JP4011095B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a portable terminal device such as a cellular phone that can read out a text of a mail or a browser.

  Mobile terminal devices such as mobile phones have been rapidly developed in recent years, and many devices that enable not only phone calls but also mail communication and connection to the Internet have become widespread.

  However, conventional mobile terminal devices such as mobile phones are not equipped with a function for reading out text sentences such as e-mails and browsers, which is inconvenient for users with poor vision or elderly people. It was.

  The present invention has been made to solve such a problem, and can read aloud predetermined information such as a text sentence such as an e-mail or a browser and cannot see the screen of the information terminal. Another object of the present invention is to provide a portable terminal device that is easy to use for elderly people with reduced vision.

  In order to solve the above-described problem, the mobile terminal device according to the present invention includes a signal processing unit including a DSP chip and a download program storage unit that stores a downloaded control program, and reads out first information. A download means, a second voice reading means for reading out second information, and a switching means for switching between the first voice reading means and the second voice reading means based on the information to be read, And a voice codec program storage area and a voice reading program storage area.

  In addition, the first information includes a text sentence.

  Further, the second information includes a number of a pressed numeric key or a menu item.

  According to the present invention, it is possible to read a predetermined information such as a text sentence such as an email or a browser, and to provide a portable terminal that is easy to use for a user with poor visual acuity or an elderly person with poor visual acuity. There is an effect.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a mobile phone as a mobile terminal device of the present invention. This cellular phone includes an antenna 1 that receives radio waves, an RF unit 2 that is connected to the antenna 1 and performs modulation / demodulation processing using a carrier wave signal, a signal processing that is connected to the RF unit 2, and is necessary based on the received signal A signal processing unit 3 that obtains a necessary output signal from an input speech signal or key input signal, and a signal processing unit 3 that obtains a display signal such as a simple output speech signal or text sentence, and is obtained by the signal processing unit 3 An analog circuit 4 for converting the digital audio signal into an analog signal or converting the analog audio signal into a digital audio signal, a speaker 5 connected to the analog circuit 4 for outputting audio, a microphone 6 for inputting audio, and these For storing the data necessary for the above process, the CPU 8 as a control unit for performing the control necessary for these processes, and for performing the necessary display by voice. A source LSI (speech synthesis LSI) 9, and a key operation unit 10 for performing key input.

  The signal processing unit 3 uses a download type DSP as a DSP (Digital Signal Processor) for digital signal processing, and includes a DSP chip 3a constituting a hardware unit and a control program for the downloaded control. A download program storage unit (RAM) 3b for storing programs is provided. This download program includes a voice codec program for using a DSP as a voice codec during a call, and a voice reading program for use as a voice reading function for reading a text sentence such as a mail by voice when waiting. Are stored in the storage areas 3b-1 and 3b-2.

  The storage unit 7 includes a FLASH memory 7a and an SRAM 7b. The FLASH memory 7a includes a DSP area 71, a CPU area 72, a DSP and CPU shared area 73, and other areas 74 as shown in FIG. A storage area is provided. The DSP area 71 is divided into a voice codec firmware area 71a and a voice reading firmware area 71b. The DSP and CPU shared area 73 stores various audio data as equalizer audio waveform data so that the audio can be appropriately changed and output, such as mail audio, browser audio, and alarm audio. In these voices, for example, mail voice and browser voice are provided with voice data so that male voice and female voice can be selected as appropriate.

  The CPU area 72 of the FLASH memory stores a CPU control program, and the other area 74 stores data such as fixed voices, games, ringtones, images, and telephone books as user areas used by the user. Is remembered.

  The tone generator LSI 9 has an ADPCM (Adaptive Differential Pulse Code Modulation) function, and vocabulary frequently used at the time of the numeric key operation of the key operation unit 10 or the reading process of the menu is registered. And output as audio. Specifically, the tone generator LSI 9 includes a tone generator such as MIDI for outputting ringtones, an ADPCM decoder for executing the ADPCM function, and an audio signal connected to the tone generator such as MIDI and an ADPCM decoder. And a sound source such as MIDI and a memory in which audio data used by the ADPCM decoder (including vocabulary frequently used at the time of numeric key operation and menu reading processing) are registered. The analog circuit 4 includes a D / A converter 4a, an A / D converter 4b, a DTMF unit 4c for outputting DTMF (Dial Tone Multi Frequency), and the like.

  In the above configuration, in the mobile phone according to the embodiment, the antenna 1 and the RF unit 2 constitute the receiving unit and the transmitting unit of the present invention. Further, the DSP chip (DSP core) 3a of the signal processing unit 3 and the voice reading program (hereinafter referred to as “voice reading DSP”) and the sound source LSI 9 stored in the RAM 3b constitute voice reading means. In the embodiment of the present invention, the voice reading DSP and the sound source LSI 9 are switched and used by the CPU 8 based on the type of the reading information as shown in FIGS. The DSP is mainly in charge of reading a text sentence (a), and the tone generator LSI 9 is mainly in charge of reading a pressed numeric key or reading a menu (b).

  FIG. 4 is a flowchart showing the basic operation of the voice reading DSP and the sound source LSI 9. First, in the case of reading a text sentence, when the operation of the reading function is started (S41), the voice reading DSP performs the reading operation of the text sentence until the end key is operated or until the end of the text sentence (S42, S43). When the end key is operated or when reading of the text is finished (S43, Y), the voice reading DSP is in a standby state (S44). If there is a key operation (S45) and it is a numeric key operation (S45, Y), the ADPCM of the tone generator LSI 9 is turned on (S46) and is operated by speech synthesis output. The number keys are read out by voice (S47). On the other hand, when the key operation is a function key operation (S45, N), the speech reading DSP is in an operating state (S48), and the process returns to step S42 to read out the text sentence. In this way, the voice reading DSP is in charge of reading a text sentence, while the sound source LSI 9 is in charge of reading a numeric key, thereby reducing the uncomfortable feeling of reading sound quality. Further, the tone generator LSI 9 is configured to read out a predetermined registered vocabulary at the time of an operation request in the ADPCM function, thereby reducing a sense of discomfort such as a voice phrase.

  The voice reading DSP functions as a voice codec DSP using a voice codec program stored in the RAM 3b during a call. In addition, the voice reading DSP can output the remaining battery level detection value by a remaining battery level detector (not shown) normally provided in a mobile phone conventionally by voice. In this case, audio may be automatically output only when the remaining battery level is lower than a predetermined value, and this audio is also used as equalizer audio waveform data stored in the DSP and CPU shared area 73. As a stored alarm sound, attention may be urged to charge the battery. The change of the voice can be changed by appropriately selecting a dedicated voice from the equalizer voice waveform data even when reading a mail or reading a browser.

  FIG. 5 is a flowchart schematically showing the above-described equalizing control operation. When there is an instruction to read a text by the voice reading DSP function (S51), when it is a mail, the voice for mail is selected (S52, Y), and the appropriate voice for men or women is selected. Voice reading is performed (S53 to S55). It should be noted that a male or female voice may be automatically selected as appropriate depending on the registered gender of the mail sender, and the voice reading may be performed. Similarly, when reading a browser, a voice for male or female is similarly selected and read aloud (S56 to S59). In the case of the battery remaining amount notification, as in the example described above, when the remaining amount falls below a predetermined value, it is read out by an alarm sound (S60, S61). It should be noted that the reading by alarm sound may be performed by registering a predetermined vocabulary in the memory of the tone generator LSI 9 and reading out the vocabulary.

  In addition, the mobile phone according to the embodiment of the present invention includes an automatic incoming call response unit capable of setting an automatic incoming call response mode, and when reading a text sentence in the automatic incoming call response mode, a voice reading DSP is received. Reading a text sentence saves the trouble of reading a mail sentence. On the other hand, when a call is received, the voice codec DSP is set in an operating state, and a normal call is performed. That is, the voice reading DSP and the voice codec DSP are automatically switched according to either the incoming mail or the incoming telephone call.

  FIG. 6 is a flowchart showing an operation when there is an incoming call when the automatic incoming call mode is set. When there is an incoming call or mail after the automatic incoming call mode setting (S71), the speakerphone is turned on ( In the case of incoming mail (S73, Y), the DSP is made to function as a voice reading DSP, and the mail is read out by voice (S74). After reading, the state before the incoming call is restored (S75). On the other hand, in the case of an incoming call (S73, N), the DSP functions as a voice codec DSP to enable a hands-free call (S76), and after the call ends, the state before the call is restored. In addition, when there is an incoming mail, notification of the incoming mail may be performed, and when there is an incoming call, notification that the incoming telephone call has occurred may be performed in advance by voice.

  As described above, one embodiment of the present invention has been described by taking a mobile phone as an example. However, the present invention is not limited to a mobile phone, and various types of functions having a reception function or a transmission function, such as a PDA. Needless to say, it can be applied to portable information terminals.

It is a block diagram which shows the mobile telephone which concerns on embodiment of this invention. It is a figure which shows the storage area of a FLASH memory. It is a block diagram which shows the route diagram of an output audio | voice. It is a flowchart which shows operation | movement of the voice reading DSP and sound source LSI. It is a flowchart which shows equalizing control. It is a flowchart which shows the control at the time of an automatic incoming call.

Explanation of symbols

  1 antenna, 2 RF unit, 3 signal processing unit, 3a DSP core (chip), 3b download program storage area (RAM), 3b-1 program storage area for voice codec, 3b-2 program storage area for voice reading, 4 analog Circuit, 5 Speaker, 7 Memory, 7a FLASH memory, 8 CPU, 9 Sound source LSI, 71 DSP area, 71a Voice codec firmware area, 71b Voice reading firmware area, 72 CPU area, 73 DSP and CPU shared area .

Claims (3)

A first voice reading unit having a signal processing unit having a download program storage unit for storing a DSP chip and a control program to be downloaded;
Second voice reading means for reading second information;
Switching means for switching the first voice reading means and the second voice reading means based on information to be read,
The download program storage unit includes a voice codec program storage area and a voice reading program storage area. The mobile terminal device according to claim 1,
The mobile terminal device, wherein the first information includes a text sentence. The mobile terminal device according to claim 1,
The mobile terminal device, wherein the second information includes a numeric key or a menu item that has been pressed.

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