognizing, and a sound range judging means for judging a sound range in which the input sound is included in a plurality of preset sound ranges based on a frequency of the input sound acquired by the acquiring means, A portable telephone, comprising: a sound identification unit that identifies the input sound based on a pitch name recognized by a pitch name recognition unit and a range determined by the range determination unit. 2. A method according to claim 1, wherein said sound specifying means specifies a sound.
2. The mobile phone according to claim 1, further comprising: a melody specifying unit that specifies a melody composed of a plurality of input sounds continuously acquired by the acquisition unit. 3. The portable telephone according to claim 1, further comprising a silence detecting means for detecting whether or not the input sound acquired by said acquiring means is silent. 4. The sound name recognizing means, if the input sound obtained by the obtaining means is not a word indicating a sound name, the input sound is regarded as a part of the input sound whose sound name was most recently recognized. The mobile phone according to any one of claims 1 to 3, wherein the mobile phone recognizes. 5. The portable telephone according to claim 1, further comprising signal tone output means for outputting a signal tone at a predetermined cycle. 6. An input sound specifying method for specifying an input sound, comprising: obtaining an input sound at a predetermined cycle; and analyzing a word indicated by the obtained input sound to recognize a pitch name. Based on the frequency of the acquired input sound, a step of determining a range including the input sound in a plurality of preset sound ranges, and a range determined as a recognized note name Identifying an input sound based on the input sound.