JP2001186279A - Mobile communication terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the user's operability of a mobile communication terminal device by selecting surely and smoothly a communication mode when an outgoing operation is carried out by means of a communication history. SOLUTION: A communication mode deciding means 20a decides whether an audio communication mode or a TV telephone communication mode is used as a communication mode when an outgoing/incoming history is produced by a history preparation means 20b. The decided communication mode is added to the information elements including the telephone number, date, time, name, face image, etc., and stored in a RAM 22. Then an icon showing the communication mode is displayed on an LCD display 35 together with the said information elements when an outgoing operation is carried out by means of the outgoing/ incoming history.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to, for example, PHS
The present invention relates to a mobile communication terminal used in a (Personal Handyphone System) or a CDMA mobile phone system, and more particularly to a device having a videophone communication mode in addition to a voice communication mode.

[0002]

2. Description of the Related Art In recent years, as one of mobile communication terminals such as a portable telephone terminal and a PHS terminal, a terminal device having a television telephone communication function has been developed. This type of device is called, for example, a Visual Phone,
The video signal captured by the camera is encoded and transmitted together with the audio signal to the communication partner. On the other hand, the video signal and the audio signal received from the communication partner are decoded and reproduced, and the video signal is displayed on the display and the audio signal is displayed. It is configured to output from a speaker.

[0003] On the other hand, mobile communication terminals such as mobile phones and PHS terminals are generally provided with a telephone directory. By searching and specifying this telephone directory, a call can be made without inputting the telephone number of the partner terminal each time. I can do it. In addition to the telephone directory, there is a telephone which has a function of creating a transmission history and a reception history so that communication management can be performed based on these histories after a communication, or a return call can be made.
The function of creating the telephone directory and the history of incoming and outgoing calls is also employed in the mobile communication terminal device having the above-described video telephone communication mode.

[0004]

However, in a conventional mobile communication terminal device having a television telephone communication mode, the communication mode is not managed in the telephone directory and the call history. For this reason, the user cannot confirm whether the communication mode usable by the communication partner is the voice communication mode or the videophone communication mode only by referring to the telephone directory and the outgoing / incoming call history. Therefore,
When making a call using the outgoing / incoming call history, the communication mode cannot be selected smoothly and reliably.

The present invention has been made in view of the above circumstances, and an object thereof is to enable a communication mode to be reliably and smoothly selected when making a call using a communication history, thereby enabling a user to select a communication mode. An object of the present invention is to provide a mobile communication terminal device with improved operability.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention selectively switches between a voice communication mode for making a call using voice and a multimedia communication mode for making a call using voice and video. In a mobile communication terminal device that uses and communicates, each time communication is performed, it is determined whether the communication mode used in the communication is a voice communication mode or a multimedia communication mode such as a videophone communication mode. Then, a communication history including information indicating the communication mode used for communication is created based on the determination result.

Therefore, according to the present invention, it is possible to manage whether the communication mode, that is, the voice communication mode or the multimedia communication mode is used in the communication history. For this reason, the user can confirm the communication mode used for each communication partner by referring to the communication history, and when performing, for example, re-transmission or return transmission based on the communication history, for each communication partner, It is possible to select the optimum communication mode without error.

[0008]

FIG. 1 is a functional block diagram showing an embodiment of a mobile communication terminal according to the present invention.
This terminal device includes a radio unit 1, a control unit 2, an input / output unit 3,
And a power supply unit 4.

In FIG. 1, a radio frequency signal arriving from a base station (not shown) via a radio channel is transmitted through an antenna 1.
After being received at 1, the signal is input to a receiving circuit (RX) 13 via an antenna duplexer (DPX) 12. Receiving circuit 13
Comprises a high-frequency amplifier, a frequency converter and a demodulator.
After the low-noise amplifier amplifies the radio signal with a low-noise amplifier, the frequency converter converts the radio signal into a frequency synthesizer (SY).
N) The signal is mixed with the reception local oscillation signal generated from 14 and frequency-converted into a reception intermediate frequency signal or reception baseband signal, and the output signal is digitally demodulated by a demodulator. The demodulation method is, for example, QP for a PHS terminal.
An orthogonal demodulation method corresponding to the SK method is used. Also,
In the case of a CDMA portable terminal, despreading using a spreading code is used for primary demodulation, and quadrature demodulation is used for secondary demodulation. The frequency of the reception local oscillation signal generated from the frequency synthesizer 14 is specified by the control unit 2.

The demodulated signal output from the demodulator is input to the control unit 2. The control unit 2 includes a baseband circuit 20 formed as an LSI, a ROM 21, and a RAM 22. The baseband circuit 20 includes a microprocessor (C
PU) and, for example, a DSP (Digital Signal Processor)
, An audio codec and a video codec.

The demodulated signal is first separated into audio data and video data in the baseband circuit 20, and the audio data is subjected to error correction decoding processing and then audio decoded by an audio codec. The video data is subjected to an error correction decoding process for the video, and then decoded by the video codec. The received voice signal reproduced by these decoding processes is loudspeaked from the speaker 32 of the input / output unit 3, and
The video signal is supplied to a liquid crystal display (LCD) 35 via a display drive circuit (DRY) of the input / output unit 3 and displayed. The received video data is stored in the RAM 2 if necessary.
2 is stored.

On the other hand, the microphone 3 of the input / output unit 3
1 and the transmitted voice signal of the user and the camera (C
AM) 36, the video signal of the user captured by the control unit 2
, Respectively. The baseband circuit 20 encodes the transmission audio signal and the video signal with an audio codec and a video codec respectively, and then performs an error correction coding process, and then multiplexes the data in a predetermined format. Then, the multiplexed transmission data is supplied to the transmission circuit (TX) 15 of the radio unit 1.

The transmission circuit 15 includes a modulator, a frequency converter, and a transmission power amplifier. The transmission data is digitally modulated by a modulator, and then mixed with a transmission local oscillation signal generated by a frequency synthesizer 14 by a frequency converter and frequency-converted into a radio frequency signal. As a modulation method, a QPSK method is used for a PHS terminal. In the case of a CDMA portable terminal, QPSK is used for primary modulation, and spreading modulation using a spreading code is used for secondary modulation. Then, the generated transmission radio frequency signal is amplified to a predetermined transmission level by a transmission power amplifier, supplied to an antenna 11 via an antenna duplexer 12, and transmitted from the antenna 11 to a base station (not shown). You.

The power supply unit 4 is provided with a battery 41 such as a lithium ion battery, a charging circuit 42 for charging the battery 41, and a voltage generation circuit (PS) 43. The voltage generation circuit 43 includes, for example, a DC / DC converter, and generates a predetermined power supply voltage Vcc based on the output voltage of the battery 41.

The input / output unit 3 includes a microphone 31 and a speaker 32 as a handset, a liquid crystal display 3
5. In addition to the camera 36, a key input unit (KEY) 33 and a sounder 37 are provided. The key input unit 33 includes, for example, a dial key 33a and various function keys 33b, as shown in FIG. 2, and the function key 33b includes an off-hook key 33c, an on-hook key 33d, and a search key 33e. A communication mode switching function, which is a specific function, is also assigned to some of the dial keys 33a. The communication mode switching key 33f is used when switching between the voice communication mode and the videophone communication mode is designated.

By the way, the microprocessor of the control section 3 includes a communication mode determining means 20a, a history creating means 20b, a voice communication control means 20c, and a video telephone communication control means 20d as control functions according to the present invention. Have.

When the voice communication mode is selected and designated as the communication mode at the time of outgoing / incoming, the voice communication control means 20c sets its own device to an operation state corresponding to the voice communication mode, and follows a predetermined voice communication protocol. A communication link is formed with the communication partner terminal to perform voice communication.

The television telephone communication control means 20d comprises:
When the videophone communication mode is selected and designated as the communication mode at the time of outgoing / incoming calls, the own device is set to an operation state corresponding to the videophone communication mode, and the communication partner terminal is set according to a predetermined videophone communication protocol. A television telephone communication is performed by forming a communication link between the two.

Each time communication is performed by the voice communication control means 20c or the videophone communication control means 20d, the communication mode determination means 20a determines whether the communication mode used in the communication is the voice communication mode or not. It is determined whether the mode is the communication mode.

The history creating means 20b creates an outgoing call history and an incoming call history each time communication is performed. The information elements constituting the history include icons representing the telephone number, date, time, and communication mode of the communication partner. For example, when the name of the communication partner is registered in advance in, for example, a telephone directory, this name is also included in the information element, and when the face image of the user is sent from the communication partner, the face image is also included in the information element. Include in element.

Next, the operation of the apparatus configured as described above will be described. When the communication is completed, the control unit 3 performs a process of creating a call history by the microprocessor as follows. FIG. 3 is a flowchart showing the procedure and processing contents.

That is, the control unit 3 executes step 3 during communication.
The end of communication is monitored in a, and when the communication ends in this state, the process proceeds to step 3b, where the communication mode is determined. That is, it is determined whether the communication mode used in the communication is an audio communication mode using only audio or a videophone communication mode using video and audio.

Next, the control unit 3 proceeds to step 3c,
It is determined whether or not the communication that has just been performed is the first communication with a communication partner for which the call history has not been created. If it is the first communication with the communication partner, a new history is created in step 3d. In other words, if the telephone number, date and time, and name of the other party with whom you have just communicated are known, the name of the other party will be displayed. Each face image is edited on the RAM 22, and an icon indicating the communication mode determined in step 3b, that is, the voice communication mode or the videophone communication mode, is added to each of the information elements. Then, the generated call history is stored in the history storage area of the RAM 22 as the call history of the communication partner (step 3f).

On the other hand, if the communicating party is not the first communicating party, the process shifts to step 3e to add the current information to the outgoing / incoming call history of the corresponding communicating party. That is, in this case, the date and time of the current communication are added in association with the telephone number of the corresponding communication partner, and if a new name is found, the name of the communication partner and the other party's talk by TV telephone communication are added. When a face image of the user is newly received, the face image is additionally edited on the RAM 22, and an icon representing the communication mode determined in step 3b is added to each of the information elements. Then, the outgoing / incoming call history with this content updated is stored in the history storage area of the RAM 22 (step 3f).

Next, a description will be given of a display operation of the call history when making a call using the call history. 4 and 5
Is a flowchart showing the control procedure and its contents. In the standby state, when a display operation of the incoming call history or the telephone directory is performed upon making a call, the control unit 3 first determines whether the outgoing / incoming call history or the telephone directory is selected in step 4a by the microprocessor. If the result of this determination is that the telephone directory has been selected, the operation proceeds to step 4b, where R is entered in accordance with the registration number designation operation or scroll operation.
Selectively read the telephone directory registration information from AM22,
The information is displayed on the CD display 35.

On the other hand, if the transmission / reception history is selected, the microprocessor proceeds to step 4c, where the telephone number, date and time relating to the latest transmission / reception are first read out from the RAM 22, and then read out from the RAM 22. Display at 35. Next, it is determined in step 4d whether or not the name of the communication partner involved in the latest outgoing / incoming call and the presence or absence of a face image are present. If the name of the communication partner is registered in the telephone directory, the name is read from the telephone directory. If the face image of the user sent from the communication partner is stored in the RAM 22, this face is The video is read from RA22 and
It is displayed on the CD display 35 (step 4e). FIG. 6 shows an example of the display.

In step 4f, the microprocessor sets the communication mode relating to the latest outgoing / incoming call being displayed to RA in step 4f.
It reads from M22 and displays an icon representing this communication mode. For example, assuming that the communication mode is the videophone communication mode, in step 4g, FIG.
As shown in the figure, "T" is displayed at the top of the face image and at the bottom of the display screen.
V "is displayed. If the communication mode is the voice communication mode, "SP" is displayed in step 4h.

When the history information relating to the latest incoming / outgoing call is displayed, the microprocessor proceeds to step 4
In i, the past outgoing / incoming date and communication mode relating to the same communication partner are read out from the RAM 22 and, as shown in FIG.
The information is displayed on the CD display 35. FIG. 6 shows a case where an icon representing the audio communication mode is displayed as “S” and an icon representing the videophone communication mode is displayed as “T”.

Further, the microprocessor determines whether or not there is a record of video telephone communication in step 4j based on the displayed history information. If there is a track record, the communication mode changeover switch 33 is set in step 4k.
The communication mode selection switch 33f is invalidated in step 4m when the video telephone communication has never been performed in the past, and the communication mode is fixed to the voice communication mode. I do.

Now, in this state, the user presses the transmission key 33c.
Press. Then, the microprocessor detects this transmission operation in step 4n, and thereafter executes transmission control according to the contents of the transmission / reception history. That is, when the selected call history records the videophone communication mode as the communication mode, the operation state of the own device is set to a state corresponding to the videophone communication mode, and a predetermined videophone communication mode is set. A communication link is formed with the communication partner terminal in accordance with the communication protocol, and a video telephone communication operation is performed after the formation of the communication link. On the other hand, if the communication mode registered in the selected call history is the voice communication mode, the operation state of the own device is set to a state corresponding to the voice communication mode, and a predetermined voice communication protocol is set. A communication link is formed with the communication partner terminal in accordance with the above, and a voice communication operation is performed after the communication link is formed.

On the other hand, it is assumed that the user operates the search key 33e to select a communication partner other than the displayed communication partner. The microprocessor then proceeds to step 4p
In step (2), the call origination / reception history of the communication partner with the next newest transmission / reception order is selected, the telephone number, date, and time registered in this history are read out from the RAM 22 and displayed on the LCD display 35. If the name, face image, and communication mode of the communication partner are registered, these are read out from the RAM 22 and read out from the LCD display 3.
5 is additionally displayed. The control procedure for that is the same as the procedure previously described in steps 4d to 4i.

Similarly, every time the user operates the search key 33e, the call history of another communication partner is selected in the order of the newest call order, and the contents are read from the RAM 22 and displayed on the LCD display 35. Is displayed.

As described above, in this embodiment, when creating the call history, the communication mode determining means 20a determines whether the voice communication mode or the video telephone communication mode has been used as the communication mode. The determined communication mode is added to each information element such as a telephone number, date, time, name, face image and stored. When a call is made using the outgoing / incoming call history, an icon indicating the communication mode is displayed on the LCD display 35 together with the information elements.

Therefore, when the user performs retransmission or return transmission using the transmission / reception history, it is possible to confirm the communication mode usable for communication with the caller, thereby erroneously setting the communication mode. It is possible to always select the optimum communication mode and perform communication without the need. For this reason, the calling operability of the user is enhanced.

Further, since the communication mode is displayed as icons, there is an advantage that the communication mode can be displayed in a small display space. This effect is particularly effective in a terminal device in which the size of the display device must be limited to a small one such as a mobile phone.

The present invention is not limited to the above embodiment. For example, a communication mode registration area may be provided in the telephone directory, and an available communication mode may be written in the communication mode registration area of the telephone directory based on the contents of the communication history when the call history is created or updated. By doing so, the communication mode is automatically refilled and registered in the telephone directory based on the contents of the call history. That is,
As the use of the terminal device progresses, the contents of the telephone directory are adaptively replenished.

Therefore, the user does not need to register the communication mode in advance in the telephone directory for each calling party, and automatically changes the communication mode even if the registered mode changes due to a change in the model of the communication party. It can be updated.

Also, when the telephone directory is displayed, if a communication mode is registered, the communication mode may be displayed together with the telephone number and name, and a call can be made based on the telephone directory. If the communication mode is registered when the operation is performed, the operation state of the device may be set according to the communication mode.

Furthermore, the present invention provides a mobile communication terminal device having a voice communication mode and a videophone communication mode, as well as a PDC (Personal Communication Terminal) as well as a mobile communication terminal and a PHS terminal used in a CDMA wireless communication system. D
digital Cellular) and GSM (Global System For Mobil)
e Communication) can be applied to a terminal or the like used in a TDMA wireless communication system.

In addition, the information elements constituting the communication history and the display format thereof, the procedure for creating and receiving the call history, the contents thereof, the control procedure for displaying the call history and the contents thereof, the circuit configuration of the mobile communication terminal device, etc. Various modifications can be made without departing from the scope of the present invention.

Further, it goes without saying that the present invention can be applied to a communication terminal device capable of performing multimedia communication including video and computer data as well as video telephone communication.

[0042]

As described above in detail, according to the present invention, communication is performed by selectively using a voice communication mode for making a call using voice and a multimedia communication mode for making a call using voice and video. In the mobile communication terminal device to perform, each time communication is performed, it is determined whether the communication mode used in the communication is the voice communication mode or the multimedia communication mode, and based on the determination result, the communication mode used for the communication is determined. The information indicating the communication mode is stored in the communication history.

Therefore, according to the present invention, it is possible to reliably and smoothly select a communication mode when making a call using a communication history, thereby providing a mobile communication terminal device which improves user operability. can do.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an embodiment of a mobile communication terminal device according to the present invention.

FIG. 2 is an apparatus front view showing a configuration of an input / output unit of the terminal apparatus shown in FIG.

FIG. 3 is an exemplary flowchart showing the procedure and contents of a call generation / reception history creation process in the terminal device shown in FIG. 1;

FIG. 4 is a flowchart showing a procedure of a call history display control of the terminal device shown in FIG. 1 and a first half of the contents thereof;

FIG. 5 is a flowchart showing the procedure of the call history display control of the terminal device shown in FIG. 1 and the latter half of the contents thereof;

FIG. 6 is a diagram showing an example of a configuration of an incoming call history.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Radio | wireless part 2 ... Control part 3 ... Input / output part 4 ... Power supply part 11 ... Antenna 12 ... Antenna duplexer (DPX) 13 ... Receiving circuit (RX) 14 ... Frequency synthesizer (SYN) 15 ... Transmission circuit (TX) 20 ... Baseband circuit 20a ... Communication mode determination means 20b ... History creation means 20c ... Voice communication control means 20d ... Videophone communication control means 21 ... ROM 22 ... RAM 31 ... Microphone 32 ... Speaker 33 ... Key input unit 34 ... Display drive Circuit (DRY) 35 Liquid crystal display (LCD) 36 Camera (CAM) 37 Sounder 41 Battery 42 Charging circuit (CHG) 43 Voltage generating circuit (PS)

Claims (1)

[Claims] 1. A mobile communication terminal device for selectively using a voice communication mode for making a call using voice and a multimedia communication mode for making a call using voice and video. Each time the communication mode used in the communication is the voice communication mode or the multimedia communication mode, the communication mode used for the communication is determined based on the determination result of the determination means. Communication history creating means for creating a communication history including information to represent the mobile communication terminal.