JP2001345886A - Telephone terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change modes with the progress of a melody sound for informing. SOLUTION: When music-reproducing processing is started, a system CPU 10 fetches tempo data and transfers tone data to sound source 133. Next, by successively fetching musical note data, a sounding parameter corresponding to the musical note data is supplied to the sound source 133, and melody sound is generated by the sound source 133. When a mark signal or end data inserted in the musical note data are fetched by the system CPU 10, the tempo data are changed to increased tempo and pitch shift data are changed for pitch-up. Thus the melody is subjected to increased tempo and increased pitch with the progress of the melody sound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone terminal device capable of notifying a notification sound by a melody sound, and is particularly suitable for application to an automobile telephone or a portable telephone.

[0002]

2. Description of the Related Art PDC (Personal D) which is known as an analog cellular system or a digital cellular system.
mobile phone systems such as the digital cellular telecommunication system (igital Cellular telecommunication system) and simplified mobile phone systems (PHS: Pe)
In the rsonal Handyphone System, when an incoming call arrives at a mobile phone carried by the user, a ring tone is emitted to notify the user of the incoming call. Conventionally, a beep sound has been emitted as the ring tone. However, since the beep sound is unpleasant, a melody sound has recently been used instead of the beep sound.

[0003]

A conventional portable telephone capable of reproducing a melody sound is provided with a musical sound generating means capable of performing an automatic performance. This tone generation means is generally implemented by a central processing unit (Central Processing Unit).
t: CPU), ROM (Read Only Memory), RAM (R
Andom Access Memory), a tone generator, and the CPU executes an automatic performance program stored in the ROM to read out music data stored in the ROM or the RAM and set tone generation parameters for the tone generator. By doing so, music is generated. In order to generate high-quality musical sounds, recent musical sound generating means can reproduce music composed of a plurality of channels.

However, in a conventional telephone terminal device such as a portable telephone, a melody sound for notifying a user of an incoming call or a hold is a sound in which a predetermined music is repeatedly emitted and lacks interest. there were.
Therefore, an object of the present invention is to provide a telephone terminal device capable of notifying by a melody sound, in which the mode of the reproduced melody sound changes.

[0005]

In order to achieve the above object, a telephone terminal device of the present invention is a telephone terminal device capable of notifying a notification sound by a melody sound, comprising a storage means capable of storing music data. A reproduction control unit that sequentially interprets the music data read from the storage unit to generate a sounding parameter when a start instruction of the notification sound is issued, and a sound source unit that generates a musical sound in accordance with the sounding parameter. The reproduction control means changes the tone generation parameter so that the musical tone generated by the sound source means changes as the reproduction of the music data progresses.

In the telephone terminal device of the present invention, when the generation of the musical tone corresponding to the musical piece data is completed, the reproduction control means controls the musical tone corresponding to the same musical piece data to be repeatedly generated. In addition, the sounding parameter may be changed such that the tone generated by the sound source means changes at each repetition. Further, in the above-mentioned telephone terminal device of the present invention, a mark signal is inserted into a predetermined portion in the music data stored in the music data storage means, and the reproduction control means is configured to detect the mark signal each time Further, the tone generation parameter may be changed so that the tone generated by the tone generator changes. Furthermore,
In the above-mentioned telephone terminal device of the present invention, the reproduction control means may change the sounding parameter such that the musical tone generated by the sound source means changes every time a predetermined time elapses.

Further, in the telephone terminal device according to the present invention, the reproduction control means may change the tone generation parameter so that a pitch of a musical tone generated by the sound source means changes. Still further, in the telephone terminal device of the present invention, the reproduction control means changes the tempo data in the music data so as to change a tempo of a musical tone generated by the sound source means, thereby changing the tone generation parameter. It may be changed.

According to the present invention, the pitch and tempo of the melody sound change as the melody sound as the notification sound progresses, so that the melody sound reproduced monotonously is heard. The impact given to the user can be made stronger than in the case where In particular, if the melody sound is changed so as to increase the pitch, or is changed so as to increase the tempo, a sense of urgency can be given. In addition, it is possible to estimate how long the notification sound has continued to sound.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a configuration example of an embodiment in which a telephone terminal device of the present invention is applied to a portable telephone.
The mobile phone 1 shown in FIG. 1 generally includes a retractable antenna 1a, and the antenna 1a is connected to a communication unit 13 having a modulation / demodulation function. Central Processing Unit (CPU) 1 for system
Reference numeral 0 denotes a system control unit that controls the operation of each unit of the mobile phone 1 by executing a telephone function program,
A timer is provided to indicate the elapsed time during operation or to generate a timer interrupt at specific time intervals. Also, system C
The PU 10 performs a tone generation related process described later. The system RAM 11 includes a storage area for music data composed of a plurality of parts downloaded from a download center or the like,
User setting data storage area and system CPU
RAM (RandomAcce) in which 10 work areas are set
ss Memory). The system ROM 12 is the system C
ROM storing various telephone function programs for transmission and reception executed by the PU 10, programs for tone generation related processing, and various data such as preset music data.
(Read Only Memory).

The communication section 13 demodulates a signal received by the antenna 1a, modulates a signal to be transmitted, and supplies the modulated signal to the antenna 1a. The received signal demodulated by the communication unit 13 is decoded by a voice processing unit (coder / decoder) 14, and the speech signal input from the microphone 21 is compression-coded by the voice processing unit 14. The audio processing unit 14 performs high-efficiency compression encoding / decoding of audio, for example, a CELP (Code Excited LPC) system or an ADPCM.
(Adaptive difference PCM coding). The tone generator 15 generates a ringtone melody and a hold tone by emitting a reception signal from the audio processor 14 from the reception speaker 22 or reproducing music data. The incoming melody is emitted from the incoming speaker 23, and the hold tone is mixed with the receiving signal and emitted from the receiving speaker 22.

The music data is composed of timbre data, tempo data, and note data of a plurality of parts. The tone generator 15 reproduces a tone based on the music data. At this time, a FIFO for storing note data is provided inside. This FIFO may have a storage capacity capable of storing note data for one song,
If the storage capacity is too small to store one note of note data, the tone generator 15 sends an interrupt request signal (IRQ) to the system CP when a predetermined amount of free space is created in the FIFO.
U10, the system CPU 10 may read the continuation of the note data stored in the RAM 11 or the ROM 12 and transfer the read note data to the musical sound generation unit 15.

Further, an interface (I / F) 16
Is an interface for downloading music data from an external device 20 such as a personal computer. The input unit 17 is an input unit including dial buttons “0” to “9” provided on the mobile phone 1 and various buttons. The display unit 18 is a display device that displays a menu corresponding to a telephone function or a button operation such as a dial button. The vibrator 19 is a vibrator for notifying a user of an incoming call by vibrating the main body of the mobile phone 1 instead of a ring tone at the time of an incoming call. Each functional block transmits and receives data and instructions via the bus 24.

Next, FIG. 2 shows a first configuration of the tone generator 15 in the mobile phone 1 according to the embodiment of the present invention. In the first configuration, the tone generator 15 has a sequence function. Also, the musical sound generation unit 15
FIG. 3 shows the data structure of the music data reproduced by the method described above, and this data structure will be described first. The music data shown in FIG. 3 is music data stored in the system RAM 11 or the system ROM 12. As shown in the figure, the music data has a data configuration in which a header is arranged at the beginning, followed by tone color data, tempo data, and note data for each part, and end data is arranged last. The note data is composed of a mixture of note data of each part.
It consists of part data indicating the part to which it belongs, scale data consisting of note information and octave information, interval data showing the time length to the next note data, and note length data consisting of note length information such as quarter notes and eighth notes. ing. The rest is represented by interval data.

The resolution of the interval data and the note length data in the note data is based on the tempo data. If the tempo data is different, the actual time indicated even if the interval data and the note length data have the same value. Will be different. Also, a plurality of mark signals are inserted between note data, and this mark signal is
This is for generating the melody sound by changing it in the musical sound generation section 15. The mark signal is inserted at an appropriate phrase interval or bar unit. When the sequencer detects this mark signal, the sequencer generates a sounding parameter that changes the pitch and tempo of the melody sound generated by the sound source and supplies the sounding parameter to the sound source. Thus, every time the reproduction of the music data proceeds and the inserted mark signal is detected, the pitch and tempo of the generated melody sound change. In this case, when the pitch is gradually changed or the tempo is gradually changed, a sense of urgency can be given when the notified melody sound is heard.

Further, by detecting the end data located at the end of the music data, it is possible to detect that the music data has ended. By returning to the beginning of the music data when the end is detected, the same music data can be repeatedly reproduced. At the time of repetitive reproduction, the sequencer generates sounding parameters in which the pitch and tempo of the melody sound generated by the sound source change each time the sound is reproduced, and supplies the generated sounding parameters to the sound source. Thus, every time the music data is repeated, the pitch and tempo of the generated melody sound change. In this case, it is preferable to change the pitch so as to gradually increase or to change the tempo so as to gradually increase. Further, the music data is composed of a plurality of parts, and the parts are, for example, four parts of a melody part, an accompaniment part 1, an accompaniment part 2, and a rhythm part. Such music data can be downloaded from a distribution center or the like via the base station 2 or the like shown in FIG. The downloaded music data is stored in the system RAM 11. The base station 2 is provided with a base station antenna 2a.

The tone generator 15 of the first configuration shown in FIG.
Can reproduce the music data having the data structure shown in FIG. 3 to reproduce the incoming melody and the melody sound of the hold sound. As shown in FIG. 2, the tone generator 15 includes an interface (I / F) 30 and a FIFO (First-In First-Out) 3.
1, a sequencer 32, a sound source 33, a digital / analog converter (DAC) 34, and an OR circuit 35. The interface 30 is connected to the system CPU 10 by a bus 24, and under the control of the system CPU 10, music data read from the system RAM 11 or the system ROM 12 is written to an internal data register via the bus 24. The note data (Data) in which the mark signal is inserted among the music data written in the data register of the interface 30 is the FIF
The tone color data of each part of the music data written in O31 and written in the data register is transferred to the tone generator 33. In this case, the system CPU 10 reads out the music data previously selected as the melody sound to be notified and transfers it to the musical sound generation unit 15.

The registers built in the interface 30 include a sequencer control register and a data
A register and a status register are included.
The sequencer control register is
This is a register in which sequencer control data for controlling the sequencer 32 from U10 is written. The sequencer control data written in the sequencer control register includes sequencer start instruction data (Start) for instructing start of musical sound reproduction and sequencer stop instruction data (Stop) for instructing stop of musical sound reproduction. . The data register is a register in which music data is temporarily written from the system CPU 10. Of the music data written in the data register, note data in which a mark signal is inserted is written into the FIFO 31, and tone data is written. Is written to the tone generator 33, and the tempo data (Temp) is transferred to the sequencer 32. Further, the status register is a register indicating a tone generation state of the tone generator 15. The status register includes a note data empty flag (Empty) output from the FIFO 31 and a music data end flag (END) output from the sequencer 32. This status register is a register read by the system CPU 10.

The FIFO 31 has, for example, 32 bytes (32 bytes).
X8 bits), note data in which the mark signal of the music data selected by the system CPU 10 is inserted from the system CPU 10 via the data register of the interface 30 are sequentially written, and the mark signals are sequentially written. The inserted note data is sequentially read by the read request signal (Req) of the sequencer 32. The note data read by the sequencer 32 is discarded from the FIFO 31. The FIFO 31 has such a FIFO
In addition to the O function, it has a function of monitoring the data amount of the stored note data, and the data amount of the note data is set in advance by the system CPU 10 (for example, 8
Byte) or less, a note data empty signal (Em
pty) and sets a note data empty flag in the status register of the interface 30. The note data empty signal is sent to the system C via the OR circuit 35 as an interrupt request signal (IRQ).
The PU 10 is notified.

The sequencer 32 stores a system CPU in a sequencer control register of the interface 30.
By writing the sequencer start instruction data from 10, the sequencer start instruction (Start) is issued, and the operation is performed as follows. However, prior to the sequencer start instruction, the tempo data (Temp) has been transferred to the sequencer 32, the tone color data of each part has been written to the tone generator 33, and some note data has been written to the FIFO 31. There is a need.

First, the sequencer 32 takes in the first note data stored in the FIFO 31. Normally, the first note data is only interval data for performing the first note. After waiting for a waiting time based on the interval data and the tempo data, the next note data is fetched, and the musical note data is acquired. On the basis of the sound length data, a sound generation parameter such as a key-on signal, a key-off signal, and a key code signal is generated and supplied to the sound source 33. At this timing, the next note data is taken in to prepare for the next reproduction. The preparation for reproduction is time management corresponding to the captured note data, and time management is performed based on tempo data and interval data. If the captured data is not a note data but a mark signal, the sequencer 32 changes the current tempo set by the tempo data so as to increase the current tempo, and sets the scale data in the note data captured subsequently. Is changed so as to increase the pitch indicated by.

That is, the tone generation parameters generated in the sequencer 32 are a key-on signal generated at a timing corresponding to the changed tempo data and the interval data, and a timing corresponding to the changed tempo data and the tone length data. The key-off signal is generated from the generated key-off signal and a key code signal whose pitch is increased by changing the pitch specified by the scale data. The sound source 33 reproduces the tone of the part specified by the sounding parameter based on the supplied sounding parameter. For this reason, the tempo of the melody sound reproduced based on the sound generation parameters generated in accordance with the note data after the detection of the mark signal is higher than the original tempo and higher than the original pitch. It becomes a melody sound. In this case, in the sound source 33, the tone color of each part of the melody tone generated in a plurality of parts is the tone color of the part set in advance by the tone color data supplied from the interface 30.

The sequencer 32 supplies a key-off signal to the sound source 33 after a lapse of time corresponding to the note length data included in the fetched note data.
3 stops the reproduction of the melody sound. Next, similar generation processing is performed on the next captured note data.
By performing such a generation process until the end data is detected, each time a mark signal inserted in the note data is detected, the mark signal is reproduced by the sound source 33 based on the sounding parameters supplied from the sequencer 32. As the tempo of the melody sound gradually increases, the pitch gradually increases.

When the sequencer 32 detects the end data, the sequencer 32 and the tone generator 33 stop their operations and clear all data in the FIFO 31.
Also, a music data end signal (END) is generated, and a music data end flag is set in the status register of the interface 30. The system CPU 10 refers to this flag to transfer the same music data to the system R.
Read from AM 11 or system ROM 12,
The music data is repeatedly transferred to the interface 30. This makes it possible to generate a melody sound that repeatedly reproduces the same music data. At the time of repeated reproduction, the sequencer 32 is changed so as to increase the current tempo set by the tempo data, and is changed so as to increase the pitch specified by the scale data in the captured note data. The parameters may be supplied to the sound source 33. By doing so, the tempo of the melody sound gradually increases and the pitch gradually increases each time the melody sound is repeatedly reproduced. Such a melody sound generation process is continuously executed until the incoming button of the input unit 17 is operated or the hold release operation is performed on the mobile phone 1, and the incoming button or the hold release operation is performed. Will be terminated. The process is also terminated when the communication line is disconnected.

When the melody sound generation processing is being executed, the tone generator 33 generates PCM waveform data composed of a plurality of parts based on sounding parameters such as a key-on signal, a key-off signal, and a key code signal supplied from the sequencer 32. Output. The PCM waveform data is converted by a digital-to-analog converter (ADC) 34 into an analog tone signal. When this tone signal is used as a melody sound for notifying an incoming call, the generated melody sound is emitted from the incoming speaker 23. When the tone signal is used as a melody tone for notifying the hold, the reproduced melody tone (transmission hold tone) is supplied to the audio processing unit 14, where the melody tone is compressed and encoded with high efficiency and transmitted to the other party. You.

The OR circuit 35 sends an interrupt request signal (IRQ) to the system CPU 10 based on a note data empty signal (Empty) output from the FIFO 31 when the note data in the FIFO 31 becomes equal to or less than a predetermined amount. appear. Further, the OR circuit 35 generates an interrupt request signal (IRQ) to the system CPU 10 based on the music data end flag (END) output from the sequencer 32. System CPU 1 receiving interrupt request signal (IRQ)
0 refers to the flag in the status register of the interface 30 to check the cause of the interrupt request signal (IRQ) and perform processing corresponding to the cause. At this time, the note data empty flag is set, and the interrupt request signal (I
When the cause of (RQ) is detected as the insufficient note data amount in the FIFO 31, the system CPU 10 transfers, for example, note data of 32 bytes-8 bytes = 24 bytes.
In this transfer of note data, subsequent note data is read from the system RAM 11 or the system ROM 12 and transferred. It is not always necessary to immediately transfer the 24-byte note data, and it is not necessary to transfer all of the 24-byte note data. What is necessary is just to transfer the reproduced sound at the timing and the transfer amount at which the reproduced sound can be reproduced without interruption in the musical sound generation unit 15. Also,
If the music data end flag is set in the status register of the interface 30, the same music data is read from the system RAM 11 or the system ROM 12 for repeated reproduction, and the music data is transferred to the interface 30.

As described above, in the tone generator 15 shown in FIG. 2, when the system CPU 10 instructs the reproduction start of the melody sound, the sequencer 32 detects this and starts generating the melody sound. I do. When the system CPU 10 issues a playback start instruction, the mobile phone 1 receives an incoming call notification and starts playing a ringtone (ringtone melody), or operates a hold operation key to start playing the hold sound. This is the case.

Next, FIG. 4 shows a second configuration of the tone generator in the portable telephone 1 according to the embodiment of the present invention shown in FIG. In the tone generator 115 of the second configuration, the system CPU 10 is responsible for the sequence function. The music data reproduced by the musical sound generation unit 115 having the second configuration has the data configuration shown in FIG.

As shown in FIG. 4, the tone generator 115 includes an interface (I / F) 130, a sound source 133, and a digital / analog converter (DAC) 134. The interface 130 is connected to the system CPU 10 via the bus 24, and the tone generation parameters generated by the system CPU 10 are transmitted through the bus 24 together with the tone data in the music data read from the system RAM 11 or the system ROM 12.・ Written to the register. This pronunciation parameter is the value of the system R
It is generated by the system CPU 10 executing a sequence processing program based on music data read from the AM 11 or the system ROM 12.

The interface 130 supplies the written tone generation parameters to the tone generator 133 and also supplies the tone color data to the tone generator 133. The sound source 133 generates a musical tone of the part specified by the sounding parameter based on the supplied sounding parameter. In this case, the timbre of the tone generated by the part is the timbre of the part set by the timbre data supplied from the interface 130. The sound source 133 generates and outputs PCM waveform data composed of a plurality of parts by sequentially supplying sound generation parameters including a key-on signal, a key-off signal, a key code signal, and the like. The PCM waveform data is converted by a digital-to-analog converter (ADC) 134 into an analog tone signal. When this tone signal is used as a melody sound for notifying an incoming call, the generated melody sound is emitted from the incoming speaker 23. When the tone signal is used as a melody tone for notifying the hold, the reproduced melody tone (transmission hold tone) is supplied to the audio processing unit 14, where the melody tone is compressed and encoded with high efficiency and transmitted to the other party. You.

The tone generator 115 having the second configuration as described above.
The music reproduction process including the sequence process executed by the system CPU 10 that supplies the pronunciation parameters to the song will be described below. The system CPU 10 starts the music reproduction process when the incoming call notification is detected in the mobile phone 1 and when the hold is detected by operating the hold operation key. In the music reproduction process, first, the system C
The PU 10 reads out music data for generating a melody sound from the system RAM 11 or the system ROM 12. Here, the music data read from the system RAM 11 or the system ROM 12 is music data previously selected as a melody sound.

The tempo data of the read music data is taken into the system CPU 10, and the timbre data of each part is written into the interface 130 and supplied to the sound source 133. The system CPU 10 interprets the first note data of the read music data. The first note data is usually only the interval data for performing the first sound. Therefore, after waiting for a waiting time based on the interval data and the tempo data read from the system RAM 11 or the system ROM 12, the next note data is read out, and the key-on signal is read out based on the scale data and the note length data. , A key-off signal and a key code signal are generated and written into the interface 130. Next, the next note data is read to prepare for the next reproduction. This preparation for reproduction is time management corresponding to the next note data, and time management is performed based on tempo data and interval data. If the captured data is not a note data but a mark signal, the system CPU 10 changes the tempo data so as to increase the current tempo set by the tempo data, and also changes the tempo data in the following captured note data. The key shift data is changed so as to increase the pitch designated by the scale data.

That is, the sounding parameters generated by the system CPU 10 are the key-on signal generated at the timing corresponding to the changed tempo data and the interval data, and the timing corresponding to the changed tempo data and the sounding length data. The generated key-off signal and the key code signal obtained by changing the pitch specified by the scale data with the key shift data and raising the pitch are constituted. The sound source 133 reproduces the tone of the part specified by the sounding parameter based on the sounding parameter supplied via the interface 130. For this reason,
The tempo of the melody sound reproduced by the sound source 133 is higher than the original tempo and is higher than the original pitch based on the sound generation parameters generated in accordance with the note data after the detection of the mark signal. It becomes a melody sound. In this case, the tone color of each part of the melody sound of a plurality of parts generated by the sound source 133 is
The tone color of the part is set in advance with the tone color data supplied from the interface 130.

The system CPU 10 supplies a key-off signal to the sound source 133 via the interface 130 after waiting for the passage of time corresponding to the tempo data and the note length data included in the taken note data. 1
33, the reproduction of the melody sound is stopped. Next, similar generation processing is performed on the next captured note data. By performing such a music reproduction process until the end data is detected, every time a mark signal inserted in the note data is detected, the music reproduction process is performed by the sound source 133 based on the sounding parameter supplied from the system CPU 10. The tempo of the melody sound gradually increases, and the pitch gradually increases.

When detecting the end data, the system CPU 10 stores the same music data in the system RAM 11.
Or read repeatedly from the system ROM 12,
The above-mentioned music reproduction processing is repeatedly executed. This makes it possible to generate a melody sound that repeatedly reproduces the same music data. When repeatedly played back, the system CPU 10 changes the current tempo set by the tempo data so as to increase the tempo,
The sound generation parameter changed so as to increase the pitch specified by the scale data in the captured note data may be supplied to the sound source 133 via the interface 130. By doing so, the tempo of the melody sound gradually increases and the pitch gradually increases each time the melody sound is repeatedly reproduced.
The music reproduction processing of such a melody sound is performed by the mobile phone 1.
The operation is continuously executed until the incoming button of the input unit 17 is operated or the hold release operation is performed, and is terminated when the incoming button or the hold release operation is performed. The process is also terminated when the communication line is disconnected.

When the music reproduction process of the melody sound is being executed, the sound source 133 generates PCM waveform data composed of a plurality of parts based on sound generation parameters such as a key-on signal, a key-off signal, and a key code signal supplied from the system CPU 10. And output. The PCM waveform data is converted by a digital-to-analog converter (ADC) 134 into an analog tone signal. When this tone signal is used as a melody sound for notifying an incoming call, the generated melody sound is emitted from the incoming speaker 23. Also,
When the musical sound signal is used as a melody sound for notifying the hold, the reproduced melody sound (transmission hold sound) is supplied to the audio processing unit 14, and is subjected to high-efficiency compression encoding and transmitted to the other party.

Next, the music reproduction main processing when the system CPU 10 has the second configuration in which the system CPU 10 has the sequence function in the telephone terminal device of the present invention will be described with reference to the flowchart shown in FIG. I will explain it. When the music playback main process is started, it is determined in step S10 whether a music playback trigger has been detected. In this case, it is determined that the music playback trigger is present when the incoming call notification is detected in the mobile phone 1 and when the hold operation key is operated to perform the hold operation. If it is determined that there is an incoming call or a hold operation and a music playback trigger is present, the music data selected in advance is accessed in step S11, and the tempo data is loaded into a tempo register TEMPO set in the system RAM 11. It is. Next, the timbre data of the music data selected in step S12 is read out and transferred to the tone generator 133 of the tone generator 115. Further, in step S13, the first note data in the music data is fetched and interpreted, and the key code signal generated corresponding to the scale data of the note data and the key-on signal are converted in step S14 into the tone generation unit 115. Is transferred to the sound source 133. However, the timing at which the key-on signal is generated is the timing when the time indicated by the interval data of the preceding note data is reached, and the key-on signal is not generated if the first note data is composed of only the interval data. . If the scale data and the note length data have significant values, a key code signal and a key-on signal are immediately generated and transferred.

Next, at step S15, the interval data in the first note data is taken into the interval register INT set in the system RAM 11, and
In step S16, the note length data in the first note data is stored in the note length register set in the system RAM 11.
Incorporated into GT. Further, in step S17, the interval control register INTC, the tone length control register GTC, and the key shift register KS set in the system RAM 11 are reset to "0". The reproduction of the music by the tone generation unit 115 is executed until a music end trigger is detected in step S18. The music end trigger is detected by the input unit 1 in the mobile phone 1.
7 is detected when the incoming call button is operated or when the hold release operation is performed. It is also detected when the communication line is disconnected. Here, when the music end trigger is detected, a reproduction stop process is performed in step S19, the operation of the musical sound generation unit 15 is stopped, and various registers are cleared. Then, the music reproduction main processing ends. If no music playback trigger is detected in step S10, the music playback main processing ends.

By the way, the timer is interrupted to the system CPU 10 at predetermined time intervals while the music data is being reproduced. When a timer interrupt is applied to the system CPU 10, the system CPU 10 executes a timer interrupt process (IR
Perform Q). FIG. 6 shows a flowchart of the timer interrupt processing (IRQ). This timer interruption processing is mainly performed between step S17 and step S18 of the music reproduction main processing. System CPU
When the timer 10 detects the timer interrupt signal, the timer interrupt processing is started, and in step S20, it is determined whether or not the reproduction is currently being performed. Here, if it is determined that the reproduction is being performed, step S
In the interval control register INTC at 21,
The calculation result of (INTC + TEMPO) is written, and the calculation result of (GTC + TEMPO) is written to the note length control register GTC. At the time of the first timer interrupt processing, since the interval control register INTC and the tone length control register GTC have been reset to "0" in step S17 of the music reproduction main process, the interval control register INTC and the tone length control register have been reset.
The tempo data set in the tempo register TEMPO is written to GTC as it is.

Next, in step S22, it is determined whether or not the value stored in the tone length control register GTC is equal to or greater than the tone length data set in the tone length register GT. In this case, since the value of the tone length control register GTC is equal to the tempo data and is equal to or less than the tone length data, it is determined as NO, and step S2
3 is skipped. In step S24, it is determined whether or not the value stored in the interval control register INTC is equal to or greater than the interval data set in the interval register INT. In this case, the value of the interval control register INTC is equal to the tempo data and is equal to or less than the interval data, so that the determination is NO, and the timer interrupt processing ends. Also, when it is determined in step S20 that the reproduction is not being performed, the timer interrupt processing ends.

When a predetermined time has elapsed, a timer interrupt is triggered, and the above-described timer interrupt process is started again and executed. In the timer interrupt processing, if the data is being reproduced, the interval control register IN is set in step S21.
The calculation result of (INTC + TEMPO) is written to TC. In this case, in the second timer interrupt processing, (INTC + TEMPO) = (TE
MPO + TEMPO) is written. That is, every time the timer interrupt process is executed, the value of the interval control register INTC increases by the tempo data. In this way, the value obtained by accumulating the tempo data for each timer interrupt process is written to the interval control register INTC. The same applies to the tone generation length control register GTC to be written in step S21, and a value obtained by accumulating tempo data is written to the tone generation length control register GTC for each timer interrupt process.

Accordingly, in step S22, the value of the tone length control register GTC obtained by accumulating tempo data for each timer interrupt process is compared with the tone length data stored in the tone length register GT. Since the value of the tone length control register GTC increases by the tempo data each time the timer interrupt process is performed, the tone length control register GTC is executed by performing the timer interrupt process a plurality of times.
Is greater than or equal to the note length data. In this case, the tone length of the musical tone corresponding to the musical note data has elapsed, so the key-off signal is generated by the system CPU 10 in step S23 and supplied to the musical tone generating unit 115. The tone generator 133 of the tone generator 115 receives the tone and stops generating the tone. In step S24, the value of the interval control register INTC in which the tempo data is accumulated is compared with the interval data for each timer interrupt process, and the timer interrupt process is performed a plurality of times. The value is greater than or equal to the interval data. In this case, since the sounding timing of the next note data has arrived, the next data is fetched in step S24.

It is determined in step S26 whether or not the fetched data is note data. If it is determined that the fetched data is a mark signal or end data, the process branches to step S27 and tempo data (TEMP
O) is added to α, and the tempo is increased by α. Further, β is added to the key shift data (KS), and the pitch is increased by β in the subsequent processing. Next, the next data is fetched in step S28, but since the mark signal and the end signal are not inserted continuously, the data fetched here is the note data. When the processing in step S28 is completed, or when the data captured in step S26 is determined to be note data, since the sounding timing has already been reached, the scale data of the note data captured in step S29 has been reached. Are transmitted to the tone generator 133 of the tone generator 115. However, the key code signal is generated by being modified according to the key shift data stored in the key shift register KS. Thereby, the sound source 13
3, a melody sound having a pitch changed according to the key shift data is generated and output.

Next, the interval data in the note data taken in step S30 is taken into the interval register INT, and the note length data in the note data taken in step S31 is taken into the note length register GT. Further, in step S32, the interval control register INTC and the tone generation length control register GTC are reset to "0". As a result, the above-described timer interrupt processing is repeatedly performed,
The sounding continuation time corresponding to the sequentially captured note data and the sounding time interval until the next sounding are managed. In this case, the tempo data increases by α each time the mark signal or the end data is captured, and the key shift data also increases by β each time the mark signal or the end data is captured. The increased melody sound is generated by the musical sound generation unit 115. The tempo is increased because the value of the tempo register TEMPO, which increases each time the timer interrupt processing is executed in step S21, increases by α each time a mark signal is detected.

In this manner, the note data into which the mark signal has been inserted is sequentially captured, and tone generation parameters corresponding to the captured note data are generated.
And the tempo and pitch are increased in accordance with the fetched mark signal, so that the reproduction of the music data progresses. Then, every time the reproduction of the music data is completed and the end data is taken in, the tempo and pitch are increased, and each time the same music data is repeatedly reproduced, the tempo and pitch of the melody sound are increased. Will be done. Note that the values of α and β can be any values, and α
If β or β is a negative number, a melody sound with a tempo-down or pitch-down is generated as the reproduction of the music data progresses. Further, in the above description, the tempo and the pitch are changed by inserting a mark signal into the note data. However, the tempo and the pitch are changed every time the reproduction of the music data elapses a predetermined time. You may go. In this case, the elapsed time can be known by sequentially accumulating the interval data of the note data, and the tempo and the pitch may be changed using this.

As described above, the tone reproduction-related processing and the telephone function processing in the telephone terminal device of the present invention are realized by the system CPU 10 executing the program. Such a program is stored in the system ROM 12
However, it may be installed in the system RAM 11 from the external device 20. When the program is installed from the external device 20 in this manner, the program can be easily replaced or upgraded. In this case, the external device 20 may be a drive of a removable disk such as a CD-ROM, an MO, and an HDD.

The tone generator 15 (11) described above
The sound source 33 (133) in 5) can be constituted by a frequency modulation type sound source, that is, an FM sound source.
The FM sound source utilizes harmonics generated by frequency modulation for synthesis of musical tones, and can generate a waveform having harmonic components including non-harmonic sounds with a relatively simple circuit. The FM sound source can generate a wide range of musical sounds from synthetic sounds of natural musical instruments to electronic sounds. The FM sound source uses an oscillator called an operator that oscillates a sine wave equivalently. For example, an FM sound source can be configured by cascading a first operator and a second operator. Further, the FM sound source can be configured even when the operator's own output is fed back and input.

Further, the tone generator 33 (133) in the tone generator 15 (115) is not limited to the FM tone generator, but may be a waveform memory tone generator (PCM tone generator, ADPCM tone generator), a physical model tone generator. The sound source may be configured as a hardware sound source using a DSP or the like, or a software sound source that executes a sound source program. It should be noted that the telephone terminal device of the present invention is not limited to being applied only to the above-mentioned mobile telephone, but can be applied to information equipment having a musical sound generating means, a personal computer having a musical sound generating means, and the like.

[0048]

According to the present invention, as described above, the pitch and tempo of the melody sound change as the melody sound as the notification sound progresses. , The impact on the user can be increased. In particular, the melody sound will change to pitch up,
If you change it to increase the tempo,
More urgency can be given. In addition, it is possible to estimate how long the notification sound has continued to sound.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of an embodiment when a telephone terminal device of the present invention is applied to a mobile phone.

FIG. 2 is a diagram showing a first configuration of a musical sound generation unit of the mobile phone according to the embodiment of the present invention.

FIG. 3 is a diagram showing a data configuration of music data reproduced by a musical sound generation unit of the mobile phone according to the embodiment of the present invention.

FIG. 4 is a diagram showing a second configuration of the tone generator of the mobile phone according to the embodiment of the present invention.

FIG. 5 is a flowchart of a music reproduction main process when the mobile phone according to the embodiment of the present invention is used as the musical sound generation unit of the second configuration.

FIG. 6 is a flowchart of a timer interrupt process (IRQ) when the mobile phone according to the embodiment of the present invention is configured as a tone generator of the second configuration.

[Explanation of symbols]

1 mobile phone, 1a antenna, 2 base station, 2a
Antenna, 10 system CPU 10, 11 system RAM, 12 system ROM, 13 communication unit, 14
Voice processing unit, 15 tone generation unit, 16 interface, 17 input unit, 18 display unit, 19 vibrator, 20 external equipment, 21 microphone, 22 receiving speaker, 23 receiving speaker, 24 bus, 30 interface, 31 FIFO, 32 Sequencer, 33
Sound source, 34 DAC, 35 OR circuit, 115 tone generator, 130 interface, 133 sound source

Claims (6)

[Claims] 1. A telephone terminal device capable of notifying a notification sound by a melody sound, comprising: storage means capable of storing music data; and read from the storage means when a start instruction of the notification sound is issued. Playback control means for sequentially interpreting the music data to generate a sounding parameter; and sound source means for generating a musical tone in accordance with the sounding parameter. A telephone terminal device, wherein the sounding parameter is changed so that a generated musical tone changes. 2. The reproduction control means controls so as to repeatedly generate a tone corresponding to the same music data when the generation of the music corresponding to the music data is completed. 2. The telephone terminal device according to claim 1, wherein said tone generation parameter is changed so that a tone generated by said sound source means changes. 3. A mark signal is inserted into a predetermined portion of the music data stored in the music data storage means, and the reproduction control means controls the sound source means every time the mark signal is detected. 2. The telephone terminal device according to claim 1, wherein said tone generation parameter is changed so that a generated musical tone changes. 4. The reproduction control device according to claim 1, wherein the reproduction control unit changes the tone generation parameter such that a tone generated by the sound source unit changes every time a predetermined time elapses. The telephone terminal device according to the above. 5. The reproduction control means according to claim 1, wherein said tone generation parameter is changed so that a pitch of a musical tone generated by said sound source means changes. Telephone terminal equipment. 6. The method according to claim 6, wherein the reproduction control means changes the tone generation parameter by changing tempo data in the music data so that a tempo of a musical tone generated by the sound source means changes. Claim 1.
The telephone terminal device according to any one of claims 1 to 4.