JP2002204476A - Mobile communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile communication terminal that can prevent the operability from being deteriorated even in a state that transmission of a radio wave is limited. SOLUTION: When an incoming call function is deactivated and a calling function is activated by a menu operation by operation keys 34, only incoming call processing and position registration processing are deactivated among display processing of reception strength icons, transmission processing, the incoming call processing and the position registration processing. In this case, an antenna 16 outputs no reply signal for the incoming call or position registration, but a display device 32 displays the reception strength icon and the transmission processing is conducted when dialing is made.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable communication terminal, and more particularly to, for example, a PHS (Personal Handy phone System).
The present invention relates to a mobile communication terminal that is applied to m) and establishes a communication protocol with a base station to make a call.

[0002]

2. Description of the Related Art According to a recent report, when a radio wave is transmitted from a portable communication terminal in a situation where a patient with a cardiac pacemaker is implanted nearby, the radio wave causes the cardiac pacemaker to malfunction and adversely affect the patient. It is said to give. For this reason, the use of portable communication terminals in hospitals and crowded trains has recently tended to be restricted. On the other hand, when the power of the mobile communication terminal is completely turned off, the use of functions that do not involve transmission of radio waves, such as mail creation and telephone directory editing, is also restricted, and the usability deteriorates.

In consideration of such a problem, recently, a portable communication terminal which turns off only a communication function when a specific mode is set and enables use of a function without transmitting a radio wave has appeared. I have.

[0004]

However, if the communication function is turned off, the reception state of the radio wave cannot be detected, so that it is inconvenient when the user wants to make a call while watching the surroundings. For example, if you want to make a call suddenly when the train is not crowded, you need to cancel the specific mode and check the reception strength of the radio wave. It is necessary, and there is a problem in operability. On the other hand, the setting / cancellation of the specific mode is left to the moral of the user, and there is a problem in the effectiveness of the restriction of the dial operation by the setting of the specific mode.

[0005] Therefore, a main object of the present invention is to provide a portable communication terminal capable of preventing a decrease in operability even in a situation where transmission of radio waves is restricted.

[0006]

SUMMARY OF THE INVENTION According to the present invention, when a first signal is received from a base station, a response signal is output to establish a communication protocol with the base station. Second establishing means for outputting a connection request signal to establish a communication protocol with the base station when received, display means for displaying a reception strength icon corresponding to the reception level of the second signal transmitted from the base station in a predetermined cycle, And a disabling means for disabling the first establishing means among the first establishing means, the second establishing means and the display means when a predetermined mode is selected.

[0007]

When the first signal is received from the base station, the first establishing means outputs a response signal to establish a communication protocol with the base station. When a call operation is performed by the operation key, the second
Establishing means outputs a connection request signal to establish a communication protocol with the base station. On the other hand, the display means displays a reception strength icon corresponding to a reception level of the second signal transmitted from the base station at a predetermined cycle. When the predetermined mode is selected, the first establishment means, the second establishment means, and the display means,
Only the establishing means is disabled by the disabling means. As a result, even when the predetermined mode is selected, the reception strength icon is updated according to the reception level of the second signal, and when a call operation is performed by the operation key, a communication protocol is established with the base station.

The predetermined mode is a mode in which the incoming call function is preferably turned off and the outgoing call function is turned on.

When the first signal is an incoming call signal, the first establishing means establishes a communication protocol for incoming call processing.

If the first signal is an area identification signal, the first establishing means establishes a communication protocol for location registration processing.

The operation keys are preferably covered with a cover when not in use.

[0012]

According to the present invention, even when the predetermined mode is selected, the reception intensity icon is updated according to the reception level of the second signal, and when a call operation is performed by the operation key, the reception intensity icon is updated with the base station. Since the communication protocol is established, it is possible to prevent a decrease in operability even in a situation where transmission of radio waves is restricted.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0014]

Referring to FIG. 1, a portable communication terminal 10 of this embodiment employs a PHS system and includes a telephone device 12 and a music reproducing device 14. Each of the devices 12 and 14 is connected by a cable 54, and an earphone 56 is connected to the music reproducing device 14.

When an incoming call operation or a dial operation is performed by the operation keys 34 provided on the telephone device 12, C is input.
PU 36 establishes a communication protocol with a base station (not shown). As a result, when the mobile phone shifts to the talk-enabled state (online state), the RF signal transmitted from the base station is received by the antenna 16, and the received RF signal is transmitted to the RF circuit 18, the modem 20, the TDMA circuit 22, and the codec 24 by the predetermined code. Is converted to an analog audio signal. The analog audio signal output from the codec 24 is output from the speaker 30 via the amplifier 26b.

On the other hand, when voice is captured by the microphone 28, an analog voice signal corresponding to the captured voice is supplied to the codec 24 via the amplifier 26a. The analog audio signal is supplied to the codec 24 and the TDMA circuit 2.
2, converted into an RF signal through modulation processing by the modem 20 and the RF circuit 18, and the converted RF signal is transmitted from the antenna 16. The display 32 is used for displaying an incoming call notification and a telephone number registered in the memory 28.

When a music playback operation is performed by the operation keys 34, the CPU 36
A reproduction command is given to 44. The CPU 44 reads the compressed music data from the memory card 48 inserted in the slot 46, and
This is given to the decoder 50. The compressed music data is expanded by the MP3 decoder 50 and converted into an analog signal. The D / A converted expanded music signal is output from the earphone 56 via the amplifier 52. The display 40 is used to display the title of the music being reproduced, and the operation keys 42 are used to adjust the volume. The compressed music data is downloaded to the memory card 48 through a communication line.

FIGS. 2A and 2B show the appearance of the portable communication terminal 10. FIG. Referring to FIG. 2A, telephone device 12 includes a plate-shaped first main body 12a provided with display 34 and speaker 30, and a plate-shaped second main body 12b provided with operation keys 34 and microphone 28. And
The first main body 12a and the second main body 12b are connected to each other at a piece that is in contact with each other, and the first main body 12a rotates about this piece. When used, the first main body 12a is opened so as to form an angle of about 150 ° with the second main body 12b, but when not used, the first main body 12a is closed as shown in FIG. The operation keys 34 provided on the second main body 12b are covered by the first main body 12a. Therefore, the first main body 12a functions as a cover that covers the operation keys 34a when not in use.

The operation keys 34 include a ten key 34a for performing a dial operation, a start key 34b for starting a call, an end key 34c for ending a call, and a menu key for displaying a menu on the display 32. 34d, a cross key 34e for moving a cursor on the displayed menu, a selection key 34f for selecting a desired menu item, and the like.

The CPU 36 processes the flowchart shown in FIG. 3 when setting the menu function, and processes the flowchart shown in FIGS. 4 and 5 when in the standby state. FIG. 3 is an interrupt routine executed in response to the operation of the menu key 34d, and FIGS. 4 and 5 are main routines processed in a steady state. Therefore, when the processing of the interrupt routine shown in FIG. 3 is completed, the process returns to the main routine shown in FIGS.

First, referring to FIG. 3, in step S1, the menu screen shown in FIG.
According to FIG. 6, a message “Select incoming call off function?” And menu items “YES” and “NO” are displayed, and the cursor points to one of the menu items. If "NO" is selected by the cross key 34e and the selection key 34f, the incoming call off flag 36a is set to "0" in a step S5, and the steps S7 and S7 are performed.
In step 29, "incoming off" is not displayed and an incoming call waiting screen is displayed. The display on the display 32 is updated from the menu screen shown in FIG. 6 to the incoming call waiting screen shown in FIG. According to FIG. 9, a reception sensitivity icon Icon1 and a battery remaining amount icon Icon2 are displayed at the top of the screen, and today's date and current time are displayed at the center of the screen. By the processing of step S7, the incoming call waiting screen is displayed as shown in FIG.
A message of "incoming OFF" as shown in FIG. 0 is not displayed.

In the menu screen shown in FIG.
If "S" is selected, YES is determined in step S3,
In step S9, the incoming call off flag 36a is set to "1", and the menu screen shown in FIG. According to FIG. 7, a message “Call prohibition function selected?”, Menu items “YES” and “NO”, and a cursor pointing to one of the menu items are displayed. Here, "YE
When "S" is selected, the call prohibition flag 36b is set to "1" in step S15, and steps S27 and S2
9, an "incoming off" display and an incoming call waiting screen display are performed. Thus, the display on the display 32 is updated from FIG. 7 to FIG. According to FIG. 10, a message “Incoming OFF” is displayed at the lower right of the incoming call waiting screen.

"NO" on the menu screen shown in FIG.
Is selected, NO is determined in step S13, the call prohibition flag 36b is set in step S17, and the menu screen shown in FIG. 8 is displayed on the display 32 in step S19. According to FIG. 8, the message of "release of incoming call off function at the time of calling" and "YES" and "NO"
Are displayed, and the cursor points to one of the menu items. If "YES" is selected here, the off-function release flag 36c is determined in step S23.
Is set to "1", but if "NO" is selected, the off-function release flag 36c is set to "0" in step S25. When the process of step S23 or S25 is completed, an "incoming off" display and an incoming call waiting screen display are performed in steps S27 and S29. Display 3
The display of No. 2 is updated from FIG. 8 to FIG.

Referring to FIGS. 4 and 5, first, in each of steps S31 and S45, it is determined whether or not a PCH signal has been received and whether or not a timeout has occurred. P
The CH signal is a control channel signal transmitted from the base station every 1.2 seconds. When the PCH signal is received, YES is determined in step S33. For example, when the PHS signal is not received continuously for 3 seconds, Y is determined in step S45.
Judge as ES. If "YES" is determined in the step S31, the process proceeds to the step S33 and the subsequent steps. If "YES" is determined in the step S45, "out of range" is displayed instead of the reception strength icon Icon1 in a step S47, and then a step S5
Go to 7. Also, when the PCH signal has not been received but the time-out has not yet occurred, step S45 is also performed.
Then, the process proceeds to step S57.

In step S33, the level of the received PCH signal is detected, and in step S35, the reception strength icon Icon1 is updated according to the detected level. When the update of the reception strength icon Icon1 is completed, the process proceeds to step S37, and it is determined whether the PCH signal received this time includes its own telephone number. If the own telephone number is included, it is determined that the incoming call is directed to the user (YES in step S39), and the state of the incoming call off flag 36a is determined in step S49. Here, if the incoming call off flag indicates “0”, steps S51 and S53
Perform the incoming call processing and the telephone call processing, and wait for the end of the telephone call to proceed from step S55 to step S57. On the other hand, if the incoming call off flag is “1”, the process proceeds to step S57 without performing steps S51 to S55.
Proceed to.

If the own PC number is not included in the received PCH signal, the process proceeds from step S37 to step S39.
Then, it is determined whether or not the paging area information set in the mobile communication terminal 10 matches the paging area information included in the PCH signal. Further, when the two paging area information do not match, the state of the incoming call off flag 36a is determined in step S41. If the incoming call off flag 36a indicates "0", the process proceeds to step S43.
After step S57, the process proceeds to step S57. On the other hand, when the paging area information set in the mobile communication terminal 10 matches the paging area information included in the PCH signal, or when the incoming call off flag 36a is "1", the processing in step S43 is not performed. Step S
Proceed to 57.

In a step S57, it is determined whether or not a dial operation (calling operation) is performed, and in a step S71, it is determined whether or not a music reproduction / stop operation is performed. If the music playback / stop operation has been performed, a music playback / stop command is issued in step S73.
After giving to U44, the process returns to step S31. On the other hand, if a dial operation has been performed, YES in step S57
Thus, the state of the call prohibition flag 36b is determined in step S59. Then, the call prohibition flag 36b is set to "1".
When the call prohibition flag 36b indicates "0", the process returns to the step S31.
To determine the state of the off function release flag 36c. When the off-function release flag 36c indicates "0", the process proceeds directly to step S65, where the off-function release flag 36c is "1".
Is displayed, the incoming call off flag 36a is updated to "0" in step S63, and the process proceeds to step S65. In step S65, a calling process is performed, and in step S67, a call process is performed. When the call ends, YE is determined in step S69.
S is determined, and the process returns to step S31.

In the location registration processing in step S43 and the reception processing in step S51, a response signal (radio wave) is output from the antenna 16 to establish a communication protocol with the base station. In the transmission processing in step S65, a call signal is transmitted from the antenna 16 (Radio wave) to establish a communication protocol with the base station. At the time of outputting such a response signal or a call signal, if a patient having a cardiac pacemaker implanted in the body is present nearby, the cardiac pacemaker may malfunction. Here, the location registration process and the incoming call process are performed irrespective of the user's intention, but the outgoing call process is performed by the user's intention (dial operation). Then, the output of the calling signal based on the dial operation can be stopped by the moral of the user, but the incoming call processing cannot be stopped by the moral of the user.

Here, it is possible to prevent the output of a call signal or a response signal by completely turning off the communication function. However, since the display of the reception strength icon Icon1 is also turned off in this case, the surrounding situation can be prevented. When the user wants to talk for a short time while watching the operability, the operability is greatly reduced.

For this reason, in this embodiment, selection / non-selection of each of the incoming call off function and the call inhibiting function is enabled, and when the incoming call off function is selected and the call inhibiting function is not selected (incoming call) When the function is turned off and the transmission function is turned on), only the reception processing and the location registration processing of the display processing, transmission processing, reception processing and location registration processing of the reception strength icon Icon1 are disabled. . As a result, the reception strength icon Icon1 is displayed on the display 32, and a dialing operation is performed to perform a calling process. As a result, when a sudden call is desired, the reception intensity can be easily confirmed by the reception intensity icon Icon1, and if the reception intensity is good, the call can be made with the other party by dialing.

In this embodiment, a PHS mobile communication terminal is used.
(Personal Digital Cellular) or CDMA (Code
Division Multiple Access) may be adopted. Further, the portable communication terminal of this embodiment is provided with a music reproducing function, but may have a photographing function instead or in addition to the music reproducing function. In this case, the camera device may be integrally formed with the portable communication terminal, or a separate camera device may be detachably mounted.

[Brief description of the drawings]

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

FIG. 2A is a perspective view showing the telephone device in an open state (when in use), and FIG. 2B is a perspective view showing the telephone device in a closed state (when not in use).

FIG. 3 is a flowchart showing a part of the operation of the embodiment in FIG. 1;

FIG. 4 is a flowchart showing another portion of the operation of the embodiment in FIG. 1;

FIG. 5 is a flowchart showing another portion of the operation of the embodiment in FIG. 1;

FIG. 6 is an illustrative view showing one example of a menu screen displayed on a display;

FIG. 7 is an illustrative view showing another example of the menu screen displayed on the display;

FIG. 8 is an illustrative view showing another example of the menu screen displayed on the display;

FIG. 9 is an illustrative view showing one example of an incoming call waiting screen displayed on a display;

FIG. 10 is an illustrative view showing another example of the incoming call waiting screen displayed on the display;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Portable communication terminal 12 ... Telephone device 14 ... Music playback device 16 ... RF circuit 18 ... Modem 20 ... TDMA circuit 22 ... Codec 32, 40 ... Display 34, 42 ... Operation key 44 ... Memory card 36, 44 ... CPU 50 ... MP3 decoder 56 ... Earphone

Claims (5)

[Claims] 1. A first establishing means for outputting a response signal when receiving a first signal from a base station to establish a communication protocol with the base station, and for generating a connection request signal when a call operation is performed by an operation key. Second establishing means for outputting and establishing the communication protocol with the base station, display means for displaying a reception strength icon corresponding to a reception level of a second signal transmitted from the base station in a predetermined cycle,
And when the predetermined mode is selected, the first establishing means,
A portable communication terminal comprising a disabling unit for disabling only the first establishing unit out of the second establishing unit and the display unit. 2. The predetermined mode is a mode in which an incoming call function is turned off and an outgoing call function is turned on.
Mobile communication terminal as described. 3. The portable communication terminal according to claim 1, wherein said first signal is an incoming call signal, and said first establishing means establishes said communication protocol for incoming call processing. 4. The portable communication terminal according to claim 1, wherein said first signal is an area identification signal, and said first establishing means establishes said communication protocol for location registration processing. 5. The portable communication terminal according to claim 1, further comprising a cover that covers said operation keys when not in use.